source: CIVL/examples/mpi/simple/unsafe.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: 544 bytes
Line 
1#include<mpi.h>
2#include<assert.h>
3
4void main() {
5 int argc;
6 char **argv;
7 int x, y, myrank;
8
9 MPI_Init(&argc, &argv);
10 MPI_Comm_rank(MPI_COMM_WORLD, &myrank);
11 if (myrank==0) {
12 x = 10;
13 MPI_Send(&x, 1, MPI_INT, 1, 0, MPI_COMM_WORLD);
14 MPI_Recv(&y, 1, MPI_INT, 1, 0, MPI_COMM_WORLD, MPI_STATUS_IGNORE);
15 assert(y==20);
16 } else if (myrank==1) {
17 x = 20;
18 MPI_Send(&x, 1, MPI_INT, 0, 0, MPI_COMM_WORLD);
19 MPI_Recv(&y, 1, MPI_INT, 0, 0, MPI_COMM_WORLD, MPI_STATUS_IGNORE);
20 assert(y==10);
21 }
22 MPI_Finalize();
23}
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