1 /* Copyright (c) 2009-2012. The SimGrid Team.
2 * All rights reserved. */
4 /* This program is free software; you can redistribute it and/or modify it
5 * under the terms of the license (GNU LGPL) which comes with this package. */
7 /* This example should be instructive to learn about SMPI_SAMPLE_LOCAL and
8 SMPI_SAMPLE_GLOBAL macros for execution sampling */
13 int main(int argc, char *argv[])
17 MPI_Init(&argc, &argv);
20 SMPI_SAMPLE_GLOBAL(3,-1) { // I want no more than 3 benchs (thres<0)
21 fprintf(stderr,"[rank:%d] Run the first computation. It's globally benched, and I want no more than 3 benchmarks (thres<0)\n", smpi_process_index());
23 for (j=0;j<100*1000*1000;j++) { // 100 kflop
34 SMPI_SAMPLE_LOCAL(0, 0.1) { // I want the standard error to go below 0.1 second. Two tests at least will be run (count is not >0)
35 fprintf(stderr,"[rank:%d] Run the first (locally benched) computation. It's locally benched, and I want the standard error to go below 0.1 second (count is not >0)\n", smpi_process_index());
36 for (j=0;j<100*1000*1000;j++) { // 100 kflop
46 fprintf(stderr,"[%d] The result of the computation is: %f\n", smpi_process_index(), d);