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SUBROUTINE ZDRVRF2( NOUT, NN, NVAL, A, LDA, ARF, AP, ASAV )
*
IMPLICIT NONE
*
* -- 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 )
COMPLEX*16 A( LDA, * ), ARF( * ), AP(*), ASAV( LDA, * )
* ..
*
* Purpose
* =======
*
* ZDRVRF2 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) COMPLEX*16 array, dimension (LDA,NMAX)
*
* LDA (input) INTEGER
* The leading dimension of the array A. LDA >= max(1,NMAX).
*
* ARF (workspace) COMPLEX*16 array, dimension ((NMAX*(NMAX+1))/2).
*
* AP (workspace) COMPLEX*16 array, dimension ((NMAX*(NMAX+1))/2).
*
* A2 (workspace) COMPLEX*16 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 ..
COMPLEX*16 ZLARND
EXTERNAL ZLARND
* ..
* .. External Subroutines ..
EXTERNAL ZTFTTR, ZTFTTP, ZTRTTF, ZTRTTP, ZTPTTR, ZTPTTF
* ..
* .. 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', 'C' /
* ..
* .. 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 = 'C'
*
DO 100 IFORM = 1, 2
*
CFORM = FORMS( IFORM )
*
NRUN = NRUN + 1
*
DO J = 1, N
DO I = 1, N
A( I, J) = ZLARND( 4, ISEED )
END DO
END DO
*
SRNAMT = 'ZTRTTF'
CALL ZTRTTF( CFORM, UPLO, N, A, LDA, ARF, INFO )
*
SRNAMT = 'ZTFTTP'
CALL ZTFTTP( CFORM, UPLO, N, ARF, AP, INFO )
*
SRNAMT = 'ZTPTTR'
CALL ZTPTTR( 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 = 'ZTRTTP'
CALL ZTRTTP( UPLO, N, A, LDA, AP, INFO )
*
SRNAMT = 'ZTPTTF'
CALL ZTPTTF( CFORM, UPLO, N, AP, ARF, INFO )
*
SRNAMT = 'ZTFTTR'
CALL ZTFTTR( 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 ZDRVRF2
*
END
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