718 lines
		
	
	
		
			25 KiB
		
	
	
	
		
			Fortran
		
	
	
	
			
		
		
	
	
			718 lines
		
	
	
		
			25 KiB
		
	
	
	
		
			Fortran
		
	
	
	
| *> \brief \b SDRVGE
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| *
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| *  =========== DOCUMENTATION ===========
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| *
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| * Online html documentation available at
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| *            http://www.netlib.org/lapack/explore-html/
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| *
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| *  Definition:
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| *  ===========
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| *
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| *       SUBROUTINE SDRVGE( DOTYPE, NN, NVAL, NRHS, THRESH, TSTERR, NMAX,
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| *                          A, AFAC, ASAV, B, BSAV, X, XACT, S, WORK,
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| *                          RWORK, IWORK, NOUT )
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| *
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| *       .. Scalar Arguments ..
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| *       LOGICAL            TSTERR
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| *       INTEGER            NMAX, NN, NOUT, NRHS
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| *       REAL               THRESH
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| *       ..
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| *       .. Array Arguments ..
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| *       LOGICAL            DOTYPE( * )
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| *       INTEGER            IWORK( * ), NVAL( * )
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| *       REAL               A( * ), AFAC( * ), ASAV( * ), B( * ),
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| *      $                   BSAV( * ), RWORK( * ), S( * ), WORK( * ),
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| *      $                   X( * ), XACT( * )
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| *       ..
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| *
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| *
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| *> \par Purpose:
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| *  =============
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| *>
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| *> \verbatim
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| *>
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| *> SDRVGE tests the driver routines SGESV and -SVX.
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| *> \endverbatim
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| *
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| *  Arguments:
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| *  ==========
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| *
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| *> \param[in] DOTYPE
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| *> \verbatim
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| *>          DOTYPE is LOGICAL array, dimension (NTYPES)
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| *>          The matrix types to be used for testing.  Matrices of type j
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| *>          (for 1 <= j <= NTYPES) are used for testing if DOTYPE(j) =
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| *>          .TRUE.; if DOTYPE(j) = .FALSE., then type j is not used.
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| *> \endverbatim
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| *>
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| *> \param[in] NN
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| *> \verbatim
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| *>          NN is INTEGER
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| *>          The number of values of N contained in the vector NVAL.
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| *> \endverbatim
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| *>
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| *> \param[in] NVAL
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| *> \verbatim
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| *>          NVAL is INTEGER array, dimension (NN)
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| *>          The values of the matrix column dimension N.
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| *> \endverbatim
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| *>
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| *> \param[in] NRHS
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| *> \verbatim
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| *>          NRHS is INTEGER
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| *>          The number of right hand side vectors to be generated for
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| *>          each linear system.
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| *> \endverbatim
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| *>
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| *> \param[in] THRESH
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| *> \verbatim
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| *>          THRESH is REAL
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| *>          The threshold value for the test ratios.  A result is
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| *>          included in the output file if RESULT >= THRESH.  To have
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| *>          every test ratio printed, use THRESH = 0.
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| *> \endverbatim
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| *>
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| *> \param[in] TSTERR
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| *> \verbatim
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| *>          TSTERR is LOGICAL
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| *>          Flag that indicates whether error exits are to be tested.
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| *> \endverbatim
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| *>
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| *> \param[in] NMAX
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| *> \verbatim
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| *>          NMAX is INTEGER
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| *>          The maximum value permitted for N, used in dimensioning the
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| *>          work arrays.
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| *> \endverbatim
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| *>
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| *> \param[out] A
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| *> \verbatim
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| *>          A is REAL array, dimension (NMAX*NMAX)
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| *> \endverbatim
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| *>
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| *> \param[out] AFAC
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| *> \verbatim
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| *>          AFAC is REAL array, dimension (NMAX*NMAX)
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| *> \endverbatim
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| *>
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| *> \param[out] ASAV
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| *> \verbatim
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| *>          ASAV is REAL array, dimension (NMAX*NMAX)
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| *> \endverbatim
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| *>
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| *> \param[out] B
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| *> \verbatim
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| *>          B is REAL array, dimension (NMAX*NRHS)
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| *> \endverbatim
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| *>
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| *> \param[out] BSAV
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| *> \verbatim
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| *>          BSAV is REAL array, dimension (NMAX*NRHS)
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| *> \endverbatim
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| *>
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| *> \param[out] X
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| *> \verbatim
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| *>          X is REAL array, dimension (NMAX*NRHS)
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| *> \endverbatim
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| *>
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| *> \param[out] XACT
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| *> \verbatim
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| *>          XACT is REAL array, dimension (NMAX*NRHS)
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| *> \endverbatim
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| *>
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| *> \param[out] S
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| *> \verbatim
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| *>          S is REAL array, dimension (2*NMAX)
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| *> \endverbatim
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| *>
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| *> \param[out] WORK
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| *> \verbatim
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| *>          WORK is REAL array, dimension
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| *>                      (NMAX*max(3,NRHS))
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| *> \endverbatim
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| *>
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| *> \param[out] RWORK
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| *> \verbatim
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| *>          RWORK is REAL array, dimension (2*NRHS+NMAX)
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| *> \endverbatim
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| *>
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| *> \param[out] IWORK
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| *> \verbatim
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| *>          IWORK is INTEGER array, dimension (2*NMAX)
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| *> \endverbatim
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| *>
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| *> \param[in] NOUT
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| *> \verbatim
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| *>          NOUT is INTEGER
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| *>          The unit number for output.
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| *> \endverbatim
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| *
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| *  Authors:
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| *  ========
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| *
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| *> \author Univ. of Tennessee
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| *> \author Univ. of California Berkeley
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| *> \author Univ. of Colorado Denver
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| *> \author NAG Ltd.
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| *
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| *> \date December 2016
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| *
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| *> \ingroup single_lin
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| *
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| *  =====================================================================
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|       SUBROUTINE SDRVGE( DOTYPE, NN, NVAL, NRHS, THRESH, TSTERR, NMAX,
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|      $                   A, AFAC, ASAV, B, BSAV, X, XACT, S, WORK,
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|      $                   RWORK, IWORK, NOUT )
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| *
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| *  -- LAPACK test routine (version 3.7.0) --
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| *  -- LAPACK is a software package provided by Univ. of Tennessee,    --
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| *  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
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| *     December 2016
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| *
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| *     .. Scalar Arguments ..
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|       LOGICAL            TSTERR
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|       INTEGER            NMAX, NN, NOUT, NRHS
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|       REAL               THRESH
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| *     ..
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| *     .. Array Arguments ..
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|       LOGICAL            DOTYPE( * )
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|       INTEGER            IWORK( * ), NVAL( * )
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|       REAL               A( * ), AFAC( * ), ASAV( * ), B( * ),
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|      $                   BSAV( * ), RWORK( * ), S( * ), WORK( * ),
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|      $                   X( * ), XACT( * )
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| *     ..
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| *
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| *  =====================================================================
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| *
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| *     .. Parameters ..
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|       REAL               ONE, ZERO
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|       PARAMETER          ( ONE = 1.0E+0, ZERO = 0.0E+0 )
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|       INTEGER            NTYPES
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|       PARAMETER          ( NTYPES = 11 )
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|       INTEGER            NTESTS
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|       PARAMETER          ( NTESTS = 7 )
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|       INTEGER            NTRAN
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|       PARAMETER          ( NTRAN = 3 )
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| *     ..
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| *     .. Local Scalars ..
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|       LOGICAL            EQUIL, NOFACT, PREFAC, TRFCON, ZEROT
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|       CHARACTER          DIST, EQUED, FACT, TRANS, TYPE, XTYPE
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|       CHARACTER*3        PATH
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|       INTEGER            I, IEQUED, IFACT, IMAT, IN, INFO, IOFF, ITRAN,
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|      $                   IZERO, K, K1, KL, KU, LDA, LWORK, MODE, N, NB,
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|      $                   NBMIN, NERRS, NFACT, NFAIL, NIMAT, NRUN, NT
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|       REAL               AINVNM, AMAX, ANORM, ANORMI, ANORMO, CNDNUM,
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|      $                   COLCND, RCOND, RCONDC, RCONDI, RCONDO, ROLDC,
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|      $                   ROLDI, ROLDO, ROWCND, RPVGRW
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| *     ..
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| *     .. Local Arrays ..
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|       CHARACTER          EQUEDS( 4 ), FACTS( 3 ), TRANSS( NTRAN )
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|       INTEGER            ISEED( 4 ), ISEEDY( 4 )
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|       REAL               RESULT( NTESTS )
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| *     ..
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| *     .. External Functions ..
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|       LOGICAL            LSAME
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|       REAL               SGET06, SLAMCH, SLANGE, SLANTR
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|       EXTERNAL           LSAME, SGET06, SLAMCH, SLANGE, SLANTR
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| *     ..
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| *     .. External Subroutines ..
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|       EXTERNAL           ALADHD, ALAERH, ALASVM, SERRVX, SGEEQU, SGESV,
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|      $                   SGESVX, SGET01, SGET02, SGET04, SGET07, SGETRF,
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|      $                   SGETRI, SLACPY, SLAQGE, SLARHS, SLASET, SLATB4,
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|      $                   SLATMS, XLAENV
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| *     ..
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| *     .. Intrinsic Functions ..
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|       INTRINSIC          ABS, MAX
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| *     ..
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| *     .. Scalars in Common ..
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|       LOGICAL            LERR, OK
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|       CHARACTER*32       SRNAMT
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|       INTEGER            INFOT, NUNIT
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| *     ..
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| *     .. Common blocks ..
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|       COMMON             / INFOC / INFOT, NUNIT, OK, LERR
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|       COMMON             / SRNAMC / SRNAMT
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| *     ..
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| *     .. Data statements ..
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|       DATA               ISEEDY / 1988, 1989, 1990, 1991 /
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|       DATA               TRANSS / 'N', 'T', 'C' /
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|       DATA               FACTS / 'F', 'N', 'E' /
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|       DATA               EQUEDS / 'N', 'R', 'C', 'B' /
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| *     ..
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| *     .. Executable Statements ..
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| *
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| *     Initialize constants and the random number seed.
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| *
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|       PATH( 1: 1 ) = 'Single precision'
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|       PATH( 2: 3 ) = 'GE'
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|       NRUN = 0
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|       NFAIL = 0
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|       NERRS = 0
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|       DO 10 I = 1, 4
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|          ISEED( I ) = ISEEDY( I )
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|    10 CONTINUE
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| *
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| *     Test the error exits
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| *
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|       IF( TSTERR )
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|      $   CALL SERRVX( PATH, NOUT )
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|       INFOT = 0
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| *
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| *     Set the block size and minimum block size for testing.
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| *
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|       NB = 1
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|       NBMIN = 2
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|       CALL XLAENV( 1, NB )
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|       CALL XLAENV( 2, NBMIN )
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| *
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| *     Do for each value of N in NVAL
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| *
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|       DO 90 IN = 1, NN
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|          N = NVAL( IN )
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|          LDA = MAX( N, 1 )
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|          XTYPE = 'N'
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|          NIMAT = NTYPES
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|          IF( N.LE.0 )
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|      $      NIMAT = 1
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| *
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|          DO 80 IMAT = 1, NIMAT
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| *
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| *           Do the tests only if DOTYPE( IMAT ) is true.
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| *
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|             IF( .NOT.DOTYPE( IMAT ) )
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|      $         GO TO 80
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| *
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| *           Skip types 5, 6, or 7 if the matrix size is too small.
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| *
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|             ZEROT = IMAT.GE.5 .AND. IMAT.LE.7
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|             IF( ZEROT .AND. N.LT.IMAT-4 )
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|      $         GO TO 80
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| *
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| *           Set up parameters with SLATB4 and generate a test matrix
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| *           with SLATMS.
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| *
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|             CALL SLATB4( PATH, IMAT, N, N, TYPE, KL, KU, ANORM, MODE,
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|      $                   CNDNUM, DIST )
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|             RCONDC = ONE / CNDNUM
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| *
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|             SRNAMT = 'SLATMS'
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|             CALL SLATMS( N, N, DIST, ISEED, TYPE, RWORK, MODE, CNDNUM,
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|      $                   ANORM, KL, KU, 'No packing', A, LDA, WORK,
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|      $                   INFO )
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| *
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| *           Check error code from SLATMS.
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| *
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|             IF( INFO.NE.0 ) THEN
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|                CALL ALAERH( PATH, 'SLATMS', INFO, 0, ' ', N, N, -1, -1,
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|      $                      -1, IMAT, NFAIL, NERRS, NOUT )
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|                GO TO 80
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|             END IF
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| *
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| *           For types 5-7, zero one or more columns of the matrix to
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| *           test that INFO is returned correctly.
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| *
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|             IF( ZEROT ) THEN
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|                IF( IMAT.EQ.5 ) THEN
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|                   IZERO = 1
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|                ELSE IF( IMAT.EQ.6 ) THEN
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|                   IZERO = N
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|                ELSE
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|                   IZERO = N / 2 + 1
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|                END IF
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|                IOFF = ( IZERO-1 )*LDA
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|                IF( IMAT.LT.7 ) THEN
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|                   DO 20 I = 1, N
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|                      A( IOFF+I ) = ZERO
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|    20             CONTINUE
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|                ELSE
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|                   CALL SLASET( 'Full', N, N-IZERO+1, ZERO, ZERO,
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|      $                         A( IOFF+1 ), LDA )
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|                END IF
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|             ELSE
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|                IZERO = 0
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|             END IF
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| *
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| *           Save a copy of the matrix A in ASAV.
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| *
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|             CALL SLACPY( 'Full', N, N, A, LDA, ASAV, LDA )
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| *
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|             DO 70 IEQUED = 1, 4
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|                EQUED = EQUEDS( IEQUED )
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|                IF( IEQUED.EQ.1 ) THEN
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|                   NFACT = 3
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|                ELSE
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|                   NFACT = 1
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|                END IF
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| *
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|                DO 60 IFACT = 1, NFACT
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|                   FACT = FACTS( IFACT )
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|                   PREFAC = LSAME( FACT, 'F' )
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|                   NOFACT = LSAME( FACT, 'N' )
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|                   EQUIL = LSAME( FACT, 'E' )
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| *
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|                   IF( ZEROT ) THEN
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|                      IF( PREFAC )
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|      $                  GO TO 60
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|                      RCONDO = ZERO
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|                      RCONDI = ZERO
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| *
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|                   ELSE IF( .NOT.NOFACT ) THEN
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| *
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| *                    Compute the condition number for comparison with
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| *                    the value returned by SGESVX (FACT = 'N' reuses
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| *                    the condition number from the previous iteration
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| *                    with FACT = 'F').
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| *
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|                      CALL SLACPY( 'Full', N, N, ASAV, LDA, AFAC, LDA )
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|                      IF( EQUIL .OR. IEQUED.GT.1 ) THEN
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| *
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| *                       Compute row and column scale factors to
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| *                       equilibrate the matrix A.
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| *
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|                         CALL SGEEQU( N, N, AFAC, LDA, S, S( N+1 ),
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|      $                               ROWCND, COLCND, AMAX, INFO )
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|                         IF( INFO.EQ.0 .AND. N.GT.0 ) THEN
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|                            IF( LSAME( EQUED, 'R' ) ) THEN
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|                               ROWCND = ZERO
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|                               COLCND = ONE
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|                            ELSE IF( LSAME( EQUED, 'C' ) ) THEN
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|                               ROWCND = ONE
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|                               COLCND = ZERO
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|                            ELSE IF( LSAME( EQUED, 'B' ) ) THEN
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|                               ROWCND = ZERO
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|                               COLCND = ZERO
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|                            END IF
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| *
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| *                          Equilibrate the matrix.
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| *
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|                            CALL SLAQGE( N, N, AFAC, LDA, S, S( N+1 ),
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|      $                                  ROWCND, COLCND, AMAX, EQUED )
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|                         END IF
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|                      END IF
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| *
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| *                    Save the condition number of the non-equilibrated
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| *                    system for use in SGET04.
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| *
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|                      IF( EQUIL ) THEN
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|                         ROLDO = RCONDO
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|                         ROLDI = RCONDI
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|                      END IF
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| *
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| *                    Compute the 1-norm and infinity-norm of A.
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| *
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|                      ANORMO = SLANGE( '1', N, N, AFAC, LDA, RWORK )
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|                      ANORMI = SLANGE( 'I', N, N, AFAC, LDA, RWORK )
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| *
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| *                    Factor the matrix A.
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| *
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|                      SRNAMT = 'SGETRF'
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|                      CALL SGETRF( N, N, AFAC, LDA, IWORK, INFO )
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| *
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| *                    Form the inverse of A.
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| *
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|                      CALL SLACPY( 'Full', N, N, AFAC, LDA, A, LDA )
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|                      LWORK = NMAX*MAX( 3, NRHS )
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|                      SRNAMT = 'SGETRI'
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|                      CALL SGETRI( N, A, LDA, IWORK, WORK, LWORK, INFO )
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| *
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| *                    Compute the 1-norm condition number of A.
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| *
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|                      AINVNM = SLANGE( '1', N, N, A, LDA, RWORK )
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|                      IF( ANORMO.LE.ZERO .OR. AINVNM.LE.ZERO ) THEN
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|                         RCONDO = ONE
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|                      ELSE
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|                         RCONDO = ( ONE / ANORMO ) / AINVNM
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|                      END IF
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| *
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| *                    Compute the infinity-norm condition number of A.
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| *
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|                      AINVNM = SLANGE( 'I', N, N, A, LDA, RWORK )
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|                      IF( ANORMI.LE.ZERO .OR. AINVNM.LE.ZERO ) THEN
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|                         RCONDI = ONE
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|                      ELSE
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|                         RCONDI = ( ONE / ANORMI ) / AINVNM
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|                      END IF
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|                   END IF
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| *
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|                   DO 50 ITRAN = 1, NTRAN
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| *
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| *                    Do for each value of TRANS.
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| *
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|                      TRANS = TRANSS( ITRAN )
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|                      IF( ITRAN.EQ.1 ) THEN
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|                         RCONDC = RCONDO
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|                      ELSE
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|                         RCONDC = RCONDI
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|                      END IF
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| *
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| *                    Restore the matrix A.
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| *
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|                      CALL SLACPY( 'Full', N, N, ASAV, LDA, A, LDA )
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| *
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| *                    Form an exact solution and set the right hand side.
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| *
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|                      SRNAMT = 'SLARHS'
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|                      CALL SLARHS( PATH, XTYPE, 'Full', TRANS, N, N, KL,
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|      $                            KU, NRHS, A, LDA, XACT, LDA, B, LDA,
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|      $                            ISEED, INFO )
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|                      XTYPE = 'C'
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|                      CALL SLACPY( 'Full', N, NRHS, B, LDA, BSAV, LDA )
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| *
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|                      IF( NOFACT .AND. ITRAN.EQ.1 ) THEN
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| *
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| *                       --- Test SGESV  ---
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| *
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| *                       Compute the LU factorization of the matrix and
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| *                       solve the system.
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| *
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|                         CALL SLACPY( 'Full', N, N, A, LDA, AFAC, LDA )
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|                         CALL SLACPY( 'Full', N, NRHS, B, LDA, X, LDA )
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| *
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|                         SRNAMT = 'SGESV '
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|                         CALL SGESV( N, NRHS, AFAC, LDA, IWORK, X, LDA,
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|      $                              INFO )
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| *
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| *                       Check error code from SGESV .
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| *
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|                         IF( INFO.NE.IZERO )
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|      $                     CALL ALAERH( PATH, 'SGESV ', INFO, IZERO,
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|      $                                  ' ', N, N, -1, -1, NRHS, IMAT,
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|      $                                  NFAIL, NERRS, NOUT )
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| *
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| *                       Reconstruct matrix from factors and compute
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| *                       residual.
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| *
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|                         CALL SGET01( N, N, A, LDA, AFAC, LDA, IWORK,
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|      $                               RWORK, RESULT( 1 ) )
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|                         NT = 1
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|                         IF( IZERO.EQ.0 ) THEN
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| *
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| *                          Compute residual of the computed solution.
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| *
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|                            CALL SLACPY( 'Full', N, NRHS, B, LDA, WORK,
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|      $                                  LDA )
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|                            CALL SGET02( 'No transpose', N, N, NRHS, A,
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|      $                                  LDA, X, LDA, WORK, LDA, RWORK,
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|      $                                  RESULT( 2 ) )
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| *
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| *                          Check solution from generated exact solution.
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| *
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|                            CALL SGET04( N, NRHS, X, LDA, XACT, LDA,
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|      $                                  RCONDC, RESULT( 3 ) )
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|                            NT = 3
 | |
|                         END IF
 | |
| *
 | |
| *                       Print information about the tests that did not
 | |
| *                       pass the threshold.
 | |
| *
 | |
|                         DO 30 K = 1, NT
 | |
|                            IF( RESULT( K ).GE.THRESH ) THEN
 | |
|                               IF( NFAIL.EQ.0 .AND. NERRS.EQ.0 )
 | |
|      $                           CALL ALADHD( NOUT, PATH )
 | |
|                               WRITE( NOUT, FMT = 9999 )'SGESV ', N,
 | |
|      $                           IMAT, K, RESULT( K )
 | |
|                               NFAIL = NFAIL + 1
 | |
|                            END IF
 | |
|    30                   CONTINUE
 | |
|                         NRUN = NRUN + NT
 | |
|                      END IF
 | |
| *
 | |
| *                    --- Test SGESVX ---
 | |
| *
 | |
|                      IF( .NOT.PREFAC )
 | |
|      $                  CALL SLASET( 'Full', N, N, ZERO, ZERO, AFAC,
 | |
|      $                               LDA )
 | |
|                      CALL SLASET( 'Full', N, NRHS, ZERO, ZERO, X, LDA )
 | |
|                      IF( IEQUED.GT.1 .AND. N.GT.0 ) THEN
 | |
| *
 | |
| *                       Equilibrate the matrix if FACT = 'F' and
 | |
| *                       EQUED = 'R', 'C', or 'B'.
 | |
| *
 | |
|                         CALL SLAQGE( N, N, A, LDA, S, S( N+1 ), ROWCND,
 | |
|      $                               COLCND, AMAX, EQUED )
 | |
|                      END IF
 | |
| *
 | |
| *                    Solve the system and compute the condition number
 | |
| *                    and error bounds using SGESVX.
 | |
| *
 | |
|                      SRNAMT = 'SGESVX'
 | |
|                      CALL SGESVX( FACT, TRANS, N, NRHS, A, LDA, AFAC,
 | |
|      $                            LDA, IWORK, EQUED, S, S( N+1 ), B,
 | |
|      $                            LDA, X, LDA, RCOND, RWORK,
 | |
|      $                            RWORK( NRHS+1 ), WORK, IWORK( N+1 ),
 | |
|      $                            INFO )
 | |
| *
 | |
| *                    Check the error code from SGESVX.
 | |
| *
 | |
|                      IF( INFO.NE.IZERO )
 | |
|      $                  CALL ALAERH( PATH, 'SGESVX', INFO, IZERO,
 | |
|      $                               FACT // TRANS, N, N, -1, -1, NRHS,
 | |
|      $                               IMAT, NFAIL, NERRS, NOUT )
 | |
| *
 | |
| *                    Compare WORK(1) from SGESVX with the computed
 | |
| *                    reciprocal pivot growth factor RPVGRW
 | |
| *
 | |
|                      IF( INFO.NE.0 .AND. INFO.LE.N) THEN
 | |
|                         RPVGRW = SLANTR( 'M', 'U', 'N', INFO, INFO,
 | |
|      $                           AFAC, LDA, WORK )
 | |
|                         IF( RPVGRW.EQ.ZERO ) THEN
 | |
|                            RPVGRW = ONE
 | |
|                         ELSE
 | |
|                            RPVGRW = SLANGE( 'M', N, INFO, A, LDA,
 | |
|      $                              WORK ) / RPVGRW
 | |
|                         END IF
 | |
|                      ELSE
 | |
|                         RPVGRW = SLANTR( 'M', 'U', 'N', N, N, AFAC, LDA,
 | |
|      $                           WORK )
 | |
|                         IF( RPVGRW.EQ.ZERO ) THEN
 | |
|                            RPVGRW = ONE
 | |
|                         ELSE
 | |
|                            RPVGRW = SLANGE( 'M', N, N, A, LDA, WORK ) /
 | |
|      $                              RPVGRW
 | |
|                         END IF
 | |
|                      END IF
 | |
|                      RESULT( 7 ) = ABS( RPVGRW-WORK( 1 ) ) /
 | |
|      $                             MAX( WORK( 1 ), RPVGRW ) /
 | |
|      $                             SLAMCH( 'E' )
 | |
| *
 | |
|                      IF( .NOT.PREFAC ) THEN
 | |
| *
 | |
| *                       Reconstruct matrix from factors and compute
 | |
| *                       residual.
 | |
| *
 | |
|                         CALL SGET01( N, N, A, LDA, AFAC, LDA, IWORK,
 | |
|      $                               RWORK( 2*NRHS+1 ), RESULT( 1 ) )
 | |
|                         K1 = 1
 | |
|                      ELSE
 | |
|                         K1 = 2
 | |
|                      END IF
 | |
| *
 | |
|                      IF( INFO.EQ.0 ) THEN
 | |
|                         TRFCON = .FALSE.
 | |
| *
 | |
| *                       Compute residual of the computed solution.
 | |
| *
 | |
|                         CALL SLACPY( 'Full', N, NRHS, BSAV, LDA, WORK,
 | |
|      $                               LDA )
 | |
|                         CALL SGET02( TRANS, N, N, NRHS, ASAV, LDA, X,
 | |
|      $                               LDA, WORK, LDA, RWORK( 2*NRHS+1 ),
 | |
|      $                               RESULT( 2 ) )
 | |
| *
 | |
| *                       Check solution from generated exact solution.
 | |
| *
 | |
|                         IF( NOFACT .OR. ( PREFAC .AND. LSAME( EQUED,
 | |
|      $                      'N' ) ) ) THEN
 | |
|                            CALL SGET04( N, NRHS, X, LDA, XACT, LDA,
 | |
|      $                                  RCONDC, RESULT( 3 ) )
 | |
|                         ELSE
 | |
|                            IF( ITRAN.EQ.1 ) THEN
 | |
|                               ROLDC = ROLDO
 | |
|                            ELSE
 | |
|                               ROLDC = ROLDI
 | |
|                            END IF
 | |
|                            CALL SGET04( N, NRHS, X, LDA, XACT, LDA,
 | |
|      $                                  ROLDC, RESULT( 3 ) )
 | |
|                         END IF
 | |
| *
 | |
| *                       Check the error bounds from iterative
 | |
| *                       refinement.
 | |
| *
 | |
|                         CALL SGET07( TRANS, N, NRHS, ASAV, LDA, B, LDA,
 | |
|      $                               X, LDA, XACT, LDA, RWORK, .TRUE.,
 | |
|      $                               RWORK( NRHS+1 ), RESULT( 4 ) )
 | |
|                      ELSE
 | |
|                         TRFCON = .TRUE.
 | |
|                      END IF
 | |
| *
 | |
| *                    Compare RCOND from SGESVX with the computed value
 | |
| *                    in RCONDC.
 | |
| *
 | |
|                      RESULT( 6 ) = SGET06( RCOND, RCONDC )
 | |
| *
 | |
| *                    Print information about the tests that did not pass
 | |
| *                    the threshold.
 | |
| *
 | |
|                      IF( .NOT.TRFCON ) THEN
 | |
|                         DO 40 K = K1, NTESTS
 | |
|                            IF( RESULT( K ).GE.THRESH ) THEN
 | |
|                               IF( NFAIL.EQ.0 .AND. NERRS.EQ.0 )
 | |
|      $                           CALL ALADHD( NOUT, PATH )
 | |
|                               IF( PREFAC ) THEN
 | |
|                                  WRITE( NOUT, FMT = 9997 )'SGESVX',
 | |
|      $                              FACT, TRANS, N, EQUED, IMAT, K,
 | |
|      $                              RESULT( K )
 | |
|                               ELSE
 | |
|                                  WRITE( NOUT, FMT = 9998 )'SGESVX',
 | |
|      $                              FACT, TRANS, N, IMAT, K, RESULT( K )
 | |
|                               END IF
 | |
|                               NFAIL = NFAIL + 1
 | |
|                            END IF
 | |
|    40                   CONTINUE
 | |
|                         NRUN = NRUN + NTESTS - K1 + 1
 | |
|                      ELSE
 | |
|                         IF( RESULT( 1 ).GE.THRESH .AND. .NOT.PREFAC )
 | |
|      $                       THEN
 | |
|                            IF( NFAIL.EQ.0 .AND. NERRS.EQ.0 )
 | |
|      $                        CALL ALADHD( NOUT, PATH )
 | |
|                            IF( PREFAC ) THEN
 | |
|                               WRITE( NOUT, FMT = 9997 )'SGESVX', FACT,
 | |
|      $                           TRANS, N, EQUED, IMAT, 1, RESULT( 1 )
 | |
|                            ELSE
 | |
|                               WRITE( NOUT, FMT = 9998 )'SGESVX', FACT,
 | |
|      $                           TRANS, N, IMAT, 1, RESULT( 1 )
 | |
|                            END IF
 | |
|                            NFAIL = NFAIL + 1
 | |
|                            NRUN = NRUN + 1
 | |
|                         END IF
 | |
|                         IF( RESULT( 6 ).GE.THRESH ) THEN
 | |
|                            IF( NFAIL.EQ.0 .AND. NERRS.EQ.0 )
 | |
|      $                        CALL ALADHD( NOUT, PATH )
 | |
|                            IF( PREFAC ) THEN
 | |
|                               WRITE( NOUT, FMT = 9997 )'SGESVX', FACT,
 | |
|      $                           TRANS, N, EQUED, IMAT, 6, RESULT( 6 )
 | |
|                            ELSE
 | |
|                               WRITE( NOUT, FMT = 9998 )'SGESVX', FACT,
 | |
|      $                           TRANS, N, IMAT, 6, RESULT( 6 )
 | |
|                            END IF
 | |
|                            NFAIL = NFAIL + 1
 | |
|                            NRUN = NRUN + 1
 | |
|                         END IF
 | |
|                         IF( RESULT( 7 ).GE.THRESH ) THEN
 | |
|                            IF( NFAIL.EQ.0 .AND. NERRS.EQ.0 )
 | |
|      $                        CALL ALADHD( NOUT, PATH )
 | |
|                            IF( PREFAC ) THEN
 | |
|                               WRITE( NOUT, FMT = 9997 )'SGESVX', FACT,
 | |
|      $                           TRANS, N, EQUED, IMAT, 7, RESULT( 7 )
 | |
|                            ELSE
 | |
|                               WRITE( NOUT, FMT = 9998 )'SGESVX', FACT,
 | |
|      $                           TRANS, N, IMAT, 7, RESULT( 7 )
 | |
|                            END IF
 | |
|                            NFAIL = NFAIL + 1
 | |
|                            NRUN = NRUN + 1
 | |
|                         END IF
 | |
| *
 | |
|                      END IF
 | |
| *
 | |
|    50             CONTINUE
 | |
|    60          CONTINUE
 | |
|    70       CONTINUE
 | |
|    80    CONTINUE
 | |
|    90 CONTINUE
 | |
| *
 | |
| *     Print a summary of the results.
 | |
| *
 | |
|       CALL ALASVM( PATH, NOUT, NFAIL, NRUN, NERRS )
 | |
| *
 | |
|  9999 FORMAT( 1X, A, ', N =', I5, ', type ', I2, ', test(', I2, ') =',
 | |
|      $      G12.5 )
 | |
|  9998 FORMAT( 1X, A, ', FACT=''', A1, ''', TRANS=''', A1, ''', N=', I5,
 | |
|      $      ', type ', I2, ', test(', I1, ')=', G12.5 )
 | |
|  9997 FORMAT( 1X, A, ', FACT=''', A1, ''', TRANS=''', A1, ''', N=', I5,
 | |
|      $      ', EQUED=''', A1, ''', type ', I2, ', test(', I1, ')=',
 | |
|      $      G12.5 )
 | |
|       RETURN
 | |
| *
 | |
| *     End of SDRVGE
 | |
| *
 | |
|       END
 |