cerrvx.f

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      SUBROUTINE cerrvx( PATH, NUNIT )
*
      include 'plasmaf.h'
*
*  -- LAPACK test routine (version 3.1.1) --
*     Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd..
*     January 2007
*
*     .. Scalar Arguments ..
      CHARACTER*3        path
      INTEGER            nunit
*     ..
*
*  Purpose
*  =======
*
*  CERRVX tests the error exits for the COMPLEX driver routines
*  for solving linear systems of equations.
*
*  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
      parameter( nmax = 4 )
*     ..
*     .. Local Scalars ..
      CHARACTER          eq
      CHARACTER*2        c2
      INTEGER            i, info, j
      REAL               rcond
*     ..
*     .. Local Arrays ..
      INTEGER            hl( 2 ), hpiv( 2 )
      INTEGER            ip( nmax )
      REAL               c( nmax ), r( nmax ), r1( nmax ), r2( nmax ),
     $                   rf( nmax ), rw( nmax )
      COMPLEX            a( nmax, nmax ), af( nmax, nmax ), b( nmax ),
     $                   w( 2*nmax ), x( nmax ), iw( nmax )
*     ..
*     .. External Functions ..
      LOGICAL            lsamen
      EXTERNAL           lsamen
*     ..
*     .. External Subroutines ..
      EXTERNAL           cgbsv, cgbsvx, cgesv, cgesvx, cgtsv, cgtsvx,
     $                   chesv, chesvx, chkxer, chpsv, chpsvx, cpbsv,
     $                   cpbsvx, cposv, cposvx, cppsv, cppsvx, cptsv,
     $                   cptsvx, cspsv, cspsvx, csysv, csysvx
*     ..
*     .. Scalars in Common ..
      LOGICAL            lerr, ok
      CHARACTER*32       srnamt
      INTEGER            infot, nout
*     ..
*     .. Common blocks ..
      common             / infoc / infot, nout, ok, lerr
      common             / srnamc / srnamt
*     ..
*     .. Intrinsic Functions ..
      INTRINSIC          cmplx, real
*     ..
*     .. Executable Statements ..
*
      nout = nunit
      WRITE( nout, fmt = * )
      c2 = path( 2: 3 )
*
*     Disable PLASMA warnings/errors
* 
      CALL plasma_disable( plasma_warnings, info )
      CALL plasma_disable( plasma_errors,   info )
*
*     Set the variables to innocuous values.
*
      DO 20 j = 1, nmax
         DO 10 i = 1, nmax
            a( i, j ) = cmplx( 1. / REAL( I+J ), -1. / REAL( I+J ) )
            af( i, j ) = cmplx( 1. / REAL( I+J ), -1. / REAL( I+J ) )
   10    continue
         b( j ) = 0.
         r1( j ) = 0.
         r2( j ) = 0.
         w( j ) = 0.
         x( j ) = 0.
         c( j ) = 0.
         r( j ) = 0.
         ip( j ) = j
   20 continue
      eq = ' '
      ok = .true.
*
      IF( lsamen( 2, c2, 'GE' ) ) THEN
*
*        ALLOCATE HL and HPIV
*
         CALL plasma_alloc_workspace_cgetrf_incpiv( 
     $        2, 1, hl, hpiv, info )
*
*
*        CGESV
*
         srnamt = 'CGESV '
         infot = 1
         CALL plasma_cgesv_incpiv( -1, 0, a, 1, hl, hpiv, b, 1, info )
         CALL chkxer( 'CGESV ', infot, nout, info, ok )
         infot = 2
         CALL plasma_cgesv_incpiv( 0, -1, a, 1, hl, hpiv, b, 1, info )
         CALL chkxer( 'CGESV ', infot, nout, info, ok )
         infot = 4
         CALL plasma_cgesv_incpiv( 2, 1, a, 1, hl, hpiv, b, 2, info )
         CALL chkxer( 'CGESV ', infot, nout, info, ok )
         infot = 8
         CALL plasma_cgesv_incpiv( 2, 1, a, 2, hl, hpiv, b, 1, info )
         CALL chkxer( 'CGESV ', infot, nout, info, ok )
*
*        DEALLOCATE HL and HPIV
*
         CALL plasma_dealloc_handle( hl, info )
         CALL plasma_dealloc_handle( hpiv, info )
*
*
*        CGESV
*
         srnamt = 'CGESV '
         infot = 1
         CALL plasma_cgesv( -1, 0, a, 1, iwork, b, 1, info )
         CALL chkxer( 'CGESV ', infot, nout, info, ok )
         infot = 2
         CALL plasma_cgesv( 0, -1, a, 1, iwork, b, 1, info )
         CALL chkxer( 'CGESV ', infot, nout, info, ok )
         infot = 4
         CALL plasma_cgesv( 2, 1, a, 1, iwork, b, 2, info )
         CALL chkxer( 'CGESV ', infot, nout, info, ok )
         infot = 8
         CALL plasma_cgesv( 2, 1, a, 2, iwork, b, 1, info )
         CALL chkxer( 'CGESV ', infot, nout, info, ok )
*
      ELSE IF( lsamen( 2, c2, 'PO' ) ) THEN
*
*        CPOSV
*
         srnamt = 'CPOSV '
         infot = 1
         CALL plasma_cposv( '/', 0, 0, a, 1, b, 1, info )
         CALL chkxer( 'CPOSV ', infot, nout, info, ok )
         infot = 2
         CALL plasma_cposv( plasmaupper, -1, 0, a, 1, b, 1, info )
         CALL chkxer( 'CPOSV ', infot, nout, info, ok )
         infot = 3
         CALL plasma_cposv( plasmaupper, 0, -1, a, 1, b, 1, info )
         CALL chkxer( 'CPOSV ', infot, nout, info, ok )
         infot = 5
         CALL plasma_cposv( plasmaupper, 2, 0, a, 1, b, 2, info )
         CALL chkxer( 'CPOSV ', infot, nout, info, ok )
         infot = 7
         CALL plasma_cposv( plasmaupper, 2, 0, a, 2, b, 1, info )
         CALL chkxer( 'CPOSV ', infot, nout, info, ok )
*
*        CPOSVX
*
         srnamt = 'CPOSVX'
         infot = 1
         CALL cposvx( '/', 'U', 0, 0, a, 1, af, 1, eq, c, b, 1, x, 1,
     $                rcond, r1, r2, w, iw, info )
         CALL chkxer( 'CPOSVX', infot, nout, info, ok )
         infot = 2
         CALL cposvx( 'N', '/', 0, 0, a, 1, af, 1, eq, c, b, 1, x, 1,
     $                rcond, r1, r2, w, iw, info )
         CALL chkxer( 'CPOSVX', infot, nout, info, ok )
         infot = 3
         CALL cposvx( 'N', 'U', -1, 0, a, 1, af, 1, eq, c, b, 1, x, 1,
     $                rcond, r1, r2, w, iw, info )
         CALL chkxer( 'CPOSVX', infot, nout, info, ok )
         infot = 4
         CALL cposvx( 'N', 'U', 0, -1, a, 1, af, 1, eq, c, b, 1, x, 1,
     $                rcond, r1, r2, w, iw, info )
         CALL chkxer( 'CPOSVX', infot, nout, info, ok )
         infot = 6
         CALL cposvx( 'N', 'U', 2, 0, a, 1, af, 2, eq, c, b, 2, x, 2,
     $                rcond, r1, r2, w, iw, info )
         CALL chkxer( 'CPOSVX', infot, nout, info, ok )
         infot = 8
         CALL cposvx( 'N', 'U', 2, 0, a, 2, af, 1, eq, c, b, 2, x, 2,
     $                rcond, r1, r2, w, iw, info )
         CALL chkxer( 'CPOSVX', infot, nout, info, ok )
         infot = 9
         eq = '/'
         CALL cposvx( 'F', 'U', 0, 0, a, 1, af, 1, eq, c, b, 1, x, 1,
     $                rcond, r1, r2, w, iw, info )
         CALL chkxer( 'CPOSVX', infot, nout, info, ok )
         infot = 10
         eq = 'Y'
         CALL cposvx( 'F', 'U', 1, 0, a, 1, af, 1, eq, c, b, 1, x, 1,
     $                rcond, r1, r2, w, iw, info )
         CALL chkxer( 'CPOSVX', infot, nout, info, ok )
         infot = 12
         CALL cposvx( 'N', 'U', 2, 0, a, 2, af, 2, eq, c, b, 1, x, 2,
     $                rcond, r1, r2, w, iw, info )
         CALL chkxer( 'CPOSVX', infot, nout, info, ok )
         infot = 14
         CALL cposvx( 'N', 'U', 2, 0, a, 2, af, 2, eq, c, b, 2, x, 1,
     $                rcond, r1, r2, w, iw, info )
         CALL chkxer( 'CPOSVX', infot, nout, info, ok )
      END IF
*
*     Print a summary line.
*
      IF( ok ) THEN
         WRITE( nout, fmt = 9999 )path
      ELSE
         WRITE( nout, fmt = 9998 )path
      END IF
*
 9999 format( 1x, a3, ' drivers passed the tests of the error exits' )
 9998 format( ' *** ', a3, ' drivers failed the tests of the error ',
     $      'exits ***' )
*
*     Enable PLASMA warnings/errors
* 
      CALL plasma_enable( plasma_warnings, info )
      CALL plasma_enable( plasma_errors,   info )
*
      return
*
*     End of CERRVX
*
      END