lemon-project-template-glpk
view deps/glpk/src/amd/amd_control.c @ 11:4fc6ad2fb8a6
Test GLPK in src/main.cc
| author | Alpar Juttner <alpar@cs.elte.hu> |
|---|---|
| date | Sun, 06 Nov 2011 21:43:29 +0100 |
| parents | |
| children |
line source
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 }