Matrix/vector input/output subroutines. More...

#include "fasp.h"
#include "fasp_functs.h"
#include "hb_io.h"
#include "BlaIOUtil.inl"

Functions
void	fasp_dcsrvec_read1 (const char filename, dCSRmat A, dvector *b)
	Read A and b from a SINGLE disk file. More...

void	fasp_dcsrvec_read2 (const char filemat, const char filerhs, dCSRmat A, dvector b)
	Read A and b from two separate disk files. More...

void	fasp_dcsr_read (const char filename, dCSRmat A)
	Read A from matrix disk file in IJ format. More...

void	fasp_dcoo_read (const char filename, dCSRmat A)
	Read A from matrix disk file in IJ format – indices starting from 0. More...

void	fasp_dcoo_read1 (const char filename, dCSRmat A)
	Read A from matrix disk file in IJ format – indices starting from 1. More...

void	fasp_dcoovec_bin_read (const char fni, const char fnj, const char fna, const char fnb, dCSRmat A, dvector b)
	Read A from matrix disk files in IJ format (three binary files) More...

void	fasp_dcoo_shift_read (const char filename, dCSRmat A)
	Read A from matrix disk file in IJ format – indices starting from 0. More...

void	fasp_dmtx_read (const char filename, dCSRmat A)
	Read A from matrix disk file in MatrixMarket general format. More...

void	fasp_dmtxsym_read (const char filename, dCSRmat A)
	Read A from matrix disk file in MatrixMarket sym format. More...

void	fasp_dstr_read (const char filename, dSTRmat A)
	Read A from a disk file in dSTRmat format. More...

void	fasp_dbsr_read (const char filename, dBSRmat A)
	Read A from a disk file in dBSRmat format. More...

void	fasp_dvecind_read (const char filename, dvector b)
	Read b from matrix disk file. More...

void	fasp_dvec_read (const char filename, dvector b)
	Read b from a disk file in array format. More...

void	fasp_ivecind_read (const char filename, ivector b)
	Read b from matrix disk file. More...

void	fasp_ivec_read (const char filename, ivector b)
	Read b from a disk file in array format. More...

void	fasp_dcsrvec_write1 (const char filename, dCSRmat A, dvector *b)
	Write A and b to a SINGLE disk file. More...

void	fasp_dcsrvec_write2 (const char filemat, const char filerhs, dCSRmat A, dvector b)
	Write A and b to two separate disk files. More...

void	fasp_dcoo_write (const char filename, dCSRmat A)
	Write a matrix to disk file in IJ format (coordinate format) More...

void	fasp_dstr_write (const char filename, dSTRmat A)
	Write a dSTRmat to a disk file. More...

void	fasp_dbsr_print (const char filename, dBSRmat A)
	Print a dBSRmat to a disk file in a readable format. More...

void	fasp_dbsr_write (const char filename, dBSRmat A)
	Write a dBSRmat to a disk file. More...

void	fasp_dvec_write (const char filename, dvector vec)
	Write a dvector to disk file. More...

void	fasp_dvecind_write (const char filename, dvector vec)
	Write a dvector to disk file in coordinate format. More...

void	fasp_ivec_write (const char filename, ivector vec)
	Write a ivector to disk file in coordinate format. More...

void	fasp_dvec_print (const INT n, dvector *u)
	Print first n entries of a vector of REAL type. More...

void	fasp_ivec_print (const INT n, ivector *u)
	Print first n entries of a vector of INT type. More...

void	fasp_dcsr_print (const dCSRmat *A)
	Print out a dCSRmat matrix in coordinate format. More...

void	fasp_dcoo_print (const dCOOmat *A)
	Print out a dCOOmat matrix in coordinate format. More...

void	fasp_dbsr_write_coo (const char filename, const dBSRmat A)
	Print out a dBSRmat matrix in coordinate format for matlab spy. More...

void	fasp_dcsr_write_coo (const char filename, const dCSRmat A)
	Print out a dCSRmat matrix in coordinate format for matlab spy. More...

void	fasp_dcsr_write_mtx (const char filename, const dCSRmat A)
	Print out a dCSRmat matrix in coordinate format for MatrixMarket. More...

void	fasp_dstr_print (const dSTRmat *A)
	Print out a dSTRmat matrix in coordinate format. More...

void	fasp_matrix_read (const char filename, void A)
	Read matrix from different kinds of formats from both ASCII and binary files. More...

void	fasp_matrix_read_bin (const char filename, void A)
	Read matrix in binary format. More...

void	fasp_matrix_write (const char filename, void A, const INT flag)
	write matrix from different kinds of formats from both ASCII and binary files More...

void	fasp_vector_read (const char filerhs, void b)
	Read RHS vector from different kinds of formats in ASCII or binary files. More...

void	fasp_vector_write (const char filerhs, void b, const INT flag)
	write RHS vector from different kinds of formats in both ASCII and binary files More...

void	fasp_hb_read (const char input_file, dCSRmat A, dvector *b)
	Read matrix and right-hans side from a HB format file. More...

Variables
int	ilength

int	dlength

Detailed Description

Matrix/vector input/output subroutines.

Note: Read, write or print a matrix or a vector in various formats; This file contains Level-1 (Bla) functions. It requires: AuxArray.c, AuxConvert.c, AuxMemory.c, AuxMessage.c, AuxVector.c, BlaFormat.c, BlaSparseBSR.c, BlaSparseCOO.c, BlaSparseCSR.c, and BlaSpmvCSR.c

Released under the terms of the GNU Lesser General Public License 3.0 or later.

Definition in file BlaIO.c.

Function Documentation

◆ fasp_dbsr_print()

void fasp_dbsr_print	(	const char *	filename,
		dBSRmat *	A
	)

Print a dBSRmat to a disk file in a readable format.

Parameters

filename	File name for A
A	Pointer to the dBSRmat matrix A

Author: Chensong Zhang

Date: 01/07/2021

Definition at line 1292 of file BlaIO.c.

◆ fasp_dbsr_read()

void fasp_dbsr_read	(	const char *	filename,
		dBSRmat *	A
	)

Read A from a disk file in dBSRmat format.

Parameters

filename	File name for matrix A
A	Pointer to the dBSRmat A

Note

This routine reads a dBSRmat matrix from a disk file in the following format:

File format:

ROW, COL, NNZ
nb: size of each block
storage_manner: storage manner of each block
ROW+1: length of IA
IA(i), i=0:ROW
NNZ: length of JA
JA(i), i=0:NNZ-1
NNZ*nb*nb: length of val
val(i), i=0:NNZ*nb*nb-1

Author: Xiaozhe Hu

Date: 10/29/2010

Definition at line 807 of file BlaIO.c.

◆ fasp_dbsr_write()

void fasp_dbsr_write	(	const char *	filename,
		dBSRmat *	A
	)

Write a dBSRmat to a disk file.

Parameters

filename	File name for A
A	Pointer to the dBSRmat matrix A

Note: The routine writes the specified REAL vector in BSR format. Refer to the reading subroutine fasp_dbsr_read.

Author: Shiquan Zhang

Date: 10/29/2010

Definition at line 1336 of file BlaIO.c.

◆ fasp_dbsr_write_coo()

void fasp_dbsr_write_coo	(	const char *	filename,
		const dBSRmat *	A
	)

Print out a dBSRmat matrix in coordinate format for matlab spy.

Parameters

filename	Name of file to write to
A	Pointer to the dBSRmat matrix A

Author: Chunsheng Feng

Date: 11/14/2013

Modified by Chensong Zhang on 06/14/2014: Fix index problem.

Definition at line 1568 of file BlaIO.c.

◆ fasp_dcoo_print()

void fasp_dcoo_print ( const dCOOmat * A )

Print out a dCOOmat matrix in coordinate format.

Parameters

A	Pointer to the dCOOmat matrix A

Author: Ziteng Wang

Date: 12/24/2012

Definition at line 1545 of file BlaIO.c.

◆ fasp_dcoo_read()

void fasp_dcoo_read	(	const char *	filename,
		dCSRmat *	A
	)

Read A from matrix disk file in IJ format – indices starting from 0.

Parameters

filename	File name for matrix
A	Pointer to the CSR matrix

Note

File format:

nrow ncol nnz % number of rows, number of columns, and nnz
i j a_ij % i, j a_ij in each line

After reading, it converts the matrix to dCSRmat format.

Author: Xuehai Huang, Chensong Zhang

Date: 03/29/2009

Definition at line 332 of file BlaIO.c.

◆ fasp_dcoo_read1()

void fasp_dcoo_read1	(	const char *	filename,
		dCSRmat *	A
	)

Read A from matrix disk file in IJ format – indices starting from 1.

Parameters

filename	File name for matrix
A	Pointer to the CSR matrix

Note

File format:

nrow ncol nnz % number of rows, number of columns, and nnz
i j a_ij % i, j a_ij in each line

Author: Xiaozhe Hu, Chensong Zhang

Date: 03/24/2013

Modified by Chensong Zhang on 01/12/2019: Convert COO to CSR

Definition at line 384 of file BlaIO.c.

◆ fasp_dcoo_shift_read()

void fasp_dcoo_shift_read	(	const char *	filename,
		dCSRmat *	A
	)

Read A from matrix disk file in IJ format – indices starting from 0.

Parameters

filename	File name for matrix
A	Pointer to the CSR matrix

Note

File format:

nrow ncol nnz % number of rows, number of columns, and nnz
i j a_ij % i, j a_ij in each line

i and j suppose to start with index 1!!!

After read in, it shifts the index to C fashion and converts the matrix to dCSRmat format.

Author: Xiaozhe Hu

Date: 04/01/2014

Definition at line 514 of file BlaIO.c.

◆ fasp_dcoo_write()

void fasp_dcoo_write	(	const char *	filename,
		dCSRmat *	A
	)

Write a matrix to disk file in IJ format (coordinate format)

Parameters

A	pointer to the dCSRmat matrix
filename	char for vector file name

Note

The routine writes the specified REAL vector in COO format. Refer to the reading subroutine fasp_dcoo_read.

File format:

The first line of the file gives the number of rows, the number of columns, and the number of nonzeros.
Then gives nonzero values in i j a(i,j) format.

Author: Chensong Zhang

Date: 03/29/2009

Definition at line 1207 of file BlaIO.c.

◆ fasp_dcoovec_bin_read()

void fasp_dcoovec_bin_read	(	const char *	fni,
		const char *	fnj,
		const char *	fna,
		const char *	fnb,
		dCSRmat *	A,
		dvector *	b
	)

Read A from matrix disk files in IJ format (three binary files)

Parameters

fni	File name for matrix i-index
fnj	File name for matrix j-index
fna	File name for matrix values
fnb	File name for vector values
A	Pointer to the CSR matrix
b	Pointer to the vector

Note: After reading, it converts the matrix to dCSRmat format.

Author: Chensong Zhang

Date: 08/27/2022

Definition at line 437 of file BlaIO.c.

◆ fasp_dcsr_print()

void fasp_dcsr_print ( const dCSRmat * A )

Print out a dCSRmat matrix in coordinate format.

Parameters

A	Pointer to the dCSRmat matrix A

Author: Xuehai Huang

Date: 03/29/2009

Definition at line 1523 of file BlaIO.c.

◆ fasp_dcsr_read()

void fasp_dcsr_read	(	const char *	filename,
		dCSRmat *	A
	)

Read A from matrix disk file in IJ format.

Parameters

filename	Char for matrix file name
A	Pointer to the CSR matrix

Author: Ziteng Wang

Date: 12/25/2012

Definition at line 252 of file BlaIO.c.

◆ fasp_dcsr_write_coo()

void fasp_dcsr_write_coo	(	const char *	filename,
		const dCSRmat *	A
	)

Print out a dCSRmat matrix in coordinate format for matlab spy.

Parameters

filename	Name of file to write to
A	Pointer to the dCSRmat matrix A

Author: Chunsheng Feng

Date: 11/14/2013

Note: Output indices start from 1 instead of 0!

Definition at line 1623 of file BlaIO.c.

◆ fasp_dcsr_write_mtx()

void fasp_dcsr_write_mtx	(	const char *	filename,
		const dCSRmat *	A
	)

Print out a dCSRmat matrix in coordinate format for MatrixMarket.

Parameters

filename	Name of file to write to
A	Pointer to the dCSRmat matrix A

Author: Chensong Zhang

Date: 08/28/2022

Note: Output indices start from 1 instead of 0!

Definition at line 1664 of file BlaIO.c.

◆ fasp_dcsrvec_read1()

void fasp_dcsrvec_read1	(	const char *	filename,
		dCSRmat *	A,
		dvector *	b
	)

Read A and b from a SINGLE disk file.

Parameters

filename	File name
A	Pointer to the CSR matrix
b	Pointer to the dvector

Note

This routine reads a dCSRmat matrix and a dvector vector from a single disk file. The difference between this and fasp_dcoovec_read is that this routine support non-square matrices.

File format:

nrow ncol % number of rows and number of columns
ia(j), j=0:nrow % row index
ja(j), j=0:nnz-1 % column index
a(j), j=0:nnz-1 % entry value
n % number of entries
b(j), j=0:n-1 % entry value

Author: Xuehai Huang

Date: 03/29/2009

Modified by Chensong Zhang on 03/14/2012

Definition at line 63 of file BlaIO.c.

◆ fasp_dcsrvec_read2()

void fasp_dcsrvec_read2	(	const char *	filemat,
		const char *	filerhs,
		dCSRmat *	A,
		dvector *	b
	)

Read A and b from two separate disk files.

Parameters

filemat	File name for matrix
filerhs	File name for right-hand side
A	Pointer to the dCSR matrix
b	Pointer to the dvector

Note

This routine reads a dCSRmat matrix and a dvector vector from a disk file.

CSR matrix file format:

nrow % number of columns (rows)
ia(j), j=0:nrow % row index
ja(j), j=0:nnz-1 % column index
a(j), j=0:nnz-1 % entry value

RHS file format:

n % number of entries
b(j), j=0:nrow-1 % entry value

Indices start from 1, NOT 0!!!

Author: Zhiyang Zhou

Date: 2010/08/06

Modified by Chensong Zhang on 2012/01/05

Definition at line 164 of file BlaIO.c.

◆ fasp_dcsrvec_write1()

void fasp_dcsrvec_write1	(	const char *	filename,
		dCSRmat *	A,
		dvector *	b
	)

Write A and b to a SINGLE disk file.

Parameters

filename	File name
A	Pointer to the CSR matrix
b	Pointer to the dvector

Note

This routine writes a dCSRmat matrix and a dvector vector to a single disk file.

File format:

nrow ncol % number of rows and number of columns
ia(j), j=0:nrow % row index
ja(j), j=0:nnz-1 % column index
a(j), j=0:nnz-1 % entry value
n % number of entries
b(j), j=0:n-1 % entry value

Author: Feiteng Huang

Date: 05/19/2012

Modified by Chensong on 12/26/2012

Definition at line 1079 of file BlaIO.c.

◆ fasp_dcsrvec_write2()

void fasp_dcsrvec_write2	(	const char *	filemat,
		const char *	filerhs,
		dCSRmat *	A,
		dvector *	b
	)

Write A and b to two separate disk files.

Parameters

filemat	File name for matrix
filerhs	File name for right-hand side
A	Pointer to the dCSR matrix
b	Pointer to the dvector

Note

This routine writes a dCSRmat matrix and a dvector vector to two disk files.

CSR matrix file format:

nrow % number of columns (rows)
ia(j), j=0:nrow % row index
ja(j), j=0:nnz-1 % column index
a(j), j=0:nnz-1 % entry value

RHS file format:

n % number of entries
b(j), j=0:nrow-1 % entry value

Indices start from 1, NOT 0!!!

Author: Feiteng Huang

Date: 05/19/2012

Definition at line 1145 of file BlaIO.c.

◆ fasp_dmtx_read()

void fasp_dmtx_read	(	const char *	filename,
		dCSRmat *	A
	)

Read A from matrix disk file in MatrixMarket general format.

Parameters

filename	File name for matrix
A	Pointer to the CSR matrix

Note: File format: This routine reads a MatrixMarket general matrix from a mtx file. And it converts the matrix to dCSRmat format. For details of mtx format, please refer to http://math.nist.gov/MatrixMarket/.; Indices start from 1, NOT 0!!!

Author: Chensong Zhang

Date: 09/05/2011

Definition at line 567 of file BlaIO.c.

◆ fasp_dmtxsym_read()

void fasp_dmtxsym_read	(	const char *	filename,
		dCSRmat *	A
	)

Read A from matrix disk file in MatrixMarket sym format.

Parameters

filename	File name for matrix
A	Pointer to the CSR matrix

Note: File format: This routine reads a MatrixMarket symmetric matrix from a mtx file. And it converts the matrix to dCSRmat format. For details of mtx format, please refer to http://math.nist.gov/MatrixMarket/.; Indices start from 1, NOT 0!!!

Author: Chensong Zhang

Date: 09/02/2011

Definition at line 624 of file BlaIO.c.

◆ fasp_dstr_print()

void fasp_dstr_print ( const dSTRmat * A )

Print out a dSTRmat matrix in coordinate format.

Parameters

A	Pointer to the dSTRmat matrix A

Author: Ziteng Wang

Date: 12/24/2012

Definition at line 1701 of file BlaIO.c.

◆ fasp_dstr_read()

void fasp_dstr_read	(	const char *	filename,
		dSTRmat *	A
	)

Read A from a disk file in dSTRmat format.

Parameters

filename	File name for the matrix
A	Pointer to the dSTRmat

Note

This routine reads a dSTRmat matrix from a disk file. After done, it converts the matrix to dCSRmat format.

File format:

nx, ny, nz
nc: number of components
nband: number of bands
n: size of diagonal, you must have diagonal
diag(j), j=0:n-1
offset, length: offset and length of off-diag1
offdiag(j), j=0:length-1

Author: Xuehai Huang

Date: 03/29/2009

Definition at line 699 of file BlaIO.c.

◆ fasp_dstr_write()

void fasp_dstr_write	(	const char *	filename,
		dSTRmat *	A
	)

Write a dSTRmat to a disk file.

Parameters

filename	File name for A
A	Pointer to the dSTRmat matrix A

Note: The routine writes the specified REAL vector in STR format. Refer to the reading subroutine fasp_dstr_read.

Author: Shiquan Zhang

Date: 03/29/2010

Definition at line 1241 of file BlaIO.c.

◆ fasp_dvec_print()

void fasp_dvec_print	(	const INT	n,
		dvector *	u
	)

Print first n entries of a vector of REAL type.

Parameters

n	An interger (if n=0, then print all entries)
u	Pointer to a dvector

Author: Chensong Zhang

Date: 03/29/2009

Definition at line 1482 of file BlaIO.c.

◆ fasp_dvec_read()

void fasp_dvec_read	(	const char *	filename,
		dvector *	b
	)

Read b from a disk file in array format.

Parameters

filename	File name for vector b
b	Pointer to the dvector b (output)

Note

File Format:

nrow
val_j, j=0:nrow-1

Author: Chensong Zhang

Date: 03/29/2009

Definition at line 938 of file BlaIO.c.

◆ fasp_dvec_write()

void fasp_dvec_write	(	const char *	filename,
		dvector *	vec
	)

Write a dvector to disk file.

Parameters

vec	Pointer to the dvector
filename	File name

Author: Xuehai Huang

Date: 03/29/2009

Definition at line 1388 of file BlaIO.c.

◆ fasp_dvecind_read()

void fasp_dvecind_read	(	const char *	filename,
		dvector *	b
	)

Read b from matrix disk file.

Parameters

filename	File name for vector b
b	Pointer to the dvector b (output)

Note

File Format:

nrow
ind_j, val_j, j=0:nrow-1

Because the index is given, order is not important!

Author: Chensong Zhang

Date: 03/29/2009

Definition at line 887 of file BlaIO.c.

◆ fasp_dvecind_write()

void fasp_dvecind_write	(	const char *	filename,
		dvector *	vec
	)

Write a dvector to disk file in coordinate format.

Parameters

vec	Pointer to the dvector
filename	File name

Note

The routine writes the specified REAL vector in IJ format.

The first line of the file is the length of the vector;
After that, each line gives index and value of the entries.

Author: Xuehai Huang

Date: 03/29/2009

Definition at line 1420 of file BlaIO.c.

◆ fasp_hb_read()

fasp_hb_read	(	const char *	input_file,
		dCSRmat *	A,
		dvector *	b
	)

Read matrix and right-hans side from a HB format file.

Parameters

input_file	File name of vector file
A	Pointer to the matrix
b	Pointer to the vector

Note: Modified from the C code hb_io_prb.c by John Burkardt, which is NOT part of the FASP project!

Author: Xiaoehe Hu

Date: 05/30/2014

Definition at line 2206 of file BlaIO.c.

◆ fasp_ivec_print()

void fasp_ivec_print	(	const INT	n,
		ivector *	u
	)

Print first n entries of a vector of INT type.

Parameters

n	An interger (if n=0, then print all entries)
u	Pointer to an ivector

Author: Chensong Zhang

Date: 03/29/2009

Definition at line 1503 of file BlaIO.c.

◆ fasp_ivec_read()

void fasp_ivec_read	(	const char *	filename,
		ivector *	b
	)

Read b from a disk file in array format.

Parameters

filename	File name for vector b
b	Pointer to the dvector b (output)

Note

File Format:

nrow
val_j, j=0:nrow-1

Author: Xuehai Huang

Date: 03/29/2009

Definition at line 1029 of file BlaIO.c.

◆ fasp_ivec_write()

void fasp_ivec_write	(	const char *	filename,
		ivector *	vec
	)

Write a ivector to disk file in coordinate format.

Parameters

vec	Pointer to the dvector
filename	File name

Note

The routine writes the specified INT vector in IJ format.

The first line of the file is the length of the vector;
After that, each line gives index and value of the entries.

Author: Xuehai Huang

Date: 03/29/2009

Definition at line 1452 of file BlaIO.c.

◆ fasp_ivecind_read()

void fasp_ivecind_read	(	const char *	filename,
		ivector *	b
	)

Read b from matrix disk file.

Parameters

filename	File name for vector b
b	Pointer to the dvector b (output)

Note

File Format:

nrow
ind_j, val_j ... j=0:nrow-1

Author: Chensong Zhang

Date: 03/29/2009

Definition at line 989 of file BlaIO.c.

◆ fasp_matrix_read()

fasp_matrix_read	(	const char *	filename,
		void *	A
	)

Read matrix from different kinds of formats from both ASCII and binary files.

Parameters

filename	File name of matrix file
A	Pointer to the matrix

Note

Flags for matrix file format:

fileflag % fileflag = 1: binary, fileflag = 0000: ASCII
formatflag % a 3-digit number for internal use, see below
matrix % different types of matrix

Meaning of formatflag:

matrixflag % first digit of formatflag
- matrixflag = 1: CSR format
- matrixflag = 2: BSR format
- matrixflag = 3: STR format
- matrixflag = 4: COO format
- matrixflag = 5: MTX format
- matrixflag = 6: MTX symmetrical format
ilength % third digit of formatflag, length of INT
dlength % fourth digit of formatflag, length of REAL

Author: Ziteng Wang

Date: 12/24/2012

Modified by Chensong Zhang on 05/01/2013

Definition at line 1735 of file BlaIO.c.

◆ fasp_matrix_read_bin()

void fasp_matrix_read_bin	(	const char *	filename,
		void *	A
	)

Read matrix in binary format.

Parameters

filename	File name of matrix file
A	Pointer to the matrix

Author: Xiaozhe Hu

Date: 04/14/2013

Modified by Chensong Zhang on 05/01/2013: Use it to read binary files!!!

Definition at line 1849 of file BlaIO.c.

◆ fasp_matrix_write()

fasp_matrix_write	(	const char *	filename,
		void *	A,
		const INT	flag
	)

write matrix from different kinds of formats from both ASCII and binary files

Parameters

filename	File name of matrix file
A	Pointer to the matrix
flag	Type of file and matrix, a 3-digit number

Note

Meaning of flag:

fileflag % fileflag = 1: binary, fileflag = 0: ASCII
matrixflag
- matrixflag = 1: CSR format
- matrixflag = 2: BSR format
- matrixflag = 3: STR format

Matrix file format:

fileflag % fileflag = 1: binary, fileflag = 0000: ASCII
formatflag % a 3-digit number
matrixflag % different kinds of matrix judged by formatflag

Author: Ziteng Wang

Date: 12/24/2012

Definition at line 1921 of file BlaIO.c.

◆ fasp_vector_read()

fasp_vector_read	(	const char *	filerhs,
		void *	b
	)

Read RHS vector from different kinds of formats in ASCII or binary files.

Parameters

filerhs	File name of vector file
b	Pointer to the vector

Note

Matrix file format:

fileflag % fileflag = 1: binary, fileflag = 0000: ASCII
formatflag % a 3-digit number
vector % different kinds of vector judged by formatflag

Meaning of formatflag:

vectorflag % first digit of formatflag
- vectorflag = 1: dvec format
- vectorflag = 2: ivec format
- vectorflag = 3: dvecind format
- vectorflag = 4: ivecind format
ilength % second digit of formatflag, length of INT
dlength % third digit of formatflag, length of REAL

Author: Ziteng Wang

Date: 12/24/2012

Definition at line 2011 of file BlaIO.c.

◆ fasp_vector_write()

fasp_vector_write	(	const char *	filerhs,
		void *	b,
		const INT	flag
	)

write RHS vector from different kinds of formats in both ASCII and binary files

Parameters

filerhs	File name of vector file
b	Pointer to the vector
flag	Type of file and vector, a 2-digit number

Note

Meaning of the flags

fileflag % fileflag = 1: binary, fileflag = 0: ASCII
- vectorflag
  - vectorflag = 1: dvec format
  - vectorflag = 2: ivec format
  - vectorflag = 3: dvecind format
  - vectorflag = 4: ivecind format

Matrix file format:

fileflag % fileflag = 1: binary, fileflag = 0000: ASCII
- formatflag % a 2-digit number
vectorflag % different kinds of vector judged by formatflag

Author: Ziteng Wang

Date: 12/24/2012

Modified by Chensong Zhang on 05/02/2013: fix a bug when writing in binary format

Definition at line 2119 of file BlaIO.c.

Variable Documentation

◆ dlength

int dlength

Length of REAL in byte

Definition at line 24 of file BlaIO.c.

◆ ilength

int ilength

Length of INT in byte

Definition at line 23 of file BlaIO.c.

Functions

Variables

Detailed Description

Released under the terms of the GNU Lesser General Public License 3.0 or later.

Function Documentation

◆ fasp_dbsr_print()

◆ fasp_dbsr_read()

◆ fasp_dbsr_write()

◆ fasp_dbsr_write_coo()

◆ fasp_dcoo_print()

◆ fasp_dcoo_read()

◆ fasp_dcoo_read1()

◆ fasp_dcoo_shift_read()

◆ fasp_dcoo_write()

◆ fasp_dcoovec_bin_read()

◆ fasp_dcsr_print()

◆ fasp_dcsr_read()

◆ fasp_dcsr_write_coo()

◆ fasp_dcsr_write_mtx()

◆ fasp_dcsrvec_read1()

◆ fasp_dcsrvec_read2()

◆ fasp_dcsrvec_write1()

◆ fasp_dcsrvec_write2()

◆ fasp_dmtx_read()

◆ fasp_dmtxsym_read()

◆ fasp_dstr_print()

◆ fasp_dstr_read()

◆ fasp_dstr_write()

◆ fasp_dvec_print()

◆ fasp_dvec_read()

◆ fasp_dvec_write()

◆ fasp_dvecind_read()

◆ fasp_dvecind_write()

◆ fasp_hb_read()

◆ fasp_ivec_print()

◆ fasp_ivec_read()

◆ fasp_ivec_write()

◆ fasp_ivecind_read()

◆ fasp_matrix_read()

◆ fasp_matrix_read_bin()

◆ fasp_matrix_write()

◆ fasp_vector_read()

◆ fasp_vector_write()

Variable Documentation

◆ dlength

◆ ilength