Author: Anthony Cozzie
Date: 12:39:18 05/16/04
Go up one level in this thread
On May 16, 2004 at 13:56:23, Tom Likens wrote: >On May 16, 2004 at 13:17:17, Anthony Cozzie wrote: > >>On May 16, 2004 at 11:10:01, Omid David Tabibi wrote: >> >>>On May 16, 2004 at 11:05:36, Anthony Cozzie wrote: >>> >>>>On May 16, 2004 at 10:14:07, K. Burcham wrote: >>>> >>>>> >>>>>Has anyone here posted using dual 248s? >>>>>wonder how 2 x 248 AMD compares to dual Xeon 3.2 with 1 meg cache running a 32 >>>>>bit commercial chess program? >>>>> >>>>>http://www.newegg.com/app/viewProductDesc.asp?description=19-103-433&depa=0 >>>>> >>>>>http://www.monarchcomputer.com/Merchant2/merchant.mv?Screen=PROD&Store_Code=M&Product_Code=120140 >>>>> >>>>>kburcham >>>> >>>>Like Mike, I have dual 246s. Opteron is a great CPU, but the 64-bit software >>>>isn't *quite* ready, at least on linux (imo). >>> >>>Running 32 bit chess engines on that system, how much speedup do you see in >>>comparison to the fastest 32 bit dual system? >> >>I wouldn't know. I only run 64 bit linux :) It works pretty well, but there >>are definitely a few bugs left. I'd say in another 3 months my system will be >>good enough for me (new nvidia drivers, a few more kernel versions). >> >>anthony >> >>>> >>>>anthony > >Anthony, > >Are you running 64-bit SUSE or one of the Red Hat flavors? I've got an FX-51 >that I initially loaded 32-bit SUSE on (this was before SUSE supported SATA >drives right out of the box) and was pleasantly surprised at how fast the >32-bit programs ran (chess engines included). When I finally installed the >64-bit version, I was unpleasantly surprised at how *slow* the 32-bit software >ran (including and especially the various Linux engines I test against). > >I got the requiste 64-bit boost when I converted Djinn over to a true 64-bit >program but was somewhat dismayed with the 32-bit slowdown of its sparring >partners. I *could* dual-boot into a 32-bit version of Linux for testing but >frankly that offends my sensibilities and seems like a bit of a waste. > >regards, >--tom Hmm, I haven't tried. I usually test against crafty, and I compiled a version in 64-bit mode. I would have thought that 32 bit apps would run quickly because this is essentially _hardware_ emulation, but maybe not . . . . anthony
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