81 lines
2.4 KiB
C++
81 lines
2.4 KiB
C++
/*
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Copyright (C) 2014-2020, Johannes Pekkila, Miikka Vaisala.
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This file is part of Astaroth.
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Astaroth is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Astaroth is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Astaroth. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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Running: mpirun -np <num processes> <executable>
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*/
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#include "astaroth.h"
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#include "astaroth_utils.h"
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#include <mpi.h>
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int
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main(void)
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{
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MPI_Init(NULL, NULL);
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int nprocs, pid;
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MPI_Comm_size(MPI_COMM_WORLD, &nprocs);
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MPI_Comm_rank(MPI_COMM_WORLD, &pid);
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// CPU alloc
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AcMeshInfo info;
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acLoadConfig(AC_DEFAULT_CONFIG, &info);
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info.real_params[AC_inv_dsx] = AcReal(1.0) / info.real_params[AC_dsx];
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info.real_params[AC_inv_dsy] = AcReal(1.0) / info.real_params[AC_dsy];
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info.real_params[AC_inv_dsz] = AcReal(1.0) / info.real_params[AC_dsz];
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info.real_params[AC_cs2_sound] = info.real_params[AC_cs_sound] * info.real_params[AC_cs_sound];
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AcMesh model, candidate;
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if (pid == 0) {
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acMeshCreate(info, &model);
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acMeshCreate(info, &candidate);
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acMeshRandomize(&model);
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acMeshRandomize(&candidate);
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}
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// GPU alloc & compute
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Grid grid;
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acGridCreateMPI(info, &grid);
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acGridLoadMeshMPI(grid, STREAM_DEFAULT, model);
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acGridSynchronizeStreamMPI(grid, STREAM_ALL);
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acGridIntegrateMPI(grid, FLT_EPSILON);
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acGridSynchronizeStreamMPI(grid, STREAM_ALL);
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acGridSynchronizeMeshMPI(grid, STREAM_DEFAULT);
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acGridSynchronizeStreamMPI(grid, STREAM_ALL);
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acGridStoreMeshMPI(grid, STREAM_DEFAULT, &candidate);
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acGridSynchronizeStreamMPI(grid, STREAM_ALL);
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acGridDestroyMPI(grid);
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// Verify
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if (pid == 0) {
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acModelIntegrateStep(model, FLT_EPSILON);
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acMeshApplyPeriodicBounds(&model);
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acVerifyMesh(model, candidate);
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acMeshDestroy(&model);
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acMeshDestroy(&candidate);
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}
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MPI_Finalize();
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return EXIT_SUCCESS;
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}
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