zerrst.f

来自「famous linear algebra library (LAPACK) p」· F 代码 · 共 763 行 · 第 1/3 页

      SUBROUTINE ZERRST( PATH, NUNIT )
*
*  -- LAPACK test routine (version 3.1) --
*     Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd..
*     November 2006
*
*     .. Scalar Arguments ..
      CHARACTER*3        PATH
      INTEGER            NUNIT
*     ..
*
*  Purpose
*  =======
*
*  ZERRST tests the error exits for ZHETRD, ZUNGTR, CUNMTR, ZHPTRD,
*  ZUNGTR, ZUPMTR, ZSTEQR, CSTEIN, ZPTEQR, ZHBTRD,
*  ZHEEV, CHEEVX, CHEEVD, ZHBEV, CHBEVX, CHBEVD,
*  ZHPEV, CHPEVX, CHPEVD, and ZSTEDC.
*
*  Arguments
*  =========
*
*  PATH    (input) CHARACTER*3
*          The LAPACK path name for the routines to be tested.
*
*  NUNIT   (input) INTEGER
*          The unit number for output.
*
*  =====================================================================
*
*     .. Parameters ..
      INTEGER            NMAX, LIW, LW
      PARAMETER          ( NMAX = 3, LIW = 12*NMAX, LW = 20*NMAX )
*     ..
*     .. Local Scalars ..
      CHARACTER*2        C2
      INTEGER            I, INFO, J, M, N, NT
*     ..
*     .. Local Arrays ..
      INTEGER            I1( NMAX ), I2( NMAX ), I3( NMAX ), IW( LIW )
      DOUBLE PRECISION   D( NMAX ), E( NMAX ), R( LW ), RW( LW ),
     $                   X( NMAX )
      COMPLEX*16         A( NMAX, NMAX ), C( NMAX, NMAX ),
     $                   Q( NMAX, NMAX ), TAU( NMAX ), W( LW ),
     $                   Z( NMAX, NMAX )
*     ..
*     .. External Functions ..
      LOGICAL            LSAMEN
      EXTERNAL           LSAMEN
*     ..
*     .. External Subroutines ..
      EXTERNAL           CHKXER, ZHBEV, ZHBEVD, ZHBEVX, ZHBTRD, ZHEEV,
     $                   ZHEEVD, ZHEEVR, ZHEEVX, ZHETRD, ZHPEV, ZHPEVD,
     $                   ZHPEVX, ZHPTRD, ZPTEQR, ZSTEDC, ZSTEIN, ZSTEQR,
     $                   ZUNGTR, ZUNMTR, ZUPGTR, ZUPMTR
*     ..
*     .. Scalars in Common ..
      LOGICAL            LERR, OK
      CHARACTER*6        SRNAMT
      INTEGER            INFOT, NOUT
*     ..
*     .. Common blocks ..
      COMMON             / INFOC / INFOT, NOUT, OK, LERR
      COMMON             / SRNAMC / SRNAMT
*     ..
*     .. Intrinsic Functions ..
      INTRINSIC          DBLE
*     ..
*     .. Executable Statements ..
*
      NOUT = NUNIT
      WRITE( NOUT, FMT = * )
      C2 = PATH( 2: 3 )
*
*     Set the variables to innocuous values.
*
      DO 20 J = 1, NMAX
         DO 10 I = 1, NMAX
            A( I, J ) = 1.D0 / DBLE( I+J )
   10    CONTINUE
   20 CONTINUE
      DO 30 J = 1, NMAX
         D( J ) = DBLE( J )
         E( J ) = 0.0D0
         I1( J ) = J
         I2( J ) = J
         TAU( J ) = 1.D0
   30 CONTINUE
      OK = .TRUE.
      NT = 0
*
*     Test error exits for the ST path.
*
      IF( LSAMEN( 2, C2, 'ST' ) ) THEN
*
*        ZHETRD
*
         SRNAMT = 'ZHETRD'
         INFOT = 1
         CALL ZHETRD( '/', 0, A, 1, D, E, TAU, W, 1, INFO )
         CALL CHKXER( 'ZHETRD', INFOT, NOUT, LERR, OK )
         INFOT = 2
         CALL ZHETRD( 'U', -1, A, 1, D, E, TAU, W, 1, INFO )
         CALL CHKXER( 'ZHETRD', INFOT, NOUT, LERR, OK )
         INFOT = 4
         CALL ZHETRD( 'U', 2, A, 1, D, E, TAU, W, 1, INFO )
         CALL CHKXER( 'ZHETRD', INFOT, NOUT, LERR, OK )
         INFOT = 9
         CALL ZHETRD( 'U', 0, A, 1, D, E, TAU, W, 0, INFO )
         CALL CHKXER( 'ZHETRD', INFOT, NOUT, LERR, OK )
         NT = NT + 4
*
*        ZUNGTR
*
         SRNAMT = 'ZUNGTR'
         INFOT = 1
         CALL ZUNGTR( '/', 0, A, 1, TAU, W, 1, INFO )
         CALL CHKXER( 'ZUNGTR', INFOT, NOUT, LERR, OK )
         INFOT = 2
         CALL ZUNGTR( 'U', -1, A, 1, TAU, W, 1, INFO )
         CALL CHKXER( 'ZUNGTR', INFOT, NOUT, LERR, OK )
         INFOT = 4
         CALL ZUNGTR( 'U', 2, A, 1, TAU, W, 1, INFO )
         CALL CHKXER( 'ZUNGTR', INFOT, NOUT, LERR, OK )
         INFOT = 7
         CALL ZUNGTR( 'U', 3, A, 3, TAU, W, 1, INFO )
         CALL CHKXER( 'ZUNGTR', INFOT, NOUT, LERR, OK )
         NT = NT + 4
*
*        ZUNMTR
*
         SRNAMT = 'ZUNMTR'
         INFOT = 1
         CALL ZUNMTR( '/', 'U', 'N', 0, 0, A, 1, TAU, C, 1, W, 1, INFO )
         CALL CHKXER( 'ZUNMTR', INFOT, NOUT, LERR, OK )
         INFOT = 2
         CALL ZUNMTR( 'L', '/', 'N', 0, 0, A, 1, TAU, C, 1, W, 1, INFO )
         CALL CHKXER( 'ZUNMTR', INFOT, NOUT, LERR, OK )
         INFOT = 3
         CALL ZUNMTR( 'L', 'U', '/', 0, 0, A, 1, TAU, C, 1, W, 1, INFO )
         CALL CHKXER( 'ZUNMTR', INFOT, NOUT, LERR, OK )
         INFOT = 4
         CALL ZUNMTR( 'L', 'U', 'N', -1, 0, A, 1, TAU, C, 1, W, 1,
     $                INFO )
         CALL CHKXER( 'ZUNMTR', INFOT, NOUT, LERR, OK )
         INFOT = 5
         CALL ZUNMTR( 'L', 'U', 'N', 0, -1, A, 1, TAU, C, 1, W, 1,
     $                INFO )
         CALL CHKXER( 'ZUNMTR', INFOT, NOUT, LERR, OK )
         INFOT = 7
         CALL ZUNMTR( 'L', 'U', 'N', 2, 0, A, 1, TAU, C, 2, W, 1, INFO )
         CALL CHKXER( 'ZUNMTR', INFOT, NOUT, LERR, OK )
         INFOT = 7
         CALL ZUNMTR( 'R', 'U', 'N', 0, 2, A, 1, TAU, C, 1, W, 1, INFO )
         CALL CHKXER( 'ZUNMTR', INFOT, NOUT, LERR, OK )
         INFOT = 10
         CALL ZUNMTR( 'L', 'U', 'N', 2, 0, A, 2, TAU, C, 1, W, 1, INFO )
         CALL CHKXER( 'ZUNMTR', INFOT, NOUT, LERR, OK )
         INFOT = 12
         CALL ZUNMTR( 'L', 'U', 'N', 0, 2, A, 1, TAU, C, 1, W, 1, INFO )
         CALL CHKXER( 'ZUNMTR', INFOT, NOUT, LERR, OK )
         INFOT = 12
         CALL ZUNMTR( 'R', 'U', 'N', 2, 0, A, 1, TAU, C, 2, W, 1, INFO )
         CALL CHKXER( 'ZUNMTR', INFOT, NOUT, LERR, OK )
         NT = NT + 10
*
*        ZHPTRD
*
         SRNAMT = 'ZHPTRD'
         INFOT = 1
         CALL ZHPTRD( '/', 0, A, D, E, TAU, INFO )
         CALL CHKXER( 'ZHPTRD', INFOT, NOUT, LERR, OK )
         INFOT = 2
         CALL ZHPTRD( 'U', -1, A, D, E, TAU, INFO )
         CALL CHKXER( 'ZHPTRD', INFOT, NOUT, LERR, OK )
         NT = NT + 2
*
*        ZUPGTR
*
         SRNAMT = 'ZUPGTR'
         INFOT = 1
         CALL ZUPGTR( '/', 0, A, TAU, Z, 1, W, INFO )
         CALL CHKXER( 'ZUPGTR', INFOT, NOUT, LERR, OK )
         INFOT = 2
         CALL ZUPGTR( 'U', -1, A, TAU, Z, 1, W, INFO )
         CALL CHKXER( 'ZUPGTR', INFOT, NOUT, LERR, OK )
         INFOT = 6
         CALL ZUPGTR( 'U', 2, A, TAU, Z, 1, W, INFO )
         CALL CHKXER( 'ZUPGTR', INFOT, NOUT, LERR, OK )
         NT = NT + 3
*
*        ZUPMTR
*
         SRNAMT = 'ZUPMTR'
         INFOT = 1
         CALL ZUPMTR( '/', 'U', 'N', 0, 0, A, TAU, C, 1, W, INFO )
         CALL CHKXER( 'ZUPMTR', INFOT, NOUT, LERR, OK )
         INFOT = 2
         CALL ZUPMTR( 'L', '/', 'N', 0, 0, A, TAU, C, 1, W, INFO )
         CALL CHKXER( 'ZUPMTR', INFOT, NOUT, LERR, OK )
         INFOT = 3
         CALL ZUPMTR( 'L', 'U', '/', 0, 0, A, TAU, C, 1, W, INFO )
         CALL CHKXER( 'ZUPMTR', INFOT, NOUT, LERR, OK )
         INFOT = 4
         CALL ZUPMTR( 'L', 'U', 'N', -1, 0, A, TAU, C, 1, W, INFO )
         CALL CHKXER( 'ZUPMTR', INFOT, NOUT, LERR, OK )
         INFOT = 5
         CALL ZUPMTR( 'L', 'U', 'N', 0, -1, A, TAU, C, 1, W, INFO )
         CALL CHKXER( 'ZUPMTR', INFOT, NOUT, LERR, OK )
         INFOT = 9
         CALL ZUPMTR( 'L', 'U', 'N', 2, 0, A, TAU, C, 1, W, INFO )
         CALL CHKXER( 'ZUPMTR', INFOT, NOUT, LERR, OK )
         NT = NT + 6
*
*        ZPTEQR
*
         SRNAMT = 'ZPTEQR'
         INFOT = 1
         CALL ZPTEQR( '/', 0, D, E, Z, 1, RW, INFO )
         CALL CHKXER( 'ZPTEQR', INFOT, NOUT, LERR, OK )
         INFOT = 2
         CALL ZPTEQR( 'N', -1, D, E, Z, 1, RW, INFO )
         CALL CHKXER( 'ZPTEQR', INFOT, NOUT, LERR, OK )
         INFOT = 6
         CALL ZPTEQR( 'V', 2, D, E, Z, 1, RW, INFO )
         CALL CHKXER( 'ZPTEQR', INFOT, NOUT, LERR, OK )
         NT = NT + 3
*
*        ZSTEIN
*
         SRNAMT = 'ZSTEIN'
         INFOT = 1
         CALL ZSTEIN( -1, D, E, 0, X, I1, I2, Z, 1, RW, IW, I3, INFO )
         CALL CHKXER( 'ZSTEIN', INFOT, NOUT, LERR, OK )
         INFOT = 4
         CALL ZSTEIN( 0, D, E, -1, X, I1, I2, Z, 1, RW, IW, I3, INFO )
         CALL CHKXER( 'ZSTEIN', INFOT, NOUT, LERR, OK )
         INFOT = 4
         CALL ZSTEIN( 0, D, E, 1, X, I1, I2, Z, 1, RW, IW, I3, INFO )
         CALL CHKXER( 'ZSTEIN', INFOT, NOUT, LERR, OK )
         INFOT = 9
         CALL ZSTEIN( 2, D, E, 0, X, I1, I2, Z, 1, RW, IW, I3, INFO )
         CALL CHKXER( 'ZSTEIN', INFOT, NOUT, LERR, OK )
         NT = NT + 4
*
*        ZSTEQR
*
         SRNAMT = 'ZSTEQR'
         INFOT = 1
         CALL ZSTEQR( '/', 0, D, E, Z, 1, RW, INFO )
         CALL CHKXER( 'ZSTEQR', INFOT, NOUT, LERR, OK )
         INFOT = 2
         CALL ZSTEQR( 'N', -1, D, E, Z, 1, RW, INFO )
         CALL CHKXER( 'ZSTEQR', INFOT, NOUT, LERR, OK )
         INFOT = 6