main
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Last change
on this file was ea777aa, checked in by Alex Wilton <awilton@…>, 3 years ago |
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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
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Property mode
set to
100644
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File size:
520 bytes
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| [f4bd985] | 1 | #include "allreduce.h"
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| 2 | #include "stdlib.h"
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| 3 |
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| 4 | #define VEC_N 10
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| 5 |
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| 6 | int main() {
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| 7 | MPI_Init(NULL, NULL);
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| 8 |
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| 9 | struct comm * comm = (struct comm*)malloc(sizeof(struct comm));
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| 10 |
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| 11 | comm->c = MPI_COMM_WORLD;
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| 12 | MPI_Comm_rank(comm->c, &comm->id);
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| 13 | MPI_Comm_size(comm->c, &comm->np);
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| 14 |
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| 15 | int vn = VEC_N;
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| 16 | int v[VEC_N], buf[VEC_N];
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| 17 |
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| 18 | for (int i = 0; i < VEC_N; i++) v[i] = 1;
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| 19 |
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| 20 | comm_allreduce(comm, gs_int, gs_add,
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| 21 | v, vn, buf);
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| 22 |
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| 23 | $assert($forall (int i : 0 .. VEC_N-1) buf[i] == comm->np);
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| 24 |
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| 25 | MPI_Finalize();
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| 26 | free(comm);
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| 27 | }
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