LAPACK: TESTING/LIN/cerrsy.f Source File

00001       SUBROUTINE CERRSY( 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 *  CERRSY tests the error exits for the COMPLEX 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       REAL               ANRM, RCOND
00037 *     ..
00038 *     .. Local Arrays ..
00039       INTEGER            IP( NMAX )
00040       REAL               R( NMAX ), R1( NMAX ), R2( NMAX )
00041       COMPLEX            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, CSPCON, CSPRFS, CSPTRF, CSPTRI,
00050      $                   CSPTRS, CSYCON, CSYRFS, CSYTF2, CSYTRF, CSYTRI,
00051      $                   CSYTRS
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          CMPLX, REAL
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 ) = CMPLX( 1. / REAL( I+J ), -1. / REAL( I+J ) )
00076             AF( I, J ) = CMPLX( 1. / REAL( I+J ), -1. / REAL( I+J ) )
00077    10    CONTINUE
00078          B( J ) = 0.
00079          R1( J ) = 0.
00080          R2( J ) = 0.
00081          W( J ) = 0.
00082          X( J ) = 0.
00083          IP( J ) = J
00084    20 CONTINUE
00085       ANRM = 1.0
00086       OK = .TRUE.
00087 *
00088 *     Test error exits of the routines that use the diagonal pivoting
00089 *     factorization of a symmetric indefinite matrix.
00090 *
00091       IF( LSAMEN( 2, C2, 'SY' ) ) THEN
00092 *
00093 *        CSYTRF
00094 *
00095          SRNAMT = 'CSYTRF'
00096          INFOT = 1
00097          CALL CSYTRF( '/', 0, A, 1, IP, W, 1, INFO )
00098          CALL CHKXER( 'CSYTRF', INFOT, NOUT, LERR, OK )
00099          INFOT = 2
00100          CALL CSYTRF( 'U', -1, A, 1, IP, W, 1, INFO )
00101          CALL CHKXER( 'CSYTRF', INFOT, NOUT, LERR, OK )
00102          INFOT = 4
00103          CALL CSYTRF( 'U', 2, A, 1, IP, W, 4, INFO )
00104          CALL CHKXER( 'CSYTRF', INFOT, NOUT, LERR, OK )
00105 *
00106 *        CSYTF2
00107 *
00108          SRNAMT = 'CSYTF2'
00109          INFOT = 1
00110          CALL CSYTF2( '/', 0, A, 1, IP, INFO )
00111          CALL CHKXER( 'CSYTF2', INFOT, NOUT, LERR, OK )
00112          INFOT = 2
00113          CALL CSYTF2( 'U', -1, A, 1, IP, INFO )
00114          CALL CHKXER( 'CSYTF2', INFOT, NOUT, LERR, OK )
00115          INFOT = 4
00116          CALL CSYTF2( 'U', 2, A, 1, IP, INFO )
00117          CALL CHKXER( 'CSYTF2', INFOT, NOUT, LERR, OK )
00118 *
00119 *        CSYTRI
00120 *
00121          SRNAMT = 'CSYTRI'
00122          INFOT = 1
00123          CALL CSYTRI( '/', 0, A, 1, IP, W, INFO )
00124          CALL CHKXER( 'CSYTRI', INFOT, NOUT, LERR, OK )
00125          INFOT = 2
00126          CALL CSYTRI( 'U', -1, A, 1, IP, W, INFO )
00127          CALL CHKXER( 'CSYTRI', INFOT, NOUT, LERR, OK )
00128          INFOT = 4
00129          CALL CSYTRI( 'U', 2, A, 1, IP, W, INFO )
00130          CALL CHKXER( 'CSYTRI', INFOT, NOUT, LERR, OK )
00131 *
00132 *        CSYTRS
00133 *
00134          SRNAMT = 'CSYTRS'
00135          INFOT = 1
00136          CALL CSYTRS( '/', 0, 0, A, 1, IP, B, 1, INFO )
00137          CALL CHKXER( 'CSYTRS', INFOT, NOUT, LERR, OK )
00138          INFOT = 2
00139          CALL CSYTRS( 'U', -1, 0, A, 1, IP, B, 1, INFO )
00140          CALL CHKXER( 'CSYTRS', INFOT, NOUT, LERR, OK )
00141          INFOT = 3
00142          CALL CSYTRS( 'U', 0, -1, A, 1, IP, B, 1, INFO )
00143          CALL CHKXER( 'CSYTRS', INFOT, NOUT, LERR, OK )
00144          INFOT = 5
00145          CALL CSYTRS( 'U', 2, 1, A, 1, IP, B, 2, INFO )
00146          CALL CHKXER( 'CSYTRS', INFOT, NOUT, LERR, OK )
00147          INFOT = 8
00148          CALL CSYTRS( 'U', 2, 1, A, 2, IP, B, 1, INFO )
00149          CALL CHKXER( 'CSYTRS', INFOT, NOUT, LERR, OK )
00150 *
00151 *        CSYRFS
00152 *
00153          SRNAMT = 'CSYRFS'
00154          INFOT = 1
00155          CALL CSYRFS( '/', 0, 0, A, 1, AF, 1, IP, B, 1, X, 1, R1, R2, W,
00156      $                R, INFO )
00157          CALL CHKXER( 'CSYRFS', INFOT, NOUT, LERR, OK )
00158          INFOT = 2
00159          CALL CSYRFS( 'U', -1, 0, A, 1, AF, 1, IP, B, 1, X, 1, R1, R2,
00160      $                W, R, INFO )
00161          CALL CHKXER( 'CSYRFS', INFOT, NOUT, LERR, OK )
00162          INFOT = 3
00163          CALL CSYRFS( 'U', 0, -1, A, 1, AF, 1, IP, B, 1, X, 1, R1, R2,
00164      $                W, R, INFO )
00165          CALL CHKXER( 'CSYRFS', INFOT, NOUT, LERR, OK )
00166          INFOT = 5
00167          CALL CSYRFS( 'U', 2, 1, A, 1, AF, 2, IP, B, 2, X, 2, R1, R2, W,
00168      $                R, INFO )
00169          CALL CHKXER( 'CSYRFS', INFOT, NOUT, LERR, OK )
00170          INFOT = 7
00171          CALL CSYRFS( 'U', 2, 1, A, 2, AF, 1, IP, B, 2, X, 2, R1, R2, W,
00172      $                R, INFO )
00173          CALL CHKXER( 'CSYRFS', INFOT, NOUT, LERR, OK )
00174          INFOT = 10
00175          CALL CSYRFS( 'U', 2, 1, A, 2, AF, 2, IP, B, 1, X, 2, R1, R2, W,
00176      $                R, INFO )
00177          CALL CHKXER( 'CSYRFS', INFOT, NOUT, LERR, OK )
00178          INFOT = 12
00179          CALL CSYRFS( 'U', 2, 1, A, 2, AF, 2, IP, B, 2, X, 1, R1, R2, W,
00180      $                R, INFO )
00181          CALL CHKXER( 'CSYRFS', INFOT, NOUT, LERR, OK )
00182 *
00183 *        CSYCON
00184 *
00185          SRNAMT = 'CSYCON'
00186          INFOT = 1
00187          CALL CSYCON( '/', 0, A, 1, IP, ANRM, RCOND, W, INFO )
00188          CALL CHKXER( 'CSYCON', INFOT, NOUT, LERR, OK )
00189          INFOT = 2
00190          CALL CSYCON( 'U', -1, A, 1, IP, ANRM, RCOND, W, INFO )
00191          CALL CHKXER( 'CSYCON', INFOT, NOUT, LERR, OK )
00192          INFOT = 4
00193          CALL CSYCON( 'U', 2, A, 1, IP, ANRM, RCOND, W, INFO )
00194          CALL CHKXER( 'CSYCON', INFOT, NOUT, LERR, OK )
00195          INFOT = 6
00196          CALL CSYCON( 'U', 1, A, 1, IP, -ANRM, RCOND, W, INFO )
00197          CALL CHKXER( 'CSYCON', INFOT, NOUT, LERR, OK )
00198 *
00199 *     Test error exits of the routines that use the diagonal pivoting
00200 *     factorization of a symmetric indefinite packed matrix.
00201 *
00202       ELSE IF( LSAMEN( 2, C2, 'SP' ) ) THEN
00203 *
00204 *        CSPTRF
00205 *
00206          SRNAMT = 'CSPTRF'
00207          INFOT = 1
00208          CALL CSPTRF( '/', 0, A, IP, INFO )
00209          CALL CHKXER( 'CSPTRF', INFOT, NOUT, LERR, OK )
00210          INFOT = 2
00211          CALL CSPTRF( 'U', -1, A, IP, INFO )
00212          CALL CHKXER( 'CSPTRF', INFOT, NOUT, LERR, OK )
00213 *
00214 *        CSPTRI
00215 *
00216          SRNAMT = 'CSPTRI'
00217          INFOT = 1
00218          CALL CSPTRI( '/', 0, A, IP, W, INFO )
00219          CALL CHKXER( 'CSPTRI', INFOT, NOUT, LERR, OK )
00220          INFOT = 2
00221          CALL CSPTRI( 'U', -1, A, IP, W, INFO )
00222          CALL CHKXER( 'CSPTRI', INFOT, NOUT, LERR, OK )
00223 *
00224 *        CSPTRS
00225 *
00226          SRNAMT = 'CSPTRS'
00227          INFOT = 1
00228          CALL CSPTRS( '/', 0, 0, A, IP, B, 1, INFO )
00229          CALL CHKXER( 'CSPTRS', INFOT, NOUT, LERR, OK )
00230          INFOT = 2
00231          CALL CSPTRS( 'U', -1, 0, A, IP, B, 1, INFO )
00232          CALL CHKXER( 'CSPTRS', INFOT, NOUT, LERR, OK )
00233          INFOT = 3
00234          CALL CSPTRS( 'U', 0, -1, A, IP, B, 1, INFO )
00235          CALL CHKXER( 'CSPTRS', INFOT, NOUT, LERR, OK )
00236          INFOT = 7
00237          CALL CSPTRS( 'U', 2, 1, A, IP, B, 1, INFO )
00238          CALL CHKXER( 'CSPTRS', INFOT, NOUT, LERR, OK )
00239 *
00240 *        CSPRFS
00241 *
00242          SRNAMT = 'CSPRFS'
00243          INFOT = 1
00244          CALL CSPRFS( '/', 0, 0, A, AF, IP, B, 1, X, 1, R1, R2, W, R,
00245      $                INFO )
00246          CALL CHKXER( 'CSPRFS', INFOT, NOUT, LERR, OK )
00247          INFOT = 2
00248          CALL CSPRFS( 'U', -1, 0, A, AF, IP, B, 1, X, 1, R1, R2, W, R,
00249      $                INFO )
00250          CALL CHKXER( 'CSPRFS', INFOT, NOUT, LERR, OK )
00251          INFOT = 3
00252          CALL CSPRFS( 'U', 0, -1, A, AF, IP, B, 1, X, 1, R1, R2, W, R,
00253      $                INFO )
00254          CALL CHKXER( 'CSPRFS', INFOT, NOUT, LERR, OK )
00255          INFOT = 8
00256          CALL CSPRFS( 'U', 2, 1, A, AF, IP, B, 1, X, 2, R1, R2, W, R,
00257      $                INFO )
00258          CALL CHKXER( 'CSPRFS', INFOT, NOUT, LERR, OK )
00259          INFOT = 10
00260          CALL CSPRFS( 'U', 2, 1, A, AF, IP, B, 2, X, 1, R1, R2, W, R,
00261      $                INFO )
00262          CALL CHKXER( 'CSPRFS', INFOT, NOUT, LERR, OK )
00263 *
00264 *        CSPCON
00265 *
00266          SRNAMT = 'CSPCON'
00267          INFOT = 1
00268          CALL CSPCON( '/', 0, A, IP, ANRM, RCOND, W, INFO )
00269          CALL CHKXER( 'CSPCON', INFOT, NOUT, LERR, OK )
00270          INFOT = 2
00271          CALL CSPCON( 'U', -1, A, IP, ANRM, RCOND, W, INFO )
00272          CALL CHKXER( 'CSPCON', INFOT, NOUT, LERR, OK )
00273          INFOT = 5
00274          CALL CSPCON( 'U', 1, A, IP, -ANRM, RCOND, W, INFO )
00275          CALL CHKXER( 'CSPCON', INFOT, NOUT, LERR, OK )
00276       END IF
00277 *
00278 *     Print a summary line.
00279 *
00280       CALL ALAESM( PATH, OK, NOUT )
00281 *
00282       RETURN
00283 *
00284 *     End of CERRSY
00285 *
00286       END