amesos_camd_control.c

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/* ========================================================================= */
/* === CAMD_control ======================================================== */
/* ========================================================================= */

/* ------------------------------------------------------------------------- */
/* CAMD, Copyright (c) Timothy A. Davis, Yanqing Chen,           */
/* Patrick R. Amestoy, and Iain S. Duff.  See ../README.txt for License.     */
/* email: davis at cise.ufl.edu    CISE Department, Univ. of Florida.        */
/* web: http://www.cise.ufl.edu/research/sparse/camd                         */
/* ------------------------------------------------------------------------- */

/* User-callable.  Prints the control parameters for CAMD.  See camd.h
 * for details.  If the Control array is not present, the defaults are
 * printed instead.
 */

#include "amesos_camd_internal.h"

GLOBAL void CAMD_control
(
    double Control [ ]
)
{
    double alpha ;
    Int aggressive ;

    if (Control != (double *) NULL)
    {
  alpha = Control [CAMD_DENSE] ;
  aggressive = Control [CAMD_AGGRESSIVE] != 0 ;
    }
    else
    {
  alpha = CAMD_DEFAULT_DENSE ;
  aggressive = CAMD_DEFAULT_AGGRESSIVE ;
    }

    PRINTF (("\ncamd version %d.%d, %s:  approximate minimum degree ordering:\n"
  "    dense row parameter: %g\n", CAMD_MAIN_VERSION, CAMD_SUB_VERSION,
  CAMD_DATE, alpha)) ;

    if (alpha < 0)
    {
  PRINTF (("    no rows treated as dense\n")) ;
    }
    else
    {
  PRINTF ((
  "    (rows with more than max (%g * sqrt (n), 16) entries are\n"
  "    considered \"dense\", and placed last in output permutation)\n",
  alpha)) ;
    }

    if (aggressive)
    {
  PRINTF (("    aggressive absorption:  yes\n\n")) ;
    }
    else
    {
  PRINTF (("    aggressive absorption:  no\n\n")) ;
    }
}