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Xavier ? - speed

Posted By: eXtreme Gammon
Date: Sunday, 9 January 2011, at 3:00 a.m.

In Response To: Xavier ? - speed (Jake Jacobs)

Jake: So there wouldn't be any gain running XG on a machine with 48 GB memory?

No there would be no gain. V1 can use up to 1 GB memory for cache. I changed V2 to allow up to 2 GB. however, as XG is a 32 bit program it cannot access more than 4GB of memory.

I am (in)patiently waiting for the 64-bit compiler for Delphi. in 64 Bit I'd be able to use more memory. However the gain from 1 GB cache to 2 GB cache is rather small and the one from 2 to 4 will be even smaller

I don't really know what to expect (performance wise) from a 64 bit version, I know i'll be able to optimized a few routines such as the one comparing 2 positions or inverting a position but that's about it.

Messages In This Thread

• Rollout Machine
  Kye Hedlund -- Saturday, 8 January 2011, at 4:10 a.m.
  • Rollout Machine
    KenB -- Saturday, 8 January 2011, at 5:14 a.m.
    • Xavier ? - speed
      neilkaz -- Saturday, 8 January 2011, at 8:44 a.m.
      • Xavier ? - speed
        eXtreme Gammon -- Saturday, 8 January 2011, at 2:50 p.m.
        • Xavier ? - speed
          Jake Jacobs -- Sunday, 9 January 2011, at 2:25 a.m.
          • Xavier ? - speed
            eXtreme Gammon -- Sunday, 9 January 2011, at 3:00 a.m.
      • noise?
        6stones -- Saturday, 8 January 2011, at 9:15 p.m.
  • Rollout Machine
    higonefive -- Saturday, 8 January 2011, at 10:32 a.m.
  • Rollout Machine
    eXtreme Gammon -- Saturday, 8 January 2011, at 2:40 p.m.
  • Rollout Machine - about Xeon
    eXtreme Gammon -- Saturday, 8 January 2011, at 2:58 p.m.