// Copyright (c) 2017, Lawrence Livermore National Security, LLC. Produced at // the Lawrence Livermore National Laboratory. LLNL-CODE-734707. All Rights // reserved. See files LICENSE and NOTICE for details. // // This file is part of CEED, a collection of benchmarks, miniapps, software // libraries and APIs for efficient high-order finite element and spectral // element discretizations for exascale applications. For more information and // source code availability see http://github.com/ceed. // // The CEED research is supported by the Exascale Computing Project 17-SC-20-SC, // a collaborative effort of two U.S. Department of Energy organizations (Office // of Science and the National Nuclear Security Administration) responsible for // the planning and preparation of a capable exascale ecosystem, including // software, applications, hardware, advanced system engineering and early // testbed platforms, in support of the nation's exascale computing imperative. // libCEED + PETSc Example: Navier-Stokes // // This example demonstrates a simple usage of libCEED with PETSc to solve a // Navier-Stokes problem. // // The code is intentionally "raw", using only low-level communication // primitives. // // Build with: // // make [PETSC_DIR=] [CEED_DIR=] navierstokes // // Sample runs: // // ./navierstokes -ceed /cpu/self -problem density_current -degree 1 // ./navierstokes -ceed /gpu/cuda -problem advection -degree 1 // //TESTARGS(name="dc_explicit") -ceed {ceed_resource} -test -degree 3 -dm_plex_box_faces 1,1,2 -units_kilogram 1e-9 -lx 125 -ly 125 -lz 250 -center 62.5,62.5,187.5 -rc 100. -thetaC -35. -ts_dt 1e-3 -compare_final_state_atol 1E-11 -compare_final_state_filename examples/fluids/tests-output/fluids-navierstokes-dc-explicit.bin //TESTARGS(name="dc_implicit_stab_none") -ceed {ceed_resource} -test -degree 3 -dm_plex_box_faces 1,1,2 -units_kilogram 1e-9 -lx 125 -ly 125 -lz 250 -center 62.5,62.5,187.5 -rc 100. -thetaC -35. -ksp_atol 1e-4 -ksp_rtol 1e-3 -ksp_type bcgs -snes_atol 1e-3 -snes_lag_jacobian 100 -snes_lag_jacobian_persists -snes_mf_operator -ts_dt 1e-3 -implicit -ts_type alpha -compare_final_state_atol 5E-4 -compare_final_state_filename examples/fluids/tests-output/fluids-navierstokes-dc-implicit-stab-none.bin //TESTARGS(name="adv_rotation_explicit_strong") -ceed {ceed_resource} -test -problem advection -strong_form 1 -degree 3 -dm_plex_box_faces 2,2,2 -units_kilogram 1e-9 -lx 125 -ly 125 -lz 250 -rc 100. -ts_dt 1e-3 -compare_final_state_atol 1E-11 -compare_final_state_filename examples/fluids/tests-output/fluids-navierstokes-adv-rotation-explicit-strong.bin //TESTARGS(name="adv_rotation_implicit_sharp_cylinder") -ceed {ceed_resource} -test -problem advection -bubble_type cylinder -bubble_continuity back_sharp -degree 3 -dm_plex_box_faces 1,1,2 -units_kilogram 1e-9 -lx 125 -ly 125 -lz 250 -rc 100. -ksp_atol 1e-4 -ksp_rtol 1e-3 -ksp_type bcgs -snes_atol 1e-3 -snes_lag_jacobian 100 -snes_lag_jacobian_persists -snes_mf_operator -ts_dt 1e-3 -implicit -ts_type alpha -compare_final_state_atol 5E-4 -compare_final_state_filename examples/fluids/tests-output/fluids-navierstokes-adv-rotation-implicit-sharp-cylinder.bin //TESTARGS(name="adv_rotation_implicit_stab_supg") -ceed {ceed_resource} -test -problem advection -CtauS .3 -stab supg -degree 3 -dm_plex_box_faces 1,1,2 -units_kilogram 1e-9 -lx 125 -ly 125 -lz 250 -rc 100. -ksp_atol 1e-4 -ksp_rtol 1e-3 -ksp_type bcgs -snes_atol 1e-3 -snes_lag_jacobian 100 -snes_lag_jacobian_persists -snes_mf_operator -ts_dt 1e-3 -implicit -ts_type alpha -compare_final_state_atol 5E-4 -compare_final_state_filename examples/fluids/tests-output/fluids-navierstokes-adv-rotation-implicit-stab-supg.bin //TESTARGS(name="adv_translation_implicit_stab_su") -ceed {ceed_resource} -test -problem advection -CtauS .3 -stab su -degree 3 -dm_plex_box_faces 1,1,2 -units_kilogram 1e-9 -lx 125 -ly 125 -lz 250 -rc 100. -ksp_atol 1e-4 -ksp_rtol 1e-3 -ksp_type bcgs -snes_atol 1e-3 -snes_lag_jacobian 100 -snes_lag_jacobian_persists -snes_mf_operator -ts_dt 1e-3 -implicit -ts_type alpha -wind_type translation -wind_translation .53,-1.33,-2.65 -compare_final_state_atol 5E-4 -compare_final_state_filename examples/fluids/tests-output/fluids-navierstokes-adv-translation-implicit-stab-su.bin //TESTARGS(name="adv2d_rotation_explicit_strong") -ceed {ceed_resource} -test -problem advection2d -strong_form 1 -degree 3 -dm_plex_box_faces 2,2 -units_kilogram 1e-9 -lx 125 -ly 125 -rc 100. -ts_dt 1e-3 -compare_final_state_atol 1E-11 -compare_final_state_filename examples/fluids/tests-output/fluids-navierstokes-adv2d-rotation-explicit-strong.bin //TESTARGS(name="adv2d_rotation_implicit_stab_supg") -ceed {ceed_resource} -test -problem advection2d -CtauS .3 -stab supg -degree 3 -dm_plex_box_faces 1,1,2 -units_kilogram 1e-9 -lx 125 -ly 125 -lz 250 -rc 100. -ksp_atol 1e-4 -ksp_rtol 1e-3 -ksp_type bcgs -snes_atol 1e-3 -snes_lag_jacobian 100 -snes_lag_jacobian_persists -snes_mf_operator -ts_dt 1e-3 -implicit -ts_type alpha -compare_final_state_atol 5E-4 -compare_final_state_filename examples/fluids/tests-output/fluids-navierstokes-adv2d-rotation-implicit-stab-supg.bin //TESTARGS(name="adv2d_translation_implicit_stab_su") -ceed {ceed_resource} -test -problem advection2d -CtauS .3 -stab su -degree 3 -dm_plex_box_faces 1,1,2 -units_kilogram 1e-9 -lx 125 -ly 125 -lz 250 -rc 100. -ksp_atol 1e-4 -ksp_rtol 1e-3 -ksp_type bcgs -snes_atol 1e-3 -snes_lag_jacobian 100 -snes_lag_jacobian_persists -snes_mf_operator -ts_dt 1e-3 -implicit -ts_type alpha -wind_type translation -wind_translation .53,-1.33,0 -compare_final_state_atol 5E-4 -compare_final_state_filename examples/fluids/tests-output/fluids-navierstokes-adv2d-translation-implicit-stab-su.bin //TESTARGS(name="euler_implicit_test_none") -ceed {ceed_resource} -test -problem euler_vortex -degree 3 -dm_plex_box_faces 1,1,2 -units_meter 1e-4 -lx 125 -ly 125 -lz 1 -mean_velocity 1.4,-2.,0 -vortex_strength 2 -ksp_atol 1e-4 -ksp_rtol 1e-3 -ksp_type bcgs -snes_atol 1e-3 -snes_lag_jacobian 100 -snes_lag_jacobian_persists -snes_mf_operator -ts_dt 1e-3 -implicit -ts_type alpha -compare_final_state_atol 5E-4 -compare_final_state_filename examples/fluids/tests-output/fluids-navierstokes-euler-implicit-test-none.bin //TESTARGS(name="euler_explicit_test_none") -ceed {ceed_resource} -test -problem euler_vortex -degree 3 -dm_plex_box_faces 2,2,1 -units_meter 1e-4 -lx 125 -ly 125 -lz 1 -mean_velocity 1.4,-2.,0 -vortex_strength 2 -ts_dt 1e-7 -ts_rk_type 5bs -ts_rtol 1e-10 -ts_atol 1e-10 -compare_final_state_atol 1E-7 -compare_final_state_filename examples/fluids/tests-output/fluids-navierstokes-euler-explicit-test-none.bin //TESTARGS(name="euler_implicit_test_t1") -ceed {ceed_resource} -test -problem euler_vortex -euler_test t1 -degree 3 -dm_plex_box_faces 1,1,2 -units_meter 1e-4 -lx 125 -ly 125 -lz 1 -vortex_strength 2 -ksp_atol 1e-4 -ksp_rtol 1e-3 -ksp_type bcgs -snes_atol 1e-3 -snes_lag_jacobian 100 -snes_lag_jacobian_persists -snes_mf_operator -ts_dt 1e-3 -implicit -ts_type alpha -compare_final_state_atol 5E-4 -compare_final_state_filename examples/fluids/tests-output/fluids-navierstokes-euler-implicit-test-t1.bin //TESTARGS(name="euler_implicit_test_t2") -ceed {ceed_resource} -test -problem euler_vortex -euler_test t2 -degree 3 -dm_plex_box_faces 1,1,2 -units_meter 1e-4 -lx 125 -ly 125 -lz 1 -mean_velocity 1.4,-2.,0 -vortex_strength 2 -ksp_atol 1e-4 -ksp_rtol 1e-3 -ksp_type bcgs -snes_atol 1e-3 -snes_lag_jacobian 100 -snes_lag_jacobian_persists -snes_mf_operator -ts_dt 1e-3 -implicit -ts_type alpha -compare_final_state_atol 5E-4 -compare_final_state_filename examples/fluids/tests-output/fluids-navierstokes-euler-implicit-test-t2.bin //TESTARGS(name="euler_implicit_test_t3") -ceed {ceed_resource} -test -problem euler_vortex -euler_test t3 -degree 3 -dm_plex_box_faces 1,1,2 -units_meter 1e-4 -lx 125 -ly 125 -lz 1 -vortex_strength 2 -ksp_atol 1e-4 -ksp_rtol 1e-3 -ksp_type bcgs -snes_atol 1e-3 -snes_lag_jacobian 100 -snes_lag_jacobian_persists -snes_mf_operator -ts_dt 1e-3 -implicit -ts_type alpha -compare_final_state_atol 5E-4 -compare_final_state_filename examples/fluids/tests-output/fluids-navierstokes-euler-implicit-test-t3.bin //TESTARGS(name="euler_implicit_test_t4") -ceed {ceed_resource} -test -problem euler_vortex -euler_test t4 -degree 3 -dm_plex_box_faces 1,1,2 -units_meter 1e-4 -lx 125 -ly 125 -lz 1 -mean_velocity 1.4,-2.,0 -vortex_strength 2 -ksp_atol 1e-4 -ksp_rtol 1e-3 -ksp_type bcgs -snes_atol 1e-3 -snes_lag_jacobian 100 -snes_lag_jacobian_persists -snes_mf_operator -ts_dt 1e-3 -implicit -ts_type alpha -compare_final_state_atol 5E-4 -compare_final_state_filename examples/fluids/tests-output/fluids-navierstokes-euler-implicit-test-t4.bin /// @file /// Navier-Stokes example using PETSc const char help[] = "Solve Navier-Stokes using PETSc and libCEED\n"; #include "navierstokes.h" int main(int argc, char **argv) { // --------------------------------------------------------------------------- // Initialize PETSc // --------------------------------------------------------------------------- PetscInt ierr; ierr = PetscInitialize(&argc, &argv, NULL, help); if (ierr) return ierr; // --------------------------------------------------------------------------- // Create structs // --------------------------------------------------------------------------- AppCtx app_ctx; ierr = PetscCalloc1(1, &app_ctx); CHKERRQ(ierr); ProblemData *problem = NULL; ierr = PetscCalloc1(1, &problem); CHKERRQ(ierr); User user; ierr = PetscCalloc1(1, &user); CHKERRQ(ierr); CeedData ceed_data; ierr = PetscCalloc1(1, &ceed_data); CHKERRQ(ierr); SimpleBC bc; ierr = PetscCalloc1(1, &bc); CHKERRQ(ierr); SetupContext setup_ctx; ierr = PetscCalloc1(1, &setup_ctx); CHKERRQ(ierr); Physics phys_ctx; ierr = PetscCalloc1(1, &phys_ctx); CHKERRQ(ierr); Units units; ierr = PetscCalloc1(1, &units); CHKERRQ(ierr); user->app_ctx = app_ctx; user->units = units; user->phys = phys_ctx; // --------------------------------------------------------------------------- // Process command line options // --------------------------------------------------------------------------- // -- Register problems to be available on the command line ierr = RegisterProblems_NS(app_ctx); CHKERRQ(ierr); // -- Process general command line options MPI_Comm comm = PETSC_COMM_WORLD; user->comm = comm; ierr = ProcessCommandLineOptions(comm, app_ctx); CHKERRQ(ierr); // --------------------------------------------------------------------------- // Choose the problem from the list of registered problems // --------------------------------------------------------------------------- { PetscErrorCode (*p)(ProblemData *, void *, void *); ierr = PetscFunctionListFind(app_ctx->problems, app_ctx->problem_name, &p); CHKERRQ(ierr); if (!p) SETERRQ1(PETSC_COMM_SELF, 1, "Problem '%s' not found", app_ctx->problem_name); ierr = (*p)(problem, &setup_ctx, &user); CHKERRQ(ierr); } // --------------------------------------------------------------------------- // Initialize libCEED // --------------------------------------------------------------------------- // -- Initialize backend Ceed ceed; CeedInit(app_ctx->ceed_resource, &ceed); user->ceed = ceed; // -- Check preferred MemType CeedMemType mem_type_backend; CeedGetPreferredMemType(ceed, &mem_type_backend); // --------------------------------------------------------------------------- // Set up global mesh // --------------------------------------------------------------------------- // -- Create distribute DM DM dm; ierr = CreateDistributedDM(comm, problem, setup_ctx, &dm); CHKERRQ(ierr); VecType vec_type = NULL; switch (mem_type_backend) { case CEED_MEM_HOST: vec_type = VECSTANDARD; break; case CEED_MEM_DEVICE: { const char *resolved; CeedGetResource(ceed, &resolved); if (strstr(resolved, "/gpu/cuda")) vec_type = VECCUDA; else if (strstr(resolved, "/gpu/hip")) vec_type = VECHIP; else vec_type = VECSTANDARD; } } ierr = DMSetVecType(dm, vec_type); CHKERRQ(ierr); ierr = DMSetFromOptions(dm); CHKERRQ(ierr); user->dm = dm; // -- Set up DM ierr = SetUpDM(dm, problem, app_ctx->degree, bc, phys_ctx, setup_ctx); CHKERRQ(ierr); // -- Refine DM for high-order viz if (app_ctx->viz_refine) { ierr = VizRefineDM(dm, user, problem, bc, phys_ctx, setup_ctx); CHKERRQ(ierr); } // --------------------------------------------------------------------------- // Set up libCEED // --------------------------------------------------------------------------- // -- Set up libCEED objects ierr = SetupLibceed(ceed, ceed_data, dm, user, app_ctx, problem, bc); CHKERRQ(ierr); // -- Set up contex for QFunctions ierr = SetupContextForProblems(ceed, ceed_data, app_ctx, setup_ctx, phys_ctx); CHKERRQ(ierr); // --------------------------------------------------------------------------- // Set up ICs // --------------------------------------------------------------------------- // -- Set up global state vector Q Vec Q; ierr = DMCreateGlobalVector(dm, &Q); CHKERRQ(ierr); ierr = VecZeroEntries(Q); CHKERRQ(ierr); // -- Set up local state vector Q_loc Vec Q_loc; ierr = DMGetLocalVector(dm, &Q_loc); CHKERRQ(ierr); // -- Fix multiplicity for ICs ierr = ICs_FixMultiplicity(dm, ceed_data, Q_loc, Q, 0.0); CHKERRQ(ierr); // --------------------------------------------------------------------------- // Set up lumped mass matrix // --------------------------------------------------------------------------- // -- Set up global mass vector ierr = VecDuplicate(Q, &user->M); CHKERRQ(ierr); // -- Compute lumped mass matrix ierr = ComputeLumpedMassMatrix(ceed, dm, ceed_data, user->M); CHKERRQ(ierr); // --------------------------------------------------------------------------- // Record boundary values from initial condition // --------------------------------------------------------------------------- // -- This overrides DMPlexInsertBoundaryValues(). // We use this for the main simulation DM because the reference // DMPlexInsertBoundaryValues() is very slow. If we disable this, we should // still get the same results due to the problem->bc function, but with // potentially much slower execution. if (1) {ierr = SetBCsFromICs_NS(dm, Q, Q_loc); CHKERRQ(ierr);} // --------------------------------------------------------------------------- // Create output directory // --------------------------------------------------------------------------- PetscMPIInt rank; MPI_Comm_rank(comm, &rank); if (!rank) {ierr = PetscMkdir(app_ctx->output_dir); CHKERRQ(ierr);} // --------------------------------------------------------------------------- // Gather initial Q values in case of continuation of simulation // --------------------------------------------------------------------------- // -- Set up initial values from binary file if (app_ctx->cont_steps) { ierr = SetupICsFromBinary(comm, app_ctx, Q); CHKERRQ(ierr); } // --------------------------------------------------------------------------- // Print problem summary // --------------------------------------------------------------------------- if (!app_ctx->test_mode) { // Header and rank char host_name[PETSC_MAX_PATH_LEN]; int comm_size; ierr = PetscGetHostName(host_name, sizeof host_name); CHKERRQ(ierr); ierr = MPI_Comm_size(comm, &comm_size); CHKERRQ(ierr); ierr = PetscPrintf(comm, "\n-- Navier-Stokes solver - libCEED + PETSc --\n" " MPI:\n" " Host Name : %s\n" " Total ranks : %d\n", host_name, comm_size); CHKERRQ(ierr); // Problem specific info ierr = problem->print_info(phys_ctx, setup_ctx, app_ctx); CHKERRQ(ierr); // libCEED const char *used_resource; CeedGetResource(ceed, &used_resource); ierr = PetscPrintf(comm, " libCEED:\n" " libCEED Backend : %s\n" " libCEED Backend MemType : %s\n", used_resource, CeedMemTypes[mem_type_backend]); CHKERRQ(ierr); // PETSc char box_faces_str[PETSC_MAX_PATH_LEN] = "NONE"; ierr = PetscOptionsGetString(NULL, NULL, "-dm_plex_box_faces", box_faces_str, sizeof(box_faces_str), NULL); CHKERRQ(ierr); ierr = PetscPrintf(comm, " PETSc:\n" " Box Faces : %s\n" " Time Stepping Scheme : %s\n", box_faces_str, phys_ctx->implicit ? "implicit" : "explicit"); CHKERRQ(ierr); // Mesh const PetscInt num_comp_q = 5; CeedInt glob_dofs, owned_dofs; PetscInt glob_nodes, owned_nodes; const CeedInt num_P = app_ctx->degree + 1, num_Q = num_P + app_ctx->q_extra; // -- Get global size ierr = VecGetSize(Q, &glob_dofs); CHKERRQ(ierr); ierr = VecGetLocalSize(Q, &owned_dofs); CHKERRQ(ierr); glob_nodes = glob_dofs/num_comp_q; // -- Get local size ierr = VecGetSize(Q_loc, &owned_nodes); CHKERRQ(ierr); owned_nodes /= num_comp_q; ierr = PetscPrintf(comm, " Mesh:\n" " Number of 1D Basis Nodes (P) : %d\n" " Number of 1D Quadrature Points (Q) : %d\n" " Global DoFs : %D\n" " Owned DoFs : %D\n" " DoFs per node : %D\n" " Global nodes : %D\n" " Owned nodes : %D\n", num_P, num_Q, glob_dofs, owned_dofs, num_comp_q, glob_nodes, owned_nodes); CHKERRQ(ierr); } // -- Restore Q_loc ierr = DMRestoreLocalVector(dm, &Q_loc); CHKERRQ(ierr); // --------------------------------------------------------------------------- // TS: Create, setup, and solve // --------------------------------------------------------------------------- TS ts; PetscScalar final_time; ierr = TSSolve_NS(dm, user, app_ctx, phys_ctx, &Q, &final_time, &ts); CHKERRQ(ierr); // --------------------------------------------------------------------------- // Post-processing // --------------------------------------------------------------------------- ierr = PostProcess_NS(ts, ceed_data, dm, problem, app_ctx, Q, final_time); CHKERRQ(ierr); // --------------------------------------------------------------------------- // Destroy libCEED objects // --------------------------------------------------------------------------- // -- Vectors CeedVectorDestroy(&ceed_data->x_coord); CeedVectorDestroy(&ceed_data->q_data); CeedVectorDestroy(&user->q_ceed); CeedVectorDestroy(&user->q_dot_ceed); CeedVectorDestroy(&user->g_ceed); // -- Contexts CeedQFunctionContextDestroy(&ceed_data->setup_context); CeedQFunctionContextDestroy(&ceed_data->dc_context); CeedQFunctionContextDestroy(&ceed_data->advection_context); CeedQFunctionContextDestroy(&ceed_data->euler_context); // -- QFunctions CeedQFunctionDestroy(&ceed_data->qf_setup_vol); CeedQFunctionDestroy(&ceed_data->qf_ics); CeedQFunctionDestroy(&ceed_data->qf_rhs_vol); CeedQFunctionDestroy(&ceed_data->qf_ifunction_vol); CeedQFunctionDestroy(&ceed_data->qf_setup_sur); CeedQFunctionDestroy(&ceed_data->qf_apply_sur); // -- Bases CeedBasisDestroy(&ceed_data->basis_q); CeedBasisDestroy(&ceed_data->basis_x); CeedBasisDestroy(&ceed_data->basis_xc); CeedBasisDestroy(&ceed_data->basis_q_sur); CeedBasisDestroy(&ceed_data->basis_x_sur); CeedBasisDestroy(&ceed_data->basis_xc_sur); // -- Restrictions CeedElemRestrictionDestroy(&ceed_data->elem_restr_q); CeedElemRestrictionDestroy(&ceed_data->elem_restr_x); CeedElemRestrictionDestroy(&ceed_data->elem_restr_qd_i); // -- Operators CeedOperatorDestroy(&ceed_data->op_setup_vol); CeedOperatorDestroy(&ceed_data->op_ics); CeedOperatorDestroy(&user->op_rhs_vol); CeedOperatorDestroy(&user->op_ifunction_vol); CeedOperatorDestroy(&user->op_rhs); CeedOperatorDestroy(&user->op_ifunction); // -- Ceed CeedDestroy(&ceed); // --------------------------------------------------------------------------- // Clean up PETSc // --------------------------------------------------------------------------- // -- Vectors ierr = VecDestroy(&Q); CHKERRQ(ierr); ierr = VecDestroy(&user->M); CHKERRQ(ierr); // -- Matrices ierr = MatDestroy(&user->interp_viz); CHKERRQ(ierr); // -- DM ierr = DMDestroy(&dm); CHKERRQ(ierr); ierr = DMDestroy(&user->dm_viz); CHKERRQ(ierr); // -- TS ierr = TSDestroy(&ts); CHKERRQ(ierr); // -- Function list ierr = PetscFunctionListDestroy(&app_ctx->problems); CHKERRQ(ierr); // -- Structs ierr = PetscFree(units); CHKERRQ(ierr); ierr = PetscFree(user); CHKERRQ(ierr); ierr = PetscFree(problem); CHKERRQ(ierr); ierr = PetscFree(bc); CHKERRQ(ierr); ierr = PetscFree(setup_ctx); CHKERRQ(ierr); ierr = PetscFree(phys_ctx->dc_ctx); CHKERRQ(ierr); ierr = PetscFree(phys_ctx->euler_ctx); CHKERRQ(ierr); ierr = PetscFree(phys_ctx->advection_ctx); CHKERRQ(ierr); ierr = PetscFree(phys_ctx); CHKERRQ(ierr); ierr = PetscFree(app_ctx); CHKERRQ(ierr); ierr = PetscFree(ceed_data); CHKERRQ(ierr); return PetscFinalize(); }