always-cautious/ortools-clone
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39 Commits

Author SHA1 Message Date
Corentin Le Molgat
1b4d75ceb3 sat: backport from main 2025-11-05 13:55:12 +01:00
Corentin Le Molgat
b4b226801b update include guards 2025-11-05 11:54:02 +01:00
Laurent Perron
edb9051c03 minor optims 2025-04-10 11:41:06 +02:00
Laurent Perron
00adfb5dd2 [CP-SAT] more bugfixes 2025-01-31 17:09:56 +01:00
Corentin Le Molgat
a66a6daac7 Bump Copyright to 2025 2025-01-10 11:35:44 +01:00
Laurent Perron
dba2281f13 [CP-SAT] more work on no_overlap_2d; revisit all includes 2024-12-04 17:47:28 +01:00
Laurent Perron
21a75638c2 partial sync with main (without the routing part) 2024-07-12 13:56:11 +02:00
Laurent Perron
a166810d9a [CP-SAT] add rlt cuts; improve no_overlap_2d propagation 2024-02-28 17:20:23 +01:00
Mizux Seiha
a76bf1c5dd bump license boilerplate 2024-01-04 13:43:15 +01:00
Laurent Perron
0be41f4129 work on diffn; fix non deterministic issue 2023-12-28 21:42:18 +01:00
Laurent Perron
fa6883d544 mostly cleaning: remove integral_types.h and basictypes.h 2023-08-24 14:52:54 +02:00
Laurent Perron
5024c23691 [CP-SAT] new lns (graph_dec_lns); internal code cleaning 2023-06-22 15:43:31 +02:00
Laurent Perron
224a38f87f cleanup code 2023-05-24 11:42:11 +02:00
Laurent Perron
34161f7cff [CP-SAT] reduce memory used in the integer encoding; fix worker info not being displayed in the log 2023-02-14 17:35:45 -08:00
Laurent Perron
8948fcc24b [CP-SAT] cleaning 2022-10-17 17:11:59 +02:00
Laurent Perron
87ca4f58ad [CP-SAT] bump license years; fix scheduling cuts; improve lb_tree_search 2022-06-16 15:21:00 +02:00
Laurent Perron
8af04faff5 [CP-SAT] introduce decomposed energy and use it in scheduling propagation and cuts; remove duplicate code in presolve; simplify the name of a few parameters; add SchedulingDemandHelper class; re-enable model status in search log 2022-06-16 07:45:19 +02:00
Laurent Perron
d99e3c679c fix #3253 2022-04-25 15:35:31 +02:00
Laurent Perron
20b1c7eeab [CP-SAT] Speedup timetable, fix bug in base SAT engine, improve scheduling cuts 2022-04-20 17:38:59 +02:00
Laurent Perron
8fe2df9a18 [CP-SAT] regenerates all includes; improve core solver when the objective is pseudo-boolean 2022-02-15 18:00:11 +01:00
Laurent Perron
321d02c17c more strong integer types; use them in CP-SAT; polish shaving code; remove 1 overflow in cuts 2022-02-07 14:31:18 +01:00
Laurent Perron
068a71104a [CP-SAT] fix cumulative presolve; use strong_index 2022-02-04 14:20:08 +01:00
Corentin Le Molgat
4defaa23ed Export strong_int.h 2022-01-31 18:44:25 +01:00
Laurent Perron
9989323661 [CP-SAT] Polish NoOverlap2d new code 2021-12-13 14:24:57 +01:00
Laurent Perron
1eec259105 [CP-SAT] Cleanup intervals (remove start/size/end fields, remove _view from the other ones); change demands and capacity of the cumulative constraint to affine expressions; remove the experimental energies field from the cumulative constraint; first pass at detecting linear encoding of product of variab;es. This happens when both variables are encoded by the same literals, in an exactly_one relation; speed up the lb_tree_search worker 2021-10-20 19:50:09 +02:00
Laurent Perron
d5c777ddfa [CP-SAT] detect connected components in the model and start using the info in LNS; display var/constraints stats during search; simplify model loader; improve presolve 2021-10-16 14:48:43 +02:00
Laurent Perron
80987d328b [CP-SAT] rewrite element expand; improve lin_max linear relaxation; detect value element and add linear relaxation; plenty of bug fixes 2021-07-23 21:59:20 +02:00
Mizux Seiha
8bb54b04ef Bump Copyright to 2021 
FYI:
find ortools \( -type d -name .git -prune \) -o -type f -print0 | xargs -0 sed -i 's/\(Copyright 2010\)-2018/\1-2021/g'
 2021-04-01 21:00:53 +02:00
Laurent Perron
bad5c2032b int64 -> int64_t 2021-03-04 18:26:01 +01:00
Laurent Perron
d5c7c48e79 int_type_indexed_vector -> strong_vector; polish cp-sat probing workers 2020-11-19 00:17:26 +01:00
Corentin Le Molgat
c75ac92a5a Sync from Google to GitHub 2020-11-16 17:50:54 +01:00
Corentin Le Molgat
e4caaf96bc format file forcing the left alignment 2020-10-29 14:25:39 +01:00
Mizux Seiha
20d0496bfb reapply google format 2020-10-23 00:45:17 +02:00
Laurent Perron
a4258f2bdf switch flags setters and getters to the absl format 2020-10-21 00:21:54 +02:00
Laurent Perron
484aafb903 A few fixes on CP-SAT; work on scheduling LP cuts 2020-10-01 18:08:34 +02:00
Laurent Perron
bec1d01562 improve sat internals 2019-10-21 16:50:31 +02:00
Laurent Perron
954d6f1559 fix 2019-10-18 15:15:53 +02:00
Laurent Perron
5a0bf822fd improve sat solver 2019-10-18 14:39:25 +02:00
Laurent Perron
7f5f7b471a revisit presolve/expand + minor fixes 2019-09-16 23:39:23 +02:00