SHMEM_CACHE(3) Open MPI SHMEM_CACHE(3)
NAME
shmem_clear_cache_inv(3), shmem_set_cache_inv(3),
shmem_set_cache_line_inv(3), shmem_udcflush(3), shmem_udcflush_line(3)
- Controls data cache utilities
SYNOPSIS
C or C++:
#include <mpp/shmem.h>
void shmem_clear_cache_inv(void);
void shmem_clear_cache_line_inv(void *target);
void shmem_set_cache_inv(void);
void shmem_set_cache_line_inv(void *target);
void shmem_udcflush(void);
void shmem_udcflush_line(void *target);
Fortran:
INCLUDE "mpp/shmem.fh"
CALL SHMEM_CLEAR_CACHE_INV
CALL SHMEM_CLEAR_CACHE_LINE_INV(target)
CALL SHMEM_SET_CACHE_INV
CALL SHMEM_SET_CACHE_LINE_INV(target)
CALL SHMEM_UDCFLUSH
CALL SHMEM_UDCFLUSH_LINE(target)
DESCRIPTION
The following argument is passed to the cache line control routines:
target A data object that is local to the processing element (PE). tar-
get can be of any noncharacter type. If you are using Fortran,
it can be of any kind.
shmem_clear_cache_inv disables automatic cache coherency mode previ-
ously enabled by shmem_set_cache_inv or shmem_set_cache_line_inv.
shmem_clear_cache_line_inv disables automatic cache coherency mode for
the cache line associated with the address of target only.
shmem_set_cache_inv enables the OpenSHMEM API to automatically decide
the best strategy for cache coherency.
shmem_set_cache_line_inv enables automatic cache coherency mode for the
cache line associated with the address of target only.
shmem_clear_cache_inv disables automatic cache coherency mode previ-
ously enabled by shmem_set_cache_inv or shmem_set_cache_line_inv.
shmem_udcflush makes the entire user data cache coherent.
shmem_udcflush_line makes coherent the cache line that corresponds with
the address specified by target.
NOTES
These routines have been retained for improved backward compatability
with legacy architectures.
SEE ALSO
intro_shmem(3), shmem_put(3), shmem_swap(3)
4.1.2 Nov 24, 2021 SHMEM_CACHE(3)
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