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SUBROUTINE DDRVRF2( NOUT, NN, NVAL, A, LDA, ARF, AP, ASAV )
* * -- LAPACK test routine (version 3.2.0) -- * Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd.. * November 2008 * * .. Scalar Arguments .. INTEGER LDA, NN, NOUT * .. * .. Array Arguments .. INTEGER NVAL( NN ) DOUBLE PRECISION A( LDA, * ), ARF( * ), AP(*), ASAV( LDA, * ) * .. * * Purpose * ======= * * DDRVRF2 tests the LAPACK RFP convertion routines. * * Arguments * ========= * * NOUT (input) INTEGER * The unit number for output. * * NN (input) INTEGER * The number of values of N contained in the vector NVAL. * * NVAL (input) INTEGER array, dimension (NN) * The values of the matrix dimension N. * * A (workspace) DOUBLE PRECISION array, dimension (LDA,NMAX) * * LDA (input) INTEGER * The leading dimension of the array A. LDA >= max(1,NMAX). * * ARF (workspace) DOUBLE PRECISION array, dimension ((NMAX*(NMAX+1))/2). * * AP (workspace) DOUBLE PRECISION array, dimension ((NMAX*(NMAX+1))/2). * * A2 (workspace) DOUBLE PRECISION array, dimension (LDA,NMAX) * * ===================================================================== * .. * .. Local Scalars .. LOGICAL LOWER, OK1, OK2 CHARACTER UPLO, CFORM INTEGER I, IFORM, IIN, INFO, IUPLO, J, N, + NERRS, NRUN * .. * .. Local Arrays .. CHARACTER UPLOS( 2 ), FORMS( 2 ) INTEGER ISEED( 4 ), ISEEDY( 4 ) * .. * .. External Functions .. DOUBLE PRECISION DLARND EXTERNAL DLARND * .. * .. External Subroutines .. EXTERNAL DTFTTR, DTFTTP, DTRTTF, DTRTTP, DTPTTR, DTPTTF * .. * .. Scalars in Common .. CHARACTER*32 SRNAMT * .. * .. Common blocks .. COMMON / SRNAMC / SRNAMT * .. * .. Data statements .. DATA ISEEDY / 1988, 1989, 1990, 1991 / DATA UPLOS / 'U', 'L' / DATA FORMS / 'N', 'T' / * .. * .. Executable Statements .. * * Initialize constants and the random number seed. * NRUN = 0 NERRS = 0 INFO = 0 DO 10 I = 1, 4 ISEED( I ) = ISEEDY( I ) 10 CONTINUE * DO 120 IIN = 1, NN * N = NVAL( IIN ) * * Do first for UPLO = 'U', then for UPLO = 'L' * DO 110 IUPLO = 1, 2 * UPLO = UPLOS( IUPLO ) LOWER = .TRUE. IF ( IUPLO.EQ.1 ) LOWER = .FALSE. * * Do first for CFORM = 'N', then for CFORM = 'T' * DO 100 IFORM = 1, 2 * CFORM = FORMS( IFORM ) * NRUN = NRUN + 1 * DO J = 1, N DO I = 1, N A( I, J) = DLARND( 2, ISEED ) END DO END DO * SRNAMT = 'DTRTTF' CALL DTRTTF( CFORM, UPLO, N, A, LDA, ARF, INFO ) * SRNAMT = 'DTFTTP' CALL DTFTTP( CFORM, UPLO, N, ARF, AP, INFO ) * SRNAMT = 'DTPTTR' CALL DTPTTR( UPLO, N, AP, ASAV, LDA, INFO ) * OK1 = .TRUE. IF ( LOWER ) THEN DO J = 1, N DO I = J, N IF ( A(I,J).NE.ASAV(I,J) ) THEN OK1 = .FALSE. END IF END DO END DO ELSE DO J = 1, N DO I = 1, J IF ( A(I,J).NE.ASAV(I,J) ) THEN OK1 = .FALSE. END IF END DO END DO END IF * NRUN = NRUN + 1 * SRNAMT = 'DTRTTP' CALL DTRTTP( UPLO, N, A, LDA, AP, INFO ) * SRNAMT = 'DTPTTF' CALL DTPTTF( CFORM, UPLO, N, AP, ARF, INFO ) * SRNAMT = 'DTFTTR' CALL DTFTTR( CFORM, UPLO, N, ARF, ASAV, LDA, INFO ) * OK2 = .TRUE. IF ( LOWER ) THEN DO J = 1, N DO I = J, N IF ( A(I,J).NE.ASAV(I,J) ) THEN OK2 = .FALSE. END IF END DO END DO ELSE DO J = 1, N DO I = 1, J IF ( A(I,J).NE.ASAV(I,J) ) THEN OK2 = .FALSE. END IF END DO END DO END IF * IF (( .NOT.OK1 ).OR.( .NOT.OK2 )) THEN IF( NERRS.EQ.0 ) THEN WRITE( NOUT, * ) WRITE( NOUT, FMT = 9999 ) END IF WRITE( NOUT, FMT = 9998 ) N, UPLO, CFORM NERRS = NERRS + 1 END IF * 100 CONTINUE 110 CONTINUE 120 CONTINUE * * Print a summary of the results. * IF ( NERRS.EQ.0 ) THEN WRITE( NOUT, FMT = 9997 ) NRUN ELSE WRITE( NOUT, FMT = 9996 ) NERRS, NRUN END IF * 9999 FORMAT( 1X, ' *** Error(s) while testing the RFP convertion', + ' routines ***') 9998 FORMAT( 1X, ' Error in RFP,convertion routines N=',I5, + ' UPLO=''', A1, ''', FORM =''',A1,'''') 9997 FORMAT( 1X, 'All tests for the RFP convertion routines passed (', + I5,' tests run)') 9996 FORMAT( 1X, 'RFP convertion routines:',I5,' out of ',I5, + ' error message recorded') * RETURN * * End of DDRVRF2 * END |