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Check ngcards agains ranks per node

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This commit is contained in:
Gallo Alejandro 2022-08-14 15:36:22 +02:00
parent 7241bbe9fb
commit 76a785044d
1 changed files with 6 additions and 4 deletions
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10
src/atrip/Atrip.cxx
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@ -71,16 +71,18 @@ Atrip::Output Atrip::run(Atrip::Input<F> const& in) {
#if defined(HAVE_CUDA)
int ngcards;
const auto clusterInfo = getClusterInfo(Atrip::communicator);
cuDeviceGetCount(&ngcards);
LOG(0,"Atrip") << "ngcards: " << ngcards << "\n";
if (np > ngcards) {
std::cerr << "ATRIP: You are running on more ranks than the number of graphic cards\n"
if (clusterInfo.ranksPerNode > ngcards) {
std::cerr << "ATRIP: You are running on more ranks per node than the number of graphic cards\n"
<< "You have " << ngcards << " cards at your disposal\n";
throw "";
}
if (np < ngcards) {
if (clusterInfo.ranksPerNode < ngcards) {
std::cerr << "You have " << ngcards << " cards at your disposal\n"
<< "You will be only using " << np << ", i.e., the nubmer of ranks.\n";
<< "You will be only using " << clusterInfo.ranksPerNode
<< ", i.e., the nubmer of ranks.\n";
}