Search found 274 matches

by Sesse
Fri Dec 18, 2020 9:48 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Asynchronous tablebase lookups
Replies: 9
Views: 1604

Re: Asynchronous tablebase lookups

I'm not actually sure if you want to search beyond a probe; if it's a 7-man situation, you probably just want to go on to some other part of the tree. The probe is going to come back eventually… but it might not yield a cutoff.
by Sesse
Fri Dec 18, 2020 12:37 am
Forum: Computer Chess Club: General Topics
Topic: 5950X boost clocks
Replies: 27
Views: 3345

Re: 5950X boost clocks

I see now that I've been benchmarking the wrong thing for the Ipman test (I didn't see the text at the top of the page); I just took the default start position, so if anybody has wanted to compare these numbers against anything, here are my values: Total time (ms) : 1669 Nodes searched : 130256121 N...
by Sesse
Thu Dec 17, 2020 5:19 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Asynchronous tablebase lookups
Replies: 9
Views: 1604

Asynchronous tablebase lookups

Since tablebases became commonplace, the storage landscape has shifted. Modern SSDs can reach staggering speeds; a single WD SN850 (a high-end consumer/prosumer NVMe disk) can reach one million IOPS! However, at QD1 (serial access), this drops to 1/50th of that (21k IOPS). And a chess engine typical...
by Sesse
Thu Dec 17, 2020 11:33 am
Forum: Computer Chess Club: General Topics
Topic: 5950X boost clocks
Replies: 27
Views: 3345

Re: 5950X boost clocks

Nordlandia wrote:
Thu Dec 17, 2020 10:28 am
1. Can i ask why not.
No, you cannot. :-)
Nordlandia wrote:
Thu Dec 17, 2020 10:28 am
2. Also the time is ripe to upgrade the sesse hardware in addition to invest in SSD that can store whole 7-piece WDL. 7-piece DTZ can be stored on HDD or external drive.
I don't have anything to announce at this point.
by Sesse
Thu Dec 17, 2020 10:15 am
Forum: Computer Chess Club: General Topics
Topic: 5950X boost clocks
Replies: 27
Views: 3345

Re: 5950X boost clocks

corres wrote:
Thu Dec 17, 2020 8:37 am
If you use Ryzen Master it displays the actual Vcore for every each core.
For the Nth time—I don't use Windows.
by Sesse
Wed Dec 16, 2020 10:54 pm
Forum: Computer Chess Club: General Topics
Topic: 5950X boost clocks
Replies: 27
Views: 3345

Re: 5950X boost clocks

I have no idea what the Vcore was—I didn't modify it. The temperature was around 60 degrees for the single-thread tests.
by Sesse
Wed Dec 16, 2020 9:09 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Recommendation for C++ Programming Forums?
Replies: 9
Views: 1839

Re: Recommendation for C++ Programming Forums?

Harald wrote:
Wed Dec 16, 2020 7:05 am
http://www.cplusplus.com/
This is a good starting point and reference for C++ syntax. They also have a forum link on the start page. I have not tested that.
en.cppreference.com is usually much more precise than cplusplus.com, without being harder to understand.
by Sesse
Wed Dec 16, 2020 12:49 am
Forum: Computer Chess Club: General Topics
Topic: 5950X boost clocks
Replies: 27
Views: 3345

Re: 5950X boost clocks

I run Linux, huge pages come automatically (THP).
by Sesse
Tue Dec 15, 2020 9:15 pm
Forum: Computer Chess Club: General Topics
Topic: 5950X boost clocks
Replies: 27
Views: 3345

Re: 5950X boost clocks

I switched motherboards (from Asus B550-F to B550-E) for unrelated reasons, and just to be sure, reapplied thermal paste in the process (it didn't look like anything was wrong with it, though). The change was significant; pretty much every core now boosts 150–200 MHz higher than before, with two cor...
by Sesse
Tue Dec 15, 2020 11:56 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Position Causes Stockfish and Komodo To Crash
Replies: 135
Views: 14293

Re: Position Causes Stockfish and Komodo To Crash

syzygy wrote:
Tue Dec 15, 2020 4:07 am
[But then you're still advocating for a false sense of security.
Or perhaps just for increased reliability, which is related to security but not the same.