Author: Andrew Dados
Date: 11:40:42 12/04/01
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On December 04, 2001 at 11:56:59, Robert Hyatt wrote: >On December 04, 2001 at 04:04:37, Jonas Cohonas wrote: > >>On December 03, 2001 at 22:11:59, K. Burcham wrote: >> >>> >>> >>>it seems you got about a 30% speed up in this example, even though it misses the >>>move. >>>also my task manager shows that deep fritz is using 100% of both processors. >>> >>>but what really bothers me---if i log into the fritz7 server, even though >>>the software is running everything, time etc., it is still using my engine >>>in my pc for the game. so i dont understand the big speedup at fritz7 server. >>> >>>kburcham >> >>I got a big speedup with DF on the F7 server in the first game played, after >>that it was back to "normal". There must be a bottleing up of something in DF >>because the speedup almost get's worse for each game. >> >>It would be nice with an upgrade that would fix tthis. BTW i spoke to a guy at >>the F7 server who were testing a beta version of DF7 and he said he got a 35% >>speedup. >> >>To anyone who would be qualified to answer this: could the lack of or poor >>speedup be caused by the fact that DF was written so it could be used with 1 >>processor too? >> >>Regards >>Jonas > > >I don't see how. IE the SMP version of crafty will use one or two or four >cpus with no problems. And the SMP version is roughly .005% slower than the >non-SMP version when run on a single processor. The only reason I distribute >two versions of crafty executables (SMP and non-SMP) is to prevent someone from >using the SMP version on a single cpu, and telling it to use two threads. That >will absolutely kill performance. Can't you just auto-detect this? Most OSes provide cpu number easily. -Andrew-
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