source: CIVL/examples/gen/simpleMPI2.c

main
Last change on this file was ea777aa, checked in by Alex Wilton <awilton@…>, 3 years ago

Moved examples, include, build_default.properties, common.xml, and README out from dev.civl.com into the root of the repo.

git-svn-id: svn://vsl.cis.udel.edu/civl/trunk@5704 fb995dde-84ed-4084-dfe6-e5aef3e2452c

  • Property mode set to 100644
File size: 405 bytes
Line 
1#include<mpi.h>
2#include<assert.h>
3
4int myrank;
5
6int main() {
7 int argc;
8 char **argv;
9 double buf = 0.0;
10
11 MPI_Init(&argc, &argv);
12 MPI_Comm_rank(MPI_COMM_WORLD, &myrank);
13 if(myrank == 0) {
14 buf = 1.0;
15 MPI_Send(&buf, 1, MPI_DOUBLE, 1, 0, MPI_COMM_WORLD);
16 } else {
17 MPI_Recv(&buf, 1, MPI_DOUBLE, 0, 0, MPI_COMM_WORLD, MPI_STATUS_IGNORE);
18 }
19 assert(buf == 1.0);
20 MPI_Finalize();
21}
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