Dense matrix views

Functions to create views of dense matrices/vectors. More...

Functions
ghost_error	ghost_densemat_view_plain (ghost_densemat *x, void *data, ghost_lidx stride)
	View plain data which is stored with a given stride. More...
ghost_error	ghost_densemat_create_and_view_densemat (ghost_densemat **x, ghost_densemat *src, ghost_lidx nr, ghost_lidx roffs, ghost_lidx nc, ghost_lidx coffs)
	Create a ghost_densemat as a view of compact data of another ghost_densemat. More...
ghost_error	ghost_densemat_create_and_view_densemat_scattered (ghost_densemat **x, ghost_densemat *src, ghost_lidx nr, ghost_lidx *ridx, ghost_lidx nc, ghost_lidx *cidx)
	Create a ghost_densemat as a view of arbitrarily scattered data of another ghost_densemat. More...
ghost_error	ghost_densemat_create_and_view_densemat_cols (ghost_densemat **x, ghost_densemat *src, ghost_lidx nc, ghost_lidx coffs)
	Create a ghost_densemat as a view of compact columns of another ghost_densemat. More...
ghost_error	ghost_densemat_create_and_view_densemat_cols_scattered (ghost_densemat **x, ghost_densemat *src, ghost_lidx nc, ghost_lidx *cidx)
	Create a ghost_densemat as a view of full but scattered columns of another ghost_densemat. More...
ghost_error	ghost_densemat_clone (ghost_densemat **x, ghost_densemat *src, ghost_lidx nc, ghost_lidx coffs)
	Create a ghost_densemat as a clone of another ghost_densemat at a column given offset. More...

Detailed Description

Functions to create views of dense matrices/vectors.

Function Documentation

ghost_error ghost_densemat_clone	(	ghost_densemat **	x,
		ghost_densemat *	src,
		ghost_lidx	nc,
		ghost_lidx	coffs
	)

Create a ghost_densemat as a clone of another ghost_densemat at a column given offset.

Parameters

x	The clone.
src	The source densemat.
nc	The number of columsn of the new densemat.
coffs	The column offset into the source densemat.

Returns

GHOST_SUCCESS on success or an error indicator.

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ghost_error ghost_densemat_create_and_view_densemat	(	ghost_densemat **	x,
		ghost_densemat *	src,
		ghost_lidx	nr,
		ghost_lidx	roffs,
		ghost_lidx	nc,
		ghost_lidx	coffs
	)

Create a ghost_densemat as a view of compact data of another ghost_densemat.

Parameters

x	The resulting scattered view.
src	The source densemat with the data to be viewed.
nr	The number of rows of the new densemat.
roffs	The row offset into the source densemat.
nc	The number of columsn of the new densemat.
coffs	The column offset into the source densemat.

Returns

GHOST_SUCCESS on success or an error indicator.

ghost_error ghost_densemat_create_and_view_densemat_cols	(	ghost_densemat **	x,
		ghost_densemat *	src,
		ghost_lidx	nc,
		ghost_lidx	coffs
	)

Create a ghost_densemat as a view of compact columns of another ghost_densemat.

Parameters

x	The resulting scattered view.
src	The source densemat with the data to be viewed.
nc	The number of columsn of the new densemat.
coffs	The column offset into the source densemat.

Returns

GHOST_SUCCESS on success or an error indicator.

ghost_error ghost_densemat_create_and_view_densemat_cols_scattered	(	ghost_densemat **	x,
		ghost_densemat *	src,
		ghost_lidx	nc,
		ghost_lidx *	cidx
	)

Create a ghost_densemat as a view of full but scattered columns of another ghost_densemat.

Parameters

x	The resulting scattered view.
src	The source densemat with the data to be viewed.
nc	The number of columsn of the new densemat.
cidx	The column indices to be viewed.

Returns

GHOST_SUCCESS on success or an error indicator.

ghost_error ghost_densemat_create_and_view_densemat_scattered	(	ghost_densemat **	x,
		ghost_densemat *	src,
		ghost_lidx	nr,
		ghost_lidx *	ridx,
		ghost_lidx	nc,
		ghost_lidx *	cidx
	)

Create a ghost_densemat as a view of arbitrarily scattered data of another ghost_densemat.

Parameters

x	The resulting scattered view.
src	The source densemat with the data to be viewed.
nr	The number of rows of the new densemat.
ridx	The row indices to be viewed.
nc	The number of columsn of the new densemat.
cidx	The column indices to be viewed.

Returns

GHOST_SUCCESS on success or an error indicator.

ghost_error ghost_densemat_view_plain	(	ghost_densemat *	x,
		void *	data,
		ghost_lidx	stride
	)

View plain data which is stored with a given stride.

Parameters

x	The densemat.
data	Memory location of the data.
stride	Stride of the data.

Returns

GHOST_SUCCESS on success or an error indicator.