LAPACK  3.4.1
LAPACK: Linear Algebra PACKage
serrps.f
Go to the documentation of this file.
00001 *> \brief \b SERRPS
00002 *
00003 *  =========== DOCUMENTATION ===========
00004 *
00005 * Online html documentation available at 
00006 *            http://www.netlib.org/lapack/explore-html/ 
00007 *
00008 *  Definition:
00009 *  ===========
00010 *
00011 *       SUBROUTINE SERRPS( PATH, NUNIT )
00012 * 
00013 *       .. Scalar Arguments ..
00014 *       INTEGER            NUNIT
00015 *       CHARACTER*3        PATH
00016 *       ..
00017 *  
00018 *
00019 *> \par Purpose:
00020 *  =============
00021 *>
00022 *> \verbatim
00023 *>
00024 *> SERRPS tests the error exits for the REAL routines
00025 *> for SPSTRF..
00026 *> \endverbatim
00027 *
00028 *  Arguments:
00029 *  ==========
00030 *
00031 *> \param[in] PATH
00032 *> \verbatim
00033 *>          PATH is CHARACTER*3
00034 *>          The LAPACK path name for the routines to be tested.
00035 *> \endverbatim
00036 *>
00037 *> \param[in] NUNIT
00038 *> \verbatim
00039 *>          NUNIT is INTEGER
00040 *>          The unit number for output.
00041 *> \endverbatim
00042 *
00043 *  Authors:
00044 *  ========
00045 *
00046 *> \author Univ. of Tennessee 
00047 *> \author Univ. of California Berkeley 
00048 *> \author Univ. of Colorado Denver 
00049 *> \author NAG Ltd. 
00050 *
00051 *> \date November 2011
00052 *
00053 *> \ingroup single_lin
00054 *
00055 *  =====================================================================
00056       SUBROUTINE SERRPS( PATH, NUNIT )
00057 *
00058 *  -- LAPACK test routine (version 3.4.0) --
00059 *  -- LAPACK is a software package provided by Univ. of Tennessee,    --
00060 *  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
00061 *     November 2011
00062 *
00063 *     .. Scalar Arguments ..
00064       INTEGER            NUNIT
00065       CHARACTER*3        PATH
00066 *     ..
00067 *
00068 *  =====================================================================
00069 *
00070 *     .. Parameters ..
00071       INTEGER            NMAX
00072       PARAMETER          ( NMAX = 4 )
00073 *     ..
00074 *     .. Local Scalars ..
00075       INTEGER            I, INFO, J, RANK
00076 *     ..
00077 *     .. Local Arrays ..
00078       REAL               A( NMAX, NMAX ), WORK( 2*NMAX )
00079       INTEGER            PIV( NMAX )
00080 *     ..
00081 *     .. External Subroutines ..
00082       EXTERNAL           ALAESM, CHKXER, SPSTF2, SPSTRF
00083 *     ..
00084 *     .. Scalars in Common ..
00085       INTEGER            INFOT, NOUT
00086       LOGICAL            LERR, OK
00087       CHARACTER*32       SRNAMT
00088 *     ..
00089 *     .. Common blocks ..
00090       COMMON             / INFOC / INFOT, NOUT, OK, LERR
00091       COMMON             / SRNAMC / SRNAMT
00092 *     ..
00093 *     .. Intrinsic Functions ..
00094       INTRINSIC          REAL
00095 *     ..
00096 *     .. Executable Statements ..
00097 *
00098       NOUT = NUNIT
00099       WRITE( NOUT, FMT = * )
00100 *
00101 *     Set the variables to innocuous values.
00102 *
00103       DO 110 J = 1, NMAX
00104          DO 100 I = 1, NMAX
00105             A( I, J ) = 1.0 / REAL( I+J )
00106 *
00107   100    CONTINUE
00108          PIV( J ) = J
00109          WORK( J ) = 0.
00110          WORK( NMAX+J ) = 0.
00111 *
00112   110 CONTINUE
00113       OK = .TRUE.
00114 *
00115 *
00116 *        Test error exits of the routines that use the Cholesky
00117 *        decomposition of a symmetric positive semidefinite matrix.
00118 *
00119 *        SPSTRF
00120 *
00121       SRNAMT = 'SPSTRF'
00122       INFOT = 1
00123       CALL SPSTRF( '/', 0, A, 1, PIV, RANK, -1.0, WORK, INFO )
00124       CALL CHKXER( 'SPSTRF', INFOT, NOUT, LERR, OK )
00125       INFOT = 2
00126       CALL SPSTRF( 'U', -1, A, 1, PIV, RANK, -1.0, WORK, INFO )
00127       CALL CHKXER( 'SPSTRF', INFOT, NOUT, LERR, OK )
00128       INFOT = 4
00129       CALL SPSTRF( 'U', 2, A, 1, PIV, RANK, -1.0, WORK, INFO )
00130       CALL CHKXER( 'SPSTRF', INFOT, NOUT, LERR, OK )
00131 *
00132 *        SPSTF2
00133 *
00134       SRNAMT = 'SPSTF2'
00135       INFOT = 1
00136       CALL SPSTF2( '/', 0, A, 1, PIV, RANK, -1.0, WORK, INFO )
00137       CALL CHKXER( 'SPSTF2', INFOT, NOUT, LERR, OK )
00138       INFOT = 2
00139       CALL SPSTF2( 'U', -1, A, 1, PIV, RANK, -1.0, WORK, INFO )
00140       CALL CHKXER( 'SPSTF2', INFOT, NOUT, LERR, OK )
00141       INFOT = 4
00142       CALL SPSTF2( 'U', 2, A, 1, PIV, RANK, -1.0, WORK, INFO )
00143       CALL CHKXER( 'SPSTF2', INFOT, NOUT, LERR, OK )
00144 *
00145 *
00146 *     Print a summary line.
00147 *
00148       CALL ALAESM( PATH, OK, NOUT )
00149 *
00150       RETURN
00151 *
00152 *     End of SERRPS
00153 *
00154       END
 All Files Functions