NAME

       shmem_int_add(3),       shmem_int4_add(3),      shmem_int8_add(3),      shmem_long_add(3),
       shmem_longlong_add(3) - Performs an atomic add operation.

SYNOPSIS

       C or C++:
       #include <mpp/shmem.h>

       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:
       include 'mpp/shmem.h'

       INTEGER pe

       CALL SHMEM_INT4_ADD(target, value, pe)
       CALL SHMEM_INT8_ADD(target, value, pe)

DESCRIPTION

       The atomic add routines add value to the data at address target on PE pe.   The  operation
       completes  without  the possibility of another process updating target between the time of
       the fetch and the update.

       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 ALSO

       intro_shmem(3), shmem_cache(3)