version 1.9, 2011/11/21 20:42:50
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version 1.15, 2015/11/26 11:44:15
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*> \author Univ. of Colorado Denver |
*> \author Univ. of Colorado Denver |
*> \author NAG Ltd. |
*> \author NAG Ltd. |
* |
* |
*> \date November 2011 |
*> \date November 2015 |
* |
* |
*> \ingroup doubleGEcomputational |
*> \ingroup doubleGEcomputational |
* |
* |
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* ===================================================================== |
* ===================================================================== |
SUBROUTINE DGEBAL( JOB, N, A, LDA, ILO, IHI, SCALE, INFO ) |
SUBROUTINE DGEBAL( JOB, N, A, LDA, ILO, IHI, SCALE, INFO ) |
* |
* |
* -- LAPACK computational routine (version 3.4.0) -- |
* -- LAPACK computational routine (version 3.6.0) -- |
* -- 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..-- |
* November 2011 |
* November 2015 |
* |
* |
* .. Scalar Arguments .. |
* .. Scalar Arguments .. |
CHARACTER JOB |
CHARACTER JOB |
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* .. External Functions .. |
* .. External Functions .. |
LOGICAL DISNAN, LSAME |
LOGICAL DISNAN, LSAME |
INTEGER IDAMAX |
INTEGER IDAMAX |
DOUBLE PRECISION DLAMCH |
DOUBLE PRECISION DLAMCH, DNRM2 |
EXTERNAL DISNAN, LSAME, IDAMAX, DLAMCH |
EXTERNAL DISNAN, LSAME, IDAMAX, DLAMCH, DNRM2 |
* .. |
* .. |
* .. External Subroutines .. |
* .. External Subroutines .. |
EXTERNAL DSCAL, DSWAP, XERBLA |
EXTERNAL DSCAL, DSWAP, XERBLA |
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* .. Intrinsic Functions .. |
* .. Intrinsic Functions .. |
INTRINSIC ABS, MAX, MIN |
INTRINSIC ABS, MAX, MIN |
* .. |
* .. |
* .. Executable Statements .. |
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* |
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* Test the input parameters |
* Test the input parameters |
* |
* |
INFO = 0 |
INFO = 0 |
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SFMAX1 = ONE / SFMIN1 |
SFMAX1 = ONE / SFMIN1 |
SFMIN2 = SFMIN1*SCLFAC |
SFMIN2 = SFMIN1*SCLFAC |
SFMAX2 = ONE / SFMIN2 |
SFMAX2 = ONE / SFMIN2 |
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* |
140 CONTINUE |
140 CONTINUE |
NOCONV = .FALSE. |
NOCONV = .FALSE. |
* |
* |
DO 200 I = K, L |
DO 200 I = K, L |
C = ZERO |
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R = ZERO |
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* |
* |
DO 150 J = K, L |
C = DNRM2( L-K+1, A( K, I ), 1 ) |
IF( J.EQ.I ) |
R = DNRM2( L-K+1, A( I, K ), LDA ) |
$ GO TO 150 |
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C = C + ABS( A( J, I ) ) |
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R = R + ABS( A( I, J ) ) |
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150 CONTINUE |
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ICA = IDAMAX( L, A( 1, I ), 1 ) |
ICA = IDAMAX( L, A( 1, I ), 1 ) |
CA = ABS( A( ICA, I ) ) |
CA = ABS( A( ICA, I ) ) |
IRA = IDAMAX( N-K+1, A( I, K ), LDA ) |
IRA = IDAMAX( N-K+1, A( I, K ), LDA ) |