version 1.3, 2018/05/29 07:18:20
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version 1.4, 2020/05/21 21:46:05
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* Arguments: |
* Arguments: |
* ========== |
* ========== |
* |
* |
*> \param[in] STAGE |
*> \param[in] STAGE1 |
*> \verbatim |
*> \verbatim |
*> STAGE is CHARACTER*1 |
*> STAGE1 is CHARACTER*1 |
*> = 'N': "No": to mention that the stage 1 of the reduction |
*> = 'N': "No": to mention that the stage 1 of the reduction |
*> from dense to band using the zhetrd_he2hb routine |
*> from dense to band using the zhetrd_he2hb routine |
*> was not called before this routine to reproduce AB. |
*> was not called before this routine to reproduce AB. |
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*> \author Univ. of Colorado Denver |
*> \author Univ. of Colorado Denver |
*> \author NAG Ltd. |
*> \author NAG Ltd. |
* |
* |
*> \date December 2016 |
*> \date November 2017 |
* |
* |
*> \ingroup complex16OTHERcomputational |
*> \ingroup complex16OTHERcomputational |
* |
* |
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* |
* |
IMPLICIT NONE |
IMPLICIT NONE |
* |
* |
* -- LAPACK computational routine (version 3.7.0) -- |
* -- LAPACK computational routine (version 3.8.0) -- |
* -- 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 |
* November 2017 |
* |
* |
* .. Scalar Arguments .. |
* .. Scalar Arguments .. |
CHARACTER STAGE1, UPLO, VECT |
CHARACTER STAGE1, UPLO, VECT |
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COMPLEX*16 TMP |
COMPLEX*16 TMP |
* .. |
* .. |
* .. External Subroutines .. |
* .. External Subroutines .. |
EXTERNAL ZHB2ST_KERNELS, ZLACPY, ZLASET |
EXTERNAL ZHB2ST_KERNELS, ZLACPY, ZLASET, XERBLA |
* .. |
* .. |
* .. Intrinsic Functions .. |
* .. Intrinsic Functions .. |
INTRINSIC MIN, MAX, CEILING, DBLE, REAL |
INTRINSIC MIN, MAX, CEILING, DBLE, REAL |
* .. |
* .. |
* .. External Functions .. |
* .. External Functions .. |
LOGICAL LSAME |
LOGICAL LSAME |
INTEGER ILAENV |
INTEGER ILAENV2STAGE |
EXTERNAL LSAME, ILAENV |
EXTERNAL LSAME, ILAENV2STAGE |
* .. |
* .. |
* .. Executable Statements .. |
* .. Executable Statements .. |
* |
* |
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* |
* |
* Determine the block size, the workspace size and the hous size. |
* Determine the block size, the workspace size and the hous size. |
* |
* |
IB = ILAENV( 18, 'ZHETRD_HB2ST', VECT, N, KD, -1, -1 ) |
IB = ILAENV2STAGE( 2, 'ZHETRD_HB2ST', VECT, N, KD, -1, -1 ) |
LHMIN = ILAENV( 19, 'ZHETRD_HB2ST', VECT, N, KD, IB, -1 ) |
LHMIN = ILAENV2STAGE( 3, 'ZHETRD_HB2ST', VECT, N, KD, IB, -1 ) |
LWMIN = ILAENV( 20, 'ZHETRD_HB2ST', VECT, N, KD, IB, -1 ) |
LWMIN = ILAENV2STAGE( 4, 'ZHETRD_HB2ST', VECT, N, KD, IB, -1 ) |
* |
* |
IF( .NOT.AFTERS1 .AND. .NOT.LSAME( STAGE1, 'N' ) ) THEN |
IF( .NOT.AFTERS1 .AND. .NOT.LSAME( STAGE1, 'N' ) ) THEN |
INFO = -1 |
INFO = -1 |