cblat2.f
来自「基于Blas CLapck的.用过的人知道是干啥的」· F 代码 · 共 1,739 行 · 第 1/5 页
F
1,739 行
IF( ERRMAX.LT.THRESH )THEN WRITE( NOUT, FMT = 9999 )SNAME, NC ELSE WRITE( NOUT, FMT = 9997 )SNAME, NC, ERRMAX END IF GO TO 130* 120 CONTINUE WRITE( NOUT, FMT = 9996 )SNAME IF( FULL )THEN WRITE( NOUT, FMT = 9993 )NC, SNAME, UPLO, N, ALPHA, LDA, INCX, $ BETA, INCY ELSE IF( BANDED )THEN WRITE( NOUT, FMT = 9994 )NC, SNAME, UPLO, N, K, ALPHA, LDA, $ INCX, BETA, INCY ELSE IF( PACKED )THEN WRITE( NOUT, FMT = 9995 )NC, SNAME, UPLO, N, ALPHA, INCX, $ BETA, INCY END IF* 130 CONTINUE RETURN* 9999 FORMAT( ' ', A6, ' PASSED THE COMPUTATIONAL TESTS (', I6, ' CALL', $ 'S)' ) 9998 FORMAT( ' ******* FATAL ERROR - PARAMETER NUMBER ', I2, ' WAS CH', $ 'ANGED INCORRECTLY *******' ) 9997 FORMAT( ' ', A6, ' COMPLETED THE COMPUTATIONAL TESTS (', I6, ' C', $ 'ALLS)', /' ******* BUT WITH MAXIMUM TEST RATIO', F8.2, $ ' - SUSPECT *******' ) 9996 FORMAT( ' ******* ', A6, ' FAILED ON CALL NUMBER:' ) 9995 FORMAT( 1X, I6, ': ', A6, '(''', A1, ''',', I3, ',(', F4.1, ',', $ F4.1, '), AP, X,', I2, ',(', F4.1, ',', F4.1, '), Y,', I2, $ ') .' ) 9994 FORMAT( 1X, I6, ': ', A6, '(''', A1, ''',', 2( I3, ',' ), '(', $ F4.1, ',', F4.1, '), A,', I3, ', X,', I2, ',(', F4.1, ',', $ F4.1, '), Y,', I2, ') .' ) 9993 FORMAT( 1X, I6, ': ', A6, '(''', A1, ''',', I3, ',(', F4.1, ',', $ F4.1, '), A,', I3, ', X,', I2, ',(', F4.1, ',', F4.1, '), ', $ 'Y,', I2, ') .' ) 9992 FORMAT( ' ******* FATAL ERROR - ERROR-EXIT TAKEN ON VALID CALL *', $ '******' )** End of CCHK2.* END SUBROUTINE CCHK3( SNAME, EPS, THRESH, NOUT, NTRA, TRACE, REWI, $ FATAL, NIDIM, IDIM, NKB, KB, NINC, INC, NMAX, $ INCMAX, A, AA, AS, X, XX, XS, XT, G, Z )** Tests CTRMV, CTBMV, CTPMV, CTRSV, CTBSV and CTPSV.** Auxiliary routine for test program for Level 2 Blas.** -- Written on 10-August-1987.* Richard Hanson, Sandia National Labs.* Jeremy Du Croz, NAG Central Office.** .. Parameters .. COMPLEX ZERO, HALF, ONE PARAMETER ( ZERO = ( 0.0, 0.0 ), HALF = ( 0.5, 0.0 ), $ ONE = ( 1.0, 0.0 ) ) REAL RZERO PARAMETER ( RZERO = 0.0 )* .. Scalar Arguments .. REAL EPS, THRESH INTEGER INCMAX, NIDIM, NINC, NKB, NMAX, NOUT, NTRA LOGICAL FATAL, REWI, TRACE CHARACTER*6 SNAME* .. Array Arguments .. COMPLEX A( NMAX, NMAX ), AA( NMAX*NMAX ), $ AS( NMAX*NMAX ), X( NMAX ), XS( NMAX*INCMAX ), $ XT( NMAX ), XX( NMAX*INCMAX ), Z( NMAX ) REAL G( NMAX ) INTEGER IDIM( NIDIM ), INC( NINC ), KB( NKB )* .. Local Scalars .. COMPLEX TRANSL REAL ERR, ERRMAX INTEGER I, ICD, ICT, ICU, IK, IN, INCX, INCXS, IX, K, $ KS, LAA, LDA, LDAS, LX, N, NARGS, NC, NK, NS LOGICAL BANDED, FULL, NULL, PACKED, RESET, SAME CHARACTER*1 DIAG, DIAGS, TRANS, TRANSS, UPLO, UPLOS CHARACTER*2 ICHD, ICHU CHARACTER*3 ICHT* .. Local Arrays .. LOGICAL ISAME( 13 )* .. External Functions .. LOGICAL LCE, LCERES EXTERNAL LCE, LCERES* .. External Subroutines .. EXTERNAL CMAKE, CMVCH, CTBMV, CTBSV, CTPMV, CTPSV, $ CTRMV, CTRSV* .. Intrinsic Functions .. INTRINSIC ABS, MAX* .. Scalars in Common .. INTEGER INFOT, NOUTC LOGICAL LERR, OK* .. Common blocks .. COMMON /INFOC/INFOT, NOUTC, OK, LERR* .. Data statements .. DATA ICHU/'UL'/, ICHT/'NTC'/, ICHD/'UN'/* .. Executable Statements .. FULL = SNAME( 3: 3 ).EQ.'R' BANDED = SNAME( 3: 3 ).EQ.'B' PACKED = SNAME( 3: 3 ).EQ.'P'* Define the number of arguments. IF( FULL )THEN NARGS = 8 ELSE IF( BANDED )THEN NARGS = 9 ELSE IF( PACKED )THEN NARGS = 7 END IF* NC = 0 RESET = .TRUE. ERRMAX = RZERO* Set up zero vector for CMVCH. DO 10 I = 1, NMAX Z( I ) = ZERO 10 CONTINUE* DO 110 IN = 1, NIDIM N = IDIM( IN )* IF( BANDED )THEN NK = NKB ELSE NK = 1 END IF DO 100 IK = 1, NK IF( BANDED )THEN K = KB( IK ) ELSE K = N - 1 END IF* Set LDA to 1 more than minimum value if room. IF( BANDED )THEN LDA = K + 1 ELSE LDA = N END IF IF( LDA.LT.NMAX ) $ LDA = LDA + 1* Skip tests if not enough room. IF( LDA.GT.NMAX ) $ GO TO 100 IF( PACKED )THEN LAA = ( N*( N + 1 ) )/2 ELSE LAA = LDA*N END IF NULL = N.LE.0* DO 90 ICU = 1, 2 UPLO = ICHU( ICU: ICU )* DO 80 ICT = 1, 3 TRANS = ICHT( ICT: ICT )* DO 70 ICD = 1, 2 DIAG = ICHD( ICD: ICD )** Generate the matrix A.* TRANSL = ZERO CALL CMAKE( SNAME( 2: 3 ), UPLO, DIAG, N, N, A, $ NMAX, AA, LDA, K, K, RESET, TRANSL )* DO 60 IX = 1, NINC INCX = INC( IX ) LX = ABS( INCX )*N** Generate the vector X.* TRANSL = HALF CALL CMAKE( 'GE', ' ', ' ', 1, N, X, 1, XX, $ ABS( INCX ), 0, N - 1, RESET, $ TRANSL ) IF( N.GT.1 )THEN X( N/2 ) = ZERO XX( 1 + ABS( INCX )*( N/2 - 1 ) ) = ZERO END IF* NC = NC + 1** Save every datum before calling the subroutine.* UPLOS = UPLO TRANSS = TRANS DIAGS = DIAG NS = N KS = K DO 20 I = 1, LAA AS( I ) = AA( I ) 20 CONTINUE LDAS = LDA DO 30 I = 1, LX XS( I ) = XX( I ) 30 CONTINUE INCXS = INCX** Call the subroutine.* IF( SNAME( 4: 5 ).EQ.'MV' )THEN IF( FULL )THEN IF( TRACE ) $ WRITE( NTRA, FMT = 9993 )NC, SNAME, $ UPLO, TRANS, DIAG, N, LDA, INCX IF( REWI ) $ REWIND NTRA CALL CTRMV( UPLO, TRANS, DIAG, N, AA, LDA, $ XX, INCX ) ELSE IF( BANDED )THEN IF( TRACE ) $ WRITE( NTRA, FMT = 9994 )NC, SNAME, $ UPLO, TRANS, DIAG, N, K, LDA, INCX IF( REWI ) $ REWIND NTRA CALL CTBMV( UPLO, TRANS, DIAG, N, K, AA, $ LDA, XX, INCX ) ELSE IF( PACKED )THEN IF( TRACE ) $ WRITE( NTRA, FMT = 9995 )NC, SNAME, $ UPLO, TRANS, DIAG, N, INCX IF( REWI ) $ REWIND NTRA CALL CTPMV( UPLO, TRANS, DIAG, N, AA, XX, $ INCX ) END IF ELSE IF( SNAME( 4: 5 ).EQ.'SV' )THEN IF( FULL )THEN IF( TRACE ) $ WRITE( NTRA, FMT = 9993 )NC, SNAME, $ UPLO, TRANS, DIAG, N, LDA, INCX IF( REWI ) $ REWIND NTRA CALL CTRSV( UPLO, TRANS, DIAG, N, AA, LDA, $ XX, INCX ) ELSE IF( BANDED )THEN IF( TRACE ) $ WRITE( NTRA, FMT = 9994 )NC, SNAME, $ UPLO, TRANS, DIAG, N, K, LDA, INCX IF( REWI ) $ REWIND NTRA CALL CTBSV( UPLO, TRANS, DIAG, N, K, AA, $ LDA, XX, INCX ) ELSE IF( PACKED )THEN IF( TRACE ) $ WRITE( NTRA, FMT = 9995 )NC, SNAME, $ UPLO, TRANS, DIAG, N, INCX IF( REWI ) $ REWIND NTRA CALL CTPSV( UPLO, TRANS, DIAG, N, AA, XX, $ INCX ) END IF END IF** Check if error-exit was taken incorrectly.* IF( .NOT.OK )THEN WRITE( NOUT, FMT = 9992 ) FATAL = .TRUE. GO TO 120 END IF** See what data changed inside subroutines.* ISAME( 1 ) = UPLO.EQ.UPLOS ISAME( 2 ) = TRANS.EQ.TRANSS ISAME( 3 ) = DIAG.EQ.DIAGS ISAME( 4 ) = NS.EQ.N IF( FULL )THEN ISAME( 5 ) = LCE( AS, AA, LAA ) ISAME( 6 ) = LDAS.EQ.LDA IF( NULL )THEN ISAME( 7 ) = LCE( XS, XX, LX ) ELSE ISAME( 7 ) = LCERES( 'GE', ' ', 1, N, XS, $ XX, ABS( INCX ) ) END IF ISAME( 8 ) = INCXS.EQ.INCX ELSE IF( BANDED )THEN ISAME( 5 ) = KS.EQ.K ISAME( 6 ) = LCE( AS, AA, LAA ) ISAME( 7 ) = LDAS.EQ.LDA IF( NULL )THEN ISAME( 8 ) = LCE( XS, XX, LX ) ELSE ISAME( 8 ) = LCERES( 'GE', ' ', 1, N, XS, $ XX, ABS( INCX ) ) END IF ISAME( 9 ) = INCXS.EQ.INCX ELSE IF( PACKED )THEN ISAME( 5 ) = LCE( AS, AA, LAA ) IF( NULL )THEN ISAME( 6 ) = LCE( XS, XX, LX ) ELSE ISAME( 6 ) = LCERES( 'GE', ' ', 1, N, XS, $ XX, ABS( INCX ) ) END IF ISAME( 7 ) = INCXS.EQ.INCX END IF** If data was incorrectly changed, report and* return.* SAME = .TRUE. DO 40 I = 1, NARGS SAME = SAME.AND.ISAME( I ) IF( .NOT.ISAME( I ) ) $ WRITE( NOUT, FMT = 9998 )I 40 CONTINUE IF( .NOT.SAME )THEN FATAL = .TRUE. GO TO 120 END IF* IF( .NOT.NULL )THEN IF( SNAME( 4: 5 ).EQ.'MV' )THEN** Check the result.* CALL CMVCH( TRANS, N, N, ONE, A, NMAX, X, $ INCX, ZERO, Z, INCX, XT, G, $ XX, EPS, ERR, FATAL, NOUT, $ .TRUE. ) ELSE IF( SNAME( 4: 5 ).EQ.'SV' )THEN** Compute approximation to original vector.* DO 50 I = 1, N Z( I ) = XX( 1 + ( I - 1 )* $ ABS( INCX ) ) XX( 1 + ( I - 1 )*ABS( INCX ) ) $ = X( I ) 50 CONTINUE CALL CMVCH( TRANS, N, N, ONE, A, NMAX, Z, $ INCX, ZERO, X, INCX, XT, G, $ XX, EPS, ERR, FATAL, NOUT, $ .FALSE. ) END IF ERRMAX = MAX( ERRMAX, ERR )* If got really bad answer, report and return. IF( FATAL ) $ GO TO 120 ELSE* Avoid repeating tests with N.le.0.⌨️ 快捷键说明
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