288 lines
9.0 KiB
FortranFixed
288 lines
9.0 KiB
FortranFixed
SUBROUTINE SERRSY( PATH, NUNIT )
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*
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* -- LAPACK test routine (version 3.1) --
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* Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd..
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* November 2006
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*
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* .. Scalar Arguments ..
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CHARACTER*3 PATH
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INTEGER NUNIT
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* ..
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*
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* Purpose
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* =======
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*
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* SERRSY tests the error exits for the REAL routines
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* for symmetric indefinite matrices.
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*
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* Arguments
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* =========
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*
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* PATH (input) CHARACTER*3
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* The LAPACK path name for the routines to be tested.
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*
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* NUNIT (input) INTEGER
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* The unit number for output.
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*
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* =====================================================================
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*
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* .. Parameters ..
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INTEGER NMAX
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PARAMETER ( NMAX = 4 )
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* ..
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* .. Local Scalars ..
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CHARACTER*2 C2
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INTEGER I, INFO, J
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REAL ANRM, RCOND
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* ..
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* .. Local Arrays ..
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INTEGER IP( NMAX ), IW( NMAX )
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REAL A( NMAX, NMAX ), AF( NMAX, NMAX ), B( NMAX ),
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$ R1( NMAX ), R2( NMAX ), W( 3*NMAX ), X( NMAX )
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* ..
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* .. External Functions ..
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LOGICAL LSAMEN
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EXTERNAL LSAMEN
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* ..
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* .. External Subroutines ..
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EXTERNAL ALAESM, CHKXER, SSPCON, SSPRFS, SSPTRF, SSPTRI,
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$ SSPTRS, SSYCON, SSYRFS, SSYTF2, SSYTRF, SSYTRI,
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$ SSYTRS
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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, NOUT
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* ..
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* .. Common blocks ..
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COMMON / INFOC / INFOT, NOUT, OK, LERR
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COMMON / SRNAMC / SRNAMT
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* ..
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* .. Intrinsic Functions ..
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INTRINSIC REAL
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* ..
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* .. Executable Statements ..
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*
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NOUT = NUNIT
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WRITE( NOUT, FMT = * )
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C2 = PATH( 2: 3 )
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*
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* Set the variables to innocuous values.
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*
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DO 20 J = 1, NMAX
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DO 10 I = 1, NMAX
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A( I, J ) = 1. / REAL( I+J )
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AF( I, J ) = 1. / REAL( I+J )
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10 CONTINUE
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B( J ) = 0.
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R1( J ) = 0.
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R2( J ) = 0.
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W( J ) = 0.
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X( J ) = 0.
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IP( J ) = J
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IW( J ) = J
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20 CONTINUE
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ANRM = 1.0
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RCOND = 1.0
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OK = .TRUE.
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*
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IF( LSAMEN( 2, C2, 'SY' ) ) THEN
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*
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* Test error exits of the routines that use the Bunch-Kaufman
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* factorization of a symmetric indefinite matrix.
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*
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* SSYTRF
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*
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SRNAMT = 'SSYTRF'
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INFOT = 1
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CALL SSYTRF( '/', 0, A, 1, IP, W, 1, INFO )
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CALL CHKXER( 'SSYTRF', INFOT, NOUT, LERR, OK )
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INFOT = 2
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CALL SSYTRF( 'U', -1, A, 1, IP, W, 1, INFO )
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CALL CHKXER( 'SSYTRF', INFOT, NOUT, LERR, OK )
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INFOT = 4
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CALL SSYTRF( 'U', 2, A, 1, IP, W, 4, INFO )
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CALL CHKXER( 'SSYTRF', INFOT, NOUT, LERR, OK )
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*
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* SSYTF2
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*
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SRNAMT = 'SSYTF2'
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INFOT = 1
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CALL SSYTF2( '/', 0, A, 1, IP, INFO )
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CALL CHKXER( 'SSYTF2', INFOT, NOUT, LERR, OK )
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INFOT = 2
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CALL SSYTF2( 'U', -1, A, 1, IP, INFO )
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CALL CHKXER( 'SSYTF2', INFOT, NOUT, LERR, OK )
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INFOT = 4
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CALL SSYTF2( 'U', 2, A, 1, IP, INFO )
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CALL CHKXER( 'SSYTF2', INFOT, NOUT, LERR, OK )
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*
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* SSYTRI
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*
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SRNAMT = 'SSYTRI'
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INFOT = 1
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CALL SSYTRI( '/', 0, A, 1, IP, W, INFO )
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CALL CHKXER( 'SSYTRI', INFOT, NOUT, LERR, OK )
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INFOT = 2
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CALL SSYTRI( 'U', -1, A, 1, IP, W, INFO )
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CALL CHKXER( 'SSYTRI', INFOT, NOUT, LERR, OK )
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INFOT = 4
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CALL SSYTRI( 'U', 2, A, 1, IP, W, INFO )
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CALL CHKXER( 'SSYTRI', INFOT, NOUT, LERR, OK )
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*
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* SSYTRS
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*
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SRNAMT = 'SSYTRS'
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INFOT = 1
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CALL SSYTRS( '/', 0, 0, A, 1, IP, B, 1, INFO )
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CALL CHKXER( 'SSYTRS', INFOT, NOUT, LERR, OK )
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INFOT = 2
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CALL SSYTRS( 'U', -1, 0, A, 1, IP, B, 1, INFO )
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CALL CHKXER( 'SSYTRS', INFOT, NOUT, LERR, OK )
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INFOT = 3
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CALL SSYTRS( 'U', 0, -1, A, 1, IP, B, 1, INFO )
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CALL CHKXER( 'SSYTRS', INFOT, NOUT, LERR, OK )
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INFOT = 5
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CALL SSYTRS( 'U', 2, 1, A, 1, IP, B, 2, INFO )
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CALL CHKXER( 'SSYTRS', INFOT, NOUT, LERR, OK )
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INFOT = 8
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CALL SSYTRS( 'U', 2, 1, A, 2, IP, B, 1, INFO )
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CALL CHKXER( 'SSYTRS', INFOT, NOUT, LERR, OK )
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*
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* SSYRFS
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*
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SRNAMT = 'SSYRFS'
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INFOT = 1
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CALL SSYRFS( '/', 0, 0, A, 1, AF, 1, IP, B, 1, X, 1, R1, R2, W,
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$ IW, INFO )
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CALL CHKXER( 'SSYRFS', INFOT, NOUT, LERR, OK )
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INFOT = 2
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CALL SSYRFS( 'U', -1, 0, A, 1, AF, 1, IP, B, 1, X, 1, R1, R2,
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$ W, IW, INFO )
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CALL CHKXER( 'SSYRFS', INFOT, NOUT, LERR, OK )
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INFOT = 3
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CALL SSYRFS( 'U', 0, -1, A, 1, AF, 1, IP, B, 1, X, 1, R1, R2,
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$ W, IW, INFO )
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CALL CHKXER( 'SSYRFS', INFOT, NOUT, LERR, OK )
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INFOT = 5
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CALL SSYRFS( 'U', 2, 1, A, 1, AF, 2, IP, B, 2, X, 2, R1, R2, W,
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$ IW, INFO )
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CALL CHKXER( 'SSYRFS', INFOT, NOUT, LERR, OK )
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INFOT = 7
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CALL SSYRFS( 'U', 2, 1, A, 2, AF, 1, IP, B, 2, X, 2, R1, R2, W,
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$ IW, INFO )
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CALL CHKXER( 'SSYRFS', INFOT, NOUT, LERR, OK )
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INFOT = 10
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CALL SSYRFS( 'U', 2, 1, A, 2, AF, 2, IP, B, 1, X, 2, R1, R2, W,
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$ IW, INFO )
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CALL CHKXER( 'SSYRFS', INFOT, NOUT, LERR, OK )
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INFOT = 12
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CALL SSYRFS( 'U', 2, 1, A, 2, AF, 2, IP, B, 2, X, 1, R1, R2, W,
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$ IW, INFO )
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CALL CHKXER( 'SSYRFS', INFOT, NOUT, LERR, OK )
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*
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* SSYCON
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*
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SRNAMT = 'SSYCON'
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INFOT = 1
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CALL SSYCON( '/', 0, A, 1, IP, ANRM, RCOND, W, IW, INFO )
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CALL CHKXER( 'SSYCON', INFOT, NOUT, LERR, OK )
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INFOT = 2
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CALL SSYCON( 'U', -1, A, 1, IP, ANRM, RCOND, W, IW, INFO )
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CALL CHKXER( 'SSYCON', INFOT, NOUT, LERR, OK )
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INFOT = 4
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CALL SSYCON( 'U', 2, A, 1, IP, ANRM, RCOND, W, IW, INFO )
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CALL CHKXER( 'SSYCON', INFOT, NOUT, LERR, OK )
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INFOT = 6
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CALL SSYCON( 'U', 1, A, 1, IP, -1.0, RCOND, W, IW, INFO )
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CALL CHKXER( 'SSYCON', INFOT, NOUT, LERR, OK )
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*
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ELSE IF( LSAMEN( 2, C2, 'SP' ) ) THEN
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*
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* Test error exits of the routines that use the Bunch-Kaufman
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* factorization of a symmetric indefinite packed matrix.
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*
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* SSPTRF
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*
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SRNAMT = 'SSPTRF'
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INFOT = 1
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CALL SSPTRF( '/', 0, A, IP, INFO )
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CALL CHKXER( 'SSPTRF', INFOT, NOUT, LERR, OK )
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INFOT = 2
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CALL SSPTRF( 'U', -1, A, IP, INFO )
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CALL CHKXER( 'SSPTRF', INFOT, NOUT, LERR, OK )
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*
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* SSPTRI
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*
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SRNAMT = 'SSPTRI'
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INFOT = 1
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CALL SSPTRI( '/', 0, A, IP, W, INFO )
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CALL CHKXER( 'SSPTRI', INFOT, NOUT, LERR, OK )
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INFOT = 2
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CALL SSPTRI( 'U', -1, A, IP, W, INFO )
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CALL CHKXER( 'SSPTRI', INFOT, NOUT, LERR, OK )
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*
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* SSPTRS
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*
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SRNAMT = 'SSPTRS'
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INFOT = 1
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CALL SSPTRS( '/', 0, 0, A, IP, B, 1, INFO )
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CALL CHKXER( 'SSPTRS', INFOT, NOUT, LERR, OK )
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INFOT = 2
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CALL SSPTRS( 'U', -1, 0, A, IP, B, 1, INFO )
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CALL CHKXER( 'SSPTRS', INFOT, NOUT, LERR, OK )
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INFOT = 3
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CALL SSPTRS( 'U', 0, -1, A, IP, B, 1, INFO )
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CALL CHKXER( 'SSPTRS', INFOT, NOUT, LERR, OK )
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INFOT = 7
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CALL SSPTRS( 'U', 2, 1, A, IP, B, 1, INFO )
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CALL CHKXER( 'SSPTRS', INFOT, NOUT, LERR, OK )
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*
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* SSPRFS
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*
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SRNAMT = 'SSPRFS'
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INFOT = 1
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CALL SSPRFS( '/', 0, 0, A, AF, IP, B, 1, X, 1, R1, R2, W, IW,
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$ INFO )
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CALL CHKXER( 'SSPRFS', INFOT, NOUT, LERR, OK )
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INFOT = 2
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CALL SSPRFS( 'U', -1, 0, A, AF, IP, B, 1, X, 1, R1, R2, W, IW,
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$ INFO )
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CALL CHKXER( 'SSPRFS', INFOT, NOUT, LERR, OK )
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INFOT = 3
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CALL SSPRFS( 'U', 0, -1, A, AF, IP, B, 1, X, 1, R1, R2, W, IW,
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$ INFO )
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CALL CHKXER( 'SSPRFS', INFOT, NOUT, LERR, OK )
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INFOT = 8
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CALL SSPRFS( 'U', 2, 1, A, AF, IP, B, 1, X, 2, R1, R2, W, IW,
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$ INFO )
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CALL CHKXER( 'SSPRFS', INFOT, NOUT, LERR, OK )
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INFOT = 10
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CALL SSPRFS( 'U', 2, 1, A, AF, IP, B, 2, X, 1, R1, R2, W, IW,
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$ INFO )
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CALL CHKXER( 'SSPRFS', INFOT, NOUT, LERR, OK )
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*
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* SSPCON
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*
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SRNAMT = 'SSPCON'
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INFOT = 1
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CALL SSPCON( '/', 0, A, IP, ANRM, RCOND, W, IW, INFO )
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CALL CHKXER( 'SSPCON', INFOT, NOUT, LERR, OK )
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INFOT = 2
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CALL SSPCON( 'U', -1, A, IP, ANRM, RCOND, W, IW, INFO )
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CALL CHKXER( 'SSPCON', INFOT, NOUT, LERR, OK )
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INFOT = 5
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CALL SSPCON( 'U', 1, A, IP, -1.0, RCOND, W, IW, INFO )
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CALL CHKXER( 'SSPCON', INFOT, NOUT, LERR, OK )
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END IF
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*
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* Print a summary line.
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*
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CALL ALAESM( PATH, OK, NOUT )
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*
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RETURN
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*
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* End of SERRSY
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*
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END
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