Blog "Chess Engines Diary" - needs a new laptop for chess engine tests

♔ We use for testing only 2 old laptops:
1. Acer - Intel Core i3-3217U ( 5 years old)
2. Lenovo - Intel Core i7-4710MQ is over 3 years old (He works 24 hours a day)

♕♞ A modern laptop that will be designed only for chess engine tests costs (with software) about $ 1000-1200 (4200-4500 PLN). We will no longer invest private money, and chess engine testing costs are big. That is why we are starting the collection for the purchase of a laptop for testing.

♕ Our blog "Chess Engines Diary" is visited by around 2,000-3.000 users daily. If only everyone paid 1 dollar - we will pay the required amount in one day!


Wednesday, January 3, 2018

Stockfish 18010113 - new version!

Stockfish, chess engine UCI

Rating JCER = 3389
🔬 Author: Joost VandeVondele 

Timestamp: 1514809071 

Explicitly zero TT upon resize. 

as discussed in issue #1349, the way pages are allocated with calloc might imply some overhead on first write. 
This overhead can be large and slow down the first search after a TT resize significantly, especially for large TT. 
Using an explicit clear of the TT on resize fixes this problem. 

Not implemented, but possibly useful for large TT, is to do this zero-ing using all search threads. Not only would this be faster, it could also lead to a more favorable memory allocation on numa systems with a first touch policy. 

No functional change.

⭐⭐⭐   Stockfish 18010113 - download

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