derrlq.f

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      SUBROUTINE derrlq( PATH, NUNIT )
*
      include 'plasmaf.h'
*
*  -- LAPACK test routine (version 3.1) --
*     Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd..
*     November 2006
*
*     .. Scalar Arguments ..
      CHARACTER*3        path
      INTEGER            nunit
*     ..
*
*  Purpose
*  =======
*
*  DERRLQ tests the error exits for the DOUBLE PRECISION routines
*  that use the LQ decomposition of a general matrix.
*
*  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 = 2 )
*     ..
*     .. Local Scalars ..
      INTEGER            i, info, j
*     ..
*     .. Local Arrays ..
      DOUBLE PRECISION   a( nmax, nmax ), af( nmax, nmax ), b( nmax ),
     $                   w( nmax ), x( nmax )
      INTEGER            ht( 2 )
*     ..
*     .. External Subroutines ..
      EXTERNAL           alaesm, chkxer, dgelq2, dgelqf, dorgl2,
     $                   dorglq, dorml2, dormlq
*     ..
*     .. 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          dble
*     ..
*     .. Executable Statements ..
*
      nout = nunit
      WRITE( nout, fmt = * )
*
*     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 ) = 1.d0 / dble( i+j )
            af( i, j ) = 1.d0 / dble( i+j )
   10    continue
         b( j ) = 0.d0
         w( j ) = 0.d0
         x( j ) = 0.d0
   20 continue
      ok = .true.
*
*     Allocate HT
*
      CALL plasma_alloc_workspace_dgelqf( 2, 2, ht, info )
*
*     Error exits for LQ factorization
*
*     PLASMA_DGELQF
*
      srnamt = 'DGELQF'
      infot = 1
      CALL plasma_dgelqf( -1, 0, a, 1, ht, info )
      CALL chkxer( 'DGELQF', infot, nout, info, ok )
      infot = 2
      CALL plasma_dgelqf( 0, -1, a, 1, ht, info )
      CALL chkxer( 'DGELQF', infot, nout, info, ok )
      infot = 4
      CALL plasma_dgelqf( 2, 1, a, 1, ht, info )
      CALL chkxer( 'DGELQF', infot, nout, info, ok )
*
*     DGELQS
*
      srnamt = 'DGELQS'
      infot = 1
      CALL plasma_dgelqs( -1, 0, 0, a, 1, ht, b, 1, info )
      CALL chkxer( 'DGELQS', infot, nout, info, ok )
      infot = 2
      CALL plasma_dgelqs( 0, -1, 0, a, 1, ht, b, 1, info )
      CALL chkxer( 'DGELQS', infot, nout, info, ok )
      infot = 2
      CALL plasma_dgelqs( 2, 1, 0, a, 2, ht, b, 1, info )
      CALL chkxer( 'DGELQS', infot, nout, info, ok )
      infot = 3
      CALL plasma_dgelqs( 0, 0, -1, a, 1, ht, b, 1, info )
      CALL chkxer( 'DGELQS', infot, nout, info, ok )
      infot = 5
      CALL plasma_dgelqs( 2, 2, 0, a, 1, ht, b, 2, info )
      CALL chkxer( 'DGELQS', infot, nout, info, ok )
      infot = 8
      CALL plasma_dgelqs( 1, 2, 0, a, 1, ht, b, 1, info )
      CALL chkxer( 'DGELQS', infot, nout, info, ok )
*
*     DORGLQ
*
      srnamt = 'DORGLQ'
      infot = 1
      CALL plasma_dorglq( -1, 0, 0, a, 1, ht, w, 1, info )
      CALL chkxer( 'DORGLQ', infot, nout, info, ok )
      infot = 2
      CALL plasma_dorglq( 0, -1, 0, a, 1, ht, w, 1, info )
      CALL chkxer( 'DORGLQ', infot, nout, info, ok )
      infot = 2
      CALL plasma_dorglq( 2, 1, 0, a, 2, ht, w, 2, info )
      CALL chkxer( 'DORGLQ', infot, nout, info, ok )
      infot = 3
      CALL plasma_dorglq( 0, 0, -1, a, 1, ht, w, 1, info )
      CALL chkxer( 'DORGLQ', infot, nout, info, ok )
      infot = 3
      CALL plasma_dorglq( 1, 1, 2, a, 1, ht, w, 1, info )
      CALL chkxer( 'DORGLQ', infot, nout, info, ok )
      infot = 5
      CALL plasma_dorglq( 2, 2, 0, a, 1, ht, w, 2, info )
      CALL chkxer( 'DORGLQ', infot, nout, info, ok )
      infot = 8
      CALL plasma_dorglq( 2, 2, 0, a, 2, ht, w, 1, info )
      CALL chkxer( 'DORGLQ', infot, nout, info, ok )
*
*     PLASMA_DORMLQ
*
      srnamt = 'DORMLQ'
      infot = 1
      CALL plasma_dormlq( '/', plasmatrans, 0, 0, 0, a, 1, ht, af, 1,
     $                   info )
      CALL chkxer( 'DORMLQ', infot, nout, info, ok )
      infot = 2
      CALL plasma_dormlq( plasmaleft, '/', 0, 0, 0, a, 1, ht, af, 1,
     $                   info )
      CALL chkxer( 'DORMLQ', infot, nout, info, ok )
      infot = 3
      CALL plasma_dormlq( plasmaleft, plasmatrans, -1, 0, 0, a, 1, ht,
     $                   af, 1, info )
      CALL chkxer( 'DORMLQ', infot, nout, info, ok )
      infot = 4
      CALL plasma_dormlq( plasmaleft, plasmatrans, 0, -1, 0, a, 1, ht,
     $                   af, 1, info )
      CALL chkxer( 'DORMLQ', infot, nout, info, ok )
      infot = 5
      CALL plasma_dormlq( plasmaleft, plasmatrans, 0, 0, -1, a, 1, ht,
     $                   af, 1, info )
      CALL chkxer( 'DORMLQ', infot, nout, info, ok )
*      INFOT = 5
*      CALL PLASMA_DORMLQ( PLASMALEFT, PLASMATRANS, 0, 1, 1, A, 1, HT, AF, 1,
*     $                   INFO )
*      CALL CHKXER( 'DORMLQ', INFOT, NOUT, INFO, OK )
*      INFOT = 5
*      CALL PLASMA_DORMLQ( PLASMARIGHT, PLASMATRANS, 1, 0, 1, A, 1, HT, AF, 1,
*     $                   INFO )
*      CALL CHKXER( 'DORMLQ', INFOT, NOUT, INFO, OK )
*      INFOT = 7
*      CALL PLASMA_DORMLQ( PLASMALEFT, PLASMATRANS, 2, 0, 2, A, 1, HT, AF, 2,
*     $                   INFO )
*      CALL CHKXER( 'DORMLQ', INFOT, NOUT, INFO, OK )
*      INFOT = 7
*      CALL PLASMA_DORMLQ( PLASMARIGHT, PLASMATRANS, 0, 2, 2, A, 1, HT, AF, 1,
*     $                   INFO )
*      CALL CHKXER( 'DORMLQ', INFOT, NOUT, INFO, OK )
*      INFOT = 10
*      CALL PLASMA_DORMLQ( PLASMALEFT, PLASMATRANS, 2, 1, 0, A, 2, HT, AF, 1,
*     $                   INFO )
*      CALL CHKXER( 'DORMLQ', INFOT, NOUT, INFO, OK )
*      INFOT = 12
*      CALL PLASMA_DORMLQ( PLASMALEFT, PLASMATRANS, 1, 2, 0, A, 1, HT, AF, 1,
*     $                   INFO )
*      CALL CHKXER( 'DORMLQ', INFOT, NOUT, INFO, OK )
*      INFOT = 12
*      CALL PLASMA_DORMLQ( PLASMARIGHT, PLASMATRANS, 2, 1, 0, A, 1, HT, AF, 2,
*     $                   INFO )
*      CALL CHKXER( 'DORMLQ', INFOT, NOUT, INFO, OK )
*
*     Print a summary line.
*
      CALL alaesm( path, ok, nout )
*
*
*     Deallocate HT
*
      CALL plasma_dealloc_handle( ht, info )
*
*     Enable PLASMA warnings/errors
* 
      CALL plasma_enable( plasma_warnings, info )
      CALL plasma_enable( plasma_errors,   info )
*
      return
*
*     End of DERRLQ
*
      END