BLAS1 operations for arrays. More...

#include <math.h>
#include "fasp.h"
#include "fasp_functs.h"

Functions
void	fasp_blas_darray_ax (const INT n, const REAL a, REAL *x)
	x = a*x More...

void	fasp_blas_darray_axpy (const INT n, const REAL a, const REAL x, REAL y)
	y = a*x + y More...

void	fasp_blas_ldarray_axpy (const INT n, const REAL a, const REAL x, LONGREAL y)
	y = a*x + y More...

void	fasp_blas_darray_axpy_nc2 (const REAL a, const REAL x, REAL y)
	y = a*x + y, length of x and y should be 2 More...

void	fasp_blas_darray_axpy_nc3 (const REAL a, const REAL x, REAL y)
	y = a*x + y, length of x and y should be 3 More...

void	fasp_blas_darray_axpy_nc5 (const REAL a, const REAL x, REAL y)
	y = a*x + y, length of x and y should be 5 More...

void	fasp_blas_darray_axpy_nc7 (const REAL a, const REAL x, REAL y)
	y = a*x + y, length of x and y should be 7 More...

void	fasp_blas_darray_axpyz (const INT n, const REAL a, const REAL x, const REAL y, REAL *z)
	z = a*x + y More...

void	fasp_blas_darray_axpyz_nc2 (const REAL a, const REAL x, const REAL y, REAL *z)
	z = a*x + y, length of x, y and z should be 2 More...

void	fasp_blas_darray_axpyz_nc3 (const REAL a, const REAL x, const REAL y, REAL *z)
	z = a*x + y, length of x, y and z should be 3 More...

void	fasp_blas_darray_axpyz_nc5 (const REAL a, const REAL x, const REAL y, REAL *z)
	z = a*x + y, length of x, y and z should be 5 More...

void	fasp_blas_darray_axpyz_nc7 (const REAL a, const REAL x, const REAL y, REAL *z)
	z = a*x + y, length of x, y and z should be 7 More...

void	fasp_blas_darray_axpby (const INT n, const REAL a, const REAL x, const REAL b, REAL y)
	y = ax + by More...

REAL	fasp_blas_darray_norm1 (const INT n, const REAL *x)
	L1 norm of array x. More...

REAL	fasp_blas_darray_norm2 (const INT n, const REAL *x)
	L2 norm of array x. More...

REAL	fasp_blas_darray_norminf (const INT n, const REAL *x)
	Linf norm of array x. More...

REAL	fasp_blas_darray_dotprod (const INT n, const REAL x, const REAL y)
	Inner product of two arraies x and y. More...

Detailed Description

BLAS1 operations for arrays.

Note: This file contains Level-1 (Bla) functions. It requires: AuxThreads.c

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

Definition in file BlaArray.c.

Function Documentation

◆ fasp_blas_darray_ax()

void fasp_blas_darray_ax	(	const INT	n,
		const REAL	a,
		REAL *	x
	)

x = a*x

Parameters

n	Number of variables
a	Factor a
x	Pointer to x

Author: Chensong Zhang

Date: 07/01/2009

Modified by Chunsheng Feng, Xiaoqiang Yue on 05/23/2012

Warning: x is reused to store the resulting array!

Definition at line 43 of file BlaArray.c.

◆ fasp_blas_darray_axpby()

void fasp_blas_darray_axpby	(	const INT	n,
		const REAL	a,
		const REAL *	x,
		const REAL	b,
		REAL *	y
	)

y = a*x + b*y

Parameters

n	Number of variables
a	Factor a
x	Pointer to x
b	Factor b
y	Pointer to y, reused to store the resulting array

Author: Chensong Zhang

Date: 07/01/2009

Modified by Chunsheng Feng, Xiaoqiang Yue on 05/23/2012

Definition at line 620 of file BlaArray.c.

◆ fasp_blas_darray_axpy()

void fasp_blas_darray_axpy	(	const INT	n,
		const REAL	a,
		const REAL *	x,
		REAL *	y
	)

y = a*x + y

Parameters

n	Number of variables
a	Factor a
x	Pointer to x
y	Pointer to y, reused to store the resulting array

Author: Chensong Zhang

Date: 07/01/2009

Modified by Chunsheng Feng, Xiaoqiang Yue on 05/23/2012

Definition at line 90 of file BlaArray.c.

◆ fasp_blas_darray_axpy_nc2()

void fasp_blas_darray_axpy_nc2	(	const REAL	a,
		const REAL *	x,
		REAL *	y
	)

y = a*x + y, length of x and y should be 2

Parameters

a	REAL factor a
x	Pointer to the original array
y	Pointer to the destination array

Author: Xiaozhe Hu

Date: 18/11/2011

Definition at line 234 of file BlaArray.c.

◆ fasp_blas_darray_axpy_nc3()

void fasp_blas_darray_axpy_nc3	(	const REAL	a,
		const REAL *	x,
		REAL *	y
	)

y = a*x + y, length of x and y should be 3

Parameters

a	REAL factor a
x	Pointer to the original array
y	Pointer to the destination array

Author: Xiaozhe Hu, Shiquan Zhang

Date: 05/01/2010

Definition at line 255 of file BlaArray.c.

◆ fasp_blas_darray_axpy_nc5()

void fasp_blas_darray_axpy_nc5	(	const REAL	a,
		const REAL *	x,
		REAL *	y
	)

y = a*x + y, length of x and y should be 5

Parameters

a	REAL factor a
x	Pointer to the original array
y	Pointer to the destination array

Author: Xiaozhe Hu, Shiquan Zhang

Date: 05/01/2010

Definition at line 282 of file BlaArray.c.

◆ fasp_blas_darray_axpy_nc7()

void fasp_blas_darray_axpy_nc7	(	const REAL	a,
		const REAL *	x,
		REAL *	y
	)

y = a*x + y, length of x and y should be 7

Parameters

a	REAL factor a
x	Pointer to the original array
y	Pointer to the destination array

Author: Xiaozhe Hu, Shiquan Zhang

Date: 05/01/2010

Definition at line 327 of file BlaArray.c.

◆ fasp_blas_darray_axpyz()

void fasp_blas_darray_axpyz	(	const INT	n,
		const REAL	a,
		const REAL *	x,
		const REAL *	y,
		REAL *	z
	)

z = a*x + y

Parameters

n	Number of variables
a	Factor a
x	Pointer to x
y	Pointer to y
z	Pointer to z

Author: Chensong Zhang

Date: 07/01/2009

Modified by Chunsheng Feng, Xiaoqiang Yue on 05/23/2012

Definition at line 403 of file BlaArray.c.

◆ fasp_blas_darray_axpyz_nc2()

void fasp_blas_darray_axpyz_nc2	(	const REAL	a,
		const REAL *	x,
		const REAL *	y,
		REAL *	z
	)

z = a*x + y, length of x, y and z should be 2

Parameters

a	REAL factor a
x	Pointer to the original array 1
y	Pointer to the original array 2
z	Pointer to the destination array

Author: Xiaozhe Hu

Date: 18/11/2011

Definition at line 445 of file BlaArray.c.

◆ fasp_blas_darray_axpyz_nc3()

void fasp_blas_darray_axpyz_nc3	(	const REAL	a,
		const REAL *	x,
		const REAL *	y,
		REAL *	z
	)

z = a*x + y, length of x, y and z should be 3

Parameters

a	REAL factor a
x	Pointer to the original array 1
y	Pointer to the original array 2
z	Pointer to the destination array

Author: Xiaozhe Hu, Shiquan Zhang

Date: 05/01/2010

Definition at line 468 of file BlaArray.c.

◆ fasp_blas_darray_axpyz_nc5()

void fasp_blas_darray_axpyz_nc5	(	const REAL	a,
		const REAL *	x,
		const REAL *	y,
		REAL *	z
	)

z = a*x + y, length of x, y and z should be 5

Parameters

a	REAL factor a
x	Pointer to the original array 1
y	Pointer to the original array 2
z	Pointer to the destination array

Author: Xiaozhe Hu, Shiquan Zhang

Date: 05/01/2010

Definition at line 497 of file BlaArray.c.

◆ fasp_blas_darray_axpyz_nc7()

void fasp_blas_darray_axpyz_nc7	(	const REAL	a,
		const REAL *	x,
		const REAL *	y,
		REAL *	z
	)

z = a*x + y, length of x, y and z should be 7

Parameters

a	REAL factor a
x	Pointer to the original array 1
y	Pointer to the original array 2
z	Pointer to the destination array

Author: Xiaozhe Hu, Shiquan Zhang

Date: 05/01/2010

Definition at line 544 of file BlaArray.c.

◆ fasp_blas_darray_dotprod()

REAL fasp_blas_darray_dotprod	(	const INT	n,
		const REAL *	x,
		const REAL *	y
	)

Inner product of two arraies x and y.

Parameters

n	Number of variables
x	Pointer to x
y	Pointer to y

Returns: Inner product (x,y)

Author: Chensong Zhang

Date: 07/01/2009

Modified by Chunsheng Feng, Xiaoqiang Yue on 05/23/2012

Definition at line 771 of file BlaArray.c.

◆ fasp_blas_darray_norm1()

REAL fasp_blas_darray_norm1	(	const INT	n,
		const REAL *	x
	)

L1 norm of array x.

Parameters

n	Number of variables
x	Pointer to x

Returns: L1 norm of x

Author: Chensong Zhang

Date: 07/01/2009

Modified by Chunsheng Feng, Xiaoqiang Yue on 05/23/2012

Definition at line 663 of file BlaArray.c.

◆ fasp_blas_darray_norm2()

REAL fasp_blas_darray_norm2	(	const INT	n,
		const REAL *	x
	)

L2 norm of array x.

Parameters

n	Number of variables
x	Pointer to x

Returns: L2 norm of x

Author: Chensong Zhang

Date: 07/01/2009

Modified by Chunsheng Feng, Xiaoqiang Yue on 05/23/2012

Definition at line 691 of file BlaArray.c.

◆ fasp_blas_darray_norminf()

REAL fasp_blas_darray_norminf	(	const INT	n,
		const REAL *	x
	)

Linf norm of array x.

Parameters

n	Number of variables
x	Pointer to x

Returns: L_inf norm of x

Author: Chensong Zhang

Date: 07/01/2009

Modified by Chunsheng Feng, Zheng Li on 06/28/2012

Definition at line 719 of file BlaArray.c.

◆ fasp_blas_ldarray_axpy()

void fasp_blas_ldarray_axpy	(	const INT	n,
		const REAL	a,
		const REAL *	x,
		LONGREAL *	y
	)

y = a*x + y

Parameters

n	Number of variables
a	Factor a
x	Pointer to x
y	Pointer to y, reused to store the resulting array

Author: Ting Lai

Date: 05/09/2022

Definition at line 163 of file BlaArray.c.

Functions

Detailed Description

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

Function Documentation

◆ fasp_blas_darray_ax()

◆ fasp_blas_darray_axpby()

◆ fasp_blas_darray_axpy()

◆ fasp_blas_darray_axpy_nc2()

◆ fasp_blas_darray_axpy_nc3()

◆ fasp_blas_darray_axpy_nc5()

◆ fasp_blas_darray_axpy_nc7()

◆ fasp_blas_darray_axpyz()

◆ fasp_blas_darray_axpyz_nc2()

◆ fasp_blas_darray_axpyz_nc3()

◆ fasp_blas_darray_axpyz_nc5()

◆ fasp_blas_darray_axpyz_nc7()

◆ fasp_blas_darray_dotprod()

◆ fasp_blas_darray_norm1()

◆ fasp_blas_darray_norm2()

◆ fasp_blas_darray_norminf()

◆ fasp_blas_ldarray_axpy()