dolfin::SubSystemsManager Class Reference

#include <SubSystemsManager.h>

Public Member Functions
	SubSystemsManager (const SubSystemsManager &)=delete

Static Public Member Functions
static SubSystemsManager &	singleton ()
static void	init_mpi ()
	Initialise MPI.
static int	init_mpi (int argc, char *argv[], int required_thread_level)
	Initialise MPI with required level of thread support.
static void	init_petsc ()
	Initialize PETSc without command-line arguments.
static void	init_petsc (int argc, char *argv[])
static void	finalize ()
static bool	responsible_mpi ()
static bool	responsible_petsc ()
static bool	mpi_initialized ()
static bool	mpi_finalized ()
static PetscErrorCode	PetscDolfinErrorHandler (MPI_Comm comm, int line, const char *fun, const char *file, PetscErrorCode n, PetscErrorType p, const char *mess, void *ctx)

Public Attributes
std::string	petsc_err_msg
	Last recorded PETSc error message.

Detailed Description

This is a singleton class which manages the initialisation and finalisation of various sub systems, such as MPI and PETSc.

Member Function Documentation

finalize()

void SubSystemsManager::finalize ( )

static

Finalize subsystems. This will be called by the destructor, but in special cases it may be necessary to call finalize() explicitly.

init_petsc()

void SubSystemsManager::init_petsc ( int  argc, char *  argv[]  )

static

Initialize PETSc with command-line arguments. Note that PETSc command-line arguments may also be filtered and sent to PETSc by parameters.parse(argc, argv).

mpi_finalized()

bool SubSystemsManager::mpi_finalized ( )

static

Check if MPI has been finalized (returns true if MPI has been finalised)

mpi_initialized()

bool SubSystemsManager::mpi_initialized ( )

static

Check if MPI has been initialised (returns true if MPI has been initialised, even if it is later finalised)

PetscDolfinErrorHandler()

PetscErrorCode SubSystemsManager::PetscDolfinErrorHandler ( MPI_Comm  comm, int  line, const char *  fun, const char *  file, PetscErrorCode  n, PetscErrorType  p, const char *  mess, void *  ctx  )

static

PETSc error handler. Logs everything known to DOLFIN logging system (with level TRACE) and stores the error message into pests_err_msg member.

responsible_mpi()

bool SubSystemsManager::responsible_mpi ( )

static

Return true if DOLFIN initialised MPI (and is therefore responsible for finalization)

responsible_petsc()

bool SubSystemsManager::responsible_petsc ( )

static

Return true if DOLFIN initialised PETSc (and is therefore responsible for finalization)

singleton()

SubSystemsManager & SubSystemsManager::singleton ( )

static

Singleton instance. Calling this ensures singleton instance of SubSystemsManager is initialized according to the "Construct on First Use" idiom.

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The documentation for this class was generated from the following files:

• /home/fenics/shared/dolfin/dolfin/common/SubSystemsManager.h
• /home/fenics/shared/dolfin/dolfin/common/SubSystemsManager.cpp