Gaviota EGTBs: How long to generate 5-men TBs?

[Joerg Oster]

Does anybody have an estimation?
Generating the 4-men took 229 sec on my Quad Q6600.

My Download speed is only 384kbit/s, so the complete download should take a while.
Generating them is probably faster, isn't it?

[Martin Thoresen]

First I generated all 3-4-5 men and then compressed it all with compression scheme 3 (cp3) with verification enabled.

The total amount of time was something like 30 hours.

This was on my Core i7 980x @ 4303 MHz.

[Joerg Oster]

Thank you for your quick reply, Martin.
So generating them should be faster on my machine as well.

[Jouni]

Can You interrupt calculation and continue later?

Jouni

[Martin Thoresen]

Can You interrupt calculation and continue later?

Jouni

Yeah, that's no problem. When you stop the generation and
restart it, it will first check what pieces you already got.

[jshriver]

I forget how long it took me but I did it on an old P4. Think the compression also took a good bit of time. With modern hardware I would suspect it would be a lot quicker especially with smp support.

You can try downloading them from my site to see if it's any quicker.
-Josh

http://olympuschess.com/egtb/gaviota/

[Joerg Oster]

For those interested:
It took 24h 21 min to generate all 5men EGTBs on my Quad. Tbcheck gave no errors.
Now I only need to compress them, which might take some hours again.

But still much faster than downloading.

[Sven]

For those interested:
It took 24h 21 min to generate all 5men EGTBs on my Quad. Tbcheck gave no errors.
Now I only need to compress them, which might take some hours again.

But still much faster than downloading.

Hmmm, depends on your download speed. When I downloaded all 5men Gaviota files I was lucky to use a very fast link, and it took me less than 2 hours.

Sven

[Milos]

For those interested:
It took 24h 21 min to generate all 5men EGTBs on my Quad. Tbcheck gave no errors.
Now I only need to compress them, which might take some hours again.

But still much faster than downloading.

Hmmm, depends on your download speed. When I downloaded all 5men Gaviota files I was lucky to use a very fast link, and it took me less than 2 hours.

He stated in his opening post that his downloading speed is 384kb/s which means it would take him roughly 38 hours to download all in the smallest case.

[M ANSARI]

This is getting really interesting and maybe we will reach the stage where calculating EGTB's "on the fly" is getting close. I always thought a hardware solution would be a much better and faster option, albeit more expensive. I wonder if today's programmable GUI cards that can be configured as 2 way or 4 way (maybe even more) SLI or Crossfire is a possible option. Or maybe several Tilera card with 100 processors in series. There are still some very tangible gains for improvement of chess play in engines, most notably 7 or 8 piece EGTB's where rook and pawns are involved.