Block sparse row storage matrix of REAL type. More...

#include <fasp_block.h>

Data Fields
INT	ROW
	number of rows of sub-blocks in matrix A, M More...

INT	COL
	number of cols of sub-blocks in matrix A, N More...

INT	NNZ
	number of nonzero sub-blocks in matrix A, NNZ More...

INT	nb
	dimension of each sub-block More...

INT	storage_manner
	storage manner for each sub-block More...

REAL *	val

INT *	IA
	integer array of row pointers, the size is ROW+1 More...

INT *	JA

Detailed Description

Block sparse row storage matrix of REAL type.

Note: This data structure is adapted from the Intel MKL library. Refer to: http://software.intel.com/sites/products/documentation/hpc/mkl/lin/index.htm; Some of the following entries are capitalized to stress that they are for blocks!

Definition at line 34 of file fasp_block.h.

Field Documentation

◆ COL

INT COL

number of cols of sub-blocks in matrix A, N

Definition at line 40 of file fasp_block.h.

◆ IA

INT* IA

integer array of row pointers, the size is ROW+1

Definition at line 60 of file fasp_block.h.

◆ JA

INT* JA

Element i of the integer array columns is the number of the column in the block matrix that contains the i-th non-zero block. The size is NNZ.

Definition at line 64 of file fasp_block.h.

◆ nb

INT nb

dimension of each sub-block

Definition at line 46 of file fasp_block.h.

◆ NNZ

INT NNZ

number of nonzero sub-blocks in matrix A, NNZ

Definition at line 43 of file fasp_block.h.

◆ ROW

INT ROW

number of rows of sub-blocks in matrix A, M

Definition at line 37 of file fasp_block.h.

◆ storage_manner

INT storage_manner

storage manner for each sub-block

Definition at line 49 of file fasp_block.h.

◆ val

REAL* val

A real array that contains the elements of the non-zero blocks of a sparse matrix. The elements are stored block-by-block in row major order. A non-zero block is the block that contains at least one non-zero element. All elements of non-zero blocks are stored, even if some of them is equal to zero. Within each nonzero block elements are stored in row-major order and the size is (NNZ*nb*nb).

Definition at line 57 of file fasp_block.h.

The documentation for this struct was generated from the following file:

fasp_block.h

Data Fields