version 1.16, 2016/08/27 15:34:34
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version 1.20, 2023/08/07 08:39:03
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* |
* |
* =========== DOCUMENTATION =========== |
* =========== DOCUMENTATION =========== |
* |
* |
* Online html documentation available at |
* Online html documentation available at |
* http://www.netlib.org/lapack/explore-html/ |
* http://www.netlib.org/lapack/explore-html/ |
* |
* |
*> \htmlonly |
*> \htmlonly |
*> Download DORMQR + dependencies |
*> Download DORMQR + dependencies |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/dormqr.f"> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/dormqr.f"> |
*> [TGZ]</a> |
*> [TGZ]</a> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/dormqr.f"> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/dormqr.f"> |
*> [ZIP]</a> |
*> [ZIP]</a> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/dormqr.f"> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/dormqr.f"> |
*> [TXT]</a> |
*> [TXT]</a> |
*> \endhtmlonly |
*> \endhtmlonly |
* |
* |
* Definition: |
* Definition: |
* =========== |
* =========== |
* |
* |
* SUBROUTINE DORMQR( SIDE, TRANS, M, N, K, A, LDA, TAU, C, LDC, |
* SUBROUTINE DORMQR( SIDE, TRANS, M, N, K, A, LDA, TAU, C, LDC, |
* WORK, LWORK, INFO ) |
* WORK, LWORK, INFO ) |
* |
* |
* .. Scalar Arguments .. |
* .. Scalar Arguments .. |
* CHARACTER SIDE, TRANS |
* CHARACTER SIDE, TRANS |
* INTEGER INFO, K, LDA, LDC, LWORK, M, N |
* INTEGER INFO, K, LDA, LDC, LWORK, M, N |
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* .. Array Arguments .. |
* .. Array Arguments .. |
* DOUBLE PRECISION A( LDA, * ), C( LDC, * ), TAU( * ), WORK( * ) |
* DOUBLE PRECISION A( LDA, * ), C( LDC, * ), TAU( * ), WORK( * ) |
* .. |
* .. |
* |
* |
* |
* |
*> \par Purpose: |
*> \par Purpose: |
* ============= |
* ============= |
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* Authors: |
* Authors: |
* ======== |
* ======== |
* |
* |
*> \author Univ. of Tennessee |
*> \author Univ. of Tennessee |
*> \author Univ. of California Berkeley |
*> \author Univ. of California Berkeley |
*> \author Univ. of Colorado Denver |
*> \author Univ. of Colorado Denver |
*> \author NAG Ltd. |
*> \author NAG Ltd. |
* |
|
*> \date November 2015 |
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* |
* |
*> \ingroup doubleOTHERcomputational |
*> \ingroup doubleOTHERcomputational |
* |
* |
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SUBROUTINE DORMQR( SIDE, TRANS, M, N, K, A, LDA, TAU, C, LDC, |
SUBROUTINE DORMQR( SIDE, TRANS, M, N, K, A, LDA, TAU, C, LDC, |
$ WORK, LWORK, INFO ) |
$ WORK, LWORK, INFO ) |
* |
* |
* -- LAPACK computational routine (version 3.6.0) -- |
* -- 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..-- |
* November 2015 |
|
* |
* |
* .. Scalar Arguments .. |
* .. Scalar Arguments .. |
CHARACTER SIDE, TRANS |
CHARACTER SIDE, TRANS |
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* |
* |
IF( LEFT ) THEN |
IF( LEFT ) THEN |
NQ = M |
NQ = M |
NW = N |
NW = MAX( 1, N ) |
ELSE |
ELSE |
NQ = N |
NQ = N |
NW = M |
NW = MAX( 1, M ) |
END IF |
END IF |
IF( .NOT.LEFT .AND. .NOT.LSAME( SIDE, 'R' ) ) THEN |
IF( .NOT.LEFT .AND. .NOT.LSAME( SIDE, 'R' ) ) THEN |
INFO = -1 |
INFO = -1 |
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INFO = -7 |
INFO = -7 |
ELSE IF( LDC.LT.MAX( 1, M ) ) THEN |
ELSE IF( LDC.LT.MAX( 1, M ) ) THEN |
INFO = -10 |
INFO = -10 |
ELSE IF( LWORK.LT.MAX( 1, NW ) .AND. .NOT.LQUERY ) THEN |
ELSE IF( LWORK.LT.NW .AND. .NOT.LQUERY ) THEN |
INFO = -12 |
INFO = -12 |
END IF |
END IF |
* |
* |
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* |
* |
NB = MIN( NBMAX, ILAENV( 1, 'DORMQR', SIDE // TRANS, M, N, K, |
NB = MIN( NBMAX, ILAENV( 1, 'DORMQR', SIDE // TRANS, M, N, K, |
$ -1 ) ) |
$ -1 ) ) |
LWKOPT = MAX( 1, NW )*NB + TSIZE |
LWKOPT = NW*NB + TSIZE |
WORK( 1 ) = LWKOPT |
WORK( 1 ) = LWKOPT |
END IF |
END IF |
* |
* |
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NBMIN = 2 |
NBMIN = 2 |
LDWORK = NW |
LDWORK = NW |
IF( NB.GT.1 .AND. NB.LT.K ) THEN |
IF( NB.GT.1 .AND. NB.LT.K ) THEN |
IF( LWORK.LT.NW*NB+TSIZE ) THEN |
IF( LWORK.LT.LWKOPT ) THEN |
NB = (LWORK-TSIZE) / LDWORK |
NB = (LWORK-TSIZE) / LDWORK |
NBMIN = MAX( 2, ILAENV( 2, 'DORMQR', SIDE // TRANS, M, N, K, |
NBMIN = MAX( 2, ILAENV( 2, 'DORMQR', SIDE // TRANS, M, N, K, |
$ -1 ) ) |
$ -1 ) ) |