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Merge branch 'UpdateBenchmarks' into 'master'
Update benchmarks See merge request walberla/walberla!685
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| //====================================================================================================================== | ||
| // | ||
| // This file is part of waLBerla. waLBerla is free software: you can | ||
| // redistribute it and/or modify it under the terms of the GNU General Public | ||
| // License as published by the Free Software Foundation, either version 3 of | ||
| // the License, or (at your option) any later version. | ||
| // | ||
| // waLBerla is distributed in the hope that it will be useful, but WITHOUT | ||
| // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| // for more details. | ||
| // | ||
| // You should have received a copy of the GNU General Public License along | ||
| // with waLBerla (see COPYING.txt). If not, see <http://www.gnu.org/licenses/>. | ||
| // | ||
| //! \file GridGeneration.h | ||
| //! \author Markus Holzer <markus.holzer@fau.de> | ||
| // | ||
| //====================================================================================================================== | ||
| #pragma once | ||
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| #include "blockforest/Initialization.h" | ||
| #include "blockforest/SetupBlock.h" | ||
| #include "blockforest/SetupBlockForest.h" | ||
| #include "blockforest/loadbalancing/StaticCurve.h" | ||
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| #include "core/Environment.h" | ||
| #include "core/logging/Initialization.h" | ||
| #include "core/timing/RemainingTimeLogger.h" | ||
| #include "core/timing/TimingPool.h" | ||
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| #include <string> | ||
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| #include "LdcSetup.h" | ||
| #include "NonUniformGridCPUInfoHeader.h" | ||
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| using StorageSpecification_T = lbm::NonUniformGridCPUStorageSpecification; | ||
| using Stencil_T = StorageSpecification_T::Stencil; | ||
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| using namespace walberla; | ||
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| void createSetupBlockForest(SetupBlockForest& setupBfs, | ||
| const Config::BlockHandle& domainSetup, const Config::BlockHandle& blockForestSetup, | ||
| const bool useMPIManager=false) | ||
| { | ||
| WALBERLA_LOG_INFO_ON_ROOT("Generating SetupBlockForest...") | ||
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| Vector3<real_t> domainSize = domainSetup.getParameter<Vector3<real_t> >("domainSize"); | ||
| Vector3< uint_t > cellsPerBlock = domainSetup.getParameter< Vector3< uint_t > >("cellsPerBlock"); | ||
| Vector3<uint_t> rootBlocks = domainSetup.getParameter<Vector3<uint_t> >("rootBlocks"); | ||
| Vector3<bool> periodic = domainSetup.getParameter<Vector3<bool> >("periodic"); | ||
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| const uint_t refinementDepth = blockForestSetup.getParameter< uint_t >("refinementDepth", uint_c(1)); | ||
| uint_t numProcesses = blockForestSetup.getParameter< uint_t >( "numProcesses"); | ||
| const std::string blockForestFilestem = blockForestSetup.getParameter< std::string > ("blockForestFilestem", "blockforest"); | ||
| const bool writeVtk = blockForestSetup.getParameter< bool >("writeVtk", false); | ||
| const bool outputStatistics = blockForestSetup.getParameter< bool >("outputStatistics", false); | ||
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| if(useMPIManager) | ||
| numProcesses = uint_c(mpi::MPIManager::instance()->numProcesses()); | ||
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| const LDC ldc(refinementDepth); | ||
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| auto refSelection = ldc.refinementSelector(); | ||
| setupBfs.addRefinementSelectionFunction(std::function<void(SetupBlockForest &)>(refSelection)); | ||
| const AABB domain(real_t(0.0), real_t(0.0), real_t(0.0), domainSize[0], domainSize[1], domainSize[2]); | ||
| setupBfs.addWorkloadMemorySUIDAssignmentFunction(blockforest::uniformWorkloadAndMemoryAssignment); | ||
| setupBfs.init(domain, rootBlocks[0], rootBlocks[1], rootBlocks[2], periodic[0], periodic[1], periodic[2]); | ||
| setupBfs.balanceLoad(blockforest::StaticLevelwiseCurveBalanceWeighted(), numProcesses); | ||
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| if(mpi::MPIManager::instance()->numProcesses() > 1) | ||
| return; | ||
|
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| { | ||
| std::ostringstream oss; | ||
| oss << blockForestFilestem << ".bfs"; | ||
| setupBfs.saveToFile(oss.str().c_str()); | ||
| } | ||
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| if(writeVtk){ | ||
| setupBfs.writeVTKOutput(blockForestFilestem); | ||
| } | ||
|
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| if(outputStatistics){ | ||
| WALBERLA_LOG_INFO_ON_ROOT("=========================== BLOCK FOREST STATISTICS ============================"); | ||
| WALBERLA_LOG_INFO_ON_ROOT("Blocks created: " << setupBfs.getNumberOfBlocks()) | ||
| for (uint_t level = 0; level <= refinementDepth; level++) | ||
| { | ||
| const uint_t numberOfBlocks = setupBfs.getNumberOfBlocks(level); | ||
| WALBERLA_LOG_INFO_ON_ROOT("Level " << level << " Blocks: " << numberOfBlocks) | ||
| } | ||
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| const real_t avgBlocksPerProc = real_c(setupBfs.getNumberOfBlocks()) / real_c(setupBfs.getNumberOfProcesses()); | ||
| WALBERLA_LOG_INFO_ON_ROOT("Average blocks per process: " << avgBlocksPerProc); | ||
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| const uint_t totalNumberCells = setupBfs.getNumberOfBlocks() * cellsPerBlock[0] * cellsPerBlock[1] * cellsPerBlock[2]; | ||
| const real_t averageCellsPerGPU = avgBlocksPerProc * real_c(cellsPerBlock[0] * cellsPerBlock[1] * cellsPerBlock[2]); | ||
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| const uint_t PDFsPerCell = StorageSpecification_T::inplace ? Stencil_T::Q : 2 * Stencil_T::Q; | ||
| const uint_t valuesPerCell = (PDFsPerCell + VelocityField_T::F_SIZE + ScalarField_T::F_SIZE); | ||
| const uint_t sizePerValue = sizeof(StorageSpecification_T::value_type); | ||
| const double expectedMemory = double_c(totalNumberCells * valuesPerCell * sizePerValue) * 1e-9; | ||
| const double expectedMemoryPerGPU = double_c(averageCellsPerGPU * valuesPerCell * sizePerValue) * 1e-9; | ||
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| WALBERLA_LOG_INFO_ON_ROOT( "Total number of cells will be " << totalNumberCells << " fluid cells (in total on all levels)") | ||
| WALBERLA_LOG_INFO_ON_ROOT( "Expected total memory demand will be " << expectedMemory << " GB") | ||
| WALBERLA_LOG_INFO_ON_ROOT( "Average memory demand per GPU will be " << expectedMemoryPerGPU << " GB") | ||
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| WALBERLA_LOG_INFO_ON_ROOT("================================================================================="); | ||
| } | ||
| } | ||
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| void createBlockForest(shared_ptr< BlockForest >& bfs, | ||
| const Config::BlockHandle& domainSetup, const Config::BlockHandle& blockForestSetup) | ||
| { | ||
| if (mpi::MPIManager::instance()->numProcesses() > 1) | ||
| { | ||
| const std::string blockForestFilestem = | ||
| blockForestSetup.getParameter< std::string >("blockForestFilestem", "blockforest"); | ||
| // Load structured block forest from file | ||
| std::ostringstream oss; | ||
| oss << blockForestFilestem << ".bfs"; | ||
| const std::string setupBlockForestFilepath = oss.str(); | ||
| std::ifstream infile(setupBlockForestFilepath.c_str()); | ||
| if(!infile.good()) | ||
| { | ||
| WALBERLA_LOG_WARNING_ON_ROOT("Blockforest was not created beforehand and thus needs to be created on the fly. For large simulation runs this can be a severe problem!") | ||
| SetupBlockForest setupBfs; | ||
| createSetupBlockForest(setupBfs, domainSetup, blockForestSetup, true); | ||
| bfs = std::make_shared< BlockForest >(uint_c(MPIManager::instance()->worldRank()), setupBfs); | ||
| } | ||
| else | ||
| { | ||
| bfs = std::make_shared< BlockForest >(uint_c(MPIManager::instance()->worldRank()), | ||
| setupBlockForestFilepath.c_str(), false); | ||
| } | ||
| } | ||
| else | ||
| { | ||
| SetupBlockForest setupBfs; | ||
| createSetupBlockForest(setupBfs, domainSetup, blockForestSetup); | ||
| bfs = std::make_shared< BlockForest >(uint_c(MPIManager::instance()->worldRank()), setupBfs); | ||
| } | ||
| } |
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