Mizux Seiha
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20d0496bfb
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reapply google format
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2020-10-23 00:45:17 +02:00 |
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Laurent Perron
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a4258f2bdf
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switch flags setters and getters to the absl format
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2020-10-21 00:21:54 +02:00 |
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Laurent Perron
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bcb7b3073d
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large synchro with internal code: linear solver: introduce intermediate SCIP layer called gscip; sat: more work on slow propagation detection; base: remove statusor, use abseil version; constraint solver: more work on internal local search
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2020-10-18 16:38:25 +02:00 |
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Laurent Perron
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76871a4403
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fix bugs in CP-SAT
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2020-10-06 17:57:20 +02:00 |
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Laurent Perron
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484aafb903
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A few fixes on CP-SAT; work on scheduling LP cuts
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2020-10-01 18:08:34 +02:00 |
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Laurent Perron
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5abff09c1f
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add convex hull constraint on interval; improve scheduling relaxation
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2020-09-21 09:44:39 +02:00 |
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Laurent Perron
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4a1e29fafb
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polish first scheduling cuts; fix bugs in workers synchro; fix rage bug in scheduling; fix inconsistent optimal value; fix #2153
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2020-09-12 17:48:48 +02:00 |
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Laurent Perron
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2bb2115cdc
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add initial implementation of cover cuts
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2020-09-03 17:50:04 +02:00 |
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Laurent Perron
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c52946b783
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add initial implementation for zero half cut
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2020-09-03 09:08:10 +02:00 |
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Laurent Perron
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e28a499b0f
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[CP-SAT] improve feasibility pump; improve scaling of linear model; internal improvements
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2020-07-05 00:29:47 +02:00 |
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Laurent Perron
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7268ce5589
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add incremental in-search preprocessing to SAT; fix #2040; fix rare check in glop
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2020-06-03 12:07:07 +02:00 |
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Laurent Perron
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581d5606e0
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fix #2005; massive rewrite of pure sat processing; RINS/RENS improvements in CP-SAT; get rid of base/status.h in favor of the absl version
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2020-05-06 18:22:10 +02:00 |
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Laurent Perron
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a0cc52731e
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expand table constraints; improve cut management; speed up presolve
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2020-03-19 00:24:10 +01:00 |
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Laurent Perron
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0ba997ada1
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speed up cut management; expand negated table constraints
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2020-03-11 17:53:22 +01:00 |
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Laurent Perron
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c665f53ff2
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[CP-SAT] improve cut management; add debugging tools; fix UNSAT bug in presolve
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2020-03-05 17:24:49 +01:00 |
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Laurent Perron
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b2d959afe8
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enable multiple rounds of cuts at the root node
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2020-03-02 17:26:45 +01:00 |
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Laurent Perron
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edb1ee13b1
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improve CP-SAT cuts; fix #1901; fix #1882
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2020-03-02 15:15:37 +01:00 |
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Laurent Perron
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456a73d213
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improve cut numerical precision; speed up presolve; fix bug with inverse constraint expansion
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2020-02-03 16:21:57 +01:00 |
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Laurent Perron
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0c4fdd7c2b
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fix overflow in the linearization of abs
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2020-01-21 10:59:37 +01:00 |
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Laurent Perron
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76cf068598
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remove most of flatzinc presolve; fix missing presolve in cp-sat; improve cut managements in cp-sat
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2020-01-07 16:51:46 +01:00 |
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Laurent Perron
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6bb8272b2a
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[CP-SAT] improve rounding methods in linear cuts
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2019-12-16 15:33:52 +01:00 |
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Laurent Perron
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f9f2d7b5b4
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[CP-SAT] improve presolve; improve linear subsystem
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2019-12-16 12:34:56 +01:00 |
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Laurent Perron
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dc3d9ccf84
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internal improvemensts
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2019-12-05 16:36:11 +01:00 |
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Laurent Perron
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42676d6535
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update base libraries; improve sat internals
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2019-11-25 12:02:25 +01:00 |
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Laurent Perron
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2ff000ab9a
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bump abseil to the latest version, adapt the code all around
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2019-11-20 14:28:11 -08:00 |
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Laurent Perron
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aed6d43247
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improve sat cut management; enable MIR1 cut by defaults; fix MIR1 cuts w.r.t. sign and overflow
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2019-11-18 10:06:11 -08:00 |
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Laurent Perron
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28033c996f
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improve lp cut and constraint management
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2019-11-14 12:42:35 -08:00 |
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Laurent Perron
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f899479015
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merge scaling between scip to glop interface and cp-sat; add missing indomain_median (partial) to flatzinc; enable diffn_nonstrict on flatzinc; move shared_limit to util; add all_diff cuts to cp-sat
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2019-10-04 08:51:53 -04:00 |
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Laurent Perron
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5fb3bd0455
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improve sat expansion; cuts management
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2019-09-18 17:31:11 +02:00 |
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Laurent Perron
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fff236d800
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work on CP-SAT internals
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2019-09-11 12:50:25 +02:00 |
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Laurent Perron
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b435a301cc
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search experiments and tuning in CP-SAT; add expansion of automaton by default
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2019-09-09 15:10:26 +02:00 |
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Laurent Perron
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a64e947cdb
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add new code samoke; update internals
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2019-08-23 16:45:52 +02:00 |
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Laurent Perron
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09655b81ea
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add LinearExpr.Term() API; improve internals
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2019-08-22 13:15:49 +02:00 |
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Laurent Perron
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f32e012aed
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works on CP-SAT and cuts
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2019-07-18 11:36:47 -07:00 |
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Laurent Perron
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b3c9ac9de8
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fix #1413
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2019-07-15 10:26:19 -07:00 |
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Laurent Perron
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a556eb1ec0
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[CP-SAT] Rins fixes, cuts improvements
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2019-07-12 10:22:51 -07:00 |
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Laurent Perron
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26b190841d
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improve linear constraint manager in CP-SAT; fix circuit bug; add MT Feasibility worker params
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2019-07-11 12:03:31 -07:00 |
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Laurent Perron
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4ac9172f9f
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linux fix
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2019-05-29 22:48:54 +02:00 |
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Laurent Perron
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2c7f392437
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linux fix
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2019-05-29 22:48:07 +02:00 |
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Laurent Perron
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1028207a2a
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add time limit to max_clique algorithm in CP-SAT presolve; fix rare crash in CP-SAT/GLOP connection; experimental CP-SAT scheduling code to speed-up the case of multiple no_overlap with lots of shared intervals; replace algorithm behind the util default random engine
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2019-05-29 22:39:15 +02:00 |
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Laurent Perron
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198d6295e4
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optimize speed and memory
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2019-05-23 18:55:20 +02:00 |
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Laurent Perron
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71405ff5b1
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internal cleanup of the search flow in the cp-sat; share assigned Boolean variables between workers; add parameter to returns tightened bounds after a solve (level 0 proved bounds); try to cleanup the mathematical formula behind dynamic LP iterations when called from the CP-SAT solver
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2019-05-23 13:53:26 +02:00 |
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Laurent Perron
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d9c66c8c70
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update code sample
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2019-05-16 16:50:11 +02:00 |
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Laurent Perron
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0490fe5337
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fix degeneracy data
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2019-05-05 18:02:49 +02:00 |
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Laurent Perron
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7f99c48698
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revamp SAT domains, API with bounds on non C++ languages
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2019-05-03 16:30:57 +02:00 |
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Laurent Perron
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07d0207fff
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silence spurrious warning; add minor presolve to abs(x) == y
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2019-04-22 10:11:29 +02:00 |
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Laurent Perron
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c9b51d7b1c
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add license text
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2019-04-18 14:17:35 +02:00 |
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Laurent Perron
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f47f804a5b
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improve precision handling in CP-SAT/GLOP and in routing/GLOP
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2019-04-18 13:29:21 +02:00 |
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Laurent Perron
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4477092d8d
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rewrite CP-SAT high level search flow (presolve, LNS, parallelism...)
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2019-04-11 09:46:06 -07:00 |
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Laurent Perron
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17f040336f
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add per constraint scaling in CP-SAT -> GLOP bridge
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2019-04-10 10:35:42 -07:00 |
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