| 1 | /* ========================================================================= */ |
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| 2 | /* === AMD_control ========================================================= */ |
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| 3 | /* ========================================================================= */ |
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| 4 | |
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| 5 | /* ------------------------------------------------------------------------- */ |
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| 6 | /* AMD, Copyright (c) Timothy A. Davis, */ |
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| 7 | /* Patrick R. Amestoy, and Iain S. Duff. See ../README.txt for License. */ |
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| 8 | /* email: davis at cise.ufl.edu CISE Department, Univ. of Florida. */ |
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| 9 | /* web: http://www.cise.ufl.edu/research/sparse/amd */ |
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| 10 | /* ------------------------------------------------------------------------- */ |
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| 11 | |
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| 12 | /* User-callable. Prints the control parameters for AMD. See amd.h |
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| 13 | * for details. If the Control array is not present, the defaults are |
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| 14 | * printed instead. |
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| 15 | */ |
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| 16 | |
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| 17 | #include "amd_internal.h" |
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| 18 | |
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| 19 | GLOBAL void AMD_control |
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| 20 | ( |
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| 21 | double Control [ ] |
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| 22 | ) |
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| 23 | { |
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| 24 | double alpha ; |
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| 25 | Int aggressive ; |
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| 26 | |
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| 27 | if (Control != (double *) NULL) |
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| 28 | { |
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| 29 | alpha = Control [AMD_DENSE] ; |
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| 30 | aggressive = Control [AMD_AGGRESSIVE] != 0 ; |
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| 31 | } |
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| 32 | else |
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| 33 | { |
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| 34 | alpha = AMD_DEFAULT_DENSE ; |
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| 35 | aggressive = AMD_DEFAULT_AGGRESSIVE ; |
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| 36 | } |
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| 37 | |
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| 38 | PRINTF (("\nAMD version %d.%d.%d, %s: approximate minimum degree ordering\n" |
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| 39 | " dense row parameter: %g\n", AMD_MAIN_VERSION, AMD_SUB_VERSION, |
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| 40 | AMD_SUBSUB_VERSION, AMD_DATE, alpha)) ; |
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| 41 | |
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| 42 | if (alpha < 0) |
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| 43 | { |
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| 44 | PRINTF ((" no rows treated as dense\n")) ; |
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| 45 | } |
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| 46 | else |
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| 47 | { |
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| 48 | PRINTF (( |
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| 49 | " (rows with more than max (%g * sqrt (n), 16) entries are\n" |
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| 50 | " considered \"dense\", and placed last in output permutation)\n", |
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| 51 | alpha)) ; |
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| 52 | } |
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| 53 | |
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| 54 | if (aggressive) |
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| 55 | { |
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| 56 | PRINTF ((" aggressive absorption: yes\n")) ; |
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| 57 | } |
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| 58 | else |
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| 59 | { |
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| 60 | PRINTF ((" aggressive absorption: no\n")) ; |
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| 61 | } |
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| 62 | |
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| 63 | PRINTF ((" size of AMD integer: %d\n\n", sizeof (Int))) ; |
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| 64 | } |
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