--- rpl/lapack/lapack/dlarfb.f 2012/08/22 09:48:19 1.11 +++ rpl/lapack/lapack/dlarfb.f 2012/12/14 12:30:24 1.12 @@ -1,4 +1,4 @@ -*> \brief \b DLARFB +*> \brief \b DLARFB applies a block reflector or its transpose to a general rectangular matrix. * * =========== DOCUMENTATION =========== * @@ -159,7 +159,7 @@ *> \author Univ. of Colorado Denver *> \author NAG Ltd. * -*> \date November 2011 +*> \date September 2012 * *> \ingroup doubleOTHERauxiliary * @@ -195,10 +195,10 @@ SUBROUTINE DLARFB( SIDE, TRANS, DIRECT, STOREV, M, N, K, V, LDV, $ T, LDT, C, LDC, WORK, LDWORK ) * -* -- LAPACK auxiliary routine (version 3.4.0) -- +* -- LAPACK auxiliary routine (version 3.4.2) -- * -- LAPACK is a software package provided by Univ. of Tennessee, -- * -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..-- -* November 2011 +* September 2012 * * .. Scalar Arguments .. CHARACTER DIRECT, SIDE, STOREV, TRANS @@ -217,7 +217,7 @@ * .. * .. Local Scalars .. CHARACTER TRANST - INTEGER I, J, LASTV, LASTC + INTEGER I, J, LASTV, LASTC, lastv2 * .. * .. External Functions .. LOGICAL LSAME @@ -379,29 +379,28 @@ * Form H * C or H**T * C where C = ( C1 ) * ( C2 ) * - LASTV = MAX( K, ILADLR( M, K, V, LDV ) ) - LASTC = ILADLC( LASTV, N, C, LDC ) + LASTC = ILADLC( M, N, C, LDC ) * * W := C**T * V = (C1**T * V1 + C2**T * V2) (stored in WORK) * * W := C2**T * DO 70 J = 1, K - CALL DCOPY( LASTC, C( LASTV-K+J, 1 ), LDC, + CALL DCOPY( LASTC, C( M-K+J, 1 ), LDC, $ WORK( 1, J ), 1 ) 70 CONTINUE * * W := W * V2 * CALL DTRMM( 'Right', 'Upper', 'No transpose', 'Unit', - $ LASTC, K, ONE, V( LASTV-K+1, 1 ), LDV, + $ LASTC, K, ONE, V( M-K+1, 1 ), LDV, $ WORK, LDWORK ) - IF( LASTV.GT.K ) THEN + IF( M.GT.K ) THEN * * W := W + C1**T*V1 * CALL DGEMM( 'Transpose', 'No transpose', - $ LASTC, K, LASTV-K, ONE, C, LDC, V, LDV, + $ LASTC, K, M-K, ONE, C, LDC, V, LDV, $ ONE, WORK, LDWORK ) END IF * @@ -412,26 +411,26 @@ * * C := C - V * W**T * - IF( LASTV.GT.K ) THEN + IF( M.GT.K ) THEN * * C1 := C1 - V1 * W**T * CALL DGEMM( 'No transpose', 'Transpose', - $ LASTV-K, LASTC, K, -ONE, V, LDV, WORK, LDWORK, + $ M-K, LASTC, K, -ONE, V, LDV, WORK, LDWORK, $ ONE, C, LDC ) END IF * * W := W * V2**T * CALL DTRMM( 'Right', 'Upper', 'Transpose', 'Unit', - $ LASTC, K, ONE, V( LASTV-K+1, 1 ), LDV, + $ LASTC, K, ONE, V( M-K+1, 1 ), LDV, $ WORK, LDWORK ) * * C2 := C2 - W**T * DO 90 J = 1, K DO 80 I = 1, LASTC - C( LASTV-K+J, I ) = C( LASTV-K+J, I ) - WORK(I, J) + C( M-K+J, I ) = C( M-K+J, I ) - WORK(I, J) 80 CONTINUE 90 CONTINUE * @@ -439,8 +438,7 @@ * * Form C * H or C * H**T where C = ( C1 C2 ) * - LASTV = MAX( K, ILADLR( N, K, V, LDV ) ) - LASTC = ILADLR( M, LASTV, C, LDC ) + LASTC = ILADLR( M, N, C, LDC ) * * W := C * V = (C1*V1 + C2*V2) (stored in WORK) * @@ -453,14 +451,14 @@ * W := W * V2 * CALL DTRMM( 'Right', 'Upper', 'No transpose', 'Unit', - $ LASTC, K, ONE, V( LASTV-K+1, 1 ), LDV, + $ LASTC, K, ONE, V( N-K+1, 1 ), LDV, $ WORK, LDWORK ) - IF( LASTV.GT.K ) THEN + IF( N.GT.K ) THEN * * W := W + C1 * V1 * CALL DGEMM( 'No transpose', 'No transpose', - $ LASTC, K, LASTV-K, ONE, C, LDC, V, LDV, + $ LASTC, K, N-K, ONE, C, LDC, V, LDV, $ ONE, WORK, LDWORK ) END IF * @@ -471,26 +469,26 @@ * * C := C - W * V**T * - IF( LASTV.GT.K ) THEN + IF( N.GT.K ) THEN * * C1 := C1 - W * V1**T * CALL DGEMM( 'No transpose', 'Transpose', - $ LASTC, LASTV-K, K, -ONE, WORK, LDWORK, V, LDV, + $ LASTC, N-K, K, -ONE, WORK, LDWORK, V, LDV, $ ONE, C, LDC ) END IF * * W := W * V2**T * CALL DTRMM( 'Right', 'Upper', 'Transpose', 'Unit', - $ LASTC, K, ONE, V( LASTV-K+1, 1 ), LDV, + $ LASTC, K, ONE, V( N-K+1, 1 ), LDV, $ WORK, LDWORK ) * * C2 := C2 - W * DO 120 J = 1, K DO 110 I = 1, LASTC - C( I, LASTV-K+J ) = C( I, LASTV-K+J ) - WORK(I, J) + C( I, N-K+J ) = C( I, N-K+J ) - WORK(I, J) 110 CONTINUE 120 CONTINUE END IF @@ -634,29 +632,28 @@ * Form H * C or H**T * C where C = ( C1 ) * ( C2 ) * - LASTV = MAX( K, ILADLC( K, M, V, LDV ) ) - LASTC = ILADLC( LASTV, N, C, LDC ) + LASTC = ILADLC( M, N, C, LDC ) * * W := C**T * V**T = (C1**T * V1**T + C2**T * V2**T) (stored in WORK) * * W := C2**T * DO 190 J = 1, K - CALL DCOPY( LASTC, C( LASTV-K+J, 1 ), LDC, + CALL DCOPY( LASTC, C( M-K+J, 1 ), LDC, $ WORK( 1, J ), 1 ) 190 CONTINUE * * W := W * V2**T * CALL DTRMM( 'Right', 'Lower', 'Transpose', 'Unit', - $ LASTC, K, ONE, V( 1, LASTV-K+1 ), LDV, + $ LASTC, K, ONE, V( 1, M-K+1 ), LDV, $ WORK, LDWORK ) - IF( LASTV.GT.K ) THEN + IF( M.GT.K ) THEN * * W := W + C1**T * V1**T * CALL DGEMM( 'Transpose', 'Transpose', - $ LASTC, K, LASTV-K, ONE, C, LDC, V, LDV, + $ LASTC, K, M-K, ONE, C, LDC, V, LDV, $ ONE, WORK, LDWORK ) END IF * @@ -667,26 +664,26 @@ * * C := C - V**T * W**T * - IF( LASTV.GT.K ) THEN + IF( M.GT.K ) THEN * * C1 := C1 - V1**T * W**T * CALL DGEMM( 'Transpose', 'Transpose', - $ LASTV-K, LASTC, K, -ONE, V, LDV, WORK, LDWORK, + $ M-K, LASTC, K, -ONE, V, LDV, WORK, LDWORK, $ ONE, C, LDC ) END IF * * W := W * V2 * CALL DTRMM( 'Right', 'Lower', 'No transpose', 'Unit', - $ LASTC, K, ONE, V( 1, LASTV-K+1 ), LDV, + $ LASTC, K, ONE, V( 1, M-K+1 ), LDV, $ WORK, LDWORK ) * * C2 := C2 - W**T * DO 210 J = 1, K DO 200 I = 1, LASTC - C( LASTV-K+J, I ) = C( LASTV-K+J, I ) - WORK(I, J) + C( M-K+J, I ) = C( M-K+J, I ) - WORK(I, J) 200 CONTINUE 210 CONTINUE * @@ -694,29 +691,28 @@ * * Form C * H or C * H**T where C = ( C1 C2 ) * - LASTV = MAX( K, ILADLC( K, N, V, LDV ) ) - LASTC = ILADLR( M, LASTV, C, LDC ) + LASTC = ILADLR( M, N, C, LDC ) * * W := C * V**T = (C1*V1**T + C2*V2**T) (stored in WORK) * * W := C2 * DO 220 J = 1, K - CALL DCOPY( LASTC, C( 1, LASTV-K+J ), 1, + CALL DCOPY( LASTC, C( 1, N-K+J ), 1, $ WORK( 1, J ), 1 ) 220 CONTINUE * * W := W * V2**T * CALL DTRMM( 'Right', 'Lower', 'Transpose', 'Unit', - $ LASTC, K, ONE, V( 1, LASTV-K+1 ), LDV, + $ LASTC, K, ONE, V( 1, N-K+1 ), LDV, $ WORK, LDWORK ) - IF( LASTV.GT.K ) THEN + IF( N.GT.K ) THEN * * W := W + C1 * V1**T * CALL DGEMM( 'No transpose', 'Transpose', - $ LASTC, K, LASTV-K, ONE, C, LDC, V, LDV, + $ LASTC, K, N-K, ONE, C, LDC, V, LDV, $ ONE, WORK, LDWORK ) END IF * @@ -727,26 +723,26 @@ * * C := C - W * V * - IF( LASTV.GT.K ) THEN + IF( N.GT.K ) THEN * * C1 := C1 - W * V1 * CALL DGEMM( 'No transpose', 'No transpose', - $ LASTC, LASTV-K, K, -ONE, WORK, LDWORK, V, LDV, + $ LASTC, N-K, K, -ONE, WORK, LDWORK, V, LDV, $ ONE, C, LDC ) END IF * * W := W * V2 * CALL DTRMM( 'Right', 'Lower', 'No transpose', 'Unit', - $ LASTC, K, ONE, V( 1, LASTV-K+1 ), LDV, + $ LASTC, K, ONE, V( 1, N-K+1 ), LDV, $ WORK, LDWORK ) * * C1 := C1 - W * DO 240 J = 1, K DO 230 I = 1, LASTC - C( I, LASTV-K+J ) = C( I, LASTV-K+J ) - WORK(I, J) + C( I, N-K+J ) = C( I, N-K+J ) - WORK(I, J) 230 CONTINUE 240 CONTINUE *