Search found 362 matches

by noobpwnftw
Tue Oct 22, 2019 11:14 am
Forum: Computer Chess Club: General Topics
Topic: Ryzen problems - AGAIN!
Replies: 16
Views: 1515

Re: Ryzen problems - AGAIN!

OK, so you have to see if the new Agesa version fixes it. If you have purchased a large quantity of MB's I would talk directly to your MB manufacturer as they may have a partial list of fix the new version will address and be able to give you a firm date when they will release new bios with the bug...
by noobpwnftw
Tue Oct 22, 2019 10:53 am
Forum: Computer Chess Club: General Topics
Topic: Ryzen problems - AGAIN!
Replies: 16
Views: 1515

Re: Ryzen problems - AGAIN!

Well the problem is already well-known: https://bugzilla.kernel.org/show_bug.cgi?id=196683 Basically what it takes to be safe is to either use a crippled kernel or a crippled BIOS, which disables C-STATES and turbo boost. What really frustrates me is that for stuff like CPUs I would assume them to b...
by noobpwnftw
Tue Oct 22, 2019 5:11 am
Forum: Computer Chess Club: General Topics
Topic: Ryzen problems - AGAIN!
Replies: 16
Views: 1515

Ryzen problems - AGAIN!

Previously I had 100 Zen1(Ryzen) chips and they all had the segfault bug, took me more than 3 months to "reproduce" the bug, then 2 attempts before an RMA: the first attempt failed when I told them I had 100 of them, they kick me back and forth between the distributor and AMD customer service, the s...
by noobpwnftw
Tue Oct 22, 2019 2:58 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Move repetitions in tree search + transpositions
Replies: 13
Views: 947

Re: Move repetitions in tree search + transpositions

How is that contradicting? First they make a mistake then you make a mistake back to get to the position. Since your move was a mistake it will hardly be expanded since the better alternative for you would actually be winning. If this ever occurred then apply rule #2 and move on? That's not what I ...
by noobpwnftw
Tue Oct 22, 2019 2:08 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Move repetitions in tree search + transpositions
Replies: 13
Views: 947

Re: Move repetitions in tree search + transpositions

But what if the shortest path doesn't want to expand it because the shortest path included an opposition mistake which gives us a much better option to focus on? But in the main line where this position shows up later this is the main move which we want to expand a lot? Well that is contradicting: ...
by noobpwnftw
Tue Oct 22, 2019 12:20 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Move repetitions in tree search + transpositions
Replies: 13
Views: 947

Re: Move repetitions in tree search + transpositions

Very simple: 1. Only the path of globally shortest occurrence of a node gets the right to explore its child. 2. On other occasions treat it as a terminal node and adjust the score locally if the path indicates a repetition. Your search is breadth first, if you get to a node with a longer path, then ...
by noobpwnftw
Mon Oct 21, 2019 7:00 pm
Forum: Computer Chess Club: General Topics
Topic: Database snapshot
Replies: 114
Views: 15702

Re: Database snapshot

Then we are on the same page, nothing is perfect, but we can make it good enough. Provided this data, I also want to seek for alternative methods that are more efficient in improving this overall confidence level, while one can always go for higher depth/more MultiPV but that is exponentially expens...
by noobpwnftw
Mon Oct 21, 2019 5:54 pm
Forum: Computer Chess Club: General Topics
Topic: Database snapshot
Replies: 114
Views: 15702

Re: Database snapshot

in cc game play which uly tends to rely upon always. This is precisely the difference, I understand that sometimes more depth is required to find the winning moves, but it is not practical to do that for every position. So that is why the statistics, if we can raise the overall confidence level of ...
by noobpwnftw
Mon Oct 21, 2019 5:47 pm
Forum: Computer Chess Club: General Topics
Topic: Database snapshot
Replies: 114
Views: 15702

Re: Database snapshot

I replied to this statement of Uly. He hasn't stated he is making billion database positions with it either. He just stated his thought of taking depth 22 is optimal for human interactive analysis which seemed to match thought of yours and he has stated here in other threads too. If I get it will l...
by noobpwnftw
Mon Oct 21, 2019 4:40 pm
Forum: Computer Chess Club: General Topics
Topic: Database snapshot
Replies: 114
Views: 15702

Re: Database snapshot

Also my comment was in related to analyze positions of a corr game not to create a database of opening positions. Read what I wrote above in point 1 too. Of course, then why does any method of personal satisfaction has anything to do with how the database is calculated, I don't understand. No, nobo...