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DamarisWriter::setupDamarisWritingPars: use rank and size from given comm

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also return an error code rather than storing directly in the member.
This commit is contained in:
Arne Morten Kvarving 2024-01-31 09:19:53 +01:00
parent fd3c99c9e1
commit dc5bcc2e0b
1 changed files with 20 additions and 17 deletions
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37
ebos/damariswriter.hh
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@ -201,7 +201,8 @@ public:
// which define sizes of the Damaris variables, per-rank and globally (over all ranks).
// Also sets the offsets to where a ranks array data sits within the global array.
// This is usefull for HDF5 output and for defining distributed arrays in Dask.
this->setupDamarisWritingPars(simulator_.vanguard().grid().comm(), numElements_, elements_rank_offsets_);
dam_err_ = this->setupDamarisWritingPars(simulator_.vanguard().grid().comm(),
numElements_, elements_rank_offsets_);
// sets data for non-time-varying variables MPI_RANK and GLOBAL_CELL_INDEX
this->setGlobalIndexForDamaris() ;
@ -269,12 +270,12 @@ private:
std::fill(mpi_rank_var_test.data(), mpi_rank_var_test.data() + numElements_, rank_);
}
void setupDamarisWritingPars(Parallel::Communication comm,
const int n_elements_local_grid,
std::vector<unsigned long long>& elements_rank_offsets)
int setupDamarisWritingPars(Parallel::Communication comm,
const int n_elements_local_grid,
std::vector<unsigned long long>& elements_rank_offsets)
{
// one for each rank -- to be gathered from each client rank
std::vector<unsigned long long> elements_rank_sizes(nranks_);
std::vector<unsigned long long> elements_rank_sizes(comm.size());
// n_elements_local_grid should be the full model size
const unsigned long long n_elements_local = n_elements_local_grid;
@ -290,10 +291,10 @@ private:
elements_rank_offsets.begin() + 1);
// find the global/total size
unsigned long long n_elements_global_max = elements_rank_offsets[nranks_ - 1];
n_elements_global_max += elements_rank_sizes[nranks_ - 1]; // add the last ranks size to the already accumulated offset values
unsigned long long n_elements_global_max = elements_rank_offsets[comm.size() - 1];
n_elements_global_max += elements_rank_sizes[comm.size() - 1]; // add the last ranks size to the already accumulated offset values
if (rank_ == 0) {
if (comm.rank() == 0) {
OpmLog::debug(fmt::format("In setupDamarisWritingPars(): n_elements_global_max = {}",
n_elements_global_max));
}
@ -301,27 +302,29 @@ private:
// Set the paramater so that the Damaris servers can allocate the correct amount of memory for the variabe
// Damaris parameters only support int data types. This will limit models to be under size of 2^32-1 elements
// ToDo: Do we need to check that local ranks are 0 based ?
dam_err_ = DamarisOutput::setParameter("n_elements_local", rank_, elements_rank_sizes[rank_]);
int dam_err = DamarisOutput::setParameter("n_elements_local", comm.rank(), elements_rank_sizes[comm.rank()]);
// Damaris parameters only support int data types. This will limit models to be under size of 2^32-1 elements
// ToDo: Do we need to check that n_elements_global_max will fit in a C int type (INT_MAX)
if( n_elements_global_max <= std::numeric_limits<int>::max() ) {
dam_err_ = DamarisOutput::setParameter("n_elements_total", rank_, n_elements_global_max);
dam_err = DamarisOutput::setParameter("n_elements_total", comm.rank(), n_elements_global_max);
} else {
OpmLog::error(fmt::format("( rank:{} ) The size of the global array ({}) is"
"greater than what a Damaris paramater type supports ({}). ",
rank_, n_elements_global_max, std::numeric_limits<int>::max() ));
"greater than what a Damaris paramater type supports ({}). ",
comm.rank(), n_elements_global_max, std::numeric_limits<int>::max() ));
// assert( n_elements_global_max <= std::numeric_limits<int>::max() ) ;
OPM_THROW(std::runtime_error, "setupDamarisWritingPars() n_elements_global_max > std::numeric_limits<int>::max() " + std::to_string(dam_err_));
OPM_THROW(std::runtime_error, "setupDamarisWritingPars() n_elements_global_max > std::numeric_limits<int>::max() " + std::to_string(dam_err));
}
// Use damaris_set_position to set the offset in the global size of the array.
// This is used so that output functionality (e.g. HDF5Store) knows global offsets of the data of the ranks
dam_err_ = DamarisOutput::setPosition("PRESSURE", rank_, elements_rank_offsets[rank_]);
dam_err_ = DamarisOutput::setPosition("GLOBAL_CELL_INDEX", rank_, elements_rank_offsets[rank_]);
dam_err = DamarisOutput::setPosition("PRESSURE", comm.rank(), elements_rank_offsets[comm.rank()]);
dam_err = DamarisOutput::setPosition("GLOBAL_CELL_INDEX", comm.rank(), elements_rank_offsets[comm.rank()]);
// Set the size of the MPI variable
DamarisVarInt mpi_rank_var(1, {"n_elements_local"}, "MPI_RANK", rank_) ;
mpi_rank_var.setDamarisPosition({static_cast<int64_t>(elements_rank_offsets[rank_])});
DamarisVarInt mpi_rank_var(1, {"n_elements_local"}, "MPI_RANK", comm.rank()) ;
mpi_rank_var.setDamarisPosition({static_cast<int64_t>(elements_rank_offsets[comm.rank()])});
return dam_err;
}
void writeDamarisGridOutput()