glpk-cmake: src/amd/amd_control.c@c445c931472f

     1 /* ========================================================================= */

     2 /* === AMD_control ========================================================= */

     3 /* ========================================================================= */

     5 /* ------------------------------------------------------------------------- */

     6 /* AMD, Copyright (c) Timothy A. Davis,                                      */

     7 /* Patrick R. Amestoy, and Iain S. Duff.  See ../README.txt for License.     */

     8 /* email: davis at cise.ufl.edu    CISE Department, Univ. of Florida.        */

     9 /* web: http://www.cise.ufl.edu/research/sparse/amd                          */

    10 /* ------------------------------------------------------------------------- */

    12 /* User-callable.  Prints the control parameters for AMD.  See amd.h

    13  * for details.  If the Control array is not present, the defaults are

    14  * printed instead.

    15  */

    17 #include "amd_internal.h"

    19 GLOBAL void AMD_control

    20 (

    21     double Control [ ]

    22 )

    23 {

    24     double alpha ;

    25     Int aggressive ;

    27     if (Control != (double *) NULL)

    28     {

    29         alpha = Control [AMD_DENSE] ;

    30         aggressive = Control [AMD_AGGRESSIVE] != 0 ;

    31     }

    32     else

    33     {

    34         alpha = AMD_DEFAULT_DENSE ;

    35         aggressive = AMD_DEFAULT_AGGRESSIVE ;

    36     }

    38     PRINTF (("\nAMD version %d.%d.%d, %s: approximate minimum degree ordering\n"

    39         "    dense row parameter: %g\n", AMD_MAIN_VERSION, AMD_SUB_VERSION,

    40         AMD_SUBSUB_VERSION, AMD_DATE, alpha)) ;

    42     if (alpha < 0)

    43     {

    44         PRINTF (("    no rows treated as dense\n")) ;

    45     }

    46     else

    47     {

    48         PRINTF ((

    49         "    (rows with more than max (%g * sqrt (n), 16) entries are\n"

    50         "    considered \"dense\", and placed last in output permutation)\n",

    51         alpha)) ;

    52     }

    54     if (aggressive)

    55     {

    56         PRINTF (("    aggressive absorption:  yes\n")) ;

    57     }

    58     else

    59     {

    60         PRINTF (("    aggressive absorption:  no\n")) ;

    61     }

    63     PRINTF (("    size of AMD integer: %d\n\n", sizeof (Int))) ;

    64 }

author	Alpar Juttner <alpar@cs.elte.hu>
	Mon, 06 Dec 2010 13:09:21 +0100
changeset 1	c445c931472f
permissions	-rw-r--r--