text: /* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil ; -*- */
  /*
   *  (C) 2001 by Argonne National Laboratory.
   *      See COPYRIGHT in top-level directory.
   */
  
  #include <stdio.h>
  #include <stdlib.h>
  
  #include <mpi.h>
  
  #define DATA_NELTS  1000
  #define NUM_WIN     1000
  #define DATA_SZ     (DATA_NELTS*sizeof(int))
  
  static int verbose = 0;
  
  int main(int argc, char ** argv) {
    int      rank, nproc, i;
    void    *base_ptrs[NUM_WIN];
    MPI_Win  windows[NUM_WIN];
  
    MPI_Init(&argc, &argv);
  
    MPI_Comm_rank(MPI_COMM_WORLD, &rank);
    MPI_Comm_size(MPI_COMM_WORLD, &nproc);
  
    if (rank == 0) if (verbose) printf("Starting MPI window creation test with %d processes\n", nproc);
  
    /* Perform a pile of window creations */
    for (i = 0; i < NUM_WIN; i++) {
      if (rank == 0) if (verbose) printf(" + Creating window %d\n", i);
  
      MPI_Alloc_mem(DATA_SZ, MPI_INFO_NULL, &base_ptrs[i]);
      MPI_Win_create(base_ptrs[i], DATA_SZ, 1, MPI_INFO_NULL, MPI_COMM_WORLD, &windows[i]);
    }
  
    MPI_Barrier(MPI_COMM_WORLD);
  
    /* Free all the windows */
    for (i = 0; i < NUM_WIN; i++) {
      if (rank == 0) if (verbose) printf(" + Freeing window %d\n", i);
  
      MPI_Win_free(&windows[i]);
      MPI_Free_mem(base_ptrs[i]);
    }
  
    if (rank == 0) printf(" No Errors\n");
  
    MPI_Finalize();
  
    return 0;
  }
  