LAPACK: TESTING/LIN/zerrsy.f Source 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      $                   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 *        ZSYTRS
00135 *
00136          SRNAMT = 'ZSYTRS'
00137          INFOT = 1
00138          CALL ZSYTRS( '/', 0, 0, A, 1, IP, B, 1, INFO )
00139          CALL CHKXER( 'ZSYTRS', INFOT, NOUT, LERR, OK )
00140          INFOT = 2
00141          CALL ZSYTRS( 'U', -1, 0, A, 1, IP, B, 1, INFO )
00142          CALL CHKXER( 'ZSYTRS', INFOT, NOUT, LERR, OK )
00143          INFOT = 3
00144          CALL ZSYTRS( 'U', 0, -1, A, 1, IP, B, 1, INFO )
00145          CALL CHKXER( 'ZSYTRS', INFOT, NOUT, LERR, OK )
00146          INFOT = 5
00147          CALL ZSYTRS( 'U', 2, 1, A, 1, IP, B, 2, INFO )
00148          CALL CHKXER( 'ZSYTRS', INFOT, NOUT, LERR, OK )
00149          INFOT = 8
00150          CALL ZSYTRS( 'U', 2, 1, A, 2, IP, B, 1, INFO )
00151          CALL CHKXER( 'ZSYTRS', INFOT, NOUT, LERR, OK )
00152 *
00153 *        ZSYRFS
00154 *
00155          SRNAMT = 'ZSYRFS'
00156          INFOT = 1
00157          CALL ZSYRFS( '/', 0, 0, A, 1, AF, 1, IP, B, 1, X, 1, R1, R2, W,
00158      $                R, INFO )
00159          CALL CHKXER( 'ZSYRFS', INFOT, NOUT, LERR, OK )
00160          INFOT = 2
00161          CALL ZSYRFS( 'U', -1, 0, A, 1, AF, 1, IP, B, 1, X, 1, R1, R2,
00162      $                W, R, INFO )
00163          CALL CHKXER( 'ZSYRFS', INFOT, NOUT, LERR, OK )
00164          INFOT = 3
00165          CALL ZSYRFS( 'U', 0, -1, A, 1, AF, 1, IP, B, 1, X, 1, R1, R2,
00166      $                W, R, INFO )
00167          CALL CHKXER( 'ZSYRFS', INFOT, NOUT, LERR, OK )
00168          INFOT = 5
00169          CALL ZSYRFS( 'U', 2, 1, A, 1, AF, 2, IP, B, 2, X, 2, R1, R2, W,
00170      $                R, INFO )
00171          CALL CHKXER( 'ZSYRFS', INFOT, NOUT, LERR, OK )
00172          INFOT = 7
00173          CALL ZSYRFS( 'U', 2, 1, A, 2, AF, 1, IP, B, 2, X, 2, R1, R2, W,
00174      $                R, INFO )
00175          CALL CHKXER( 'ZSYRFS', INFOT, NOUT, LERR, OK )
00176          INFOT = 10
00177          CALL ZSYRFS( 'U', 2, 1, A, 2, AF, 2, IP, B, 1, X, 2, R1, R2, W,
00178      $                R, INFO )
00179          CALL CHKXER( 'ZSYRFS', INFOT, NOUT, LERR, OK )
00180          INFOT = 12
00181          CALL ZSYRFS( 'U', 2, 1, A, 2, AF, 2, IP, B, 2, X, 1, R1, R2, W,
00182      $                R, INFO )
00183          CALL CHKXER( 'ZSYRFS', INFOT, NOUT, LERR, OK )
00184 *
00185 *        ZSYCON
00186 *
00187          SRNAMT = 'ZSYCON'
00188          INFOT = 1
00189          CALL ZSYCON( '/', 0, A, 1, IP, ANRM, RCOND, W, INFO )
00190          CALL CHKXER( 'ZSYCON', INFOT, NOUT, LERR, OK )
00191          INFOT = 2
00192          CALL ZSYCON( 'U', -1, A, 1, IP, ANRM, RCOND, W, INFO )
00193          CALL CHKXER( 'ZSYCON', INFOT, NOUT, LERR, OK )
00194          INFOT = 4
00195          CALL ZSYCON( 'U', 2, A, 1, IP, ANRM, RCOND, W, INFO )
00196          CALL CHKXER( 'ZSYCON', INFOT, NOUT, LERR, OK )
00197          INFOT = 6
00198          CALL ZSYCON( 'U', 1, A, 1, IP, -ANRM, RCOND, W, INFO )
00199          CALL CHKXER( 'ZSYCON', INFOT, NOUT, LERR, OK )
00200 *
00201 *     Test error exits of the routines that use the diagonal pivoting
00202 *     factorization of a symmetric indefinite packed matrix.
00203 *
00204       ELSE IF( LSAMEN( 2, C2, 'SP' ) ) THEN
00205 *
00206 *        ZSPTRF
00207 *
00208          SRNAMT = 'ZSPTRF'
00209          INFOT = 1
00210          CALL ZSPTRF( '/', 0, A, IP, INFO )
00211          CALL CHKXER( 'ZSPTRF', INFOT, NOUT, LERR, OK )
00212          INFOT = 2
00213          CALL ZSPTRF( 'U', -1, A, IP, INFO )
00214          CALL CHKXER( 'ZSPTRF', INFOT, NOUT, LERR, OK )
00215 *
00216 *        ZSPTRI
00217 *
00218          SRNAMT = 'ZSPTRI'
00219          INFOT = 1
00220          CALL ZSPTRI( '/', 0, A, IP, W, INFO )
00221          CALL CHKXER( 'ZSPTRI', INFOT, NOUT, LERR, OK )
00222          INFOT = 2
00223          CALL ZSPTRI( 'U', -1, A, IP, W, INFO )
00224          CALL CHKXER( 'ZSPTRI', INFOT, NOUT, LERR, OK )
00225 *
00226 *        ZSPTRS
00227 *
00228          SRNAMT = 'ZSPTRS'
00229          INFOT = 1
00230          CALL ZSPTRS( '/', 0, 0, A, IP, B, 1, INFO )
00231          CALL CHKXER( 'ZSPTRS', INFOT, NOUT, LERR, OK )
00232          INFOT = 2
00233          CALL ZSPTRS( 'U', -1, 0, A, IP, B, 1, INFO )
00234          CALL CHKXER( 'ZSPTRS', INFOT, NOUT, LERR, OK )
00235          INFOT = 3
00236          CALL ZSPTRS( 'U', 0, -1, A, IP, B, 1, INFO )
00237          CALL CHKXER( 'ZSPTRS', INFOT, NOUT, LERR, OK )
00238          INFOT = 7
00239          CALL ZSPTRS( 'U', 2, 1, A, IP, B, 1, INFO )
00240          CALL CHKXER( 'ZSPTRS', INFOT, NOUT, LERR, OK )
00241 *
00242 *        ZSPRFS
00243 *
00244          SRNAMT = 'ZSPRFS'
00245          INFOT = 1
00246          CALL ZSPRFS( '/', 0, 0, A, AF, IP, B, 1, X, 1, R1, R2, W, R,
00247      $                INFO )
00248          CALL CHKXER( 'ZSPRFS', INFOT, NOUT, LERR, OK )
00249          INFOT = 2
00250          CALL ZSPRFS( 'U', -1, 0, A, AF, IP, B, 1, X, 1, R1, R2, W, R,
00251      $                INFO )
00252          CALL CHKXER( 'ZSPRFS', INFOT, NOUT, LERR, OK )
00253          INFOT = 3
00254          CALL ZSPRFS( 'U', 0, -1, A, AF, IP, B, 1, X, 1, R1, R2, W, R,
00255      $                INFO )
00256          CALL CHKXER( 'ZSPRFS', INFOT, NOUT, LERR, OK )
00257          INFOT = 8
00258          CALL ZSPRFS( 'U', 2, 1, A, AF, IP, B, 1, X, 2, R1, R2, W, R,
00259      $                INFO )
00260          CALL CHKXER( 'ZSPRFS', INFOT, NOUT, LERR, OK )
00261          INFOT = 10
00262          CALL ZSPRFS( 'U', 2, 1, A, AF, IP, B, 2, X, 1, R1, R2, W, R,
00263      $                INFO )
00264          CALL CHKXER( 'ZSPRFS', INFOT, NOUT, LERR, OK )
00265 *
00266 *        ZSPCON
00267 *
00268          SRNAMT = 'ZSPCON'
00269          INFOT = 1
00270          CALL ZSPCON( '/', 0, A, IP, ANRM, RCOND, W, INFO )
00271          CALL CHKXER( 'ZSPCON', INFOT, NOUT, LERR, OK )
00272          INFOT = 2
00273          CALL ZSPCON( 'U', -1, A, IP, ANRM, RCOND, W, INFO )
00274          CALL CHKXER( 'ZSPCON', INFOT, NOUT, LERR, OK )
00275          INFOT = 5
00276          CALL ZSPCON( 'U', 1, A, IP, -ANRM, RCOND, W, INFO )
00277          CALL CHKXER( 'ZSPCON', INFOT, NOUT, LERR, OK )
00278       END IF
00279 *
00280 *     Print a summary line.
00281 *
00282       CALL ALAESM( PATH, OK, NOUT )
00283 *
00284       RETURN
00285 *
00286 *     End of ZERRSY
00287 *
00288       END