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Pass parameter --slave=true to the slaves

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This commit is contained in:
Håkon Hægland 2024-06-28 13:36:10 +02:00
parent ba7c1d589b
commit 71d06c5bdb
1 changed files with 13 additions and 4 deletions
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17
opm/simulators/flow/ReservoirCouplingMaster.cpp
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@ -61,12 +61,13 @@ void ReservoirCouplingMaster::spawnSlaveProcesses([[maybe_unused]]int argc, char
std::filesystem::path dir_path(directory_path);
std::filesystem::path data_file(data_file_name);
std::filesystem::path full_path = dir_path / data_file;
std::vector<char*> slave_argv(2);
slave_argv[0] = const_cast<char*>(full_path.c_str());
slave_argv[1] = nullptr;
std::vector<char*> slave_argv(3);
char enable_slave_arg[] = "--slave=true";
slave_argv[0] = enable_slave_arg;
slave_argv[1] = const_cast<char*>(full_path.c_str());
slave_argv[2] = nullptr;
auto num_procs = slave.numprocs();
std::vector<int> errcodes(num_procs);
const std::string log_file = fmt::format("{}.log", slave_name);
// TODO: We need to decide how to handle the output from the slave processes..
// As far as I can tell, open MPI does not support redirecting the output
// to a file, so we might need to implement a custom solution for this
@ -81,6 +82,14 @@ void ReservoirCouplingMaster::spawnSlaveProcesses([[maybe_unused]]int argc, char
/*array_of_errcodes=*/errcodes.data()
);
if (spawn_result != MPI_SUCCESS || (*master_slave_comm == MPI_COMM_NULL)) {
for (unsigned int i = 0; i < num_procs; i++) {
if (errcodes[i] != MPI_SUCCESS) {
char error_string[MPI_MAX_ERROR_STRING];
int length_of_error_string;
MPI_Error_string(errcodes[i], error_string, &length_of_error_string);
std::cerr << "Error spawning process " << i << ": " << error_string << std::endl;
}
}
OPM_THROW(std::runtime_error, "Failed to spawn slave process");
}
this->master_slave_comm_.push_back(std::move(master_slave_comm));