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:
532 bytes
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| 1 | #include <mpi.h>
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| 2 | #include <stdio.h>
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| 3 | #include <assert.h>
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| 4 |
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| 5 |
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| 6 | int main() {
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| 7 | int rank;
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| 8 | double prefixSums[3];
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| 9 | double values[3] = {1, 2, 3};
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| 10 |
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| 11 | MPI_Init(NULL, NULL);
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| 12 | MPI_Comm_rank(MPI_COMM_WORLD, &rank);
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| 13 |
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| 14 | MPI_Exscan(values, prefixSums, 3, MPI_DOUBLE, MPI_SUM, MPI_COMM_WORLD);
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| 15 |
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| 16 | printf("I'm rank %d, my results are %f, %f, %f\n", rank, prefixSums[0], prefixSums[1], prefixSums[2]);
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| 17 | if (rank > 0)
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| 18 | assert(prefixSums[0] == rank && prefixSums[1] == 2 * (rank)
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| 19 | && prefixSums[2] == 3 * (rank));
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| 20 | MPI_Finalize();
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| 21 | return 0;
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| 22 | }
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