Author: Robert Hyatt
Date: 08:37:48 03/05/03
Go up one level in this thread
On March 05, 2003 at 10:20:05, Vincent Diepeveen wrote: >On March 05, 2003 at 02:05:30, Aaron Gordon wrote: > >and those AMD chips are way faster than the intels too :) I'm still waiting for a > 2.1M nps number from Crafty's benchmark, no .craftyrc/crafty.rc file used. My 2.8 produced 2.16M nodes per second on the raw benchmark number... Of course this machine doesn't exist, so the numbers are imaginary. > >>On March 04, 2003 at 21:57:58, Nolan Denson wrote: >> >>>There are no draw backs when looking to get a computer that using >>>Hyper-Threading. If you do not like the feature you can just simply turn it off. >>>There are many system on the market that claims to be Hyper Threading enabled. >>>Intel has a utility program that checks for Hyper Threading ... >>> >>>1. You must have the proper CPU's. >>>2. You must have the proper motherboard. >>>3. You bios must support it. >>>4. Your Operating system must support it. >>> >>>Once these things are met your system will indicate that Hyper Threading is >>>enable before booting into the Operating System. >>> >>>It is not an indication that you will see when the computer is turned on and the >>>Bios is posting. >>> >>>Soon all of Intel processcor's will have Hyper Threading. So if what you are >>>using your processor slows down with Hyper Threading, just simply turn it off >>>via the Bios. >> >>How convenient. Have to reboot 20 times per day to turn it on/off just so your >>applications run optimally. I'll be sticking with the cooler running, faster, >>and cheaper AMD chips. :) >> >>>On March 04, 2003 at 17:39:42, Vincent Diepeveen wrote: >>> >>>>On March 04, 2003 at 16:32:33, Jay-R Delacruz wrote: >>>> >>>>>Do the deep versions of Fritz, Junior and Shredder support hyper-thread? Can >>>>>someone please tell me before upgrading my PC to try the deep versions? >>>> >>>>I just read email from Frans Morsch. DeepFritz7 gets 5-10% speedup by >>>>hyperthreading. >>>> >>>>Shredder gets more speedup in nodes a second than that, but it gets no speedup >>>>from it as it gets SMP already a far smaller speedup (1.5 or so), so it is >>>>smarter to turn SMT/HT off for it. perhaps shredder8 will fix this. >>>> >>>>For diep it speeds me up about 11% in NPS but i cannot garantuee that at a 4 >>>>processor it will give a positive speedup. >>>> >>>>When running 2 processes at a P4 at 3.06ghz it will give for sure some speedup >>>>because it goes from 100k nps to 120k nps. Nearly 20% speedup it gets with it >>>>(18.6 or something) which gives a positive speedup also in depth. >>>> >>>>For deepjunior we know that it already works bad at 8 processor Xeon 1.6Ghz >>>>versus 4 processor Xeon 1.9Ghz, so i *assume* for now that SMT/HT will not give >>>>it much benefit for it at all, but perhaps Amir or Shay wants to give a >>>>statement regarding this themselves. >>>> >>>>We talk of course about the SMT/HT from Xeon processors up to 2.8Ghz now for >>>>those which have it enabled. For the P4 3.06Ghz and also Xeons of that and above >>>>things are a different matter. >>>> >>>>Best regards, >>>>Vincent
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