4

I have downloaded a copy of the 6 man Syzygy tablebase and configured it on my Fritz 15 GUI.

Due to obvious memory constraints, the full 6 man Syzygy tablebase cannot be loaded into memory (ie. ramdisk). Will I gain any benefit moving some of the 6 piece tablebase files onto a ramdisk, and if so, which piece combinations should I gain the most benefit from (ie. in terms of endgame positions). Has anyone done analysis in this area?

Currently I host my 6 piece Syzygy tablebase on my Synology NAS via iSCSI.

2

I have been doing this a lot recently. My iOS Syzygy 6-men apps require at least 2GB (possibly more) to run, which is not so easy for iPhones and iPads.

  • You gain the most benefit if you follow https://shop.chessbase.com/en/products/endspiel_turbo_4. This is also how I distribute.
  • Stockfish only memory map (mmap) your tablebase file when it is needed. So you might choose your files depend on what position you want.
  • I can't comment on iSCSI, NAS etc.
1

During search engines access the *.rtbw files only. These are best placed on your fastest local drive (ca. 70 GB). Low latency is more important than bandwidth.

The *.rtbz files are not speed critical. They are needed at the root only, when playing out 6-man positions.

The caching is best left to your OS.

  • All engines supporting Syzygy require the files be in the same physical path. – SmallChess Jan 28 '17 at 5:12
  • Most allow specifying multiple paths, for example separated with : in Stockfish. – Niklas Aug 11 '18 at 22:38

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.