v0.13.1
Loading...
Searching...
No Matches
Classes | Typedefs | Functions | Variables
h_adaptive_transport.cpp File Reference

Example implementation of transport problem using mixed formulation. More...

#include <BasicFiniteElements.hpp>
#include <MixTransportElement.hpp>

Go to the source code of this file.

Classes

struct  BcFluxData
 
struct  MyTransport
 Application of mix transport data structure. More...
 

Typedefs

typedef map< int, BcFluxDataBcFluxMap
 

Functions

int main (int argc, char *argv[])
 

Variables

static char help []
 

Detailed Description

Example implementation of transport problem using mixed formulation.

Todo:
Should be implemented and tested problem from this article Demkowicz, Leszek, and Jayadeep Gopalakrishnan. "Analysis of the DPG method for the Poisson equation." SIAM Journal on Numerical Analysis 49.5 (2011): 1788-1809.

Definition in file h_adaptive_transport.cpp.

Typedef Documentation

◆ BcFluxMap

typedef map<int, BcFluxData> BcFluxMap

Definition at line 34 of file h_adaptive_transport.cpp.

Function Documentation

◆ main()

int main ( int  argc,
char *  argv[] 
)

Definition at line 354 of file h_adaptive_transport.cpp.

354 {
355
356 const string default_options = "-ksp_type fgmres \n"
357 "-pc_type lu \n"
358 "-pc_factor_mat_solver_type mumps \n"
359 "-mat_mumps_icntl_20 0 \n"
360 "-ksp_monitor\n";
361
362 string param_file = "param_file.petsc";
363 if (!static_cast<bool>(ifstream(param_file))) {
364 std::ofstream file(param_file.c_str(), std::ios::ate);
365 if (file.is_open()) {
366 file << default_options;
367 file.close();
368 }
369 }
370
371 MoFEM::Core::Initialize(&argc, &argv, param_file.c_str(), help);
372
373 try {
374
375 moab::Core mb_instance;
376 moab::Interface &moab = mb_instance;
377 int rank;
378 MPI_Comm_rank(PETSC_COMM_WORLD, &rank);
379
380 // get file name form command line
381 PetscBool flg = PETSC_TRUE;
382 char mesh_file_name[255];
383 CHKERR PetscOptionsGetString(PETSC_NULL, PETSC_NULL, "-my_file",
384 mesh_file_name, 255, &flg);
385 if (flg != PETSC_TRUE) {
386 SETERRQ(PETSC_COMM_SELF, MOFEM_INVALID_DATA,
387 "*** ERROR -my_file (MESH FILE NEEDED)");
388 }
389
390 const char *option;
391 option = "";
392 CHKERR moab.load_file(mesh_file_name, 0, option);
393
394 // Create mofem interface
395 MoFEM::Core core(moab);
396 MoFEM::Interface &m_field = core;
397
398 // Add meshsets with material and boundary conditions
399 MeshsetsManager *meshsets_manager_ptr;
400 CHKERR m_field.getInterface(meshsets_manager_ptr);
401 CHKERR meshsets_manager_ptr->setMeshsetFromFile();
402
403 PetscPrintf(PETSC_COMM_WORLD,
404 "Read meshsets add added meshsets for bc.cfg\n");
405 for (_IT_CUBITMESHSETS_FOR_LOOP_(m_field, it)) {
406 PetscPrintf(PETSC_COMM_WORLD, "%s",
407 static_cast<std::ostringstream &>(
408 std::ostringstream().seekp(0) << *it << endl)
409 .str()
410 .c_str());
411 cerr << *it << endl;
412 }
413
414 // set entities bit level
415 BitRefLevel ref_level;
416 ref_level.set(0);
417 CHKERR m_field.getInterface<BitRefManager>()->setBitRefLevelByDim(
418 0, 3, ref_level);
419
420 // set app. order
421 // see Hierarchic Finite Element Bases on Unstructured Tetrahedral Meshes
422 // (Mark Ainsworth & Joe Coyle)
423 PetscInt order;
424 CHKERR PetscOptionsGetInt(PETSC_NULL, PETSC_NULL, "-my_order", &order,
425 &flg);
426 if (flg != PETSC_TRUE) {
427 order = 0;
428 }
429
430 // finite elements
431
432 BcFluxMap bc_flux_map;
433 MyTransport ufe(m_field, bc_flux_map);
434
435 // Initially calculate problem on coarse mesh
436
437 CHKERR ufe.addFields("VALUES", "FLUXES", order);
438 CHKERR ufe.addFiniteElements("FLUXES", "VALUES");
439 // Set boundary conditions
440 CHKERR ufe.addBoundaryElements(ref_level);
441 CHKERR ufe.buildProblem(ref_level);
442 CHKERR ufe.createMatrices();
443 CHKERR ufe.solveLinearProblem();
444 CHKERR ufe.calculateResidual();
445 CHKERR ufe.evaluateError();
446 CHKERR ufe.destroyMatrices();
447 CHKERR ufe.postProc("out_0.h5m");
448
449 int nb_levels = 5; // default number of refinement levels
450 // get number of refinement levels form command line
451 CHKERR PetscOptionsGetInt(PETSC_NULL, PETSC_NULL, "-nb_levels", &nb_levels,
452 PETSC_NULL);
453
454 // refine mesh, solve problem and do it again until number of refinement
455 // levels are exceeded.
456 for (int ll = 1; ll != nb_levels; ll++) {
457 const int nb_levels = ll;
458 CHKERR ufe.squashBits();
459 CHKERR ufe.refineMesh(ufe, nb_levels, order);
460 ref_level = BitRefLevel().set(nb_levels);
461 bc_flux_map.clear();
462 CHKERR ufe.addBoundaryElements(ref_level);
463 CHKERR ufe.buildProblem(ref_level);
464 CHKERR ufe.createMatrices();
465 CHKERR ufe.solveLinearProblem();
466 CHKERR ufe.calculateResidual();
467 CHKERR ufe.evaluateError();
468 CHKERR ufe.destroyMatrices();
469 CHKERR ufe.postProc(
470 static_cast<std::ostringstream &>(std::ostringstream().seekp(0)
471 << "out_" << nb_levels << ".h5m")
472 .str());
473 }
474 }
476
478
479 return 0;
480}
const std::string default_options
std::string param_file
#define CATCH_ERRORS
Catch errors.
Definition: definitions.h:372
@ MOFEM_INVALID_DATA
Definition: definitions.h:36
#define CHKERR
Inline error check.
Definition: definitions.h:535
#define _IT_CUBITMESHSETS_FOR_LOOP_(MESHSET_MANAGER, IT)
Iterator that loops over all the Cubit MeshSets in a moFEM field.
static char help[]
map< int, BcFluxData > BcFluxMap
char mesh_file_name[255]
std::bitset< BITREFLEVEL_SIZE > BitRefLevel
Bit structure attached to each entity identifying to what mesh entity is attached.
Definition: Types.hpp:40
PetscErrorCode PetscOptionsGetInt(PetscOptions *, const char pre[], const char name[], PetscInt *ivalue, PetscBool *set)
PetscErrorCode PetscOptionsGetString(PetscOptions *, const char pre[], const char name[], char str[], size_t size, PetscBool *set)
Managing BitRefLevels.
Core (interface) class.
Definition: Core.hpp:82
static MoFEMErrorCode Initialize(int *argc, char ***args, const char file[], const char help[])
Initializes the MoFEM database PETSc, MOAB and MPI.
Definition: Core.cpp:72
static MoFEMErrorCode Finalize()
Checks for options to be called at the conclusion of the program.
Definition: Core.cpp:112
Deprecated interface functions.
Interface for managing meshsets containing materials and boundary conditions.
MoFEMErrorCode setMeshsetFromFile(const string file_name, const bool clean_file_options=true)
add blocksets reading config file
MoFEMErrorCode getInterface(IFACE *&iface) const
Get interface refernce to pointer of interface.
Application of mix transport data structure.

Variable Documentation

◆ help

char help[]
static
Initial value:
= "-my_file input file"
"-my_order order of approximation"
"-nb_levels number of refinements levels"
"\n\n"

Definition at line 20 of file h_adaptive_transport.cpp.