Search found 103 matches

by yorkman
Tue Apr 28, 2020 4:13 pm
Forum: Computer Chess Club: General Topics
Topic: Syzygy on RAM Drive
Replies: 21
Views: 5688

Re: Syzygy on RAM Drive

Is it possible to store my 3 syzygy paths in ram on Windows, such as Win'2012 R2? I'm currently using Syzygy from SSD. If it's possible, how do I do it? If it matters my gui is Aquarium. it can be done, but one has to consider how much RAM they have. 6 man syzygy takes 195GB , so if you have 512GB ...
by yorkman
Sun Apr 12, 2020 8:22 pm
Forum: Computer Chess Club: General Topics
Topic: 237 Mn/s for Stockfish on an 2xEPYC 7742
Replies: 81
Views: 10317

Re: 237 Mn/s for Stockfish on an 2xEPYC 7742

Anyone know a good tutorial on installing Wine 64bit on CentOS 8.1 for the purposes of installing Aquarium 2020 64-bit? I'd like to really compare SF between Win'10 Ent and CentOS 8.1 on my hardware. If Aquarium 2020 will look and work as well in Linux as it does in Windows and SF is at least 20% fa...
by yorkman
Sun Apr 12, 2020 8:15 pm
Forum: Computer Chess Club: General Topics
Topic: 237 Mn/s for Stockfish on an 2xEPYC 7742
Replies: 81
Views: 10317

Re: 237 Mn/s for Stockfish on an 2xEPYC 7742

Where did I say that? I simply said that comparing two DIFFERENT programs (or versions of the same program) by NPS is not going to provide very interesting information. Only time NPS is really relevant is when you are doing optimizations and want to compare the changes with the original. This assum...
by yorkman
Sun Apr 12, 2020 8:11 pm
Forum: Computer Chess Club: General Topics
Topic: 237 Mn/s for Stockfish on an 2xEPYC 7742
Replies: 81
Views: 10317

Re: 237 Mn/s for Stockfish on an 2xEPYC 7742

No typo- i misread, sorry.. On my system 3970x, asmfish with large pages is about 20% faster than Stockfish. When I added Large pages to Stockfish, that closed the difference to 10% - which is about where it should be. I was also comparing SF with LP to asmFish. And on my machine it's a world of di...
by yorkman
Sun Apr 12, 2020 4:47 pm
Forum: Computer Chess Club: General Topics
Topic: 237 Mn/s for Stockfish on an 2xEPYC 7742
Replies: 81
Views: 10317

Re: 237 Mn/s for Stockfish on an 2xEPYC 7742

so 100 million nodes per second slower? Is that a typo where you meant 100K nodes per second? IE 100,000 KNPS adds 3 more zeros to the end of that 100,000... It was typo, he's missing 100M nps and based on iPman's benchmarks - he's right. With that type of powerhouse - you almost must have to go Li...
by yorkman
Sun Apr 12, 2020 4:37 pm
Forum: Computer Chess Club: General Topics
Topic: 237 Mn/s for Stockfish on an 2xEPYC 7742
Replies: 81
Views: 10317

Re: 237 Mn/s for Stockfish on an 2xEPYC 7742

This goes 'round and 'round. My take has always been that NPS counts within the SAME program. IE if I can make my program 10% faster, purely by optimizations, then it will be better. If I make it 10% faster by stripping something out, it is not so clear. If A searches at X nodes per second, and B s...
by yorkman
Sat Apr 11, 2020 5:42 pm
Forum: Computer Chess Club: General Topics
Topic: 237 Mn/s for Stockfish on an 2xEPYC 7742
Replies: 81
Views: 10317

Re: 237 Mn/s for Stockfish on an 2xEPYC 7742

Yes of course, that's why I'm pushing for SF to at least investigate why it's so much slower on this hardware. I mean we're talking 100,000 kN/s difference here. NPS is important but I wouldn't use asmFish over SF in a correspondence game today unless it was only a little behind SF updates.
by yorkman
Fri Apr 10, 2020 3:46 am
Forum: Computer Chess Club: General Topics
Topic: 237 Mn/s for Stockfish on an 2xEPYC 7742
Replies: 81
Views: 10317

Re: 237 Mn/s for Stockfish on an 2xEPYC 7742

Ahh I forgot to test with BrainFish. Thanks. Yes, on my other dual Xeon E5-2696v3 I'd get about 10-15% more kN/s with LP enabled. On this system using Brainfish, with HT and LP enabled I get 37% more kN/s. That means I go from 140,000 kN/s to 192,000 kN/s. Still missing about 38,000 kN/s, or 20% tho...
by yorkman
Fri Apr 10, 2020 1:14 am
Forum: Computer Chess Club: General Topics
Topic: 237 Mn/s for Stockfish on an 2xEPYC 7742
Replies: 81
Views: 10317

Re: 237 Mn/s for Stockfish on an 2xEPYC 7742

In Aquarium I just tried the asmFish 2017-05-22-popcnt engine and I got 248,000 kN/s with LP and HT enabled in many positions. This is more like it. And I just realized that the bench is only giving me poor results like 94,000 kN/s when I bench with only 1024 MB of hash. When I set hash to 32GB I ge...
by yorkman
Fri Apr 10, 2020 12:48 am
Forum: Computer Chess Club: General Topics
Topic: 237 Mn/s for Stockfish on an 2xEPYC 7742
Replies: 81
Views: 10317

Re: 237 Mn/s for Stockfish on an 2xEPYC 7742

Sorry for the missing images from previous post. These should be working fine:

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