LAPACK: TESTING/LIN/zerrsy.f Source File

Go to the documentation of this file.
00001       SUBROUTINE ZERRSY( PATH, NUNIT )
00002 *
00003 *  -- LAPACK test routine (version 3.1) --
00004 *     Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd..
00005 *     November 2006
00006 *
00007 *     .. Scalar Arguments ..
00008       CHARACTER*3        PATH
00009       INTEGER            NUNIT
00010 *     ..
00011 *
00012 *  Purpose
00013 *  =======
00014 *
00015 *  ZERRSY tests the error exits for the COMPLEX*16 routines
00016 *  for symmetric indefinite matrices.
00017 *
00018 *  Arguments
00019 *  =========
00020 *
00021 *  PATH    (input) CHARACTER*3
00022 *          The LAPACK path name for the routines to be tested.
00023 *
00024 *  NUNIT   (input) INTEGER
00025 *          The unit number for output.
00026 *
00027 *  =====================================================================
00028 *
00029 *     .. Parameters ..
00030       INTEGER            NMAX
00031       PARAMETER          ( NMAX = 4 )
00032 *     ..
00033 *     .. Local Scalars ..
00034       CHARACTER*2        C2
00035       INTEGER            I, INFO, J
00036       DOUBLE PRECISION   ANRM, RCOND
00037 *     ..
00038 *     .. Local Arrays ..
00039       INTEGER            IP( NMAX )
00040       DOUBLE PRECISION   R( NMAX ), R1( NMAX ), R2( NMAX )
00041       COMPLEX*16         A( NMAX, NMAX ), AF( NMAX, NMAX ), B( NMAX ),
00042      $                   W( 2*NMAX ), X( NMAX )
00043 *     ..
00044 *     .. External Functions ..
00045       LOGICAL            LSAMEN
00046       EXTERNAL           LSAMEN
00047 *     ..
00048 *     .. External Subroutines ..
00049       EXTERNAL           ALAESM, CHKXER, ZSPCON, ZSPRFS, ZSPTRF, ZSPTRI,
00050      $                   ZSPTRS, ZSYCON, ZSYRFS, ZSYTF2, ZSYTRF, ZSYTRI,
00051      $                   ZSYTRI2, ZSYTRS
00052 *     ..
00053 *     .. Scalars in Common ..
00054       LOGICAL            LERR, OK
00055       CHARACTER*32       SRNAMT
00056       INTEGER            INFOT, NOUT
00057 *     ..
00058 *     .. Common blocks ..
00059       COMMON             / INFOC / INFOT, NOUT, OK, LERR
00060       COMMON             / SRNAMC / SRNAMT
00061 *     ..
00062 *     .. Intrinsic Functions ..
00063       INTRINSIC          DBLE, DCMPLX
00064 *     ..
00065 *     .. Executable Statements ..
00066 *
00067       NOUT = NUNIT
00068       WRITE( NOUT, FMT = * )
00069       C2 = PATH( 2: 3 )
00070 *
00071 *     Set the variables to innocuous values.
00072 *
00073       DO 20 J = 1, NMAX
00074          DO 10 I = 1, NMAX
00075             A( I, J ) = DCMPLX( 1.D0 / DBLE( I+J ),
00076      $                  -1.D0 / DBLE( I+J ) )
00077             AF( I, J ) = DCMPLX( 1.D0 / DBLE( I+J ),
00078      $                   -1.D0 / DBLE( I+J ) )
00079    10    CONTINUE
00080          B( J ) = 0.D0
00081          R1( J ) = 0.D0
00082          R2( J ) = 0.D0
00083          W( J ) = 0.D0
00084          X( J ) = 0.D0
00085          IP( J ) = J
00086    20 CONTINUE
00087       ANRM = 1.0D0
00088       OK = .TRUE.
00089 *
00090 *     Test error exits of the routines that use the diagonal pivoting
00091 *     factorization of a symmetric indefinite matrix.
00092 *
00093       IF( LSAMEN( 2, C2, 'SY' ) ) THEN
00094 *
00095 *        ZSYTRF
00096 *
00097          SRNAMT = 'ZSYTRF'
00098          INFOT = 1
00099          CALL ZSYTRF( '/', 0, A, 1, IP, W, 1, INFO )
00100          CALL CHKXER( 'ZSYTRF', INFOT, NOUT, LERR, OK )
00101          INFOT = 2
00102          CALL ZSYTRF( 'U', -1, A, 1, IP, W, 1, INFO )
00103          CALL CHKXER( 'ZSYTRF', INFOT, NOUT, LERR, OK )
00104          INFOT = 4
00105          CALL ZSYTRF( 'U', 2, A, 1, IP, W, 4, INFO )
00106          CALL CHKXER( 'ZSYTRF', INFOT, NOUT, LERR, OK )
00107 *
00108 *        ZSYTF2
00109 *
00110          SRNAMT = 'ZSYTF2'
00111          INFOT = 1
00112          CALL ZSYTF2( '/', 0, A, 1, IP, INFO )
00113          CALL CHKXER( 'ZSYTF2', INFOT, NOUT, LERR, OK )
00114          INFOT = 2
00115          CALL ZSYTF2( 'U', -1, A, 1, IP, INFO )
00116          CALL CHKXER( 'ZSYTF2', INFOT, NOUT, LERR, OK )
00117          INFOT = 4
00118          CALL ZSYTF2( 'U', 2, A, 1, IP, INFO )
00119          CALL CHKXER( 'ZSYTF2', INFOT, NOUT, LERR, OK )
00120 *
00121 *        ZSYTRI
00122 *
00123          SRNAMT = 'ZSYTRI'
00124          INFOT = 1
00125          CALL ZSYTRI( '/', 0, A, 1, IP, W, INFO )
00126          CALL CHKXER( 'ZSYTRI', INFOT, NOUT, LERR, OK )
00127          INFOT = 2
00128          CALL ZSYTRI( 'U', -1, A, 1, IP, W, INFO )
00129          CALL CHKXER( 'ZSYTRI', INFOT, NOUT, LERR, OK )
00130          INFOT = 4
00131          CALL ZSYTRI( 'U', 2, A, 1, IP, W, INFO )
00132          CALL CHKXER( 'ZSYTRI', INFOT, NOUT, LERR, OK )
00133 *
00134 *        ZSYTRI2
00135 *
00136          SRNAMT = 'ZSYTRI2'
00137          INFOT = 1
00138          CALL ZSYTRI2( '/', 0, A, 1, IP, W, 1, INFO )
00139          CALL CHKXER( 'ZSYTRI2', INFOT, NOUT, LERR, OK )
00140          INFOT = 2
00141          CALL ZSYTRI2( 'U', -1, A, 1, IP, W, 1, INFO )
00142          CALL CHKXER( 'ZSYTRI2', INFOT, NOUT, LERR, OK )
00143          INFOT = 4
00144          CALL ZSYTRI2( 'U', 2, A, 1, IP, W, 1, INFO )
00145          CALL CHKXER( 'ZSYTRI2', INFOT, NOUT, LERR, OK )
00146 *
00147 *        ZSYTRS
00148 *
00149          SRNAMT = 'ZSYTRS'
00150          INFOT = 1
00151          CALL ZSYTRS( '/', 0, 0, A, 1, IP, B, 1, INFO )
00152          CALL CHKXER( 'ZSYTRS', INFOT, NOUT, LERR, OK )
00153          INFOT = 2
00154          CALL ZSYTRS( 'U', -1, 0, A, 1, IP, B, 1, INFO )
00155          CALL CHKXER( 'ZSYTRS', INFOT, NOUT, LERR, OK )
00156          INFOT = 3
00157          CALL ZSYTRS( 'U', 0, -1, A, 1, IP, B, 1, INFO )
00158          CALL CHKXER( 'ZSYTRS', INFOT, NOUT, LERR, OK )
00159          INFOT = 5
00160          CALL ZSYTRS( 'U', 2, 1, A, 1, IP, B, 2, INFO )
00161          CALL CHKXER( 'ZSYTRS', INFOT, NOUT, LERR, OK )
00162          INFOT = 8
00163          CALL ZSYTRS( 'U', 2, 1, A, 2, IP, B, 1, INFO )
00164          CALL CHKXER( 'ZSYTRS', INFOT, NOUT, LERR, OK )
00165 *
00166 *        ZSYRFS
00167 *
00168          SRNAMT = 'ZSYRFS'
00169          INFOT = 1
00170          CALL ZSYRFS( '/', 0, 0, A, 1, AF, 1, IP, B, 1, X, 1, R1, R2, W,
00171      $                R, INFO )
00172          CALL CHKXER( 'ZSYRFS', INFOT, NOUT, LERR, OK )
00173          INFOT = 2
00174          CALL ZSYRFS( 'U', -1, 0, A, 1, AF, 1, IP, B, 1, X, 1, R1, R2,
00175      $                W, R, INFO )
00176          CALL CHKXER( 'ZSYRFS', INFOT, NOUT, LERR, OK )
00177          INFOT = 3
00178          CALL ZSYRFS( 'U', 0, -1, A, 1, AF, 1, IP, B, 1, X, 1, R1, R2,
00179      $                W, R, INFO )
00180          CALL CHKXER( 'ZSYRFS', INFOT, NOUT, LERR, OK )
00181          INFOT = 5
00182          CALL ZSYRFS( 'U', 2, 1, A, 1, AF, 2, IP, B, 2, X, 2, R1, R2, W,
00183      $                R, INFO )
00184          CALL CHKXER( 'ZSYRFS', INFOT, NOUT, LERR, OK )
00185          INFOT = 7
00186          CALL ZSYRFS( 'U', 2, 1, A, 2, AF, 1, IP, B, 2, X, 2, R1, R2, W,
00187      $                R, INFO )
00188          CALL CHKXER( 'ZSYRFS', INFOT, NOUT, LERR, OK )
00189          INFOT = 10
00190          CALL ZSYRFS( 'U', 2, 1, A, 2, AF, 2, IP, B, 1, X, 2, R1, R2, W,
00191      $                R, INFO )
00192          CALL CHKXER( 'ZSYRFS', INFOT, NOUT, LERR, OK )
00193          INFOT = 12
00194          CALL ZSYRFS( 'U', 2, 1, A, 2, AF, 2, IP, B, 2, X, 1, R1, R2, W,
00195      $                R, INFO )
00196          CALL CHKXER( 'ZSYRFS', INFOT, NOUT, LERR, OK )
00197 *
00198 *        ZSYCON
00199 *
00200          SRNAMT = 'ZSYCON'
00201          INFOT = 1
00202          CALL ZSYCON( '/', 0, A, 1, IP, ANRM, RCOND, W, INFO )
00203          CALL CHKXER( 'ZSYCON', INFOT, NOUT, LERR, OK )
00204          INFOT = 2
00205          CALL ZSYCON( 'U', -1, A, 1, IP, ANRM, RCOND, W, INFO )
00206          CALL CHKXER( 'ZSYCON', INFOT, NOUT, LERR, OK )
00207          INFOT = 4
00208          CALL ZSYCON( 'U', 2, A, 1, IP, ANRM, RCOND, W, INFO )
00209          CALL CHKXER( 'ZSYCON', INFOT, NOUT, LERR, OK )
00210          INFOT = 6
00211          CALL ZSYCON( 'U', 1, A, 1, IP, -ANRM, RCOND, W, INFO )
00212          CALL CHKXER( 'ZSYCON', INFOT, NOUT, LERR, OK )
00213 *
00214 *     Test error exits of the routines that use the diagonal pivoting
00215 *     factorization of a symmetric indefinite packed matrix.
00216 *
00217       ELSE IF( LSAMEN( 2, C2, 'SP' ) ) THEN
00218 *
00219 *        ZSPTRF
00220 *
00221          SRNAMT = 'ZSPTRF'
00222          INFOT = 1
00223          CALL ZSPTRF( '/', 0, A, IP, INFO )
00224          CALL CHKXER( 'ZSPTRF', INFOT, NOUT, LERR, OK )
00225          INFOT = 2
00226          CALL ZSPTRF( 'U', -1, A, IP, INFO )
00227          CALL CHKXER( 'ZSPTRF', INFOT, NOUT, LERR, OK )
00228 *
00229 *        ZSPTRI
00230 *
00231          SRNAMT = 'ZSPTRI'
00232          INFOT = 1
00233          CALL ZSPTRI( '/', 0, A, IP, W, INFO )
00234          CALL CHKXER( 'ZSPTRI', INFOT, NOUT, LERR, OK )
00235          INFOT = 2
00236          CALL ZSPTRI( 'U', -1, A, IP, W, INFO )
00237          CALL CHKXER( 'ZSPTRI', INFOT, NOUT, LERR, OK )
00238 *
00239 *        ZSPTRS
00240 *
00241          SRNAMT = 'ZSPTRS'
00242          INFOT = 1
00243          CALL ZSPTRS( '/', 0, 0, A, IP, B, 1, INFO )
00244          CALL CHKXER( 'ZSPTRS', INFOT, NOUT, LERR, OK )
00245          INFOT = 2
00246          CALL ZSPTRS( 'U', -1, 0, A, IP, B, 1, INFO )
00247          CALL CHKXER( 'ZSPTRS', INFOT, NOUT, LERR, OK )
00248          INFOT = 3
00249          CALL ZSPTRS( 'U', 0, -1, A, IP, B, 1, INFO )
00250          CALL CHKXER( 'ZSPTRS', INFOT, NOUT, LERR, OK )
00251          INFOT = 7
00252          CALL ZSPTRS( 'U', 2, 1, A, IP, B, 1, INFO )
00253          CALL CHKXER( 'ZSPTRS', INFOT, NOUT, LERR, OK )
00254 *
00255 *        ZSPRFS
00256 *
00257          SRNAMT = 'ZSPRFS'
00258          INFOT = 1
00259          CALL ZSPRFS( '/', 0, 0, A, AF, IP, B, 1, X, 1, R1, R2, W, R,
00260      $                INFO )
00261          CALL CHKXER( 'ZSPRFS', INFOT, NOUT, LERR, OK )
00262          INFOT = 2
00263          CALL ZSPRFS( 'U', -1, 0, A, AF, IP, B, 1, X, 1, R1, R2, W, R,
00264      $                INFO )
00265          CALL CHKXER( 'ZSPRFS', INFOT, NOUT, LERR, OK )
00266          INFOT = 3
00267          CALL ZSPRFS( 'U', 0, -1, A, AF, IP, B, 1, X, 1, R1, R2, W, R,
00268      $                INFO )
00269          CALL CHKXER( 'ZSPRFS', INFOT, NOUT, LERR, OK )
00270          INFOT = 8
00271          CALL ZSPRFS( 'U', 2, 1, A, AF, IP, B, 1, X, 2, R1, R2, W, R,
00272      $                INFO )
00273          CALL CHKXER( 'ZSPRFS', INFOT, NOUT, LERR, OK )
00274          INFOT = 10
00275          CALL ZSPRFS( 'U', 2, 1, A, AF, IP, B, 2, X, 1, R1, R2, W, R,
00276      $                INFO )
00277          CALL CHKXER( 'ZSPRFS', INFOT, NOUT, LERR, OK )
00278 *
00279 *        ZSPCON
00280 *
00281          SRNAMT = 'ZSPCON'
00282          INFOT = 1
00283          CALL ZSPCON( '/', 0, A, IP, ANRM, RCOND, W, INFO )
00284          CALL CHKXER( 'ZSPCON', INFOT, NOUT, LERR, OK )
00285          INFOT = 2
00286          CALL ZSPCON( 'U', -1, A, IP, ANRM, RCOND, W, INFO )
00287          CALL CHKXER( 'ZSPCON', INFOT, NOUT, LERR, OK )
00288          INFOT = 5
00289          CALL ZSPCON( 'U', 1, A, IP, -ANRM, RCOND, W, INFO )
00290          CALL CHKXER( 'ZSPCON', INFOT, NOUT, LERR, OK )
00291       END IF
00292 *
00293 *     Print a summary line.
00294 *
00295       CALL ALAESM( PATH, OK, NOUT )
00296 *
00297       RETURN
00298 *
00299 *     End of ZERRSY
00300 *
00301       END