version 1.14, 2018/05/29 07:18:13
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version 1.16, 2023/08/07 08:39:16
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*> IPIV is INTEGER array, dimension (N) |
*> IPIV is INTEGER array, dimension (N) |
*> If FACT = 'F', then IPIV is an input argument and on entry |
*> If FACT = 'F', then IPIV is an input argument and on entry |
*> contains the pivot indices from the factorization A = P*L*U |
*> contains the pivot indices from the factorization A = P*L*U |
*> as computed by DGETRF; row i of the matrix was interchanged |
*> as computed by ZGETRF; row i of the matrix was interchanged |
*> with row IPIV(i). |
*> with row IPIV(i). |
*> |
*> |
*> If FACT = 'N', then IPIV is an output argument and on exit |
*> If FACT = 'N', then IPIV is an output argument and on exit |
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*> This also means that the solution X, estimated condition numbers, |
*> This also means that the solution X, estimated condition numbers, |
*> and error bounds could be unreliable. If factorization fails with |
*> and error bounds could be unreliable. If factorization fails with |
*> 0<INFO<=N, then this contains the reciprocal pivot growth factor |
*> 0<INFO<=N, then this contains the reciprocal pivot growth factor |
*> for the leading INFO columns of A. In DGESVX, this quantity is |
*> for the leading INFO columns of A. In ZGESVX, this quantity is |
*> returned in WORK(1). |
*> returned in RWORK(1). |
*> \endverbatim |
*> \endverbatim |
*> |
*> |
*> \param[out] BERR |
*> \param[out] BERR |
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*> information as described below. There currently are up to three |
*> information as described below. There currently are up to three |
*> pieces of information returned for each right-hand side. If |
*> pieces of information returned for each right-hand side. If |
*> componentwise accuracy is not requested (PARAMS(3) = 0.0), then |
*> componentwise accuracy is not requested (PARAMS(3) = 0.0), then |
*> ERR_BNDS_COMP is not accessed. If N_ERR_BNDS .LT. 3, then at most |
*> ERR_BNDS_COMP is not accessed. If N_ERR_BNDS < 3, then at most |
*> the first (:,N_ERR_BNDS) entries are returned. |
*> the first (:,N_ERR_BNDS) entries are returned. |
*> |
*> |
*> The first index in ERR_BNDS_COMP(i,:) corresponds to the ith |
*> The first index in ERR_BNDS_COMP(i,:) corresponds to the ith |
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*> \param[in] NPARAMS |
*> \param[in] NPARAMS |
*> \verbatim |
*> \verbatim |
*> NPARAMS is INTEGER |
*> NPARAMS is INTEGER |
*> Specifies the number of parameters set in PARAMS. If .LE. 0, the |
*> Specifies the number of parameters set in PARAMS. If <= 0, the |
*> PARAMS array is never referenced and default values are used. |
*> PARAMS array is never referenced and default values are used. |
*> \endverbatim |
*> \endverbatim |
*> |
*> |
*> \param[in,out] PARAMS |
*> \param[in,out] PARAMS |
*> \verbatim |
*> \verbatim |
*> PARAMS is DOUBLE PRECISION array, dimension NPARAMS |
*> PARAMS is DOUBLE PRECISION array, dimension NPARAMS |
*> Specifies algorithm parameters. If an entry is .LT. 0.0, then |
*> Specifies algorithm parameters. If an entry is < 0.0, then |
*> that entry will be filled with default value used for that |
*> that entry will be filled with default value used for that |
*> parameter. Only positions up to NPARAMS are accessed; defaults |
*> parameter. Only positions up to NPARAMS are accessed; defaults |
*> are used for higher-numbered parameters. |
*> are used for higher-numbered parameters. |
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*> PARAMS(LA_LINRX_ITREF_I = 1) : Whether to perform iterative |
*> PARAMS(LA_LINRX_ITREF_I = 1) : Whether to perform iterative |
*> refinement or not. |
*> refinement or not. |
*> Default: 1.0D+0 |
*> Default: 1.0D+0 |
*> = 0.0 : No refinement is performed, and no error bounds are |
*> = 0.0: No refinement is performed, and no error bounds are |
*> computed. |
*> computed. |
*> = 1.0 : Use the extra-precise refinement algorithm. |
*> = 1.0: Use the extra-precise refinement algorithm. |
*> (other values are reserved for future use) |
*> (other values are reserved for future use) |
*> |
*> |
*> PARAMS(LA_LINRX_ITHRESH_I = 2) : Maximum number of residual |
*> PARAMS(LA_LINRX_ITHRESH_I = 2) : Maximum number of residual |
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*> \author Univ. of Colorado Denver |
*> \author Univ. of Colorado Denver |
*> \author NAG Ltd. |
*> \author NAG Ltd. |
* |
* |
*> \date April 2012 |
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* |
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*> \ingroup complex16GBsolve |
*> \ingroup complex16GBsolve |
* |
* |
* ===================================================================== |
* ===================================================================== |
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$ ERR_BNDS_NORM, ERR_BNDS_COMP, NPARAMS, PARAMS, |
$ ERR_BNDS_NORM, ERR_BNDS_COMP, NPARAMS, PARAMS, |
$ WORK, RWORK, INFO ) |
$ WORK, RWORK, INFO ) |
* |
* |
* -- LAPACK driver routine (version 3.7.0) -- |
* -- LAPACK driver 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..-- |
* April 2012 |
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* |
* |
* .. Scalar Arguments .. |
* .. Scalar Arguments .. |
CHARACTER EQUED, FACT, TRANS |
CHARACTER EQUED, FACT, TRANS |
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* |
* |
RPVGRW = ZERO |
RPVGRW = ZERO |
* |
* |
* Test the input parameters. PARAMS is not tested until DGERFSX. |
* Test the input parameters. PARAMS is not tested until ZGERFSX. |
* |
* |
IF( .NOT.NOFACT .AND. .NOT.EQUIL .AND. .NOT. |
IF( .NOT.NOFACT .AND. .NOT.EQUIL .AND. .NOT. |
$ LSAME( FACT, 'F' ) ) THEN |
$ LSAME( FACT, 'F' ) ) THEN |