c_sblat2.f

基本的C语言线性代数函数库,在linux下可直接编译；在windows下要显示地申明包含

                                 ISAME( 7 ) = LSE( XS, XX, LX )
                                 ISAME( 8 ) = INCXS.EQ.INCX
                                 ISAME( 9 ) = BLS.EQ.BETA
                                 IF( NULL )THEN
                                    ISAME( 10 ) = LSE( YS, YY, LY )
                                 ELSE
                                    ISAME( 10 ) = LSERES( 'ge', ' ', 1,
     $                                            ML, YS, YY,
     $                                            ABS( INCY ) )
                                 END IF
                                 ISAME( 11 ) = INCYS.EQ.INCY
                              ELSE IF( BANDED )THEN
                                 ISAME( 4 ) = KLS.EQ.KL
                                 ISAME( 5 ) = KUS.EQ.KU
                                 ISAME( 6 ) = ALS.EQ.ALPHA
                                 ISAME( 7 ) = LSE( AS, AA, LAA )
                                 ISAME( 8 ) = LDAS.EQ.LDA
                                 ISAME( 9 ) = LSE( XS, XX, LX )
                                 ISAME( 10 ) = INCXS.EQ.INCX
                                 ISAME( 11 ) = BLS.EQ.BETA
                                 IF( NULL )THEN
                                    ISAME( 12 ) = LSE( YS, YY, LY )
                                 ELSE
                                    ISAME( 12 ) = LSERES( 'ge', ' ', 1,
     $                                            ML, YS, YY,
     $                                            ABS( INCY ) )
                                 END IF
                                 ISAME( 13 ) = INCYS.EQ.INCY
                              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 130
                              END IF
*
                              IF( .NOT.NULL )THEN
*
*                                Check the result.
*
                                 CALL SMVCH( TRANS, M, N, ALPHA, A,
     $                                       NMAX, X, INCX, BETA, Y,
     $                                       INCY, YT, G, YY, EPS, ERR,
     $                                       FATAL, NOUT, .TRUE. )
                                 ERRMAX = MAX( ERRMAX, ERR )
*                                If got really bad answer, report and
*                                return.
                                 IF( FATAL )
     $                              GO TO 130
                              ELSE
*                                Avoid repeating tests with M.le.0 or
*                                N.le.0.
                                 GO TO 110
                              END IF
*
   50                      CONTINUE
*
   60                   CONTINUE
*
   70                CONTINUE
*
   80             CONTINUE
*
   90          CONTINUE
*
  100       CONTINUE
*
  110    CONTINUE
*
  120 CONTINUE
*
*     Report result.
*
      IF( ERRMAX.LT.THRESH )THEN
         IF ( IORDER.EQ.0) WRITE( NOUT, FMT = 10000 )SNAME, NC
         IF ( IORDER.EQ.1) WRITE( NOUT, FMT = 10001 )SNAME, NC
      ELSE
         IF ( IORDER.EQ.0) WRITE( NOUT, FMT = 10002 )SNAME, NC, ERRMAX
         IF ( IORDER.EQ.1) WRITE( NOUT, FMT = 10003 )SNAME, NC, ERRMAX
      END IF
      GO TO 140
*
  130 CONTINUE
      WRITE( NOUT, FMT = 9996 )SNAME
      IF( FULL )THEN
         WRITE( NOUT, FMT = 9994 )NC, SNAME, CTRANS, M, N, ALPHA, LDA,
     $      INCX, BETA, INCY
      ELSE IF( BANDED )THEN
         WRITE( NOUT, FMT = 9995 )NC, SNAME, CTRANS, M, N, KL, KU,
     $      ALPHA, LDA, INCX, BETA, INCY
      END IF
*
  140 CONTINUE
      RETURN
*
10003 FORMAT( ' ', A12,' COMPLETED THE ROW-MAJOR    COMPUTATIONAL ',
     $ 'TESTS (', I6, ' CALLS)', /' ******* BUT WITH MAXIMUM TEST ',
     $ 'RATIO ', F8.2, ' - SUSPECT *******' )
10002 FORMAT( ' ', A12,' COMPLETED THE COLUMN-MAJOR COMPUTATIONAL ',
     $ 'TESTS (', I6, ' CALLS)', /' ******* BUT WITH MAXIMUM TEST ',
     $ 'RATIO ', F8.2, ' - SUSPECT *******' )
10001 FORMAT( ' ', A12,' PASSED THE ROW-MAJOR    COMPUTATIONAL TESTS',
     $ ' (', I6, ' CALL', 'S)' )
10000 FORMAT( ' ', A12,' PASSED THE COLUMN-MAJOR COMPUTATIONAL TESTS',
     $ ' (', I6, ' CALL', 'S)' )
 9998 FORMAT( ' ******* FATAL ERROR - PARAMETER NUMBER ', I2, ' WAS CH',
     $      'ANGED INCORRECTLY *******' )
 9997 FORMAT( ' ',A12, ' COMPLETED THE COMPUTATIONAL TESTS (', I6, ' C',
     $      'ALLS)', /' ******* BUT WITH MAXIMUM TEST RATIO', F8.2,
     $      ' - SUSPECT *******' )
 9996 FORMAT( ' ******* ',A12, ' FAILED ON CALL NUMBER:' )
 9995 FORMAT( 1X, I6, ': ',A12, '(', A14, ',', 4( I3, ',' ), F4.1,
     $      ', A,', I3, ',',/ 10x, 'X,', I2, ',', F4.1, ', Y,',
     $      I2, ') .' )
 9994 FORMAT( 1X, I6, ': ',A12, '(', A14, ',', 2( I3, ',' ), F4.1,
     $      ', A,', I3, ', X,', I2, ',', F4.1, ', Y,', I2,
     $      ') .' )
 9993 FORMAT( ' ******* FATAL ERROR - ERROR-EXIT TAKEN ON VALID CALL *',
     $      '******' )
*
*     End of SCHK1.
*
      END
      SUBROUTINE SCHK2( SNAME, EPS, THRESH, NOUT, NTRA, TRACE, REWI,
     $                  FATAL, NIDIM, IDIM, NKB, KB, NALF, ALF, NBET,
     $                  BET, NINC, INC, NMAX, INCMAX, A, AA, AS, X, XX,
     $                  XS, Y, YY, YS, YT, G, IORDER )
*
*  Tests SSYMV, SSBMV and SSPMV.
*
*  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 ..
      REAL               ZERO, HALF
      PARAMETER          ( ZERO = 0.0, HALF = 0.5 )
*     .. Scalar Arguments ..
      REAL               EPS, THRESH
      INTEGER            INCMAX, NALF, NBET, NIDIM, NINC, NKB, NMAX,
     $                   NOUT, NTRA, IORDER
      LOGICAL            FATAL, REWI, TRACE
      CHARACTER*12       SNAME
*     .. Array Arguments ..
      REAL               A( NMAX, NMAX ), AA( NMAX*NMAX ), ALF( NALF ),
     $                   AS( NMAX*NMAX ), BET( NBET ), G( NMAX ),
     $                   X( NMAX ), XS( NMAX*INCMAX ),
     $                   XX( NMAX*INCMAX ), Y( NMAX ),
     $                   YS( NMAX*INCMAX ), YT( NMAX ),
     $                   YY( NMAX*INCMAX )
      INTEGER            IDIM( NIDIM ), INC( NINC ), KB( NKB )
*     .. Local Scalars ..
      REAL               ALPHA, ALS, BETA, BLS, ERR, ERRMAX, TRANSL
      INTEGER            I, IA, IB, IC, IK, IN, INCX, INCXS, INCY,
     $                   INCYS, IX, IY, K, KS, LAA, LDA, LDAS, LX, LY,
     $                   N, NARGS, NC, NK, NS
      LOGICAL            BANDED, FULL, NULL, PACKED, RESET, SAME
      CHARACTER*1        UPLO, UPLOS
      CHARACTER*14       CUPLO
      CHARACTER*2        ICH
*     .. Local Arrays ..
      LOGICAL            ISAME( 13 )
*     .. External Functions ..
      LOGICAL            LSE, LSERES
      EXTERNAL           LSE, LSERES
*     .. External Subroutines ..
      EXTERNAL           SMAKE, SMVCH, CSSBMV, CSSPMV, CSSYMV
*     .. Intrinsic Functions ..
      INTRINSIC          ABS, MAX
*     .. Scalars in Common ..
      INTEGER            INFOT, NOUTC
      LOGICAL            OK
*     .. Common blocks ..
      COMMON             /INFOC/INFOT, NOUTC, OK
*     .. Data statements ..
      DATA               ICH/'UL'/
*     .. Executable Statements ..
      FULL = SNAME( 9: 9 ).EQ.'y'
      BANDED = SNAME( 9: 9 ).EQ.'b'
      PACKED = SNAME( 9: 9 ).EQ.'p'
*     Define the number of arguments.
      IF( FULL )THEN
         NARGS = 10
      ELSE IF( BANDED )THEN
         NARGS = 11
      ELSE IF( PACKED )THEN
         NARGS = 9
      END IF
*
      NC = 0
      RESET = .TRUE.
      ERRMAX = ZERO
*
      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 IC = 1, 2
               UPLO = ICH( IC: IC )
               IF (UPLO.EQ.'U')THEN
                  CUPLO = '    CblasUpper'
               ELSE 
                  CUPLO = '    CblasLower'
               END IF
*
*              Generate the matrix A.
*
               TRANSL = ZERO
               CALL SMAKE( SNAME( 8: 9 ), UPLO, ' ', N, N, A, NMAX, AA,
     $                     LDA, K, K, RESET, TRANSL )
*
               DO 80 IX = 1, NINC
                  INCX = INC( IX )
                  LX = ABS( INCX )*N
*
*                 Generate the vector X.
*
                  TRANSL = HALF
                  CALL SMAKE( '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
*
                  DO 70 IY = 1, NINC
                     INCY = INC( IY )
                     LY = ABS( INCY )*N
*
                     DO 60 IA = 1, NALF
                        ALPHA = ALF( IA )
*
                        DO 50 IB = 1, NBET
                           BETA = BET( IB )
*
*                          Generate the vector Y.
*
                           TRANSL = ZERO
                           CALL SMAKE( 'ge', ' ', ' ', 1, N, Y, 1, YY,
     $                                 ABS( INCY ), 0, N - 1, RESET,
     $                                 TRANSL )
*
                           NC = NC + 1
*
*                          Save every datum before calling the
*                          subroutine.
*
                           UPLOS = UPLO
                           NS = N
                           KS = K
                           ALS = ALPHA
                           DO 10 I = 1, LAA
                              AS( I ) = AA( I )
   10                      CONTINUE
                           LDAS = LDA
                           DO 20 I = 1, LX
                              XS( I ) = XX( I )
   20                      CONTINUE
                           INCXS = INCX
                           BLS = BETA
                           DO 30 I = 1, LY
                              YS( I ) = YY( I )
   30                      CONTINUE
                           INCYS = INCY
*
*                          Call the subroutine.
*
                           IF( FULL )THEN
                              IF( TRACE )
     $                           WRITE( NTRA, FMT = 9993 )NC, SNAME,
     $                           CUPLO, N, ALPHA, LDA, INCX, BETA, INCY
                              IF( REWI )
     $                           REWIND NTRA
                              CALL CSSYMV( IORDER, UPLO, N, ALPHA, AA,
     $                                   LDA, XX, INCX, BETA, YY, INCY )
                           ELSE IF( BANDED )THEN
                              IF( TRACE )
     $                           WRITE( NTRA, FMT = 9994 )NC, SNAME,
     $                           CUPLO, N, K, ALPHA, LDA, INCX, BETA,
     $                           INCY
                              IF( REWI )
     $                           REWIND NTRA
                              CALL CSSBMV( IORDER, UPLO, N, K, ALPHA,
     $                                    AA, LDA, XX, INCX, BETA, YY,
     $					  INCY )
                           ELSE IF( PACKED )THEN
                              IF( TRACE )
     $                           WRITE( NTRA, FMT = 9995 )NC, SNAME,
     $                           CUPLO, N, ALPHA, INCX, BETA, INCY
                              IF( REWI )
     $                           REWIND NTRA
                              CALL CSSPMV( IORDER, UPLO, N, ALPHA, AA,
     $                                    XX, INCX, BETA, YY, INCY )
                           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.