slaswp.f File Reference

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Functions/Subroutines
subroutine	slaswp (N, A, LDA, K1, K2, IPIV, INCX)
	SLASWP performs a series of row interchanges on a general rectangular matrix.

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Function/Subroutine Documentation

subroutine slaswp	(	integer	N,
		real, dimension( lda, * )	A,
		integer	LDA,
		integer	K1,
		integer	K2,
		integer, dimension( * )	IPIV,
		integer	INCX
	)

SLASWP performs a series of row interchanges on a general rectangular matrix.

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Purpose:

 SLASWP performs a series of row interchanges on the matrix A.
 One row interchange is initiated for each of rows K1 through K2 of A.

Parameters:

[in]	N	N is INTEGER The number of columns of the matrix A.
[in,out]	A	A is REAL array, dimension (LDA,N) On entry, the matrix of column dimension N to which the row interchanges will be applied. On exit, the permuted matrix.
[in]	LDA	LDA is INTEGER The leading dimension of the array A.
[in]	K1	K1 is INTEGER The first element of IPIV for which a row interchange will be done.
[in]	K2	K2 is INTEGER The last element of IPIV for which a row interchange will be done.
[in]	IPIV	IPIV is INTEGER array, dimension (K2*abs(INCX)) The vector of pivot indices. Only the elements in positions K1 through K2 of IPIV are accessed. IPIV(K) = L implies rows K and L are to be interchanged.
[in]	INCX	INCX is INTEGER The increment between successive values of IPIV. If IPIV is negative, the pivots are applied in reverse order.

Author:

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Date:

September 2012

Further Details:

  Modified by
   R. C. Whaley, Computer Science Dept., Univ. of Tenn., Knoxville, USA

Definition at line 115 of file slaswp.f.

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