Search found 105 matches

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: 12132

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: 12132

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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by yorkman
Thu Apr 09, 2020 11:44 pm
Forum: Computer Chess Club: General Topics
Topic: 237 Mn/s for Stockfish on an 2xEPYC 7742
Replies: 81
Views: 12132

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

Clock speed starts at 1500 but it is 2800MHz when SF bench is running, and 3200MHz when asmFish bench is running. And with the 8 * 8 GB 2166MHz ram it seems I do get octal memory channel already. I thought I needed all dimm slots populated for that. https://ibb.co/Jc3fXGV and Aida64 Queen test: http...
by yorkman
Thu Apr 09, 2020 11:11 pm
Forum: Computer Chess Club: General Topics
Topic: 237 Mn/s for Stockfish on an 2xEPYC 7742
Replies: 81
Views: 12132

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

Actually hang on. I just realized the 2nd results with LP enabled says large pages are NOT enabled. But when I run SF with LP it says it's enabled. I think this is because when I added myself to Lock pages in Memory using gpedit.msc I did it when I renamed my computer name but didn't reboot so it wa...
by yorkman
Thu Apr 09, 2020 10:58 pm
Forum: Computer Chess Club: General Topics
Topic: 237 Mn/s for Stockfish on an 2xEPYC 7742
Replies: 81
Views: 12132

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

Yes of course I used a utilty to see the individual temps/clock speeds and each node is 2800 MHz with the turbo speed boost. As for $3200 for that ram...I spent all my savings on the cpus and the rest was supposed to be for ram 16x16GB (256 GB) of ECC DDR-3200 but that's on hold now since it's hard ...
by yorkman
Thu Apr 09, 2020 2:37 am
Forum: Computer Chess Club: General Topics
Topic: 237 Mn/s for Stockfish on an 2xEPYC 7742
Replies: 81
Views: 12132

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

Here are my results with SF9, the same as in the benchmark from this thread: ./stockfish-9-popcnt bench 1024 256 26 Total time (ms) : 519221 Nodes searched : 45414888487 Nodes/second : 87467356 Look at the Total time! Took forever to finish this benchmark in latest CentOS 8.1. Temps were fine in Win...
by yorkman
Thu Apr 09, 2020 1:32 am
Forum: Computer Chess Club: General Topics
Topic: 237 Mn/s for Stockfish on an 2xEPYC 7742
Replies: 81
Views: 12132

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

Thanks, but what version is that exactly? Just stockfish 9? So no dev version? Can one still actually download SF9? Here's what I just got in CentOS 8.1 with SMT/HT enabled and 8 dimms populated with 2166MHz ram (8 GB each): Total time (ms) : 299493 Nodes searched : 19609843392 Nodes/second : 654768...
by yorkman
Thu Apr 09, 2020 12:37 am
Forum: Computer Chess Club: General Topics
Topic: 237 Mn/s for Stockfish on an 2xEPYC 7742
Replies: 81
Views: 12132

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

So I just finished building my new 2x Epyc 7742 system on a Supermicro H11DSi-NT but I can't figure out why I only get about 80,000 kN/s in Windows with SMT/HT enabled or disabled. Only Linux is better as I get double that, 165,000 kN/s. If I disabled SMT/HT there's no difference. Anyone have this k...
by yorkman
Tue Jan 14, 2020 7:21 pm
Forum: Computer Chess Club: General Topics
Topic: 237 Mn/s for Stockfish on an 2xEPYC 7742
Replies: 81
Views: 12132

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

Were those SF and asmFish results running with HT enabled? And there's several benchmarks that shows these same engines on a dual 7742 get only about 196 Mn/s: https://openbenchmarking.org/result/1910176-AS-2XAMDEPYC12 Then there's STH's benchmark on a different system (Daytona_X) and got 275 Mn/s f...
by yorkman
Tue Jan 14, 2020 5:45 pm
Forum: Computer Chess Club: General Topics
Topic: Syzygy on RAM Drive
Replies: 23
Views: 6827

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.