version 1.9, 2012/12/14 12:30:27
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version 1.15, 2017/06/17 11:06:35
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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 DSYSVXX + dependencies |
*> Download DSYSVXX + dependencies |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/dsysvxx.f"> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/dsysvxx.f"> |
*> [TGZ]</a> |
*> [TGZ]</a> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/dsysvxx.f"> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/dsysvxx.f"> |
*> [ZIP]</a> |
*> [ZIP]</a> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/dsysvxx.f"> |
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/dsysvxx.f"> |
*> [TXT]</a> |
*> [TXT]</a> |
*> \endhtmlonly |
*> \endhtmlonly |
* |
* |
* Definition: |
* Definition: |
* =========== |
* =========== |
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* EQUED, S, B, LDB, X, LDX, RCOND, RPVGRW, BERR, |
* EQUED, S, B, LDB, X, LDX, RCOND, RPVGRW, BERR, |
* N_ERR_BNDS, ERR_BNDS_NORM, ERR_BNDS_COMP, |
* N_ERR_BNDS, ERR_BNDS_NORM, ERR_BNDS_COMP, |
* NPARAMS, PARAMS, WORK, IWORK, INFO ) |
* NPARAMS, PARAMS, WORK, IWORK, INFO ) |
* |
* |
* .. Scalar Arguments .. |
* .. Scalar Arguments .. |
* CHARACTER EQUED, FACT, UPLO |
* CHARACTER EQUED, FACT, UPLO |
* INTEGER INFO, LDA, LDAF, LDB, LDX, N, NRHS, NPARAMS, |
* INTEGER INFO, LDA, LDAF, LDB, LDX, N, NRHS, NPARAMS, |
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* $ ERR_BNDS_NORM( NRHS, * ), |
* $ ERR_BNDS_NORM( NRHS, * ), |
* $ ERR_BNDS_COMP( NRHS, * ) |
* $ ERR_BNDS_COMP( NRHS, * ) |
* .. |
* .. |
* |
* |
* |
* |
*> \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 September 2012 |
*> \date December 2016 |
* |
* |
*> \ingroup doubleSYdriver |
*> \ingroup doubleSYsolve |
* |
* |
* ===================================================================== |
* ===================================================================== |
SUBROUTINE DSYSVXX( FACT, UPLO, N, NRHS, A, LDA, AF, LDAF, IPIV, |
SUBROUTINE DSYSVXX( FACT, UPLO, N, NRHS, A, LDA, AF, LDAF, IPIV, |
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$ N_ERR_BNDS, ERR_BNDS_NORM, ERR_BNDS_COMP, |
$ N_ERR_BNDS, ERR_BNDS_NORM, ERR_BNDS_COMP, |
$ NPARAMS, PARAMS, WORK, IWORK, INFO ) |
$ NPARAMS, PARAMS, WORK, IWORK, INFO ) |
* |
* |
* -- LAPACK driver routine (version 3.4.2) -- |
* -- LAPACK driver routine (version 3.7.0) -- |
* -- 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..-- |
* September 2012 |
* December 2016 |
* |
* |
* .. Scalar Arguments .. |
* .. Scalar Arguments .. |
CHARACTER EQUED, FACT, UPLO |
CHARACTER EQUED, FACT, UPLO |
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DOUBLE PRECISION DLAMCH, DLA_SYRPVGRW |
DOUBLE PRECISION DLAMCH, DLA_SYRPVGRW |
* .. |
* .. |
* .. External Subroutines .. |
* .. External Subroutines .. |
EXTERNAL DSYCON, DSYEQUB, DSYTRF, DSYTRS, |
EXTERNAL DSYEQUB, DSYTRF, DSYTRS, |
$ DLACPY, DLAQSY, XERBLA, DLASCL2, DSYRFSX |
$ DLACPY, DLAQSY, XERBLA, DLASCL2, DSYRFSX |
* .. |
* .. |
* .. Intrinsic Functions .. |
* .. Intrinsic Functions .. |
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INFO = -8 |
INFO = -8 |
ELSE IF( LSAME( FACT, 'F' ) .AND. .NOT. |
ELSE IF( LSAME( FACT, 'F' ) .AND. .NOT. |
$ ( RCEQU .OR. LSAME( EQUED, 'N' ) ) ) THEN |
$ ( RCEQU .OR. LSAME( EQUED, 'N' ) ) ) THEN |
INFO = -9 |
INFO = -10 |
ELSE |
ELSE |
IF ( RCEQU ) THEN |
IF ( RCEQU ) THEN |
SMIN = BIGNUM |
SMIN = BIGNUM |
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SMAX = MAX( SMAX, S( J ) ) |
SMAX = MAX( SMAX, S( J ) ) |
10 CONTINUE |
10 CONTINUE |
IF( SMIN.LE.ZERO ) THEN |
IF( SMIN.LE.ZERO ) THEN |
INFO = -10 |
INFO = -11 |
ELSE IF( N.GT.0 ) THEN |
ELSE IF( N.GT.0 ) THEN |
SCOND = MAX( SMIN, SMLNUM ) / MIN( SMAX, BIGNUM ) |
SCOND = MAX( SMIN, SMLNUM ) / MIN( SMAX, BIGNUM ) |
ELSE |
ELSE |
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END IF |
END IF |
IF( INFO.EQ.0 ) THEN |
IF( INFO.EQ.0 ) THEN |
IF( LDB.LT.MAX( 1, N ) ) THEN |
IF( LDB.LT.MAX( 1, N ) ) THEN |
INFO = -12 |
INFO = -13 |
ELSE IF( LDX.LT.MAX( 1, N ) ) THEN |
ELSE IF( LDX.LT.MAX( 1, N ) ) THEN |
INFO = -14 |
INFO = -15 |
END IF |
END IF |
END IF |
END IF |
END IF |
END IF |