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2022-03-03Added messages about generating pruning tablesSebastiano Tronto1-2/+2
2022-02-27Removed some unused code (khuge). Improved optimal solver performance by ↵Sebastiano Tronto1-75/+7
about 10% using raw transition tables (same for dr step).
2021-12-24use nxopt31 (compressed) by default for optimal solvingSebastiano Tronto1-3/+11
2021-12-23Added the possibility to compress tables to 2 bits per entry.Sebastiano Tronto1-4/+4
This is done similarly to nxopt: one base value is selected and entries are memorized based on that base value. Values higher than base+3 are returned as base+3 (still a valid estimate) and values lower or equal to base require a lookup on a "fallback" table, which must give a valid estimate for the larger one (e.g. nxopt31 or khuge can fallback to drud_sym16). I have also added some info to the pruning table files: base value and distribution. Unfortunately this means that everyone who has used nissy 2.0beta has to re-generate the tables.
2021-12-17some progressSebastiano Tronto1-9/+0
2021-12-16Added a new pruning table (equivalent to nxopt31). I have not tested it yet, ↵Sebastiano Tronto1-28/+57
it takes a while to generate. Plus I have done a whole lot of refactoring in random places because I cannot focus on one thing at the time.
2021-12-08Faster and nice pruning table generation. Can still be improved with ↵Sebastiano Tronto1-15/+100
multithreading.
2021-11-17Use inttypes.h macros to print uint64_t variables (this requires -std=c99). ↵Sebastiano Tronto1-1/+1
Added a couple of TODOs
2021-11-12I tried to remove the dependence on antindex in order to get rid of themSebastiano Tronto1-0/+9
once and for all. I successfully removed from the pruning table generation part by using an alternative (slower) method, but then I realized that I also use antindexes when generating symmetry data. So I reverted to the original pruning table computation method, but I left the alternative way there, commented.
2021-11-11Rewritten from scratch. Welocme nissy 2.0!Sebastiano Tronto1-0/+355

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