[BACK]Return to dlamswlq.f CVS log [TXT] [DIR] Up to [local] / rpl / lapack / lapack

Diff for /rpl/lapack/lapack/dlamswlq.f between versions 1.2 and 1.6

version 1.2, 2017/06/17 11:06:23 version 1.6, 2023/08/07 08:38:54
Line 1 Line 1
   *> \brief \b DLAMSWLQ
 *  *
 *  Definition:  *  Definition:
 *  ===========  *  ===========
Line 18 Line 19
 *>  *>
 *> \verbatim  *> \verbatim
 *>  *>
 *>    DLAMQRTS overwrites the general real M-by-N matrix C with  *>    DLAMSWLQ overwrites the general real M-by-N matrix C with
 *>  *>
 *>  *>
 *>                    SIDE = 'L'     SIDE = 'R'  *>                    SIDE = 'L'     SIDE = 'R'
Line 49 Line 50
 *> \param[in] M  *> \param[in] M
 *> \verbatim  *> \verbatim
 *>          M is INTEGER  *>          M is INTEGER
 *>          The number of rows of the matrix A.  M >=0.  *>          The number of rows of the matrix C.  M >=0.
 *> \endverbatim  *> \endverbatim
 *>  *>
 *> \param[in] N  *> \param[in] N
 *> \verbatim  *> \verbatim
 *>          N is INTEGER  *>          N is INTEGER
 *>          The number of columns of the matrix C. N >= M.  *>          The number of columns of the matrix C. N >= 0.
 *> \endverbatim  *> \endverbatim
 *>  *>
 *> \param[in] K  *> \param[in] K
Line 69 Line 70
 *> \param[in] MB  *> \param[in] MB
 *> \verbatim  *> \verbatim
 *>          MB is INTEGER  *>          MB is INTEGER
 *>          The row block size to be used in the blocked QR.  *>          The row block size to be used in the blocked LQ.
 *>          M >= MB >= 1  *>          M >= MB >= 1
 *> \endverbatim  *> \endverbatim
 *>  *>
 *> \param[in] NB  *> \param[in] NB
 *> \verbatim  *> \verbatim
 *>          NB is INTEGER  *>          NB is INTEGER
 *>          The column block size to be used in the blocked QR.  *>          The column block size to be used in the blocked LQ.
 *>          NB > M.  *>          NB > M.
 *> \endverbatim  *> \endverbatim
 *>  *>
 *> \param[in] NB  *> \param[in] A
 *> \verbatim  
 *>          NB is INTEGER  
 *>          The block size to be used in the blocked QR.  
 *>                MB > M.  
 *>  
 *> \endverbatim  
 *>  
 *> \param[in,out] A  
 *> \verbatim  *> \verbatim
 *>          A is DOUBLE PRECISION array, dimension (LDA,K)  *>          A is DOUBLE PRECISION array, dimension
   *>                               (LDA,M) if SIDE = 'L',
   *>                               (LDA,N) if SIDE = 'R'
 *>          The i-th row must contain the vector which defines the blocked  *>          The i-th row must contain the vector which defines the blocked
 *>          elementary reflector H(i), for i = 1,2,...,k, as returned by  *>          elementary reflector H(i), for i = 1,2,...,k, as returned by
 *>          DLASWLQ in the first k rows of its array argument A.  *>          DLASWLQ in the first k rows of its array argument A.
Line 99 Line 94
 *> \param[in] LDA  *> \param[in] LDA
 *> \verbatim  *> \verbatim
 *>          LDA is INTEGER  *>          LDA is INTEGER
 *>          The leading dimension of the array A.  *>          The leading dimension of the array A. LDA >= max(1,K).
 *>          If SIDE = 'L', LDA >= max(1,M);  
 *>          if SIDE = 'R', LDA >= max(1,N).  
 *> \endverbatim  *> \endverbatim
 *>  *>
 *> \param[in] T  *> \param[in] T
Line 186 Line 179
 *> stored in columns [(i-1)*(NB-M)+M+1:i*(NB-M)+M] of A, and by upper triangular  *> stored in columns [(i-1)*(NB-M)+M+1:i*(NB-M)+M] of A, and by upper triangular
 *> block reflectors, stored in array T(1:LDT,(i-1)*M+1:i*M).  *> block reflectors, stored in array T(1:LDT,(i-1)*M+1:i*M).
 *> The last Q(k) may use fewer rows.  *> The last Q(k) may use fewer rows.
 *> For more information see Further Details in TPQRT.  *> For more information see Further Details in TPLQT.
 *>  *>
 *> For more details of the overall algorithm, see the description of  *> For more details of the overall algorithm, see the description of
 *> Sequential TSQR in Section 2.2 of [1].  *> Sequential TSQR in Section 2.2 of [1].
Line 200 Line 193
       SUBROUTINE DLAMSWLQ( SIDE, TRANS, M, N, K, MB, NB, A, LDA, T,        SUBROUTINE DLAMSWLQ( SIDE, TRANS, M, N, K, MB, NB, A, LDA, T,
      $    LDT, C, LDC, WORK, LWORK, INFO )       $    LDT, C, LDC, WORK, LWORK, INFO )
 *  *
 *  -- LAPACK computational routine (version 3.7.0) --  *  -- LAPACK computational routine --
 *  -- LAPACK is a software package provided by Univ. of Tennessee,    --  *  -- LAPACK is a software package provided by Univ. of Tennessee,    --
 *  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--  *  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
 *     December 2016  
 *  *
 *     .. Scalar Arguments ..  *     .. Scalar Arguments ..
       CHARACTER         SIDE, TRANS        CHARACTER         SIDE, TRANS
Line 247 Line 239
          INFO = -1           INFO = -1
       ELSE IF( .NOT.TRAN .AND. .NOT.NOTRAN ) THEN        ELSE IF( .NOT.TRAN .AND. .NOT.NOTRAN ) THEN
          INFO = -2           INFO = -2
       ELSE IF( M.LT.0 ) THEN        ELSE IF( K.LT.0 ) THEN
           INFO = -5
         ELSE IF( M.LT.K ) THEN
         INFO = -3          INFO = -3
       ELSE IF( N.LT.0 ) THEN        ELSE IF( N.LT.0 ) THEN
         INFO = -4          INFO = -4
       ELSE IF( K.LT.0 ) THEN        ELSE IF( K.LT.MB .OR. MB.LT.1) THEN
         INFO = -5          INFO = -6
       ELSE IF( LDA.LT.MAX( 1, K ) ) THEN        ELSE IF( LDA.LT.MAX( 1, K ) ) THEN
         INFO = -9          INFO = -9
       ELSE IF( LDT.LT.MAX( 1, MB) ) THEN        ELSE IF( LDT.LT.MAX( 1, MB) ) THEN
Removed from v.1.2  
changed lines
  Added in v.1.6

CVSweb interface <joel.bertrand@systella.fr>