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ROMHandler::SaveRomSystem. #16

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merged 1 commit into from
Feb 13, 2024
Merged

ROMHandler::SaveRomSystem. #16

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5 changes: 2 additions & 3 deletions include/rom_handler.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -95,9 +95,6 @@ class ROMHandlerBase
*/
Array<int> rom_varblock_offsets;

CAROM::Vector *reduced_rhs = NULL;
CAROM::Vector *reduced_sol = NULL;

CAROM::Options* rom_options;
CAROM::BasisGenerator *basis_generator;
CAROM::BasisReader *basis_reader;
Expand Down Expand Up @@ -169,6 +166,7 @@ class ROMHandlerBase
virtual void SaveOperator(const std::string input_prefix="") = 0;
virtual void LoadOperatorFromFile(const std::string input_prefix="") = 0;
virtual void SetRomMat(BlockMatrix *input_mat) = 0;
virtual void SaveRomSystem(const std::string &input_prefix, const std::string type="mm") = 0;

virtual void SaveBasisVisualization(const Array<FiniteElementSpace *> &fes, const std::vector<std::string> &var_names) = 0;

Expand Down Expand Up @@ -254,6 +252,7 @@ class MFEMROMHandler : public ROMHandlerBase
virtual void SaveOperator(const std::string input_prefix="");
virtual void LoadOperatorFromFile(const std::string input_prefix="");
virtual void SetRomMat(BlockMatrix *input_mat);
virtual void SaveRomSystem(const std::string &input_prefix, const std::string type="mm");

virtual void SaveBasisVisualization(const Array<FiniteElementSpace *> &fes, const std::vector<std::string> &var_names);

Expand Down
8 changes: 8 additions & 0 deletions src/main_workflow.cpp
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Expand Up @@ -500,6 +500,14 @@ double SingleRun(MPI_Comm comm, const std::string output_file)
else
fom_solve = solveTimer.RealTime();

/* save the ROM system for analysis/debug */
bool save_rom = config.GetOption<bool>("model_reduction/save_linear_system/enabled", false);
if (save_rom)
{
std::string rom_prefix = config.GetRequiredOption<std::string>("model_reduction/save_linear_system/prefix");
rom->SaveRomSystem(rom_prefix);
}

bool compare_sol = config.GetOption<bool>("model_reduction/compare_solution/enabled", false);
bool load_sol = config.GetOption<bool>("model_reduction/compare_solution/load_solution", false);
if (test->UseRom() && compare_sol)
Expand Down
26 changes: 24 additions & 2 deletions src/rom_handler.cpp
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Expand Up @@ -104,8 +104,7 @@ ROMHandlerBase::ROMHandlerBase(

ROMHandlerBase::~ROMHandlerBase()
{
delete reduced_rhs;
delete reduced_sol;
DeletePointers(carom_ref_basis);
}

void ROMHandlerBase::ParseInputs()
Expand Down Expand Up @@ -909,6 +908,29 @@ void MFEMROMHandler::SetRomMat(BlockMatrix *input_mat)
operator_loaded = true;
}

void MFEMROMHandler::SaveRomSystem(const std::string &input_prefix, const std::string type)
{
if (!romMat_mono)
{
assert(romMat);
romMat_mono = romMat->CreateMonolithic();
}
assert(reduced_rhs);
assert(reduced_sol);

PrintVector(*reduced_rhs, input_prefix + "_rhs.txt");
PrintVector(*reduced_sol, input_prefix + "_sol.txt");

std::string matfile = input_prefix + "_mat." + type;
std::ofstream file(matfile.c_str());
if (type == "mm")
romMat_mono->PrintMM(file);
else if (type == "matlab")
romMat_mono->PrintMatlab(file);
else
mfem_error("MFEMROMHandler::SaveRomSystem - unknown matrix format type!\n");
}

void MFEMROMHandler::SaveBasisVisualization(
const Array<FiniteElementSpace *> &fes, const std::vector<std::string> &var_names)
{
Expand Down
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