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Add barriers in distributed contour tree example to improve timing

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This commit is contained in:
Oliver Ruebel 2020-11-03 11:32:08 -08:00 committed by Gunther H. Weber
parent d18aacc5d6
commit a75e539686
1 changed files with 32 additions and 8 deletions
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40
examples/contour_tree_distributed/ContourTreeApp.cxx
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@ -355,9 +355,6 @@ int main(int argc, char* argv[])
#endif
<< " nblocks=" << numBlocks << std::endl);
}
currTime = totalTime.GetElapsedTime();
vtkm::Float64 startUpTime = currTime - prevTime;
prevTime = currTime;
// Redirect stdout to file if we are using MPI with Debugging
//#ifdef DEBUG_PRINT
@ -399,7 +396,16 @@ int main(int argc, char* argv[])
return 255;
}
//#endif
// Measure our time for startup
currTime = totalTime.GetElapsedTime();
vtkm::Float64 startUpTime = currTime - prevTime;
prevTime = currTime;
// Make sure that all ranks have started up before we start the data read
MPI_Barrier(comm);
currTime = totalTime.GetElapsedTime();
vtkm::Float64 startUpSyncTime = currTime - prevTime;
prevTime = currTime;
///////////////////////////////////////////////
// Read the input data
@ -592,6 +598,10 @@ int main(int argc, char* argv[])
}
}
currTime = totalTime.GetElapsedTime();
dataReadTime = currTime - prevTime;
prevTime = currTime;
// Create vtk-m data set
vtkm::cont::DataSetBuilderUniform dsb;
vtkm::cont::DataSet ds;
@ -669,10 +679,6 @@ int main(int argc, char* argv[])
}
}
currTime = totalTime.GetElapsedTime();
dataReadTime = currTime - prevTime;
prevTime = currTime;
// Print the mesh metadata
if (rank == 0)
{
@ -891,6 +897,12 @@ int main(int argc, char* argv[])
buildDatasetTime = currTime - prevTime;
prevTime = currTime;
// Make sure that all ranks have started up before we start the data read
MPI_Barrier(comm);
currTime = totalTime.GetElapsedTime();
vtkm::Float64 dataReadSyncTime = currTime - prevTime;
prevTime = currTime;
// Convert the mesh of values into contour tree, pairs of vertex ids
vtkm::filter::ContourTreeUniformDistributed filter(blocksPerDim,
globalSize,
@ -910,6 +922,12 @@ int main(int argc, char* argv[])
vtkm::Float64 computeContourTreeTime = currTime - prevTime;
prevTime = currTime;
// Make sure that all ranks have started up before we start the data read
MPI_Barrier(comm);
currTime = totalTime.GetElapsedTime();
vtkm::Float64 postFilterSyncTime = currTime - prevTime;
prevTime = currTime;
/*
std::cout << "Result dataset has " << result.GetNumberOfPartitions() << " partitions" << std::endl;
@ -981,12 +999,18 @@ int main(int argc, char* argv[])
<< " -----------------------------" << std::endl
<< std::setw(42) << std::left << " Start-up"
<< ": " << startUpTime << " seconds" << std::endl
<< std::setw(42) << std::left << " Start-up Sync"
<< ": " << startUpSyncTime << " seconds" << std::endl
<< std::setw(42) << std::left << " Data Read"
<< ": " << dataReadTime << " seconds" << std::endl
<< std::setw(42) << std::left << " Build VTKM Dataset"
<< ": " << buildDatasetTime << " seconds" << std::endl
<< std::setw(42) << std::left << " Data Read/Build Sync"
<< ": " << dataReadSyncTime << " seconds" << std::endl
<< std::setw(42) << std::left << " Compute Contour Tree"
<< ": " << computeContourTreeTime << " seconds" << std::endl
<< std::setw(42) << std::left << " Post filter Sync"
<< ": " << postFilterSyncTime << " seconds" << std::endl
<< std::setw(42) << std::left << " Save Tree Compiler Data"
<< ": " << saveTreeCompilerDataTime << " seconds" << std::endl
<< std::setw(42) << std::left << " Total Time"