Gaviota tablebases - how many files? - how big?

[Marek Soszynski]

I have already generated the 4-man Gaviota tablebases. It didn't take long.

Right now I'm generating the complete 5-man bases. How many files will there be in total? And roughly how large altogether?

[velmarin]

Tablebases Gaviota in compresion 4.
3,4 an 5 mem.
145 archives.
7.025.792.015 bytes.

Information and download:
http://www.olympuschess.com/egtb/gaviota/

[Marek Soszynski]

Tablebases Gaviota in compresion 4.
3,4 an 5 mem.
145 archives.
7.025.792.015 bytes.

Information and download:
http://www.olympuschess.com/egtb/gaviota/

Thanks, I didn't want to do the arithmetic!

[IGarcia]

Tablebases Gaviota in compresion 4.
3,4 an 5 mem.
145 archives.
7.025.792.015 bytes.

Information and download:
http://www.olympuschess.com/egtb/gaviota/

Thanks, I didn't want to do the arithmetic!

This is from Gaviota tablebase website

Generation Time and Space Required

The time needed to generate all 5-piece table bases varies according to your hardware. For instance, Ignacio García reports that in a core2 duo E8500 it takes 69 hours to generate them, half an hour to verify them, and 6.5 hours to compress them. In faster quads, the total generation and compression time could take as little as 30 hours (Martin Thoresen) .

What is required to generate these TBs is at least 50 GB available in a hard disk. You will need ~39 GB for the uncompressed files and then ~6.5 GB to build the compressed ones. Once you obtain the compressed versions, the uncompressed ones can be deleted. If you compress them with the -r switch, 40 GB is enough, since each file is removed after it is compressed.

Important!
You can interrupt at any time. When you start again, the program knows at what point you stopped and it continues from there.

50Gb Look at extra temporaty space... also have to take into account the download time vs generation time. today we have fast hardware to generate and also fast internet conections!