tripletmodule Module Reference

A Module For Storing Triplets of Integer, Integer, Double. More...

Data Types
type	triplet_t
	A data type for a triplet of integer, integer, double. As this is related to matrix multiplication, the referencing indices are rows and columns. More...

Functions/Subroutines
pure subroutine, public	settriplet (this, index_column, index_row, point_value)
	For error handling in this module. More...
pure subroutine, public	gettripletvalues (this, index_column, index_row, point_value)
	Get the values of a triplet. More...
pure logical function, public	comparetriplets (tripA, tripB)
	Compare two triplets based on their index values, first by column and second by row. Returns A < B. Used for sorting. More...
integer function, public	getmpitriplettype ()
	Returns an MPI Derived Data Type For A Triplet. We statically store this derived type so that we don't have to recreate it every time this function is called. Thus this functional call should add very little overhead. More...

Variables
logical	set_mpi_triplet_type = .FALSE.
	Flag about whether we've registered an mpi triplet type before.

Detailed Description

A Module For Storing Triplets of Integer, Integer, Double.

Function/Subroutine Documentation

comparetriplets()

pure logical function, public tripletmodule::comparetriplets	(	type(triplet_t), intent(in)	tripA,
		type(triplet_t), intent(in)	tripB
	)

Compare two triplets based on their index values, first by column and second by row. Returns A < B. Used for sorting.

Parameters

[in]	tripA	first triplet.
[in]	tripB	second triplet.

Returns

A < B.

getmpitriplettype()

integer function, public tripletmodule::getmpitriplettype

(

)

Returns an MPI Derived Data Type For A Triplet. We statically store this derived type so that we don't have to recreate it every time this function is called. Thus this functional call should add very little overhead.

Returns

the derived type

gettripletvalues()

pure subroutine, public tripletmodule::gettripletvalues	(	type(triplet_t), intent(in)	this,
		integer, intent(out)	index_column,
		integer, intent(out)	index_row,
		real(ntreal), intent(out)	point_value
	)

Get the values of a triplet.

Parameters

[in]	this	the triplet to extract the values of.
[out]	index_column	column value.
[out]	index_row	row value.
[out]	point_value	actual stored value.

settriplet()

pure subroutine, public tripletmodule::settriplet	(	type(triplet_t), intent(inout)	this,
		integer, intent(in)	index_column,
		integer, intent(in)	index_row,
		real(ntreal), intent(in)	point_value
	)

For error handling in this module.

Set the values of a triplet.

Parameters

[in,out]	this	the triplet to set the values of.
[in]	index_column	the column value.
[in]	index_row	the row value.
[in]	point_value	the value at that point.