pgrid2dclass Module Reference

This class construct a logical 2-D Cartesian processor grid. More...

Data Types
type	pgrid2d

Functions/Subroutines
subroutine	construct_pgrid2d (this, comm, nrow, ncol)
	set up 2-D Cartisian grid. More...
subroutine	getcomm_pgrid2d (this, comm2d, commcol, commrow)
	get 2D, column, and row communicators. More...
subroutine	getpost_pgrid2d (this, mypos, mycolpos, myrowpos)
	get my rank position in 2d, column, and row communicators. More...
subroutine	getsize_pgrid2d (this, totsize, colsize, rowsize)
	get the total number of PEs, PEs in column and row communicators. More...

Detailed Description

This class construct a logical 2-D Cartesian processor grid.

Author

Ji Qiang

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Data Type Documentation

pgrid2dclass::pgrid2d

type pgrid2dclass::pgrid2d

Data Fields
integer	col_comm	comunicator for my col
integer	comm_2d	comunicator for entire grid
integer	my_col	my column number
integer	my_row	my row number
integer	myrank	my rank in the grid comm
integer	np	total number of processors
integer	npcol	number of processors in my col
integer	nprow	number of processors in my row
integer	row_comm	comunicator for my row

Function/Subroutine Documentation

construct_pgrid2d()

subroutine pgrid2dclass::construct_pgrid2d	(	type (pgrid2d), intent(out)	this,
		integer, intent(in)	comm,
		integer, intent(in)	nrow,
		integer, intent(in)	ncol
	)

set up 2-D Cartisian grid.

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getcomm_pgrid2d()

subroutine pgrid2dclass::getcomm_pgrid2d	(	type (pgrid2d), intent(in)	this,
		integer, intent(out)	comm2d,
		integer, intent(out)	commcol,
		integer, intent(out)	commrow
	)

get 2D, column, and row communicators.

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getpost_pgrid2d()

subroutine pgrid2dclass::getpost_pgrid2d	(	type (pgrid2d), intent(in)	this,
		integer, intent(out)	mypos,
		integer, intent(out)	mycolpos,
		integer, intent(out)	myrowpos
	)

get my rank position in 2d, column, and row communicators.

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getsize_pgrid2d()

subroutine pgrid2dclass::getsize_pgrid2d	(	type (pgrid2d), intent(in)	this,
		integer, intent(out)	totsize,
		integer, intent(out)	colsize,
		integer, intent(out)	rowsize
	)

get the total number of PEs, PEs in column and row communicators.

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