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pasky / pachi

A fairly strong Go/Baduk/Weiqi playing program
http://pachi.or.cz/
GNU General Public License v2.0
514 stars 117 forks source link

Compiled from source with DCNN support Pachi 12.40 uses only 1 CPU core #121

Closed GD-fix closed 1 year ago

GD-fix commented 5 years ago

OS: OpenSUSE Tumbleweed

Non-default compile parameters: Makefile - DOUBLE_FLOATING=1 PREFIX ?= /usr build.h: Makefile patternsp.h -

define spatial_hash_bits 30

The engine used only 1 core during thinking (with --nodcnn too and on pondering too) regardless of given (and rightly repeated on engine loading output) threads parameter value, while binary version (pachi-12.40-amd64) used given number of cores. But in sparring with itself compiled engine (only on white side) used given number (2) of cores (but used half the amount of memory: 4 GiB instead of 8 GiB after loading before game starting, while version compiled without using DCNN on OpenSUSE 12.3 always used given number of cores and 8 GiB of memory on start up)...

Is it possible to compile Pachi with DCNN from source so that this engine will use cores, how it uses pachi-12.40-amd64? Thanks in advance.

P.S. All compiled versions (on all systems) launched without "make install".

GD-fix commented 4 years ago

The PachiDCNN 12.50 version keeps the bug. Moreover, the Pachi 12.50 version became weaker (http://rugo.ru/read.php?2,68490,8034224,page=21#msg-8034224)...

lemonsqueeze commented 4 years ago

Hi, Sorry i don't have time to investigate this at the moment, but looks like there is something wrong with your build. It's also possible something strange is happening when building on OpenSuse, which i haven't tried. If you want this fixed try troubleshooting the problem yourself :

GD-fix commented 4 years ago

The pachi-12.50-amd64 --dcnn=darkforest cann't beat the simple (without any NN) Ray (http://rugo.ru/read.php?2,68490,8034225,page=21#msg-8034225)...

GD-fix commented 4 years ago

Hi!

"...bring it up in the debugger and find what's going on with core logic..." On console (on engine loading output) threads parameter value is true. How I must bring it up in the debugger (step by step)?

Thanks in advance.

GD-fix commented 3 years ago

v. 12.60: -all the same...

GD-fix commented 1 year ago

v. 12.70: - doesn't compile at all. Issue is closed due to the lack of any meaning...