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/*
* Copyright (C) 2010. See COPYRIGHT in top-level directory.
*/
/** ARMCI Mutex test -- James Dinan <dinan@mcs.anl.gov>
*
* All processes create N mutexes then lock+unlock all mutexes on all
* processes. Locking is accomplished via trylock in a loop.
*/
#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
#include <unistd.h>
#include <mpi.h>
#include <armci.h>
#include <armcix.h>
#define NUM_MUTEXES 10
int main(int argc, char ** argv) {
int rank, nproc, i, j;
armcix_mutex_hdl_t mhdl;
ARMCI_Group world_group;
MPI_Init(&argc, &argv);
ARMCI_Init();
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
MPI_Comm_size(MPI_COMM_WORLD, &nproc);
if (rank == 0) printf("Starting ARMCIX mutex test with %d processes\n", nproc);
ARMCI_Group_get_world(&world_group);
mhdl = ARMCIX_Create_mutexes_hdl(NUM_MUTEXES, &world_group);
for (i = 0; i < nproc; i++)
for (j = 0; j < NUM_MUTEXES; j++) {
while (ARMCIX_Trylock_hdl(mhdl, j, (rank+i)%nproc))
;
ARMCIX_Unlock_hdl(mhdl, j, (rank+i)%nproc);
}
printf(" + %3d done\n", rank);
fflush(NULL);
ARMCIX_Destroy_mutexes_hdl(mhdl);
if (rank == 0) printf("Test complete: PASS.\n");
ARMCI_Finalize();
MPI_Finalize();
return 0;
}
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