SHMEM_ADD(3)SHMEM_ADD(3)NAME
shmem_short_add, shmem_int_add, shmem_int4_add, shmem_int8_add,
shmem_long_add, shmem_longlong_add - Performs an atomic add operation
on a remote data object
SYNOPSIS
C or C++:
#include <mpp/shmem.h>
void shmem_short_add(short *target,short value, int pe);
void shmem_int_add(int *target, int value, int pe);
void shmem_long_add(long *target, long value, int pe);
void shmem_longlong_add(long long *target, long long value, int
pe);
Fortran:
INTEGER pe
CALL SHMEM_INT4_ADD(target, value, pe)
CALL SHMEM_INT8_ADD(target, value, pe)
DESCRIPTION
The shmem_add routine performs an atomic add operation. It adds value
to target on Processing Element (PE) pe and atomically increments the
target without returning the value. The arguments are as follows:
target The remotely accessible integer data object to be updated on
the remote PE. If you are using C/C++, the type of target
should match that implied in the SYNOPSIS section. If you
are using the Fortran compiler, it must be of type integer
with an element size of 4 bytes for SHMEM_INT4_ADD and 8
bytes for SHMEM_INT8_ADD.
value The value to be atomically added to target. If you are
using C/C++, the type of value should match that implied in
the SYNOPSIS section. If you are using Fortran, it must be
of type integer with an element size of target.
pe An integer that indicates the PE number upon which target is
to be updated. If you are using Fortran, it must be a
default integer value.
NOTES
The term remotely accessible is defined in intro_shmem(3).
SEE ALSOintro_shmem(3), shmem_cache(3)
