shmem_udcflush.3 - Online Linux Manual Page

SHMEM\_CACHE - Online Linux Manual PageSection : 3
Updated : Jan 21, 2016
Source : 1.10.2
Note : Open MPI

NAMEshmem_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

SYNOPSISC 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)

DESCRIPTIONThe following argument is passed to the cache line control routines: target A data object that is local to the processing element (PE). target 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 previously 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 previously 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.

NOTESThese routines have been retained for improved backward compatability with legacy architectures.

SEE ALSOintro_shmem(3), shmem_put(3), shmem_swap(3) 0

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