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oshmem_symmetric_data.c 1.11 KiB
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    /*
     * Copyright (c) 2014-2016 Mellanox Technologies, Inc.
     *                         All rights reserved.
     * $COPYRIGHT$
     *
     * Additional copyrights may follow
     *
     * $HEADER$
     */
    
    #include <stdio.h>
    #include <shmem.h>
    
    #define SIZE 16
    
    int main(int argc, char* argv[])
    {
        short source[SIZE];
        static short target[SIZE];
        int i;
        int num_pe, my_pe;
    
        shmem_init();
    
        num_pe = shmem_n_pes();
        my_pe = shmem_my_pe();
    
        if (my_pe == 0) {
            /* initialize array */
            for(i = 0; i < SIZE; i++) {
                source[i] = i;
            }
            /* local, not symmetric */
            /* static makes it symmetric */
            /* put "size" words into target on each PE */
            for(i = 1; i < num_pe; i++) {
                shmem_short_put(target, source, SIZE, i);
            }
        }
    
        shmem_barrier_all(); /* sync sender and receiver */
    
        if (my_pe != 0) {
            printf("Target on PE %d is \t", my_pe);
    
            for(i = 0; i < SIZE; i++) {
                printf("%hd \t", target[i]);
            }
            printf("\n");
        }
    
        shmem_barrier_all(); /* sync before exiting */
        shmem_finalize();
    
        return 0;
    }