pdvprnt()

subroutine pdvprnt	(	integer	ictxt,
		integer	nout,
		integer	n,
		double precision, dimension( * )	x,
		integer	incx,
		integer	irprnt,
		integer	icprnt,
		character*(*)	cvecnm
	)

Definition at line 4054 of file pdblastst.f.

*
*  -- PBLAS test routine (version 2.0) --
*     University of Tennessee, Knoxville, Oak Ridge National Laboratory,
*     and University of California, Berkeley.
*     April 1, 1998
*
*     .. Scalar Arguments ..
      INTEGER            ICPRNT, ICTXT, INCX, IRPRNT, N, NOUT
*     ..
*     .. Array Arguments ..
      CHARACTER*(*)      CVECNM
      DOUBLE PRECISION   X( * )
*     ..
*
*  Purpose
*  =======
*
*  PDVPRNT  prints  to the standard output an vector x of length n. Only
*  the process of coordinates ( IRPRNT, ICPRNT ) is printing.
*
*  Arguments
*  =========
*
*  ICTXT   (local input) INTEGER
*          On entry,  ICTXT  specifies the BLACS context handle, indica-
*          ting the global  context of the operation. The context itself
*          is global, but the value of ICTXT is local.
*
*  NOUT    (global input) INTEGER
*          On entry, NOUT specifies the unit number for the output file.
*          When NOUT is 6, output to screen,  when  NOUT is 0, output to
*          stderr. NOUT is only defined for process 0.
*
*  N       (global input) INTEGER
*          On entry, N  specifies the length of the vector X.  N must be
*          at least zero.
*
*  X       (global input) DOUBLE PRECISION array
*          On   entry,   X   is   an   array   of   dimension  at  least
*          ( 1 + ( n - 1 )*abs( INCX ) ).  Before  entry,  the incremen-
*          ted array X must contain the vector x.
*
*  INCX    (global input) INTEGER.
*          On entry, INCX specifies the increment for the elements of X.
*          INCX must not be zero.
*
*  IRPRNT  (global input) INTEGER
*          On entry, IRPRNT  specifies the process row coordinate of the
*          printing process.
*
*  ICPRNT  (global input) INTEGER
*          On entry,  ICPRNT  specifies the process column coordinate of
*          the printing process.
*
*  CVECNM  (global input) CHARACTER*(*)
*          On entry, CVECNM specifies the identifier of the vector to be
*          printed.
*
*  -- Written on April 1, 1998 by
*     Antoine Petitet, University  of  Tennessee, Knoxville 37996, USA.
*
*  =====================================================================
*
*     .. Local Scalars ..
      INTEGER            I, MYCOL, MYROW, NPCOL, NPROW
*     ..
*     .. External Subroutines ..
      EXTERNAL           blacs_gridinfo
*     ..
*     .. Executable Statements ..
*
*     Quick return if possible
*
      IF( n.LE.0 )
     $   RETURN
*
*     Get grid parameters
*
      CALL blacs_gridinfo( ictxt, nprow, npcol, myrow, mycol )
*
      IF( myrow.EQ.irprnt .AND. mycol.EQ.icprnt ) THEN
*
         WRITE( nout, fmt = * )
         DO 10 i = 1, 1 + ( n-1 )*incx, incx
*
            WRITE( nout, fmt = 9999 ) cvecnm, i, x( i )
*
   10    CONTINUE
*
      END IF
*
 9999 FORMAT( 1x, a, '(', i6, ')=', d30.18 )
*
      RETURN
*
*     End of PDVPRNT
*

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