nvidia-smi(1) NVIDIA nvidia-smi(1)
NAME
nvidia-smi - NVIDIA System Management Interface program
SYNOPSIS
nvidia-smi [OPTION1 [ARG1]] [OPTION2 [ARG2]] ...
DESCRIPTION
nvidia-smi (also NVSMI) provides monitoring and management capabilities
for each of NVIDIA's Tesla, Quadro, GRID and GeForce devices from Fermi
and higher architecture families. GeForce Titan series devices are sup-
ported for most functions with very limited information provided for
the remainder of the Geforce brand. NVSMI is a cross platform tool
that supports all standard NVIDIA driver-supported Linux distros, as
well as 64bit versions of Windows starting with Windows Server 2008 R2.
Metrics can be consumed directly by users via stdout, or provided by
file via CSV and XML formats for scripting purposes.
Note that much of the functionality of NVSMI is provided by the under-
lying NVML C-based library. See the NVIDIA developer website link be-
low for more information about NVML. NVML-based python bindings are
also available.
The output of NVSMI is not guaranteed to be backwards compatible. How-
ever, both NVML and the Python bindings are backwards compatible, and
should be the first choice when writing any tools that must be main-
tained across NVIDIA driver releases.
NVML SDK: http://developer.nvidia.com/nvidia-management-library-nvml/
Python bindings: http://pypi.python.org/pypi/nvidia-ml-py/
OPTIONS
GENERAL OPTIONS
-h, --help
Print usage information and exit.
SUMMARY OPTIONS
-L, --list-gpus
List each of the NVIDIA GPUs in the system, along with their UUIDs.
-B, --list-excluded-gpus
List each of the excluded NVIDIA GPUs in the system, along with their
UUIDs.
QUERY OPTIONS
-q, --query
Display GPU or Unit info. Displayed info includes all data listed in
the (GPU ATTRIBUTES) or (UNIT ATTRIBUTES) sections of this document.
Some devices and/or environments don't support all possible informa-
tion. Any unsupported data is indicated by a "N/A" in the output. By
default information for all available GPUs or Units is displayed. Use
the -i option to restrict the output to a single GPU or Unit.
[plus optional]
-u, --unit
Display Unit data instead of GPU data. Unit data is only available for
NVIDIA S-class Tesla enclosures.
-i, --id=ID
Display data for a single specified GPU or Unit. The specified id may
be the GPU/Unit's 0-based index in the natural enumeration returned by
the driver, the GPU's board serial number, the GPU's UUID, or the GPU's
PCI bus ID (as domain:bus:device.function in hex). It is recommended
that users desiring consistency use either UUID or PCI bus ID, since
device enumeration ordering is not guaranteed to be consistent between
reboots and board serial number might be shared between multiple GPUs
on the same board.
-f FILE, --filename=FILE
Redirect query output to the specified file in place of the default
stdout. The specified file will be overwritten.
-x, --xml-format
Produce XML output in place of the default human-readable format. Both
GPU and Unit query outputs conform to corresponding DTDs. These are
available via the --dtd flag.
--dtd
Use with -x. Embed the DTD in the XML output.
--debug=FILE
Produces an encrypted debug log for use in submission of bugs back to
NVIDIA.
-d TYPE, --display=TYPE
Display only selected information: MEMORY, UTILIZATION, ECC, TEMPERA-
TURE, POWER, CLOCK, COMPUTE, PIDS, PERFORMANCE, SUPPORTED_CLOCKS,
PAGE_RETIREMENT, ACCOUNTING, ENCODER_STATS, SUPPORTED_GPU_TARGET_TEMP,
ROW_REMAPPER, VOLTAGE, RESET_STATUS. Flags can be combined with comma
e.g. "MEMORY,ECC". Sampling data with max, min and avg is also re-
turned for POWER, UTILIZATION and CLOCK display types. Doesn't work
with -u/--unit or -x/--xml-format flags.
-l SEC, --loop=SEC
Continuously report query data at the specified interval, rather than
the default of just once. The application will sleep in-between
queries. Note that on Linux ECC error or XID error events will print
out during the sleep period if the -x flag was not specified. Pressing
Ctrl+C at any time will abort the loop, which will otherwise run indef-
initely. If no argument is specified for the -l form a default inter-
val of 5 seconds is used.
SELECTIVE QUERY OPTIONS
Allows the caller to pass an explicit list of properties to query.
[one of]
--query-gpu=
Information about GPU. Pass comma separated list of properties you
want to query. e.g. --query-gpu=pci.bus_id,persistence_mode. Call
--help-query-gpu for more info.
--query-supported-clocks=
List of supported clocks. Call --help-query-supported-clocks for more
info.
--query-compute-apps=
List of currently active compute processes. Call --help-query-com-
pute-apps for more info.
--query-accounted-apps=
List of accounted compute processes. Call --help-query-accounted-apps
for more info. This query is not supported on vGPU host.
--query-retired-pages=
List of GPU device memory pages that have been retired. Call
--help-query-retired-pages for more info.
--query-remapped-rows=
Information about remapped rows. Call --help-query-remapped-rows for
more info.
[mandatory]
--format=
Comma separated list of format options:
• csv - comma separated values (MANDATORY)
• noheader - skip first line with column headers
• nounits - don't print units for numerical values
[plus any of]
-i, --id=ID
Display data for a single specified GPU. The specified id may be the
GPU's 0-based index in the natural enumeration returned by the driver,
the GPU's board serial number, the GPU's UUID, or the GPU's PCI bus ID
(as domain:bus:device.function in hex). It is recommended that users
desiring consistency use either UUID or PCI bus ID, since device enu-
meration ordering is not guaranteed to be consistent between reboots
and board serial number might be shared between multiple GPUs on the
same board.
-f FILE, --filename=FILE
Redirect query output to the specified file in place of the default
stdout. The specified file will be overwritten.
-l SEC, --loop=SEC
Continuously report query data at the specified interval, rather than
the default of just once. The application will sleep in-between
queries. Note that on Linux ECC error or XID error events will print
out during the sleep period if the -x flag was not specified. Pressing
Ctrl+C at any time will abort the loop, which will otherwise run indef-
initely. If no argument is specified for the -l form a default inter-
val of 5 seconds is used.
-lms ms, --loop-ms=ms
Same as -l,--loop but in milliseconds.
DEVICE MODIFICATION OPTIONS
[any one of]
-pm, --persistence-mode=MODE
Set the persistence mode for the target GPUs. See the (GPU ATTRIBUTES)
section for a description of persistence mode. Requires root. Will
impact all GPUs unless a single GPU is specified using the -i argument.
The effect of this operation is immediate. However, it does not per-
sist across reboots. After each reboot persistence mode will default
to "Disabled". Available on Linux only.
-e, --ecc-config=CONFIG
Set the ECC mode for the target GPUs. See the (GPU ATTRIBUTES) section
for a description of ECC mode. Requires root. Will impact all GPUs
unless a single GPU is specified using the -i argument. This setting
takes effect after the next reboot and is persistent.
-p, --reset-ecc-errors=TYPE
Reset the ECC error counters for the target GPUs. See the (GPU AT-
TRIBUTES) section for a description of ECC error counter types. Avail-
able arguments are 0|VOLATILE or 1|AGGREGATE. Requires root. Will im-
pact all GPUs unless a single GPU is specified using the -i argument.
The effect of this operation is immediate.
-c, --compute-mode=MODE
Set the compute mode for the target GPUs. See the (GPU ATTRIBUTES)
section for a description of compute mode. Requires root. Will impact
all GPUs unless a single GPU is specified using the -i argument. The
effect of this operation is immediate. However, it does not persist
across reboots. After each reboot compute mode will reset to "DE-
FAULT".
-dm TYPE, --driver-model=TYPE
-fdm TYPE, --force-driver-model=TYPE
Enable or disable TCC driver model. For Windows only. Requires admin-
istrator privileges. -dm will fail if a display is attached, but -fdm
will force the driver model to change. Will impact all GPUs unless a
single GPU is specified using the -i argument. A reboot is required
for the change to take place. See Driver Model for more information on
Windows driver models.
--gom=MODE
Set GPU Operation Mode: 0/ALL_ON, 1/COMPUTE, 2/LOW_DP Supported on
GK110 M-class and X-class Tesla products from the Kepler family. Not
supported on Quadro and Tesla C-class products. LOW_DP and ALL_ON are
the only modes supported on GeForce Titan devices. Requires adminis-
trator privileges. See GPU Operation Mode for more information about
GOM. GOM changes take effect after reboot. The reboot requirement
might be removed in the future. Compute only GOMs don't support WDDM
(Windows Display Driver Model)
-r, --gpu-reset
Trigger a reset of one or more GPUs. Can be used to clear GPU HW and
SW state in situations that would otherwise require a machine reboot.
Typically useful if a double bit ECC error has occurred. Optional -i
switch can be used to target one or more specific devices. Without
this option, all GPUs are reset. Requires root. There can't be any
applications using these devices (e.g. CUDA application, graphics ap-
plication like X server, monitoring application like other instance of
nvidia-smi). There also can't be any compute applications running on
any other GPU in the system.
Starting with the NVIDIA Ampere architecture, GPUs with NVLink connec-
tions can be individually reset. On Ampere NVSwitch systems, Fabric
Manager is required to facilitate reset. On Hopper and later NVSwitch
systems, the dependency on Fabric Manager to facilitate reset is re-
moved.
If Fabric Manager is not running, or if any of the GPUs being reset are
based on an architecture preceding the NVIDIA Ampere architecture, any
GPUs with NVLink connections to a GPU being reset must also be reset in
the same command. This can be done either by omitting the -i switch,
or using the -i switch to specify the GPUs to be reset. If the -i op-
tion does not specify a complete set of NVLink GPUs to reset, this com-
mand will issue an error identifying the additional GPUs that must be
included in the reset command.
GPU reset is not guaranteed to work in all cases. It is not recommended
for production environments at this time. In some situations there may
be HW components on the board that fail to revert back to an initial
state following the reset request. This is more likely to be seen on
Fermi-generation products vs. Kepler, and more likely to be seen if the
reset is being performed on a hung GPU.
Following a reset, it is recommended that the health of each reset GPU
be verified before further use. If any GPU is not healthy a complete
reset should be instigated by power cycling the node.
GPU reset operation will not be supported on MIG enabled vGPU guests.
Visit http://developer.nvidia.com/gpu-deployment-kit to download the
GDK.
-lgc, --lock-gpu-clocks=MIN_GPU_CLOCK,MAX_GPU_CLOCK
Specifies <minGpuClock,maxGpuClock> clocks as a pair (e.g. 1500,1500)
that defines closest desired locked GPU clock speed in MHz. Input can
also use be a singular desired clock value (e.g. <GpuClockValue>). Op-
tionally, --mode can be supplied to specify the clock locking modes.
Supported on Volta+. Requires root
--mode=0 (Default)
This mode is the default clock locking mode and provides
the highest possible frequency accuracies supported by
the hardware.
--mode=1 The clock locking algorithm leverages close loop con-
trollers to achieve frequency accuracies with improved
perf per watt for certain class of applications. Due to
convergence latency of close loop controllers, the fre-
quency accuracies may be slightly lower than default
mode 0.
-rgc, --reset-gpu-clocks
Resets the GPU clocks to the default value. Supported on Volta+. Re-
quires root.
-ac, --applications-clocks=MEM_CLOCK,GRAPHICS_CLOCK
Specifies maximum <memory,graphics> clocks as a pair (e.g. 2000,800)
that defines GPU's speed while running applications on a GPU. Sup-
ported on Maxwell-based GeForce and from the Kepler+ family in
Tesla/Quadro/Titan devices. Requires root.
-rac, --reset-applications-clocks
Resets the applications clocks to the default value. Supported on Max-
well-based GeForce and from the Kepler+ family in Tesla/Quadro/Titan
devices. Requires root.
-lmcd, --lock-memory-clocks-deferred
Specifies the memory clock that defines the closest desired Memory
Clock in MHz. The memory clock takes effect the next time the GPU is
initialized. This can be guaranteed by unloading and reloading the ker-
nel module. Requires root.
-rmcd, --reset-memory-clocks-deferred
Resets the memory clock to default value. Driver unload and reload is
required for this to take effect. This can be done by unloading and
reloading the kernel module. Requires root.
-pl, --power-limit=POWER_LIMIT
Specifies maximum power limit in watts. Accepts integer and floating
point numbers. it takes an optional argument --scope. Only on sup-
ported devices from Kepler family. Requires administrator privileges.
Value needs to be between Min and Max Power Limit as reported by
nvidia-smi.
-sc, --scope=0/GPU, 1/TOTAL_MODULE
Specifies the scope of the power limit. Following are the options:
0/GPU: This only changes power limits for the GPU 1/Module: This
changes the power for the module containing multiple components. E.g.
GPU and CPU.
-cc, --cuda-clocks=MODE
Overrides or restores default CUDA clocks Available arguments are 0|RE-
STORE_DEFAULT or 1|OVERRIDE.
-am, --accounting-mode=MODE
Enables or disables GPU Accounting. With GPU Accounting one can keep
track of usage of resources throughout lifespan of a single process.
Only on supported devices from Kepler family. Requires administrator
privileges. Available arguments are 0|DISABLED or 1|ENABLED.
-caa, --clear-accounted-apps
Clears all processes accounted so far. Only on supported devices from
Kepler family. Requires administrator privileges.
--auto-boost-default=MODE
Set the default auto boost policy to 0/DISABLED or 1/ENABLED, enforcing
the change only after the last boost client has exited. Only on cer-
tain Tesla devices from the Kepler+ family and Maxwell-based GeForce
devices. Requires root.
--auto-boost-default-force=MODE
Set the default auto boost policy to 0/DISABLED or 1/ENABLED, enforcing
the change immediately. Only on certain Tesla devices from the Kepler+
family and Maxwell-based GeForce devices. Requires root.
--auto-boost-permission=MODE
Allow non-admin/root control over auto boost mode. Available arguments
are 0|UNRESTRICTED, 1|RESTRICTED. Only on certain Tesla devices from
the Kepler+ family and Maxwell-based GeForce devices. Requires root.
-mig, --multi-instance-gpu=MODE
Enables or disables Multi Instance GPU mode. Only supported on devices
based on the NVIDIA Ampere architecture. Requires root. Available ar-
guments are 0|DISABLED or 1|ENABLED.
-gtt, --gpu-target-temp=MODE
Set GPU Target Temperature for a GPU in degree celsius. Requires ad-
ministrator privileges. Target temperature should be within limits
supported by GPU. These limits can be retrieved by using query option
with SUPPORTED_GPU_TARGET_TEMP.
[plus optional]
-i, --id=ID
Modify a single specified GPU. The specified id may be the GPU/Unit's
0-based index in the natural enumeration returned by the driver, the
GPU's board serial number, the GPU's UUID, or the GPU's PCI bus ID (as
domain:bus:device.function in hex). It is recommended that users de-
siring consistency use either UUID or PCI bus ID, since device enumera-
tion ordering is not guaranteed to be consistent between reboots and
board serial number might be shared between multiple GPUs on the same
board.
UNIT MODIFICATION OPTIONS
-t, --toggle-led=STATE
Set the LED indicator state on the front and back of the unit to the
specified color. See the (UNIT ATTRIBUTES) section for a description
of the LED states. Allowed colors are 0|GREEN and 1|AMBER. Requires
root.
[plus optional]
-i, --id=ID
Modify a single specified Unit. The specified id is the Unit's 0-based
index in the natural enumeration returned by the driver.
SHOW DTD OPTIONS
--dtd
Display Device or Unit DTD.
[plus optional]
-f FILE, --filename=FILE
Redirect query output to the specified file in place of the default
stdout. The specified file will be overwritten.
-u, --unit
Display Unit DTD instead of device DTD.
stats
Display statistics information about the GPU. Use "nvidia-smi stats
-h" for more information. Linux only.
topo
Display topology information about the system. Use "nvidia-smi topo
-h" for more information. Linux only. Shows all GPUs NVML is able to
detect but CPU and NUMA node affinity information will only be shown
for GPUs with Kepler or newer architectures. Note: GPU enumeration is
the same as NVML.
drain
Display and modify the GPU drain states. A drain state is one in which
the GPU is no longer accepting new clients, and is used while preparing
to power down the GPU. Use "nvidia-smi drain -h" for more information.
Linux only.
nvlink
Display nvlink information. Use "nvidia-smi nvlink -h" for more infor-
mation.
clocks
Query and control clocking behavior. Use "nvidia-smi clocks --help" for
more information.
vgpu
Display information on GRID virtual GPUs. Use "nvidia-smi vgpu -h" for
more information.
mig
Provides controls for MIG management.
boost-slider
Provides controls for boost sliders management.
power-hint
Provides queries for power hint.
conf-compute
Provides control and queries for confidential compute.
RETURN VALUE
Return code reflects whether the operation succeeded or failed and what
was the reason of failure.
• Return code 0 - Success
• Return code 2 - A supplied argument or flag is invalid
• Return code 3 - The requested operation is not available on tar-
get device
• Return code 4 - The current user does not have permission to ac-
cess this device or perform this operation
• Return code 6 - A query to find an object was unsuccessful
• Return code 8 - A device's external power cables are not prop-
erly attached
• Return code 9 - NVIDIA driver is not loaded
• Return code 10 - NVIDIA Kernel detected an interrupt issue with
a GPU
• Return code 12 - NVML Shared Library couldn't be found or loaded
• Return code 13 - Local version of NVML doesn't implement this
function
• Return code 14 - infoROM is corrupted
• Return code 15 - The GPU has fallen off the bus or has otherwise
become inaccessible
• Return code 255 - Other error or internal driver error occurred
GPU ATTRIBUTES
The following list describes all possible data returned by the -q de-
vice query option. Unless otherwise noted all numerical results are
base 10 and unitless.
Timestamp
The current system timestamp at the time nvidia-smi was invoked. For-
mat is "Day-of-week Month Day HH:MM:SS Year".
Driver Version
The version of the installed NVIDIA display driver. This is an al-
phanumeric string.
Attached GPUs
The number of NVIDIA GPUs in the system.
Product Name
The official product name of the GPU. This is an alphanumeric string.
For all products.
Display Mode
A flag that indicates whether a physical display (e.g. monitor) is cur-
rently connected to any of the GPU's connectors. "Enabled" indicates
an attached display. "Disabled" indicates otherwise.
Display Active
A flag that indicates whether a display is initialized on the GPU's
(e.g. memory is allocated on the device for display). Display can be
active even when no monitor is physically attached. "Enabled" indi-
cates an active display. "Disabled" indicates otherwise.
Persistence Mode
A flag that indicates whether persistence mode is enabled for the GPU.
Value is either "Enabled" or "Disabled". When persistence mode is en-
abled the NVIDIA driver remains loaded even when no active clients,
such as X11 or nvidia-smi, exist. This minimizes the driver load la-
tency associated with running dependent apps, such as CUDA programs.
For all CUDA-capable products. Linux only.
Accounting Mode
A flag that indicates whether accounting mode is enabled for the GPU
Value is either When accounting is enabled statistics are calculated
for each compute process running on the GPU. Statistics can be queried
during the lifetime or after termination of the process. The execution
time of process is reported as 0 while the process is in running state
and updated to actual execution time after the process has terminated.
See --help-query-accounted-apps for more info.
Accounting Mode Buffer Size
Returns the size of the circular buffer that holds list of processes
that can be queried for accounting stats. This is the maximum number
of processes that accounting information will be stored for before in-
formation about oldest processes will get overwritten by information
about new processes.
Driver Model
On Windows, the TCC and WDDM driver models are supported. The driver
model can be changed with the (-dm) or (-fdm) flags. The TCC driver
model is optimized for compute applications. I.E. kernel launch times
will be quicker with TCC. The WDDM driver model is designed for graph-
ics applications and is not recommended for compute applications.
Linux does not support multiple driver models, and will always have the
value of "N/A".
Current The driver model currently in use. Always "N/A" on
Linux.
Pending The driver model that will be used on the next reboot.
Always "N/A" on Linux.
Serial Number
This number matches the serial number physically printed on each board.
It is a globally unique immutable alphanumeric value.
GPU UUID
This value is the globally unique immutable alphanumeric identifier of
the GPU. It does not correspond to any physical label on the board.
Minor Number
The minor number for the device is such that the Nvidia device node
file for each GPU will have the form /dev/nvidia[minor number]. Avail-
able only on Linux platform.
VBIOS Version
The BIOS of the GPU board.
MultiGPU Board
Whether or not this GPU is part of a multiGPU board.
Board ID
The unique board ID assigned by the driver. If two or more GPUs have
the same board ID and the above "MultiGPU" field is true then the GPUs
are on the same board.
Inforom Version
Version numbers for each object in the GPU board's inforom storage.
The inforom is a small, persistent store of configuration and state
data for the GPU. All inforom version fields are numerical. It can be
useful to know these version numbers because some GPU features are only
available with inforoms of a certain version or higher.
If any of the fields below return Unknown Error additional Inforom ver-
ification check is performed and appropriate warning message is dis-
played.
Image Version Global version of the infoROM image. Image version just
like VBIOS version uniquely describes the exact version
of the infoROM flashed on the board in contrast to in-
foROM object version which is only an indicator of sup-
ported features.
OEM Object Version for the OEM configuration data.
ECC Object Version for the ECC recording data.
Power Object Version for the power management data.
Inforom BBX Object Flush
Information about flushing of the blackbox data to the inforom storage.
Latest Timestamp
The timestamp of the latest flush of the BBX Object dur-
ing the current run.
Latest Duration
The duration of the latest flush of the BBX Object dur-
ing the current run.
GPU Operation Mode
GOM allows to reduce power usage and optimize GPU throughput by dis-
abling GPU features.
Each GOM is designed to meet specific user needs.
In "All On" mode everything is enabled and running at full speed.
The "Compute" mode is designed for running only compute tasks. Graphics
operations are not allowed.
The "Low Double Precision" mode is designed for running graphics appli-
cations that don't require high bandwidth double precision.
GOM can be changed with the (--gom) flag.
Supported on GK110 M-class and X-class Tesla products from the Kepler
family. Not supported on Quadro and Tesla C-class products. Low Dou-
ble Precision and All On modes are the only modes available for sup-
ported GeForce Titan products.
Current The GOM currently in use.
Pending The GOM that will be used on the next reboot.
PCI
Basic PCI info for the device. Some of this information may change
whenever cards are added/removed/moved in a system. For all products.
Bus PCI bus number, in hex
Device PCI device number, in hex
Domain PCI domain number, in hex
Device Id PCI vendor device id, in hex
Sub System Id PCI Sub System id, in hex
Bus Id PCI bus id as "domain:bus:device.function", in hex
GPU Link information
The PCIe link generation and bus width
Current The current link generation and width. These may be re-
duced when the GPU is not in use.
Maximum The maximum link generation and width possible with this
GPU and system configuration. For example, if the GPU
supports a higher PCIe generation than the system sup-
ports then this reports the system PCIe generation.
Bridge Chip
Information related to Bridge Chip on the device. The bridge chip
firmware is only present on certain boards and may display "N/A" for
some newer multiGPUs boards.
Type The type of bridge chip. Reported as N/A if doesn't ex-
ist.
Firmware Version
The firmware version of the bridge chip. Reported as N/A
if doesn't exist.
Replays Since Reset
The number of PCIe replays since reset.
Replay Number Rollovers
The number of PCIe replay number rollovers since reset. A replay number
rollover occurs after 4 consecutive replays and results in retraining
the link.
Tx Throughput
The GPU-centric transmission throughput across the PCIe bus in MB/s
over the past 20ms. Only supported on Maxwell architectures and newer.
Rx Throughput
The GPU-centric receive throughput across the PCIe bus in MB/s over the
past 20ms. Only supported on Maxwell architectures and newer.
Atomic Caps
The PCIe atomic capablities of outbound/inbound operation between GPU
memory and Host memory (no peer to peer).
Fan Speed
The fan speed value is the percent of the product's maximum noise tol-
erance fan speed that the device's fan is currently intended to run at.
This value may exceed 100% in certain cases. Note: The reported speed
is the intended fan speed. If the fan is physically blocked and unable
to spin, this output will not match the actual fan speed. Many parts
do not report fan speeds because they rely on cooling via fans in the
surrounding enclosure. For all discrete products with dedicated fans.
Performance State
The current performance state for the GPU. States range from P0 (maxi-
mum performance) to P12 (minimum performance).
Clocks Event Reasons
Retrieves information about factors that are reducing the frequency of
clocks.
If all event reasons are returned as "Not Active" it means that clocks
are running as high as possible.
Idle Nothing is running on the GPU and the clocks are drop-
ping to Idle state. This limiter may be removed in a
later release.
Application Clocks Setting
GPU clocks are limited by applications clocks setting.
E.g. can be changed using nvidia-smi --applica-
tions-clocks=
SW Power Cap SW Power Scaling algorithm is reducing the clocks below
requested clocks because the GPU is consuming too much
power. E.g. SW power cap limit can be changed with
nvidia-smi --power-limit=
HW Slowdown HW Slowdown (reducing the core clocks by a factor of 2
or more) is engaged. HW Thermal Slowdown and HW Power
Brake will be displayed on Pascal+.
This is an indicator of:
* Temperature being too high (HW Thermal Slowdown)
* External Power Brake Assertion is triggered (e.g. by
the system power supply) (HW Power Brake Slowdown)
* Power draw is too high and Fast Trigger protection is
reducing the clocks
SW Thermal Slowdown
SW Thermal capping algorithm is reducing clocks below
requested clocks because GPU temperature is higher than
Max Operating Temp
Sparse Operation Mode
A flag that indicates whether sparse operation mode is enabled for the
GPU. Value is either "Enabled" or "Disabled". Reported as "N/A" if not
supported.
FB Memory Usage
On-board frame buffer memory information. Reported total memory is af-
fected by ECC state. If ECC is enabled the total available memory is
decreased by several percent, due to the requisite parity bits. The
driver may also reserve a small amount of memory for internal use, even
without active work on the GPU. On systems where GPUs are NUMA nodes,
the accuracy of FB memory utilization provided by nvidia-smi depends on
the memory accounting of the operating system. This is because FB mem-
ory is managed by the operating system instead of the NVIDIA GPU
driver. Typically, pages allocated from FB memory are not released
even after the process terminates to enhance performance. In scenarios
where the operating system is under memory pressure, it may resort to
utilizing FB memory. Such actions can result in discrepancies in the
accuracy of memory reporting. For all products.
Total Total size of FB memory.
Reserved Reserved size of FB memory.
Used Used size of FB memory.
Free Available size of FB memory.
BAR1 Memory Usage
BAR1 is used to map the FB (device memory) so that it can be directly
accessed by the CPU or by 3rd party devices (peer-to-peer on the PCIe
bus).
Total Total size of BAR1 memory.
Used Used size of BAR1 memory.
Free Available size of BAR1 memory.
Compute Mode
The compute mode flag indicates whether individual or multiple compute
applications may run on the GPU.
"Default" means multiple contexts are allowed per device.
"Exclusive Process" means only one context is allowed per device, us-
able from multiple threads at a time.
"Prohibited" means no contexts are allowed per device (no compute
apps).
"EXCLUSIVE_PROCESS" was added in CUDA 4.0. Prior CUDA releases sup-
ported only one exclusive mode, which is equivalent to "EXCLU-
SIVE_THREAD" in CUDA 4.0 and beyond.
For all CUDA-capable products.
Utilization
Utilization rates report how busy each GPU is over time, and can be
used to determine how much an application is using the GPUs in the sys-
tem. Note: On MIG-enabled GPUs, querying the utilization of encoder,
decoder, jpeg, ofa, gpu, and memory is not currently supported.
Note: During driver initialization when ECC is enabled one can see high
GPU and Memory Utilization readings. This is caused by ECC Memory
Scrubbing mechanism that is performed during driver initialization.
GPU Percent of time over the past sample period during which
one or more kernels was executing on the GPU. The sam-
ple period may be between 1 second and 1/6 second de-
pending on the product.
Memory Percent of time over the past sample period during which
global (device) memory was being read or written. The
sample period may be between 1 second and 1/6 second de-
pending on the product.
Encoder Percent of time over the past sample period during which
the GPU's video encoder was being used. The sampling
rate is variable and can be obtained directly via the
nvmlDeviceGetEncoderUtilization() API
Decoder Percent of time over the past sample period during which
the GPU's video decoder was being used. The sampling
rate is variable and can be obtained directly via the
nvmlDeviceGetDecoderUtilization() API
JPEG Percent of time over the past sample period during which
the GPU's JPEG decoder was being used. The sampling
rate is variable and can be obtained directly via the
nvmlDeviceGetJpgUtilization() API
OFA Percent of time over the past sample period during which
the GPU's OFA (Optical Flow Accelerator) was being used.
The sampling rate is variable and can be obtained di-
rectly via the nvmlDeviceGetOfaUtilization() API
Ecc Mode
A flag that indicates whether ECC support is enabled. May be either
"Enabled" or "Disabled". Changes to ECC mode require a reboot. Re-
quires Inforom ECC object version 1.0 or higher.
Current The ECC mode that the GPU is currently operating under.
Pending The ECC mode that the GPU will operate under after the
next reboot.
ECC Errors
NVIDIA GPUs can provide error counts for various types of ECC errors.
Some ECC errors are either single or double bit, where single bit er-
rors are corrected and double bit errors are uncorrectable. Texture
memory errors may be correctable via resend or uncorrectable if the re-
send fails. These errors are available across two timescales (volatile
and aggregate). Single bit ECC errors are automatically corrected by
the HW and do not result in data corruption. Double bit errors are de-
tected but not corrected. Please see the ECC documents on the web for
information on compute application behavior when double bit errors oc-
cur. Volatile error counters track the number of errors detected since
the last driver load. Aggregate error counts persist indefinitely and
thus act as a lifetime counter.
A note about volatile counts: On Windows this is once per boot. On
Linux this can be more frequent. On Linux the driver unloads when no
active clients exist. Hence, if persistence mode is enabled or there
is always a driver client active (e.g. X11), then Linux also sees per-
boot behavior. If not, volatile counts are reset each time a compute
app is run.
Tesla and Quadro products from the Fermi and Kepler family can display
total ECC error counts, as well as a breakdown of errors based on loca-
tion on the chip. The locations are described below. Location-based
data for aggregate error counts requires Inforom ECC object version
2.0. All other ECC counts require ECC object version 1.0.
Device Memory Errors detected in global device memory.
Register File Errors detected in register file memory.
L1 Cache Errors detected in the L1 cache.
L2 Cache Errors detected in the L2 cache.
Texture Memory Parity errors detected in texture memory.
Total Total errors detected across entire chip. Sum of Device
Memory, Register File, L1 Cache, L2 Cache and Texture
Memory.
Page Retirement
NVIDIA GPUs can retire pages of GPU device memory when they become un-
reliable. This can happen when multiple single bit ECC errors occur
for the same page, or on a double bit ECC error. When a page is re-
tired, the NVIDIA driver will hide it such that no driver, or applica-
tion memory allocations can access it.
Double Bit ECC The number of GPU device memory pages that have been re-
tired due to a double bit ECC error.
Single Bit ECC The number of GPU device memory pages that have been re-
tired due to multiple single bit ECC errors.
Pending Checks if any GPU device memory pages are pending blacklist on
the next reboot. Pages that are retired but not yet blacklisted can
still be allocated, and may cause further reliability issues.
Row Remapper
NVIDIA GPUs can remap rows of GPU device memory when they become unre-
liable. This can happen when a single uncorrectable ECC error or mul-
tiple correctable ECC errors occur on the same row. When a row is
remapped, the NVIDIA driver will remap the faulty row to a reserved
row. All future accesses to the row will access the reserved row in-
stead of the faulty row.
Correctable Error The number of rows that have been remapped due to
correctable ECC errors.
Uncorrectable Error The number of rows that have been remapped due to
uncorrectable ECC errors.
Pending Indicates whether or not a row is pending remapping. The GPU
must be reset for the remapping to go into effect.
Remapping Failure Occurred Indicates whether or not a row remapping has
failed in the past.
Bank Remap Availability Histogram Each memory bank has a fixed number
of reserved rows that can be used for row remapping. The histogram
will classify the remap availability of each bank into Maximum, High,
Partial, Low and None. Maximum availability means that all reserved
rows are available for remapping while None means that no reserved rows
are available.
Temperature
Readings from temperature sensors on the board. All readings are in
degrees C. Not all products support all reading types. In particular,
products in module form factors that rely on case fans or passive cool-
ing do not usually provide temperature readings. See below for re-
strictions.
T.Limit: The T.Limit sensor measures the current margin in degree Cel-
sius to the maximum operating temperature. As such it is not an abso-
lute temperature reading rather a relative measurement.
Not all products support T.Limit sensor readings.
When supported, nvidia-smi reports the current T.Limit temperature as a
signed value that counts down. A T.Limit temperature of 0 C or lower
indicates that the GPU may optimize its clock based on thermal condi-
tions. Further, when the T.Limit sensor is supported, available temper-
ature thresholds are also reported relative to T.Limit (see below) in-
stead of absolute measurements.
GPU Core GPU temperature. For all discrete and S-class
products.
T.Limit Temp Current margin in degrees Celsius from the maximum GPU
operating temperature.
Shutdown Temp The temperature at which a GPU will shutdown.
Shutdown T.Limit Temp
The T.Limit temperature below which a GPU may shutdown.
Since shutdown can only triggered by the maximum GPU
temperature it is possible for the current T.Limit to be
more negative than this threshold.
Slowdown Temp The temperature at which a GPU HW will begin optimizing
clocks due to thermal conditions, in order to cool.
Slowdown T.Limit Temp
The T.Limit temperature below which a GPU HW may opti-
mize its clocks for thermal conditions. Since this clock
adjustment can only triggered by the maximum GPU temper-
ature it is possible for the current T.Limit to be more
negative than this threshold.
Max Operating Temp
The temperature at which GPU SW will optimize its clock
for thermal conditions.
Max Operating T.Limit Temp
The T.Limit temperature below which GPU SW will optimize
its clock for thermal conditions.
Power Readings
Power readings help to shed light on the current power usage of the
GPU, and the factors that affect that usage. When power management is
enabled the GPU limits power draw under load to fit within a predefined
power envelope by manipulating the current performance state. See be-
low for limits of availability. Please note that power readings are
not applicable for Pascal and higher GPUs with BA sensor boards.
Power State Power State is deprecated and has been renamed to Per-
formance State in 2.285. To maintain XML compatibility,
in XML format Performance State is listed in both
places.
Power Management
A flag that indicates whether power management is en-
abled. Either "Supported" or "N/A". Requires Inforom
PWR object version 3.0 or higher or Kepler device.
Power Draw The last measured power draw for the entire board, in
watts. Only available if power management is supported.
On Ampere (except GA100) or newer devices, returns aver-
age power draw over 1 sec. On GA100 and older devices,
returns instantaneous power draw. Please note that for
boards without INA sensors, this refers to the power
draw for the GPU and not for the entire board.
Power Limit The software power limit, in watts. Set by software
such as nvidia-smi. Only available if power management
is supported. Requires Inforom PWR object version 3.0
or higher or Kepler device. On Kepler devices Power
Limit can be adjusted using -pl,--power-limit= switches.
Enforced Power Limit
The power management algorithm's power ceiling, in
watts. Total board power draw is manipulated by the
power management algorithm such that it stays under this
value. This limit is the minimum of various limits such
as the software limit listed above. Only available if
power management is supported. Requires a Kepler de-
vice. Please note that for boards without INA sensors,
it is the GPU power draw that is being manipulated.
Default Power Limit
The default power management algorithm's power ceiling,
in watts. Power Limit will be set back to Default Power
Limit after driver unload. Only on supported devices
from Kepler family.
Min Power Limit
The minimum value in watts that power limit can be set
to. Only on supported devices from Kepler family.
Max Power Limit
The maximum value in watts that power limit can be set
to. Only on supported devices from Kepler family.
Clocks
Current frequency at which parts of the GPU are running. All readings
are in MHz.
Graphics Current frequency of graphics (shader) clock.
SM Current frequency of SM (Streaming Multiprocessor)
clock.
Memory Current frequency of memory clock.
Video Current frequency of video (encoder + decoder) clocks.
Applications Clocks
User specified frequency at which applications will be running at. Can
be changed with [-ac | --applications-clocks] switches.
Graphics User specified frequency of graphics (shader) clock.
Memory User specified frequency of memory clock.
Default Applications Clocks
Default frequency at which applications will be running at. Applica-
tion clocks can be changed with [-ac | --applications-clocks] switches.
Application clocks can be set to default using [-rac | --reset-applica-
tions-clocks] switches.
Graphics Default frequency of applications graphics (shader)
clock.
Memory Default frequency of applications memory clock.
Max Clocks
Maximum frequency at which parts of the GPU are design to run. All
readings are in MHz.
On GPUs from Fermi family current P0 clocks (reported in Clocks sec-
tion) can differ from max clocks by few MHz.
Graphics Maximum frequency of graphics (shader) clock.
SM Maximum frequency of SM (Streaming Multiprocessor)
clock.
Memory Maximum frequency of memory clock.
Video Maximum frequency of video (encoder + decoder) clock.
Clock Policy
User-specified settings for automated clocking changes such as auto
boost.
Auto Boost Indicates whether auto boost mode is currently enabled
for this GPU (On) or disabled for this GPU (Off). Shows
(N/A) if boost is not supported. Auto boost allows dy-
namic GPU clocking based on power, thermal and utiliza-
tion. When auto boost is disabled the GPU will attempt
to maintain clocks at precisely the Current Application
Clocks settings (whenever a CUDA context is active).
With auto boost enabled the GPU will still attempt to
maintain this floor, but will opportunistically boost to
higher clocks when power, thermal and utilization head-
room allow. This setting persists for the life of the
CUDA context for which it was requested. Apps can re-
quest a particular mode either via an NVML call (see
NVML SDK) or by setting the CUDA environment variable
CUDA_AUTO_BOOST.
Auto Boost Default
Indicates the default setting for auto boost mode, ei-
ther enabled (On) or disabled (Off). Shows (N/A) if
boost is not supported. Apps will run in the default
mode if they have not explicitly requested a particular
mode. Note: Auto Boost settings can only be modified if
"Persistence Mode" is enabled, which is NOT by default.
Supported clocks
List of possible memory and graphics clocks combinations that the GPU
can operate on (not taking into account HW brake reduced clocks).
These are the only clock combinations that can be passed to --applica-
tions-clocks flag. Supported Clocks are listed only when -q -d SUP-
PORTED_CLOCKS switches are provided or in XML format.
Voltage
Current voltage reported by the GPU. All units are in mV.
Graphics Current voltage of the graphics unit.
Processes
List of processes having Compute or Graphics Context on the device.
Compute processes are reported on all the fully supported products. Re-
porting for Graphics processes is limited to the supported products
starting with Kepler architecture.
Each Entry is of format "<GPU Index> <PID> <Type> <Process Name> <GPU
Memory Usage>"
GPU Index Represents NVML Index of the device.
PID Represents Process ID corresponding to the active Com-
pute or Graphics context.
Type Displayed as "C" for Compute Process, "G" for Graphics
Process, and "C+G" for the process having both Compute
and Graphics contexts.
Process Name Represents process name for the Compute or Graphics
process.
GPU Memory Usage
Amount of memory used on the device by the context. Not
available on Windows when running in WDDM mode because
Windows KMD manages all the memory not NVIDIA driver.
Stats (EXPERIMENTAL)
List GPU statistics such as power samples, utilization samples, xid
events, clock change events and violation counters.
Supported on Tesla, GRID and Quadro based products under Linux.
Limited to Kepler or newer GPUs.
Displays statistics in CSV format as follows:
<GPU device index>, <metric name>, <CPU Timestamp in us>, <value for
metric>
The metrics to display with their units are as follows:
Power samples in Watts.
GPU Temperature samples in degrees Celsius.
GPU, Memory, Encoder, Decoder, JPEG and OFA utilization samples in Per-
centage.
Xid error events reported with Xid error code. The error code is 999
for unknown xid error.
Processor and Memory clock changes in MHz.
Violation due to Power capping with violation time in ns. (Tesla Only)
Violation due to Thermal capping with violation boolean flag (1/0).
(Tesla Only)
Notes:
Any statistic preceded by "#" is a comment.
Non supported device is displayed as "#<device Index>, Device not sup-
ported".
Non supported metric is displayed as "<device index>, <metric name>,
N/A, N/A".
Violation due to Thermal/Power supported only for Tesla based products.
Thermal Violations are limited to Tesla K20 and higher.
Device Monitoring
The "nvidia-smi dmon" command-line is used to monitor one or more GPUs
(up to 4 devices) plugged into the system. This tool allows the user to
see one line of monitoring data per monitoring cycle. The output is in
concise format and easy to interpret in interactive mode. The output
data per line is limited by the terminal size. It is supported on
Tesla, GRID, Quadro and limited GeForce products for Kepler or newer
GPUs under bare metal 64 bits Linux. By default, the monitoring data
includes Power Usage, Temperature, SM clocks, Memory clocks and Uti-
lization values for SM, Memory, Encoder, Decoder, JPEG and OFA. It can
also be configured to report other metrics such as frame buffer memory
usage, bar1 memory usage, power/thermal violations and aggregate sin-
gle/double bit ecc errors. If any of the metric is not supported on the
device or any other error in fetching the metric is reported as "-" in
the output data. The user can also configure monitoring frequency and
the number of monitoring iterations for each run. There is also an op-
tion to include date and time at each line. All the supported options
are exclusive and can be used together in any order. Note: On MIG-en-
abled GPUs, querying the utilization of encoder, decoder, jpeg, ofa,
gpu, and memory is not currently supported.
Usage:
1) Default with no arguments
nvidia-smi dmon
Monitors default metrics for up to 4 supported devices under natural
enumeration (starting with GPU index 0) at a frequency of 1 sec. Runs
until terminated with ^C.
2) Select one or more devices
nvidia-smi dmon -i <device1,device2, .. , deviceN>
Reports default metrics for the devices selected by comma separated de-
vice list. The tool picks up to 4 supported devices from the list under
natural enumeration (starting with GPU index 0).
3) Select metrics to be displayed
nvidia-smi dmon -s <metric_group>
<metric_group> can be one or more from the following:
p - Power Usage (in Watts) and Gpu/Memory Temperature (in C) if
supported
u - Utilization (SM, Memory, Encoder, Decoder, JPEG and OFA Uti-
lization in %)
c - Proc and Mem Clocks (in MHz)
v - Power Violations (in %) and Thermal Violations (as a boolean
flag)
m - Frame Buffer, Bar1 and Confidential Compute protected memory
usage (in MB)
e - ECC (Number of aggregated single bit, double bit ecc errors)
and PCIe Replay errors
t - PCIe Rx and Tx Throughput in MB/s (Maxwell and above)
4) Configure monitoring iterations
nvidia-smi dmon -c <number of samples>
Displays data for specified number of samples and exit.
5) Configure monitoring frequency
nvidia-smi dmon -d <time in secs>
Collects and displays data at every specified monitoring interval until
terminated with ^C.
6) Display date
nvidia-smi dmon -o D
Prepends monitoring data with date in YYYYMMDD format.
7) Display time
nvidia-smi dmon -o T
Prepends monitoring data with time in HH:MM:SS format.
8) Help Information
nvidia-smi dmon -h
Displays help information for using the command line.
Daemon (EXPERIMENTAL)
The "nvidia-smi daemon" starts a background process to monitor one or
more GPUs plugged in to the system. It monitors the requested GPUs ev-
ery monitoring cycle and logs the file in compressed format at the user
provided path or the default location at /var/log/nvstats/. The log
file is created with system's date appended to it and of the format
nvstats-YYYYMMDD. The flush operation to the log file is done every al-
ternate monitoring cycle. Daemon also logs it's own PID at
/var/run/nvsmi.pid. By default, the monitoring data to persist includes
Power Usage, Temperature, SM clocks, Memory clocks and Utilization val-
ues for SM, Memory, Encoder, Decoder, JPEG and OFA. The daemon tools
can also be configured to record other metrics such as frame buffer
memory usage, bar1 memory usage, power/thermal violations and aggregate
single/double bit ecc errors.The default monitoring cycle is set to 10
secs and can be configured via command-line. It is supported on Tesla,
GRID, Quadro and GeForce products for Kepler or newer GPUs under bare
metal 64 bits Linux. The daemon requires root privileges to run, and
only supports running a single instance on the system. All of the sup-
ported options are exclusive and can be used together in any order.
Note: On MIG-enabled GPUs, querying the utilization of encoder, de-
coder, jpeg, ofa, gpu, and memory is not currently supported. Usage:
1) Default with no arguments
nvidia-smi daemon
Runs in the background to monitor default metrics for up to 4 supported
devices under natural enumeration (starting with GPU index 0) at a fre-
quency of 10 sec. The date stamped log file is created at /var/log/nvs-
tats/.
2) Select one or more devices
nvidia-smi daemon -i <device1,device2, .. , deviceN>
Runs in the background to monitor default metrics for the devices se-
lected by comma separated device list. The tool picks up to 4 supported
devices from the list under natural enumeration (starting with GPU in-
dex 0).
3) Select metrics to be monitored
nvidia-smi daemon -s <metric_group>
<metric_group> can be one or more from the following:
p - Power Usage (in Watts) and Gpu/Memory Temperature (in C) if
supported
u - Utilization (SM, Memory, Encoder, Decoder, JPEG and OFA Uti-
lization in %)
c - Proc and Mem Clocks (in MHz)
v - Power Violations (in %) and Thermal Violations (as a boolean
flag)
m - Frame Buffer, Bar1 and Confidential Compute protected memory
usage (in MB)
e - ECC (Number of aggregated single bit, double bit ecc errors)
and PCIe Replay errors
t - PCIe Rx and Tx Throughput in MB/s (Maxwell and above)
4) Configure monitoring frequency
nvidia-smi daemon -d <time in secs>
Collects data at every specified monitoring interval until terminated.
5) Configure log directory
nvidia-smi daemon -p <path of directory>
The log files are created at the specified directory.
6) Configure log file name
nvidia-smi daemon -j <string to append log file name>
The command-line is used to append the log file name with the user pro-
vided string.
7) Terminate the daemon
nvidia-smi daemon -t
This command-line uses the stored PID (at /var/run/nvsmi.pid) to termi-
nate the daemon. It makes the best effort to stop the daemon and offers
no guarantees for it's termination. In case the daemon is not termi-
nated, then the user can manually terminate by sending kill signal to
the daemon. Performing a GPU reset operation (via nvidia-smi) requires
all GPU processes to be exited, including the daemon. Users who have
the daemon open will see an error to the effect that the GPU is busy.
8) Help Information
nvidia-smi daemon -h
Displays help information for using the command line.
Replay Mode (EXPERIMENTAL)
The "nvidia-smi replay" command-line is used to extract/replay all or
parts of log file generated by the daemon. By default, the tool tries
to pull the metrics such as Power Usage, Temperature, SM clocks, Memory
clocks and Utilization values for SM, Memory, Encoder, Decoder, JPEG
and OFA. The replay tool can also fetch other metrics such as frame
buffer memory usage, bar1 memory usage, power/thermal violations and
aggregate single/double bit ecc errors. There is an option to select a
set of metrics to replay, If any of the requested metric is not main-
tained or logged as not-supported then it's shown as "-" in the output.
The format of data produced by this mode is such that the user is run-
ning the device monitoring utility interactively. The command line re-
quires mandatory option "-f" to specify complete path of the log file-
name, all the other supported options are exclusive and can be used to-
gether in any order. Note: On MIG-enabled GPUs, querying the utiliza-
tion of encoder, decoder, jpeg, ofa, gpu, and memory is not currently
supported. Usage:
1) Specify log file to be replayed
nvidia-smi replay -f <log file name>
Fetches monitoring data from the compressed log file and allows the
user to see one line of monitoring data (default metrics with time-
stamp) for each monitoring iteration stored in the log file. A new line
of monitoring data is replayed every other second irrespective of the
actual monitoring frequency maintained at the time of collection. It is
displayed till the end of file or until terminated by ^C.
2) Filter metrics to be replayed
nvidia-smi replay -f <path to log file> -s <metric_group>
<metric_group> can be one or more from the following:
p - Power Usage (in Watts) and Gpu/Memory Temperature (in C) if
supported
u - Utilization (SM, Memory, Encoder, Decoder, JPEG and OFA Uti-
lization in %)
c - Proc and Mem Clocks (in MHz)
v - Power Violations (in %) and Thermal Violations (as a boolean
flag)
m - Frame Buffer, Bar1 and Confidential Compute protected memory
usage (in MB)
e - ECC (Number of aggregated single bit, double bit ecc errors)
and PCIe Replay errors
t - PCIe Rx and Tx Throughput in MB/s (Maxwell and above)
3) Limit replay to one or more devices
nvidia-smi replay -f <log file> -i <device1,device2, .. , deviceN>
Limits reporting of the metrics to the set of devices selected by comma
separated device list. The tool skips any of the devices not maintained
in the log file.
4) Restrict the time frame between which data is reported
nvidia-smi replay -f <log file> -b <start time in HH:MM:SS format> -e
<end time in HH:MM:SS format>
This option allows the data to be limited between the specified time
range. Specifying time as 0 with -b or -e option implies start or end
file respectively.
5) Redirect replay information to a log file
nvidia-smi replay -f <log file> -r <output file name>
This option takes log file as an input and extracts the information re-
lated to default metrics in the specified output file.
6) Help Information
nvidia-smi replay -h
Displays help information for using the command line.
Process Monitoring
The "nvidia-smi pmon" command-line is used to monitor compute and
graphics processes running on one or more GPUs (up to 4 devices)
plugged into the system. This tool allows the user to see the statis-
tics for all the running processes on each device at every monitoring
cycle. The output is in concise format and easy to interpret in inter-
active mode. The output data per line is limited by the terminal size.
It is supported on Tesla, GRID, Quadro and limited GeForce products for
Kepler or newer GPUs under bare metal 64 bits Linux. By default, the
monitoring data for each process includes the pid, command name and av-
erage utilization values for SM, Memory, Encoder and Decoder since the
last monitoring cycle. It can also be configured to report frame buffer
memory usage for each process. If there is no process running for the
device, then all the metrics are reported as "-" for the device. If any
of the metric is not supported on the device or any other error in
fetching the metric is also reported as "-" in the output data. The
user can also configure monitoring frequency and the number of monitor-
ing iterations for each run. There is also an option to include date
and time at each line. All the supported options are exclusive and can
be used together in any order. Note: On MIG-enabled GPUs, querying the
utilization of encoder, decoder, jpeg, ofa, gpu, and memory is not cur-
rently supported.
Usage:
1) Default with no arguments
nvidia-smi pmon
Monitors all the processes running on each device for up to 4 supported
devices under natural enumeration (starting with GPU index 0) at a fre-
quency of 1 sec. Runs until terminated with ^C.
2) Select one or more devices
nvidia-smi pmon -i <device1,device2, .. , deviceN>
Reports statistics for all the processes running on the devices se-
lected by comma separated device list. The tool picks up to 4 supported
devices from the list under natural enumeration (starting with GPU in-
dex 0).
3) Select metrics to be displayed
nvidia-smi pmon -s <metric_group>
<metric_group> can be one or more from the following:
u - Utilization (SM, Memory, Encoder and Decoder Utilization for
the process in %). Reports average utilization since last monitoring
cycle.
m - Frame Buffer and Confidential Compute protected memory usage
(in MB). Reports instantaneous value for memory usage.
4) Configure monitoring iterations
nvidia-smi pmon -c <number of samples>
Displays data for specified number of samples and exit.
5) Configure monitoring frequency
nvidia-smi pmon -d <time in secs>
Collects and displays data at every specified monitoring interval until
terminated with ^C. The monitoring frequency must be between 1 to 10
secs.
6) Display date
nvidia-smi pmon -o D
Prepends monitoring data with date in YYYYMMDD format.
7) Display time
nvidia-smi pmon -o T
Prepends monitoring data with time in HH:MM:SS format.
8) Help Information
nvidia-smi pmon -h
Displays help information for using the command line.
Topology (EXPERIMENTAL)
List topology information about the system's GPUs, how they connect to
each other as well as qualified NICs capable of RDMA.
Displays a matrix of available GPUs with the following legend:
Legend:
X = Self
SYS = Connection traversing PCIe as well as the SMP
interconnect between NUMA nodes (e.g., QPI/UPI)
NODE = Connection traversing PCIe as well as the in-
terconnect between PCIe Host Bridges within a NUMA node
PHB = Connection traversing PCIe as well as a PCIe
Host Bridge (typically the CPU)
PXB = Connection traversing multiple PCIe switches
(without traversing the PCIe Host Bridge)
PIX = Connection traversing a single PCIe switch
NV# = Connection traversing a bonded set of # NVLinks
Note: This command may also display bonded NICs which may not be RDMA
capable.
vGPU Management
The "nvidia-smi vgpu" command reports on GRID vGPUs executing on sup-
ported GPUs and hypervisors (refer to driver release notes for sup-
ported platforms). Summary reporting provides basic information about
vGPUs currently executing on the system. Additional options provide de-
tailed reporting of vGPU properties, per-vGPU reporting of SM, Memory,
Encoder, and Decoder utilization, and per-GPU reporting of supported
and creatable vGPUs. Periodic reports can be automatically generated by
specifying a configurable loop frequency to any command. Note: On MIG-
enabled GPUs, querying the utilization of encoder, decoder, jpeg, ofa,
gpu, and memory is not currently supported.
Usage:
1) Help Information
nvidia-smi vgpu -h
Displays help information for using the command line.
2) Default with no arguments
nvidia-smi vgpu
Reports summary of all the vGPUs currently active on each device.
3) Display detailed info on currently active vGPUs
nvidia-smi vgpu -q
Collects and displays information on currently active vGPUs on each de-
vice, including driver version, utilization, and other information.
4) Select one or more devices
nvidia-smi vgpu -i <device1,device2, .. , deviceN>
Reports summary for all the vGPUs currently active on the devices se-
lected by comma-separated device list.
5) Display supported vGPUs
nvidia-smi vgpu -s
Displays vGPU types supported on each device. Use the -v / --verbose
option to show detailed info on each vGPU type.
6) Display creatable vGPUs
nvidia-smi vgpu -c
Displays vGPU types creatable on each device. This varies dynamically,
depending on the vGPUs already active on the device. Use the -v /
--verbose option to show detailed info on each vGPU type.
7) Report utilization for currently active vGPUs.
nvidia-smi vgpu -u
Reports average utilization (SM, Memory, Encoder and Decoder) for each
active vGPU since last monitoring cycle. The default cycle time is 1
second, and the command runs until terminated with ^C. If a device has
no active vGPUs, its metrics are reported as "-".
8) Configure loop frequency
nvidia-smi vgpu [-s -c -q -u] -l <time in secs>
Collects and displays data at a specified loop interval until termi-
nated with ^C. The loop frequency must be between 1 and 10 secs. When
no time is specified, the loop frequency defaults to 5 secs.
9) Display GPU engine usage
nvidia-smi vgpu -p
Display GPU engine usage of currently active processes running in the
vGPU VMs.
10) Display migration capabitlities.
nvidia-smi vgpu -m
Display pGPU's migration/suspend/resume capability.
11) Display the vGPU Software scheduler state.
nvidia-smi vgpu -ss
Display the information about vGPU Software scheduler state.
12) Display the vGPU Software scheduler capabilities.
nvidia-smi vgpu -sc
Display the list of supported vGPU scheduler policies returned along
with the other capabilities values, if the engine is Graphics type. For
other engine types, it is BEST EFFORT policy and other capabilities
will be zero. If ARR is supported and enabled, scheduling frequency and
averaging factor are applicable else timeSlice is applicable.
13) Display the vGPU Software scheduler logs.
nvidia-smi vgpu -sl
Display the vGPU Software scheduler runlist logs.
nvidia-smi --query-vgpu-scheduler-logs=[input parameters]
Display the vGPU Software scheduler runlist logs in CSV format.
14) Set the vGPU Software scheduler state.
nvidia-smi vgpu --set-vgpu-scheduler-state [options]
Set the vGPU Software scheduler policy and states.
15) Display Nvidia Encoder session info.
nvidia-smi vgpu -es
Display the information about encoder sessions for currently running
vGPUs.
16) Display accounting statistics.
nvidia-smi vgpu --query-accounted-apps=[input parameters]
Display accounting stats for compute/graphics processes.
To find list of properties which can be queried, run - 'nvidia-smi
--help-query-accounted-apps'.
17) Display Nvidia Frame Buffer Capture session info.
nvidia-smi vgpu -fs
Display the information about FBC sessions for currently running vGPUs.
Note : Horizontal resolution, vertical resolution, average FPS and av-
erage latency data for a FBC session may be zero if there are no new
frames captured since the session started.
MIG Management
The privileged "nvidia-smi mig" command-line is used to manage MIG-en-
abled GPUs. It provides options to create, list and destroy GPU in-
stances and compute instances.
Usage:
1) Display help menu
nvidia-smi mig -h
Displays help menu for using the command-line.
2) Select one or more GPUs
nvidia-smi mig -i <GPU IDs>
nvidia-smi mig --id <GPU IDs>
Selects one or more GPUs using the given comma-separated GPU indexes,
PCI bus IDs or UUIDs. If not used, the given command-line option ap-
plies to all of the supported GPUs.
3) Select one or more GPU instances
nvidia-smi mig -gi <GPU instance IDs>
nvidia-smi mig --gpu-instance-id <GPU instance IDs>
Selects one or more GPU instances using the given comma-separated GPU
instance IDs. If not used, the given command-line option applies to all
of the GPU instances.
4) Select one or more compute instances
nvidia-smi mig -ci <compute instance IDs>
nvidia-smi mig --compute-instance-id <compute instance IDs>
Selects one or more compute instances using the given comma-separated
compute instance IDs. If not used, the given command-line option ap-
plies to all of the compute instances.
5) List GPU instance profiles
nvidia-smi mig -lgip -i <GPU IDs>
nvidia-smi mig --list-gpu-instance-profiles --id <GPU IDs>
Lists GPU instance profiles, their availability and IDs. Profiles de-
scribe the supported types of GPU instances, including all of the GPU
resources they exclusively control.
6) List GPU instance possible placements
nvidia-smi mig -lgipp -i <GPU IDs>
nvidia-smi mig --list-gpu-instance-possible-placements --id <GPU IDs>
Lists GPU instance possible placements. Possible placements describe
the locations of the supported types of GPU instances within the GPU.
7) Create GPU instance
nvidia-smi mig -cgi <GPU instance specifiers> -i <GPU IDs>
nvidia-smi mig --create-gpu-instance <GPU instance specifiers> --id
<GPU IDs>
Creates GPU instances for the given GPU instance specifiers. A GPU in-
stance specifier comprises a GPU instance profile name or ID and an op-
tional placement specifier consisting of a colon and a placement start
index. The command fails if the GPU resources required to allocate the
requested GPU instances are not available, or if the placement index is
not valid for the given profile.
8) Create a GPU instance along with the default compute instance
nvidia-smi mig -cgi <GPU instance profile IDs or names> -i <GPU IDs> -C
nvidia-smi mig --create-gpu-instance <GPU instance profile IDs or
names> --id <GPU IDs> --default-compute-instance
9) List GPU instances
nvidia-smi mig -lgi -i <GPU IDs>
nvidia-smi mig --list-gpu-instances --id <GPU IDs>
Lists GPU instances and their IDs.
10) Destroy GPU instance
nvidia-smi mig -dgi -gi <GPU instance IDs> -i <GPU IDs>
nvidia-smi mig --destroy-gpu-instances --gpu-instance-id <GPU instance
IDs> --id <GPU IDs>
Destroys GPU instances. The command fails if the requested GPU instance
is in use by an application.
11) List compute instance profiles
nvidia-smi mig -lcip -gi <GPU instance IDs> -i <GPU IDs>
nvidia-smi mig --list-compute-instance-profiles --gpu-instance-id <GPU
instance IDs> --id <GPU IDs>
Lists compute instance profiles, their availability and IDs. Profiles
describe the supported types of compute instances, including all of the
GPU resources they share or exclusively control.
12) List compute instance possible placements
nvidia-smi mig -lcipp -gi <GPU instance IDs> -i <GPU IDs>
nvidia-smi mig --list-compute-instance-possible-placements --gpu-in-
stance-id <GPU instance IDs> --id <GPU IDs>
Lists compute instance possible placements. Possible placements de-
scribe the locations of the supported types of compute instances within
the GPU instance.
13) Create compute instance
nvidia-smi mig -cci <compute instance profile IDs or names> -gi <GPU
instance IDs> -i <GPU IDs>
nvidia-smi mig --create-compute-instance <compute instance profile IDs
or names> --gpu-instance-id <GPU instance IDs> --id <GPU IDs>
Creates compute instances for the given compute instance spcifiers. A
compute instance specifier comprises a compute instance profile name or
ID and an optional placement specifier consisting of a colon and a
placement start index. The command fails if the GPU resources required
to allocate the requested compute instances are not available, or if
the placement index is not valid for the given profile.
14) List compute instances
nvidia-smi mig -lci -gi <GPU instance IDs> -i <GPU IDs>
nvidia-smi mig --list-compute-instances --gpu-instance-id <GPU instance
IDs> --id <GPU IDs>
Lists compute instances and their IDs.
15) Destroy compute instance
nvidia-smi mig -dci -ci <compute instance IDs> -gi <GPU instance IDs>
-i <GPU IDs>
nvidia-smi mig --destroy-compute-instance --compute-instance-id <com-
pute instance IDs> --gpu-instance-id <GPU instance IDs> --id <GPU IDs>
Destroys compute instances. The command fails if the requested compute
instance is in use by an application.
Boost Slider
The privileged "nvidia-smi boost-slider" command-line is used to manage
boost slider on GPUs. It provides options to list and control boost
sliders.
Usage:
1) Display help menu
nvidia-smi boost-slider -h
Displays help menu for using the command-line.
2) List one or more GPUs
nvidia-smi boost-slider -i <GPU IDs>
nvidia-smi boost-slider --id <GPU IDs>
Selects one or more GPUs using the given comma-separated GPU indexes,
PCI bus IDs or UUIDs. If not used, the given command-line option ap-
plies to all of the supported GPUs.
3) List boost sliders
nvidia-smi boost-slider -l
nvidia-smi boost-slider --list
List all boost sliders for the selected devices.
4) Set video boost slider
nvidia-smi boost-slider --vboost <value>
Set the video boost slider for the selected devices.
Power Hint
The privileged "nvidia-smi power-hint" command-line is used to query
power hint on GPUs.
Usage:
1) Display help menu
nvidia-smi boost-slider -h
Displays help menu for using the command-line.
2) List one or more GPUs
nvidia-smi boost-slider -i <GPU IDs>
nvidia-smi boost-slider --id <GPU IDs>
Selects one or more GPUs using the given comma-separated GPU indexes,
PCI bus IDs or UUIDs. If not used, the given command-line option ap-
plies to all of the supported GPUs.
3) List power hint info
nvidia-smi boost-slider -l
nvidia-smi boost-slider --list-info
List all boost sliders for the selected devices.
4) Query power hint
nvidia-smi boost-slider -gc <value> -t <value> -p <profile ID>
nvidia-smi boost-slider --graphics-clock <value> --temperature <value>
--profile <profile ID>
Query power hint with graphics clock, temperature and profile id.
5) Query power hint
nvidia-smi boost-slider -gc <value> -mc <value> -t <value> -p <profile
ID>
nvidia-smi boost-slider --graphics-clock <value> --memory-clock <value>
--temperature <value> --profile <profile ID>
Query power hint with graphics clock, memory clock, temperature and
profile id.
Confidential Compute
The "nvidia-smi conf-compute" command-line is used to manage confiden-
tial compute. It provides options to set and query confidential com-
pute.
Usage:
1) Display help menu
nvidia-smi conf-compute -h
Displays help menu for using the command-line.
2) List one or more GPUs
nvidia-smi conf-compute -i <GPU IDs>
nvidia-smi conf-compute --id <GPU IDs>
Selects one or more GPUs using the given comma-separated GPU indexes,
PCI bus IDs or UUIDs. If not used, the given command-line option ap-
plies to all of the supported GPUs.
3) Query confidential compute CPU capability
nvidia-smi conf-compute -gc
nvidia-smi conf-compute --get-cpu-caps
Get confidential compute CPU capability.
4) Query confidential compute GPUs capability
nvidia-smi conf-compute -gg
nvidia-smi conf-compute --get-gpus-caps
Get confidential compute GPUs capability.
5) Query confidential compute devtools mode
nvidia-smi conf-compute -d
nvidia-smi conf-compute --get-devtools-mode
Get confidential compute DevTools mode.
6) Query confidential compute environment
nvidia-smi conf-compute -e
nvidia-smi conf-compute --get-environment
Get confidential compute environment.
7) Query confidential compute feature status
nvidia-smi conf-compute -f
nvidia-smi conf-compute --get-cc-feature
Get confidential compute CC feature status.
8) Query confidential compute GPU protected/unprotected memory sizes
nvidia-smi conf-compute -gm
nvidia-smi conf-compute --get-mem-size-info
Get confidential compute GPU protected/unprotected memory sizes.
9) Set confidential compute GPU unprotected memory size
nvidia-smi conf-compute -sm <value>
nvidia-smi conf-compute --set-unprotected-mem-size <value>
Set confidential compute GPU unprotected memory size in KiB. Requires
root.
10) Set confidential compute GPUs ready state
nvidia-smi conf-compute -srs <value>
nvidia-smi conf-compute --set-gpus-ready-state <value>
Set confidential compute GPUs ready state. The value must be 1 to set
the ready state and 0 to unset it. Requires root.
11) Query confidential compute GPUs ready state
nvidia-smi conf-compute -grs
nvidia-smi conf-compute --get-gpus-ready-state
Get confidential compute GPUs ready state.
GPU Performance Monitoring(GPM) Stream State
The "nvidia-smi gpm" command-line is used to manage GPU performance
monitoring unit. It provides options to query and set the stream state.
Usage:
1) Display help menu
nvidia-smi gpm -h
Displays help menu for using the command-line.
2) List one or more GPUs
nvidia-smi gpm -i <GPU IDs>
nvidia-smi gpm --id <GPU IDs>
Selects one or more GPUs using the given comma-separated GPU indexes,
PCI bus IDs or UUIDs. If not used, the given command-line option ap-
plies to all of the supported GPUs.
3) Query GPU performance monitoring stream state
nvidia-smi gpm -g
nvidia-smi gpm --get-stream-state
Get gpm stream state for the selected devices.
4) Set GPU performance monitoring stream state
nvidia-smi gpm -s <value>
nvidia-smi gpm --set-stream-state <value>
Set gpm stream state for the selected devices.
UNIT ATTRIBUTES
The following list describes all possible data returned by the -q -u
unit query option. Unless otherwise noted all numerical results are
base 10 and unitless.
Timestamp
The current system timestamp at the time nvidia-smi was invoked. For-
mat is "Day-of-week Month Day HH:MM:SS Year".
Driver Version
The version of the installed NVIDIA display driver. Format is "Ma-
jor-Number.Minor-Number".
HIC Info
Information about any Host Interface Cards (HIC) that are installed in
the system.
Firmware Version
The version of the firmware running on the HIC.
Attached Units
The number of attached Units in the system.
Product Name
The official product name of the unit. This is an alphanumeric value.
For all S-class products.
Product Id
The product identifier for the unit. This is an alphanumeric value of
the form "part1-part2-part3". For all S-class products.
Product Serial
The immutable globally unique identifier for the unit. This is an al-
phanumeric value. For all S-class products.
Firmware Version
The version of the firmware running on the unit. Format is "Major-Num-
ber.Minor-Number". For all S-class products.
LED State
The LED indicator is used to flag systems with potential problems. An
LED color of AMBER indicates an issue. For all S-class products.
Color The color of the LED indicator. Either "GREEN" or "AM-
BER".
Cause The reason for the current LED color. The cause may be
listed as any combination of "Unknown", "Set to AMBER by
host system", "Thermal sensor failure", "Fan failure"
and "Temperature exceeds critical limit".
Temperature
Temperature readings for important components of the Unit. All read-
ings are in degrees C. Not all readings may be available. For all S-
class products.
Intake Air temperature at the unit intake.
Exhaust Air temperature at the unit exhaust point.
Board Air temperature across the unit board.
PSU
Readings for the unit power supply. For all S-class products.
State Operating state of the PSU. The power supply state can
be any of the following: "Normal", "Abnormal", "High
voltage", "Fan failure", "Heatsink temperature", "Cur-
rent limit", "Voltage below UV alarm threshold",
"Low-voltage", "I2C remote off command", "MOD_DISABLE
input" or "Short pin transition".
Voltage PSU voltage setting, in volts.
Current PSU current draw, in amps.
Fan Info
Fan readings for the unit. A reading is provided for each fan, of
which there can be many. For all S-class products.
State The state of the fan, either "NORMAL" or "FAILED".
Speed For a healthy fan, the fan's speed in RPM.
Attached GPUs
A list of PCI bus ids that correspond to each of the GPUs attached to
the unit. The bus ids have the form "domain:bus:device.function", in
hex. For all S-class products.
NOTES
On Linux, NVIDIA device files may be modified by nvidia-smi if run as
root. Please see the relevant section of the driver README file.
The -a and -g arguments are now deprecated in favor of -q and -i, re-
spectively. However, the old arguments still work for this release.
EXAMPLES
nvidia-smi -q
Query attributes for all GPUs once, and display in plain text to std-
out.
nvidia-smi --format=csv,noheader --query-gpu=uuid,persistence_mode
Query UUID and persistence mode of all GPUs in the system.
nvidia-smi -q -d ECC,POWER -i 0 -l 10 -f out.log
Query ECC errors and power consumption for GPU 0 at a frequency of 10
seconds, indefinitely, and record to the file out.log.
"nvidia-smi -c 1 -i
GPU-b2f5f1b745e3d23d-65a3a26d-097db358-7303e0b6-149642ff3d219f8587cde3a8"
Set the compute mode to "PROHIBITED" for GPU with UUID
"GPU-b2f5f1b745e3d23d-65a3a26d-097db358-7303e0b6-149642ff3d219f8587cde3a8".
nvidia-smi -q -u -x --dtd
Query attributes for all Units once, and display in XML format with em-
bedded DTD to stdout.
nvidia-smi --dtd -u -f nvsmi_unit.dtd
Write the Unit DTD to nvsmi_unit.dtd.
nvidia-smi -q -d SUPPORTED_CLOCKS
Display supported clocks of all GPUs.
nvidia-smi -i 0 --applications-clocks 2500,745
Set applications clocks to 2500 MHz memory, and 745 MHz graphics.
nvidia-smi mig -cgi 19
Create a MIG GPU instance on profile ID 19.
nvidia-smi mig -cgi 19:2
Create a MIG GPU instance on profile ID 19 at placement start index 2.
nvidia-smi boost-slider -l
List all boost sliders for all GPUs.
nvidia-smi boost-slider --vboost 1
Set vboost to value 1 for all GPUs.
nvidia-smi power-hint -l
List clock range, temperature range and supported profiles of power
hint.
nvidia-smi boost-slider -gc 1350 -t 60 -p 0
Query power hint with graphics clock at 1350MHz, temperature at 60C and
profile ID at 0.
nvidia-smi boost-slider -gc 1350 -mc 1215 -t n5 -p 1
Query power hint with graphics clock at 1350MHz, memory clock at
1215MHz, temperature at -5C and profile ID at 1.
CHANGE LOG
=== Known Issues ===
* On systems where GPUs are NUMA nodes, the accuracy of FB memory
utilization provided by nvidia-smi depends on the memory accounting of
the operating system.
This is because FB memory is managed by the operating system in-
stead of the NVIDIA GPU driver.
Typically, pages allocated from FB memory are not released even af-
ter the process terminates to enhance performance. In scenarios where
the operating system is under memory pressure, it may resort to
utilizing FB memory. Such actions can result in discrepancies in the
accuracy of memory reporting.
* On Linux GPU Reset can't be triggered when there is pending GOM
change.
* On Linux GPU Reset may not successfully change pending ECC mode. A
full reboot may be required to enable the mode change.
* On Linux platforms that configure NVIDIA GPUs as NUMA nodes, en-
abling persistence mode or resetting GPUs may print "Warning: persis-
tence mode is disabled on device" if nvidia-persistenced is not run-
ning, or if nvidia-persistenced cannot access files in the NVIDIA
driver's procfs directory for the device (/proc/driver/nvidia/gpus/<PCI
Config Address>/). During GPU reset and driver reload, this directory
will be deleted and recreated, and outstanding references to the
deleted directory, such as mounts or shells, can prevent processes from
accessing files in the new directory.
* === Changes between nvidia-smi v535 Update and v530 ===
* Updated the SRAM error status reported in the ECC query "nvidia-smi
-q -d ECC"
* Added support to query and report the GPU JPEG and OFA (Optical
Flow Accelerator) utilizations.
* Removed deprecated "stats" command.
* Added support to set the vGPU software scheduler state.
* Renamed counter collection unit to gpu performance monitoring.
* Added support to get confidential compute CPU capability and GPUs
capability.
* Added support to set confidential compute unprotected memory and
GPU ready state.
* Added support to get confidential compute memory info and GPU ready
state.
* Added support to display confidential compute devtools mode, envi-
ronment and feature status.
* Added back clock_throttle_reasons to --query-gpu to not break back-
wards compatibility
* Added support to query the timestamp and duration of the latest
flush of the BBX object to the inforom storage.
* Added a new cmdline option "--sparse-operation-mode" to "nvidia-smi
clocks" to set the sparse operation mode
* Added the reporting of sparse operation mode to "nvidia-smi -q -d
PERFORMANCE"
* === Changes between nvidia-smi v525 Update and v530 ===
* Added support to query power.draw.average and power.draw.instant.
See nvidia-smi --help-query-gpu for details.
* Added support to get the vGPU software scheduler state.
* Added support to get the vGPU software scheduler logs.
* Added support to get the vGPU software scheduler capabilities.
* Renamed Clock Throttle Reasons to Clock Event Reasons.
* === Changes between nvidia-smi v520 Update and v525 ===
* Added support to query and set counter collection unit stream
state.
* === Changes between nvidia-smi v470 Update and v510 ===
* Add new "Reserved" memory reporting to the FB memory output
* === Changes between nvidia-smi v465 Update and v470 ===
* Added support to query power hint
* === Changes between nvidia-smi v460 Update and v465 ===
* Removed support for -acp,--application-clock-permissions option
* === Changes between nvidia-smi v450 Update and v460 ===
* Add option to specify placement when creating a MIG GPU instance.
* Added support to query and control boost slider
* === Changes between nvidia-smi v445 Update and v450 ===
* Added --lock-memory-clock and --reset-memory-clock command to lock
to closest min/max Memory clock provided and ability to reset Memory
clock
* Allow fan speeds greater than 100% to be reported
* Added topo support to display NUMA node affinity for GPU devices
* Added support to create MIG instances using profile names
* Added support to create the default compute instance while creating
a GPU instance
* Added support to query and disable MIG mode on Windows
* Removed support of GPU reset(-r) command on MIG enabled vGPU guests
* === Changes between nvidia-smi v418 Update and v445 ===
* Added support for Multi Instance GPU (MIG)
* Added support to individually reset NVLink-capable GPUs based on
the NVIDIA Ampere architecture
* === Changes between nvidia-smi v361 Update and v418 ===
* Support for Volta and Turing architectures, bug fixes, performance
improvements, and new features
* === Changes between nvidia-smi v352 Update and v361 ===
* Added nvlink support to expose the publicly available NVLINK NVML
APIs
* Added clocks sub-command with synchronized boost support
* Updated nvidia-smi stats to report GPU temperature metric
* Updated nvidia-smi dmon to support PCIe throughput
* Updated nvidia-smi daemon/replay to support PCIe throughput
* Updated nvidia-smi dmon, daemon and replay to support PCIe Replay
Errors
* Added GPU part numbers in nvidia-smi -q
* Removed support for exclusive thread compute mode
* Added Video (encoder/decode) clocks to the Clocks and Max Clocks
display of nvidia-smi -q
* Added memory temperature output to nvidia-smi dmon
* Added --lock-gpu-clock and --reset-gpu-clock command to lock to
closest min/max GPU clock provided and reset clock
* Added --cuda-clocks to override or restore default CUDA clocks
=== Changes between nvidia-smi v346 Update and v352 ===
* Added topo support to display affinities per GPU
* Added topo support to display neighboring GPUs for a given level
* Added topo support to show pathway between two given GPUs
* Added "nvidia-smi pmon" command-line for process monitoring in
scrolling format
* Added "--debug" option to produce an encrypted debug log for use in
submission of bugs back to NVIDIA
* Fixed reporting of Used/Free memory under Windows WDDM mode
* The accounting stats is updated to include both running and termi-
nated processes. The execution time of running process is reported as 0
and updated to actual value when the process is terminated.
=== Changes between nvidia-smi v340 Update and v346 ===
* Added reporting of PCIe replay counters
* Added support for reporting Graphics processes via nvidia-smi
* Added reporting of PCIe utilization
* Added dmon command-line for device monitoring in scrolling format
* Added daemon command-line to run in background and monitor devices
as a daemon process. Generates dated log files at /var/log/nvstats/
* Added replay command-line to replay/extract the stat files gener-
ated by the daemon tool
=== Changes between nvidia-smi v331 Update and v340 ===
* Added reporting of temperature threshold information.
* Added reporting of brand information (e.g. Tesla, Quadro, etc.)
* Added support for K40d and K80.
* Added reporting of max, min and avg for samples (power, utiliza-
tion, clock changes). Example commandline: nvidia-smi -q -d power,uti-
lization, clock
* Added nvidia-smi stats interface to collect statistics such as
power, utilization, clock changes, xid events and perf capping counters
with a notion of time attached to each sample. Example commandline:
nvidia-smi stats
* Added support for collectively reporting metrics on more than one
GPU. Used with comma separated with "-i" option. Example: nvidia-smi -i
0,1,2
* Added support for displaying the GPU encoder and decoder utiliza-
tions
* Added nvidia-smi topo interface to display the GPUDirect communica-
tion matrix (EXPERIMENTAL)
* Added support for displayed the GPU board ID and whether or not it
is a multiGPU board
* Removed user-defined throttle reason from XML output
=== Changes between nvidia-smi v5.319 Update and v331 ===
* Added reporting of minor number.
* Added reporting BAR1 memory size.
* Added reporting of bridge chip firmware.
=== Changes between nvidia-smi v4.319 Production and v4.319 Update
===
* Added new --applications-clocks-permission switch to change permis-
sion requirements for setting and resetting applications clocks.
=== Changes between nvidia-smi v4.304 and v4.319 Production ===
* Added reporting of Display Active state and updated documentation
to clarify how it differs from Display Mode and Display Active state
* For consistency on multi-GPU boards nvidia-smi -L always displays
UUID instead of serial number
* Added machine readable selective reporting. See SELECTIVE QUERY OP-
TIONS section of nvidia-smi -h
* Added queries for page retirement information. See --help-query-
retired-pages and -d PAGE_RETIREMENT
* Renamed Clock Throttle Reason User Defined Clocks to Applications
Clocks Setting
* On error, return codes have distinct non zero values for each error
class. See RETURN VALUE section
* nvidia-smi -i can now query information from healthy GPU when there
is a problem with other GPU in the system
* All messages that point to a problem with a GPU print pci bus id of
a GPU at fault
* New flag --loop-ms for querying information at higher rates than
once a second (can have negative impact on system performance)
* Added queries for accounting procsses. See --help-query-accounted-
apps and -d ACCOUNTING
* Added the enforced power limit to the query output
=== Changes between nvidia-smi v4.304 RC and v4.304 Production ===
* Added reporting of GPU Operation Mode (GOM)
* Added new --gom switch to set GPU Operation Mode
=== Changes between nvidia-smi v3.295 and v4.304 RC ===
* Reformatted non-verbose output due to user feedback. Removed pend-
ing information from table.
* Print out helpful message if initialization fails due to kernel
module not receiving interrupts
* Better error handling when NVML shared library is not present in
the system
* Added new --applications-clocks switch
* Added new filter to --display switch. Run with -d SUPPORTED_CLOCKS
to list possible clocks on a GPU
* When reporting free memory, calculate it from the rounded total and
used memory so that values add up
* Added reporting of power management limit constraints and default
limit
* Added new --power-limit switch
* Added reporting of texture memory ECC errors
* Added reporting of Clock Throttle Reasons
=== Changes between nvidia-smi v2.285 and v3.295 ===
* Clearer error reporting for running commands (like changing compute
mode)
* When running commands on multiple GPUs at once N/A errors are
treated as warnings.
* nvidia-smi -i now also supports UUID
* UUID format changed to match UUID standard and will report a dif-
ferent value.
=== Changes between nvidia-smi v2.0 and v2.285 ===
* Report VBIOS version.
* Added -d/--display flag to filter parts of data
* Added reporting of PCI Sub System ID
* Updated docs to indicate we support M2075 and C2075
* Report HIC HWBC firmware version with -u switch
* Report max(P0) clocks next to current clocks
* Added --dtd flag to print the device or unit DTD
* Added message when NVIDIA driver is not running
* Added reporting of PCIe link generation (max and current), and link
width (max and current).
* Getting pending driver model works on non-admin
* Added support for running nvidia-smi on Windows Guest accounts
* Running nvidia-smi without -q command will output non verbose ver-
sion of -q instead of help
* Fixed parsing of -l/--loop= argument (default value, 0, to big
value)
* Changed format of pciBusId (to XXXX:XX:XX.X - this change was visi-
ble in 280)
* Parsing of busId for -i command is less restrictive. You can pass
0:2:0.0 or 0000:02:00 and other variations
* Changed versioning scheme to also include "driver version"
* XML format always conforms to DTD, even when error conditions occur
* Added support for single and double bit ECC events and XID errors
(enabled by default with -l flag disabled for -x flag)
* Added device reset -r --gpu-reset flags
* Added listing of compute running processes
* Renamed power state to performance state. Deprecated support exists
in XML output only.
* Updated DTD version number to 2.0 to match the updated XML output
SEE ALSO
On Linux, the driver README is installed as
/usr/share/doc/NVIDIA_GLX-1.0/README.txt
AUTHOR
NVIDIA Corporation
COPYRIGHT
Copyright 2011-2024 NVIDIA Corporation.
nvidia-smi 535.183 2024/5/12 nvidia-smi(1)
Generated by dwww version 1.14 on Fri Jan 24 06:17:21 CET 2025.