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Updates for MPI runs.

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This commit is contained in:
Patrick Shriwise 2019-10-08 11:34:26 -05:00
parent 17ebd34b45
commit b2c064cc35
1 changed files with 19 additions and 0 deletions
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19
src/volume_calc.cpp
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@ -325,11 +325,30 @@ std::vector<VolumeCalculation::Result> VolumeCalculation::execute() const
}
}
#ifdef OPENMC_MPI
// update maximum error value on all processes
if (mpi::master) {
for (int i = 1; i < mpi::n_procs; i++) {
MPI_Send(&max_vol_err, 1, MPI_DOUBLE, i, 0, mpi::intracomm);
}
} else {
MPI_Recv(&max_vol_err, 1, MPI_DOUBLE, 0, 0, mpi::intracomm, MPI_STATUS_IGNORE);
}
#endif
// return results of the calculation
if (trigger_type_ == ThresholdType::NONE || max_vol_err < threshold_) {
return results;
}
#ifdef OPENMC_MPI
// if iterating in MPI, need to zero indices and hits to they aren't counted twice
if (!mpi::master) {
for (auto& v : master_indices) { std::fill(v.begin(), v.end(), 0.0); }
for (auto& v : master_hits) { std::fill(v.begin(), v.end(), 0.0); }
}
#endif
} // end while
}