This post to share the open source engines i have managed to compile or found for my little Raspberry Pi 4 with Ubuntu Mate 64 bits.
These are working fine under Arena 3.9Beta for Linux aarch64 version (http://www.playwitharena.de/downloads/a ... eta.tar.gz).
For an idea of engines performance in k/ns with this platform, its 4 cores are like 75 to 100% of 1 core of an old i2500K.
The list of engines :
- Cfish 12 (official armv8 compile)
K2_096-dev (not using all the cores even if 4 threads in GUI)
Senpai 2 (not using all the cores even if 4 threads in GUI)
Stash bot 23
Also you get with Arena 3.9beta for Linux the following engines :
- Arasan 21.4
May be some of them could get little compilation tweaks by a pro compiler. If engine authors could give some love to this platform including the right profile and flags in their makefile it would be awesome.
Also feel free to share your compilations by replying to this thread if you have other engines or if yours are more optimized and have better k/ns performance.
Special demand : if someone could compile the crafty 25.6 uci for this little machine it would be awesome since i couldn't do it and Crafty has always been one of my old loved engine.
Special thanks to Rasmus Althoff for his initial help.