Author: Robert Hyatt
Date: 18:04:11 03/05/04
Go up one level in this thread
On March 05, 2004 at 08:47:24, Vincent Diepeveen wrote: >On March 04, 2004 at 13:28:53, Keith Evans wrote: > >>On March 04, 2004 at 12:42:24, Vincent Diepeveen wrote: >> >>>On March 04, 2004 at 09:44:00, Bryan Hofmann wrote: >>> >>>>On March 03, 2004 at 21:29:39, David B wrote: >>>> >>>>>I have a Tyan 2885 currently not sure if its a bios setting or just an OS >>>>>setting within Windows 2003 Enterprise Edition though its supposed to support >>>>>numa which to the life of me I can not get it to do. Each processor currently >>>>>is running 1gig of ram with Opteron 244's >>>>> >>>>>Thanks >>>> >>>>I recommend reading the following; >>>> >>>>http://www.tyan.com/support/html/f_s2885.html >>> >>>David, >>> >>>Except for DIEP which has NUMA versions, and SOS which is multiprocessing too, >>>but heavily relying upon shared memory, which program do you plan to run that >>>profits from a NUMA machine setup? >>> >>>Nevertheless in your manual from your tyan mainboard you can find how to get >>>numa to work. If i remember well the best thing to do is just fill up all memory >>>banks with memory. That's the best way to do it always. >> >>I understand that Crafty supports NUMA under Windows. > >All crafty does do is put a thread to a specific cpu. Though that is important >condition to run NUMA, it doesn't mean that all other stuff you need for NUMA >gets used. There is far more to it than that. Bit continue digging your way to stupidity, you are doing a good job so far... > >It's multithreading of course, so it's completely SMP in that respect. multi-threading does _not_ mean non-NUMA. Perhaps you can't do it, as ususl... > >I've already explained it a dozen times here. Bob just claims it's NUMA, but he >has not even written the code himself, so he doesn't even know what he talks >about. Have you seen my linux numa code? of course not as I chose to not to release the libNUMA changes because most kernels don't support it. But don't let a complete lack of information keep you from spouting nonsense and looking (as always) like a complete fool... We're all pretty well used to it by now... > >I claim the dual opteron platform to be a better SMP platform than dual P4 Xeon >or dual K7. That it is NUMA too is just good for those who support NUMA. Crafty >in itself will NOT run at NUMA hardware like Origin3800 or Altix3000. > >There NUMA means the random latency from this processors memory to other >processors memory is *significant* slower than that of the SMP machines. > >So crafty is not NUMA at all. It doesn't run on NUMA machines other than the >only NUMA machine where SMP is faster than SMP at others. > >Best regards, >Vincent
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