Blame view

fvn_sparse/AMD/Source/amd_control.c 1.82 KB
422234dc3   daniau   git-svn-id: https...
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
  /* ========================================================================= */
  /* === AMD_control ========================================================= */
  /* ========================================================================= */
  
  /* ------------------------------------------------------------------------- */
  /* AMD, Copyright (c) Timothy A. Davis,					     */
  /* 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/amd                          */
  /* ------------------------------------------------------------------------- */
  
  /* User-callable.  Prints the control parameters for AMD.  See amd.h
   * for details.  If the Control array is not present, the defaults are
   * printed instead.
   */
  
  #include "amd_internal.h"
  
  GLOBAL void AMD_control
  (
      double Control [ ]
  )
  {
      double alpha ;
      Int aggressive ;
  
      if (Control != (double *) NULL)
      {
  	alpha = Control [AMD_DENSE] ;
  	aggressive = Control [AMD_AGGRESSIVE] != 0 ;
      }
      else
      {
  	alpha = AMD_DEFAULT_DENSE ;
  	aggressive = AMD_DEFAULT_AGGRESSIVE ;
      }
  
      PRINTF (("
  AMD version %d.%d.%d, %s: approximate minimum degree ordering
  "
  	"    dense row parameter: %g
  ", AMD_MAIN_VERSION, AMD_SUB_VERSION,
  	AMD_SUBSUB_VERSION, AMD_DATE, alpha)) ;
  
      if (alpha < 0)
      {
  	PRINTF (("    no rows treated as dense
  ")) ;
      }
      else
      {
  	PRINTF ((
  	"    (rows with more than max (%g * sqrt (n), 16) entries are
  "
  	"    considered \"dense\", and placed last in output permutation)
  ",
  	alpha)) ;
      }
  
      if (aggressive)
      {
  	PRINTF (("    aggressive absorption:  yes
  ")) ;
      }
      else
      {
  	PRINTF (("    aggressive absorption:  no
  ")) ;
      }
  
      PRINTF (("    size of AMD integer: %d
  
  ", sizeof (Int))) ;
  }