LIBRPA::envs Namespace Reference

Functions
void	initialize_io (bool redirect_stdout_in=false, const char *filename="LibRPA_output.txt")
	Initialize the IO environment of LibRPA. More...
bool	is_io_initialized ()
	Check the IO environment of LibRPA is correctly initialized.
void	finalize_io ()
	Finalize the IO environment of LibRPA.
void	initialize_mpi (const MPI_Comm &mpi_comm_global_in)
	Initialize the MPI environment of LibRPA. More...
bool	is_mpi_initialized ()
	Check whether the MPI environment of LibRPA is correctly initialized.
void	finalize_mpi ()
	Finalize the MPI environment of LibRPA.

Variables
const char *	source_dir = get_dirname(__FILE__)
	The path of the source code directory.
std::ofstream	ofs
std::ofstream	ofs_myid
	File output stream handler of each process.
bool	redirect_stdout = false
	Control whether to redirect stdout (cout, fmt print) to file.
FILE *	pfile_redirect
	File stream used by fprintf when stdout is redirected.
int	myid_global = 0
	Rank of process in the global communciator.
int	size_global = 1
	Number of processes in the global communciator.
MPI_Comm	mpi_comm_global
	Global communicator.
LIBRPA::MPI_COMM_handler	mpi_comm_global_h
	Handler of the global communicator.
LIBRPA::BLACS_CTXT_handler	blacs_ctxt_global_h
	Handler of the global BLACS context.
std::string	procname = "not-init"
	Name of process.

Detailed Description

Facilities regarding computation envrionment

Function Documentation

initialize_io()

void LIBRPA::envs::initialize_io	(	bool	redirect_stdout_in = false,
		const char *	filename = "LibRPA_output.txt"
	)

Initialize the IO environment of LibRPA.

Parameters

[in]

redirect_stdout_in

flag to control to redirect stdout to file, useful when separating LibRPA output from the main program @pram [in] filename name of file to redirect stdout

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initialize_mpi()

void LIBRPA::envs::initialize_mpi

(

const MPI_Comm &

mpi_comm_global_in

)

Initialize the MPI environment of LibRPA.

Parameters

[in]

mpi_comm_global_in

Global MPI communicator

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