blacs_proc_grid_oct_m Module Reference

This module provides the BLACS processor grid. More...

Detailed Description

This module provides the BLACS processor grid.

Data Types
type	blacs_proc_grid_t

Functions/Subroutines
subroutine, public	blacs_proc_grid_init (this, mpi_grp, procdim)
	Initializes a blacs context from an MPI communicator with topological information. More...
subroutine, public	blacs_proc_grid_end (this)
subroutine, public	blacs_proc_grid_copy (cin, cout)
logical pure function, public	blacs_proc_grid_null (this)

Variables
integer	blacs_null_context = -1

Function/Subroutine Documentation

blacs_proc_grid_init()

subroutine, public blacs_proc_grid_oct_m::blacs_proc_grid_init	(	type(blacs_proc_grid_t), intent(inout)	this,
		type(mpi_grp_t), intent(in)	mpi_grp,
		integer, dimension(:), intent(in), optional	procdim
	)

Initializes a blacs context from an MPI communicator with topological information.

Warning

: For the moment this function only works if mpi_grp holds all the nodes of mpi_world.

Definition at line 156 of file blacs_proc_grid.F90.

blacs_proc_grid_end()

subroutine, public blacs_proc_grid_oct_m::blacs_proc_grid_end

(

type(blacs_proc_grid_t), intent(inout)

this

)

Definition at line 169 of file blacs_proc_grid.F90.

blacs_proc_grid_copy()

subroutine, public blacs_proc_grid_oct_m::blacs_proc_grid_copy	(	type(blacs_proc_grid_t), intent(in)	cin,
		type(blacs_proc_grid_t), intent(inout)	cout
	)

Definition at line 188 of file blacs_proc_grid.F90.

blacs_proc_grid_null()

logical pure function, public blacs_proc_grid_oct_m::blacs_proc_grid_null

(

type(blacs_proc_grid_t), intent(in)

this

)

Definition at line 202 of file blacs_proc_grid.F90.

Variable Documentation

blacs_null_context

integer blacs_proc_grid_oct_m::blacs_null_context = -1

private

Definition at line 136 of file blacs_proc_grid.F90.