shmem_my_pe

Returns the number of the calling PE.

Definitions

C/C++ Synopsis

int shmem_my_pe(void);

Deprecated Synopsis

Deprecated Fortran Synopsis

INTEGER SHMEM_MY_PE, ME
ME = SHMEM_MY_PE()

Arguments

None.

Description

This routine returns the PE number of the calling PE.  It accepts no
arguments.  The result is an integer between 0 and npes - 1, where npes is
the total number of PEs executing the current program.

Return Values

Integer - Between 0 and npes - 1

Notes

Each PE has a unique number or identifier. As of OpenSHMEM[1.2]
the use of _my_pe has been deprecated. Although OpenSHMEM libraries are
required to support the call, users are encouraged to use shmem_my_pe
instead.  The behavior and signature  of the routine shmem_my_pe remains
unchanged from the deprecated _my_pe version.

Examples

C/C++ Example

#include <stdio.h>
#include <shmem.h>

int main(void)
{
   shmem_init();
   int me = shmem_my_pe();
   int npes = shmem_n_pes();
   printf("I am #%d of %d PEs executing this program\n", me, npes);
   shmem_finalize();
   return 0;
}