numeric-linalg
Educational material on the SciPy implementation of numerical linear algebra algorithms
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| lapack/TESTING/LIN/schklqtp.f | 5465B | -rw-r--r-- |
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*> \brief \b SCHKLQTP * * =========== DOCUMENTATION =========== * * Online html documentation available at * http://www.netlib.org/lapack/explore-html/ * * Definition: * =========== * * SUBROUTINE SCHKLQTP( THRESH, TSTERR, NM, MVAL, NN, NVAL, NNB, * NBVAL, NOUT ) * * .. Scalar Arguments .. * LOGICAL TSTERR * INTEGER NM, NN, NNB, NOUT * REAL THRESH * .. * .. Array Arguments .. * INTEGER MVAL( * ), NBVAL( * ), NVAL( * ) * *> \par Purpose: * ============= *> *> \verbatim *> *> SCHKLQTP tests STPLQT and STPMLQT. *> \endverbatim * * Arguments: * ========== * *> \param[in] THRESH *> \verbatim *> THRESH is REAL *> The threshold value for the test ratios. A result is *> included in the output file if RESULT >= THRESH. To have *> every test ratio printed, use THRESH = 0. *> \endverbatim *> *> \param[in] TSTERR *> \verbatim *> TSTERR is LOGICAL *> Flag that indicates whether error exits are to be tested. *> \endverbatim *> *> \param[in] NM *> \verbatim *> NM is INTEGER *> The number of values of M contained in the vector MVAL. *> \endverbatim *> *> \param[in] MVAL *> \verbatim *> MVAL is INTEGER array, dimension (NM) *> The values of the matrix row dimension M. *> \endverbatim *> *> \param[in] NN *> \verbatim *> NN is INTEGER *> The number of values of N contained in the vector NVAL. *> \endverbatim *> *> \param[in] NVAL *> \verbatim *> NVAL is INTEGER array, dimension (NN) *> The values of the matrix column dimension N. *> \endverbatim *> *> \param[in] NNB *> \verbatim *> NNB is INTEGER *> The number of values of NB contained in the vector NBVAL. *> \endverbatim *> *> \param[in] NBVAL *> \verbatim *> NBVAL is INTEGER array, dimension (NNB) *> The values of the blocksize NB. *> \endverbatim *> *> \param[in] NOUT *> \verbatim *> NOUT is INTEGER *> The unit number for output. *> \endverbatim * * Authors: * ======== * *> \author Univ. of Tennessee *> \author Univ. of California Berkeley *> \author Univ. of Colorado Denver *> \author NAG Ltd. * *> \ingroup double_lin * * ===================================================================== SUBROUTINE SCHKLQTP( THRESH, TSTERR, NM, MVAL, NN, NVAL, NNB, $ NBVAL, NOUT ) IMPLICIT NONE * * -- LAPACK test routine -- * -- LAPACK is a software package provided by Univ. of Tennessee, -- * -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..-- * * .. Scalar Arguments .. LOGICAL TSTERR INTEGER NM, NN, NNB, NOUT REAL THRESH * .. * .. Array Arguments .. INTEGER MVAL( * ), NBVAL( * ), NVAL( * ) * .. * * ===================================================================== * * .. Parameters .. INTEGER NTESTS PARAMETER ( NTESTS = 6 ) * .. * .. Local Scalars .. CHARACTER*3 PATH INTEGER I, J, K, L, T, M, N, NB, NFAIL, NERRS, NRUN, $ MINMN * .. * .. Local Arrays .. REAL RESULT( NTESTS ) * .. * .. External Subroutines .. EXTERNAL ALAERH, ALAHD, ALASUM, SERRLQTP, SLQT05 * .. * .. Scalars in Common .. LOGICAL LERR, OK CHARACTER*32 SRNAMT INTEGER INFOT, NUNIT * .. * .. Common blocks .. COMMON / INFOC / INFOT, NUNIT, OK, LERR COMMON / SRNAMC / SRNAMT * .. * .. Executable Statements .. * * Initialize constants * PATH( 1: 1 ) = 'S' PATH( 2: 3 ) = 'XQ' NRUN = 0 NFAIL = 0 NERRS = 0 * * Test the error exits * IF( TSTERR ) CALL SERRLQTP( PATH, NOUT ) INFOT = 0 * * Do for each value of M * DO I = 1, NM M = MVAL( I ) * * Do for each value of N * DO J = 1, NN N = NVAL( J ) * * Do for each value of L * MINMN = MIN( M, N ) DO L = 0, MINMN, MAX( MINMN, 1 ) * * Do for each possible value of NB * DO K = 1, NNB NB = NBVAL( K ) * * Test DTPLQT and DTPMLQT * IF( (NB.LE.M).AND.(NB.GT.0) ) THEN CALL SLQT05( M, N, L, NB, RESULT ) * * Print information about the tests that did not * pass the threshold. * DO T = 1, NTESTS IF( RESULT( T ).GE.THRESH ) THEN IF( NFAIL.EQ.0 .AND. NERRS.EQ.0 ) $ CALL ALAHD( NOUT, PATH ) WRITE( NOUT, FMT = 9999 )M, N, NB, L, $ T, RESULT( T ) NFAIL = NFAIL + 1 END IF END DO NRUN = NRUN + NTESTS END IF END DO END DO END DO END DO * * Print a summary of the results. * CALL ALASUM( PATH, NOUT, NFAIL, NRUN, NERRS ) * 9999 FORMAT( ' M=', I5, ', N=', I5, ', NB=', I4,' L=', I4, $ ' test(', I2, ')=', G12.5 ) RETURN * * End of SCHKQRTP * END