serrls.f

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      SUBROUTINE serrls( 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
*  =======
*
*  SERRLS tests the error exits for the REAL least squares
*  driver routines (SGELS, SGELSS, SGELSX, SGELSY, SGELSD).
*
*  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 ..
      CHARACTER*2        c2
      INTEGER            info, irnk
      REAL               rcond
      INTEGER            ht( 2 )
*     ..
*     .. Local Arrays ..
      INTEGER            ip( nmax )
      REAL               a( nmax, nmax ), b( nmax, nmax ), s( nmax ),
     $                   w( nmax )
*     ..
*     .. External Functions ..
      LOGICAL            lsamen
      EXTERNAL           lsamen
*     ..
*     .. External Subroutines ..
      EXTERNAL           alaesm, chkxer, sgels, sgelsd, sgelss, sgelsx,
     $                   sgelsy
*     ..
*     .. Scalars in Common ..
      LOGICAL            lerr, ok
      CHARACTER*32       srnamt
      INTEGER            infot, nout
*     ..
*     .. Common blocks ..
      common             / infoc / infot, nout, ok, lerr
      common             / srnamc / srnamt
*     ..
*     .. Executable Statements ..
*
      nout = nunit
      WRITE( nout, fmt = * )
      c2 = path( 2: 3 )
      a( 1, 1 ) = 1.0e+0
      a( 1, 2 ) = 2.0e+0
      a( 2, 2 ) = 3.0e+0
      a( 2, 1 ) = 4.0e+0
      ok = .true.
*
*     Disable PLASMA warnings/errors
* 
      CALL plasma_disable( plasma_warnings, info )
      CALL plasma_disable( plasma_errors,   info )
*
      IF( lsamen( 2, c2, 'LS' ) ) THEN
*
*        Test error exits for the least squares driver routines.
*
*        SGELS
*
         CALL plasma_alloc_workspace_sgels( 2, 2, ht, info )
*
         srnamt = 'SGELS '
         infot = 103
         CALL plasma_sgels( '/', 0, 0, 0, a, 1, ht, b, 1, info )
         CALL chkxer( 'SGELS ', infot, nout, info, ok )
         infot = 2
         CALL plasma_sgels( plasmanotrans, -1, 0, 0, a, 1, ht,
     $                     b, 1, info )
         CALL chkxer( 'SGELS ', infot, nout, info, ok )
         infot = 3
         CALL plasma_sgels( plasmanotrans, 0, -1, 0, a, 1, ht,
     $                     b, 1, info )
         CALL chkxer( 'SGELS ', infot, nout, info, ok )
         infot = 4
         CALL plasma_sgels( plasmanotrans, 0, 0, -1, a, 1, ht,
     $                     b, 1, info )
         CALL chkxer( 'SGELS ', infot, nout, info, ok )
         infot = 6
         CALL plasma_sgels( plasmanotrans, 2, 0, 0, a, 1, ht,
     $                     b, 2, info )
         CALL chkxer( 'SGELS ', infot, nout, info, ok )
         infot = 9
         CALL plasma_sgels( plasmanotrans, 2, 0, 0, a, 2, ht,
     $                     b, 1, info )
         CALL chkxer( 'SGELS ', infot, nout, info, ok )
*
         CALL plasma_dealloc_handle( ht, info )
*
      END IF
*
*     Print a summary line.
*
      CALL alaesm( path, ok, nout )
*
*     Enable PLASMA warnings/errors
* 
      CALL plasma_enable( plasma_warnings, info )
      CALL plasma_enable( plasma_errors,   info )
*
      return
*
*     End of SERRLS
*
      END