Seti@Home optimized science apps and information
Optimized Seti@Home apps => Windows => Topic started by: jezek on 02 Feb 2007, 09:45:13 am
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Hello I am using optimalized app on several PC's and it runs great. But on my Kentsfield I run version 1.41 with SSSE3 and I have worst results than others with P4 @ 2.6GHz as I see. They doing it in 2 000s but my QX6700 in 4500s. Can somebody help me please?
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Not sure exactly what you are referring to...
Pehaps it could be each WU has an angle range that was used when it was collected at arecibo.
To compare how long a given WU takes for different optimized crunchers you need to make sure you are comparing WUs on each machine that have as close an angle range as possible.
Angle ranges are not reported in normal web areas when you are looking at your results pages (http://setiathome.berkeley.edu/results.php?hostid=2739880), instead from a results page you must click on any link, under the Result ID column (for completed WUs) and look in the "stderr out" area for "True angle range:" or "ar=".
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I'm sorry. I'm talking about same WU on 2 different PC with different application. 1.PC is QX6700 with SSE3 optimalized client 2.P4 @ 2.6GHz with un-optimalized client. They doing same WU (with same true angle rate).
My optimalized QX6700 had 4700second for this WU and really much slowest P4 with unoptimalized client needs only 2000s.I just want to know why? Is there problem in client?
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A couple of ideas there that may or may not apply:
first remember a Test WU is run on one core only: so it alone probably shouldn't run all that much faster than the p4 running one WU but:
1- In real use The kenstfield would run 4 workunits at once making the average WU time 4500/4 = 1125 secs ... approx twice as fast as the P4 ( @ 2000secs ) many people are eagerly awaiting a new appp for these cpus, you aren't alone.
2- The p4 would be running v2 stock apps? these are a lot newer ( better ? ) than 1.41 on most all other cpus except the core2's....
3 - people have been discussing on the seti@home forums about memory bandwidth coming into the problem, 4 processors competing on the same memory bus is a challenge and even people running Xeons with ram in quad channel mode are finding a bottleneck.
4 - let them run and compare individual RACS when stabilsed... that may be a more reliable judge.
Just some ideas, Wish I owned a kentsfield. Good luck finding out what's going on :D
jason
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Yes, memory bandwidth is a MAJOR concern with a quad. 4 cores competing for memory access is a definate bottlneck. If you are OC'ing, back off on the RAM timings and go for more bandwidth, it helps...I am here to tell ya.
Also, if you are just looking at crunching times in the last week or so....SETI has been parsing out a lot of crappy little WUs lately (trying to keep it polite, I could use other terms). Cleaning the dusty tapes out of the vault (Matt's bookshelf). Much crunch, few points. The 1.41 app for the core 2 is the best thing going at this time overall, but it sure has a weak point, and they are it.
So, hang in there, check the results you are looking at to see if the rig you are ocmparing to is OCd or at stock speed. Check your rig to see if you have thermal limiting downclocking your cpu.
Good luck and good crunching.
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Thanks to all for their ideas. I didn't do any OC because I have cooling problems @ highter speeds.I'm running stock speed @ about 50°C (all cores) in full SETI. I think that the main problem is memory brandwidth.I have new Corsairs on the way and now runnig 667MHz CL5 in single channel that is the main problem. I forgot it... Ones more thanks for your time :)
Fast,faster,fastest crunching.
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Thanks to all for their ideas. I didn't do any OC because I have cooling problems @ highter speeds.I'm running stock speed @ about 50°C (all cores) in full SETI. I think that the main problem is memory brandwidth.I have new Corsairs on the way and now runnig 667MHz CL5 in single channel that is the main problem. I forgot it... Ones more thanks for your time :)
Fast,faster,fastest crunching.
You should see a definate improvement by getting your RAM in dual channel mode.
And I would highly suggest looking into a better cpu cooling solution. If you are running at 50c at stock speed, either your case temps are a bit high, or your cpu cooler is just not quite up to the task. I have had great results with the Thermaltake Big Typhoon and Arctic Silver AS5, but if you check out the various OC'ing forums, other folks have their favorites as well.
Good luck and good crunching!
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Thank you, I have now 2x1GB Corsair XMS2 800MHz CL4 in dual channel and it's crung very well ;D
As CPU cooler I'm using Thermalright Ultra 120 with Noctua 1200rpm fan. I have in PC Probe II about 43°C in full load and Core Temp tells me that cores have about 60-67°C thats ok I thing (Tjunction is 100°C).
With case you are right I must do something with airflow. Now I have 1200rpm intake and 800rpm outtake fan. And it's not enought I think.
Fast,faster,the fastest crunching... (by Intel) ;D
P.S. How fast you are going with QX6700? And with how high Vcore? I tried 3.2GHz @ 1.4V (QX6700 B3 revision ES)
Thanks
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I have an Intel D975XBX2 with the QX6700.
Intel Desktop Utilities tell me 22°C to go to max. (BOXed Fan on 2.000RPM) (room 22°C)
CoreTemp tell me 71 - 79 °C
I let run my QX6700 2,5 months with this temp... when the temps right... I would have burned my QX6700...
because:
I called Intel today: max. temp. 65°C ! :o
http://processorfinder.intel.com/details.aspx?sSpec=SL9UL#
Yesterday: BOXed Fan on max. ~ 2.780 RPM and IDU shop me 30°C to the max.
CoreTemp tell me 61 - 69 °C
So I ~n't think that CoreTemp show you/us/me the right temps from the QX6700...
I had probs now with the Rev.2.2B...
Boinc frozen...
Now I have my PC off... :'(
ordered Arctic Silver 5, Thermalright SI-128...
Soon he will run again... with better temps... I hope!
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Thank you, I have now 2x1GB Corsair XMS2 800MHz CL4 in dual channel and it's crung very well ;D
As CPU cooler I'm using Thermalright Ultra 120 with Noctua 1200rpm fan. I have in PC Probe II about 43°C in full load and Core Temp tells me that cores have about 60-67°C thats ok I thing (Tjunction is 100°C).
With case you are right I must do something with airflow. Now I have 1200rpm intake and 800rpm outtake fan. And it's not enought I think.
Fast,faster,the fastest crunching... (by Intel) ;D
P.S. How fast you are going with QX6700? And with how high Vcore? I tried 3.2GHz @ 1.4V (QX6700 B3 revision ES)
Thanks
Right now I am running at 3408mhz, 426 x 8, ram is at 532.5mhz/1065ddr speed, 5-5-5-10 timings. Asus Probe shows 57c at full load, vcore is 1.42v in Probe, bios is actually set to 1.525. Mobo is an Asus Commando.
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Right now I am running at 3408mhz, 426 x 8, ram is at 532.5mhz/1065ddr speed, 5-5-5-10 timings. Asus Probe shows 57c at full load, vcore is 1.42v in Probe, bios is actually set to 1.525. Mobo is an Asus Commando.
Hello!
If you take CoreTemp, which temps you have?
You saw maybe my posts with my temps...?
Friendly greetings!
EDIT:
I saw you use Arctic Silver 5...
How you used it...
You took only a small piece to the heatsink, or to CPU too?
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Right now I am running at 3408mhz, 426 x 8, ram is at 532.5mhz/1065ddr speed, 5-5-5-10 timings. Asus Probe shows 57c at full load, vcore is 1.42v in Probe, bios is actually set to 1.525. Mobo is an Asus Commando.
Hello!
If you take CoreTemp, which temps you have?
You saw maybe my posts with my temps...?
Friendly greetings!
EDIT:
I saw you use Arctic Silver 5...
How you used it...
You took only a small piece to the heatsink, or to CPU too?
Asus Probes reads 56-57c, Coretemp reads 80-82c. I believe the difference (anybody correct me if I am wrong) is that Probe's reading comes from a thermal diode in the cpu package the same as the bois hardware monitor does, and Coretemp is reading the DTS information directly from the cpu. My understanding is that tthe DTS information is actuallly a more accurate reading of the actual cpu die temperature.
As far as the AS5 goes, I have lapped both my cpu and the bottom of the TTBT cooler that I use (I did not see much difference between lapped and non-lapped temps, but was making other changes at the same time, so did not have a direct A-B comparison). I usuallly apply the AS5 to the surface of the cpu and then spread it out by using the edge of a credit card (a razor blade works well also) back and forth until I have a very thin, smooth coating of AS5 across the entire face of the cpu I then mount the heatsink and remove it to check if I have the paste transferred evenly from the cpu to the heatsink, ensuring that the mounting is even and I have enough paste to join both surfaces. You want to use as little paste as possible while still assuring full contact between the cpu and heatsink. When this looks right, I than use the credit card again to carefully smooth the compound out on both the cpu and heatsink, and do the final mount.
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But hey...msattler....doesn't that give you razor thin performance margins???
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But hey...msattler....doesn't that give you razor thin performance margins???
If you are asking my if my OC is on the edge, the answer is YES. If I raise the fsb only 2 mhz, it will start to reboot every couple of hours. Currently it will only reboot mebbe once a day, but still does not generate errors while Seti crunching.
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Thank you, I have now 2x1GB Corsair XMS2 800MHz CL4 in dual channel and it's crung very well ;D
As CPU cooler I'm using Thermalright Ultra 120 with Noctua 1200rpm fan. I have in PC Probe II about 43°C in full load and Core Temp tells me that cores have about 60-67°C thats ok I thing (Tjunction is 100°C).
With case you are right I must do something with airflow. Now I have 1200rpm intake and 800rpm outtake fan. And it's not enought I think.
Fast,faster,the fastest crunching... (by Intel) ;D
P.S. How fast you are going with QX6700? And with how high Vcore? I tried 3.2GHz @ 1.4V (QX6700 B3 revision ES)
Thanks
Right now I am running at 3408mhz, 426 x 8, ram is at 532.5mhz/1065ddr speed, 5-5-5-10 timings. Asus Probe shows 57c at full load, vcore is 1.42v in Probe, bios is actually set to 1.525. Mobo is an Asus Commando.
Nice! ;D :o
I'm running at stock speed on the same board and the highest speed which I reached was 3500MHz 350x10, ram was at 450/900 ddr speed, 4-4-4-12 timings vcore 1.45 was set in BIOS. It has problems after few hours of ORHTOS Prime test.
I will try add some volts ;)
But I have worries about cooling I'm using Thermalright Ultra 120 with 1200rpm Noctua fan.
Your CPU must produce much more than 130W on stock ;D. What cooler do you use?
I love this machine, it's performance is incredible.
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Asus Probes reads 56-57c, Coretemp reads 80-82c. I believe the difference (anybody correct me if I am wrong) is that Probe's reading comes from a thermal diode in the cpu package the same as the bois hardware monitor does, and Coretemp is reading the DTS information directly from the cpu. My understanding is that tthe DTS information is actuallly a more accurate reading of the actual cpu die temperature.
As far as the AS5 goes, I have lapped both my cpu and the bottom of the TTBT cooler that I use (I did not see much difference between lapped and non-lapped temps, but was making other changes at the same time, so did not have a direct A-B comparison). I usuallly apply the AS5 to the surface of the cpu and then spread it out by using the edge of a credit card (a razor blade works well also) back and forth until I have a very thin, smooth coating of AS5 across the entire face of the cpu I then mount the heatsink and remove it to check if I have the paste transferred evenly from the cpu to the heatsink, ensuring that the mounting is even and I have enough paste to join both surfaces. You want to use as little paste as possible while still assuring full contact between the cpu and heatsink. When this looks right, I than use the credit card again to carefully smooth the compound out on both the cpu and heatsink, and do the final mount.
Hello!
In the manuel of the compound they say:
Page 2, # 3, Break-In Period...
http://www.arcticsilver.com/pdf/appinstruct/as5/ins_as5_intel_dual_wcap.pdf
So I must use the PC... maybe 16 hours and then over night 8 hours switch off. This procedure for around 8 days?
How you had done it?
You saw maybe after the first days that the temp fall a few more °C?
Friendly greetings!
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Thank you, I have now 2x1GB Corsair XMS2 800MHz CL4 in dual channel and it's crung very well ;D
As CPU cooler I'm using Thermalright Ultra 120 with Noctua 1200rpm fan. I have in PC Probe II about 43°C in full load and Core Temp tells me that cores have about 60-67°C thats ok I thing (Tjunction is 100°C).
With case you are right I must do something with airflow. Now I have 1200rpm intake and 800rpm outtake fan. And it's not enought I think.
Fast,faster,the fastest crunching... (by Intel) ;D
P.S. How fast you are going with QX6700? And with how high Vcore? I tried 3.2GHz @ 1.4V (QX6700 B3 revision ES)
Thanks
Right now I am running at 3408mhz, 426 x 8, ram is at 532.5mhz/1065ddr speed, 5-5-5-10 timings. Asus Probe shows 57c at full load, vcore is 1.42v in Probe, bios is actually set to 1.525. Mobo is an Asus Commando.
Nice! ;D :o
I'm running at stock speed on the same board and the highest speed which I reached was 3500MHz 350x10, ram was at 450/900 ddr speed, 4-4-4-12 timings vcore 1.45 was set in BIOS. It has problems after few hours of ORHTOS Prime test.
I will try add some volts ;)
But I have worries about cooling I'm using Thermalright Ultra 120 with 1200rpm Noctua fan.
Your CPU must produce much more than 130W on stock ;D. What cooler do you use?
I love this machine, it's performance is incredible.
Thank You for the compliment.
As for the power dissipation..............
Much more than 130w. I have done some calculations for the dude that is working on a custom phase change cooler for me, and I think that the quad OC'd to the range of 3800mhz on 1.55 vcore or so was generating some 250-280 watts of heat. It's no wonder that my fiirst attempt at phase cooling faiiled. the Vapo LS simply cannot handle it.
Anyway........I use the Thermaltake Big Typhoon for air cooling. It has gotten me very good results. Other OC'ers have their favorties, of course. I upgrade the fan to a Silverstone FM121 or FM122, gives another 1-2 degrees of cooling (not much, so TT must have the stock configuration dialed in pretty good.
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I deployed the SSE3 optimised client on my Qx6700 yesterday and it makes a big difference to my setup. I am crunching a large workunit (62 credits) in 4000 secs and because there 4 going at once this sure is a good way to munch those units.
My moderatley overclocked Quad core specs is as follows :-
Qx6700 on Asus P5D Deluxe FSB (290x11) 3190Mhz
Corsair XMS2 PC6200C4 at 5-5-5-18 at 966Mhz
BTW I have deployed 4 of the optimised code versions across 5 active machines and they have all experienced a large step in performance. :o
Sir Nutsalot of KWSN. ;D
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I have a small question for Jezak
What voltage are you using with your memory to acheive the high 1065 speed that you are getting at the relaxed latencys you are using. I have the same memory and the commando motherboard and the P5b deluxe are quite similar although I understand the commando allows greater flexibility to increase the voltages much higher when pushing things further
Nutz
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I have a small question for Jezak
What voltage are you using with your memory to acheive the high 1065 speed that you are getting at the relaxed latencys you are using. I have the same memory and the commando motherboard and the P5b deluxe are quite similar although I understand the commando allows greater flexibility to increase the voltages much higher when pushing things further
Nutz
I think you may be confusing some posts.....
If I sorted through the thread correctly, Jezak last reported 900mhz at 4-4-4-12 timings, I had reported 1065mhz at 5-5-5-10 timings. I am running Corsair Dominatior PC9136 at 2.2v on a Commando.
Of course, pardon me if I am wrong.
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Hello.
Im Running the 2.2B App and i make around ~55 to 65 Credit per Hour (depends on WU, but i crunch what i get)
All Cores currently running at 3.6 Ghz, enter 3.8 or 3.9 this we (not yet because i've only a single radi installed and my triple will arrive end this week since then i have to run at 3.6 to prevent
hell-of-overheating) Heat is the mayour prob with those fine devices. but they run fine, even at 90° core. (but i dont want higher than 70° so i clocked back)
Superpi 1M is done in 13,531 seconds at 3,8 Ghz (well dont know if its cool or not but lotsa people posts those numbers around so i think its necessary anyway)
My ram sucks. Really sucks. ???
greetings
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I deployed the SSE3 optimised client on my Qx6700 yesterday and it makes a big difference to my setup. I am crunching a large workunit (62 credits) in 4000 secs and because there 4 going at once this sure is a good way to munch those units.
My moderatley overclocked Quad core specs is as follows :-
Qx6700 on Asus P5D Deluxe FSB (290x11) 3190Mhz
Corsair XMS2 PC6200C4 at 5-5-5-18 at 966Mhz
BTW I have deployed 4 of the optimised code versions across 5 active machines and they have all experienced a large step in performance. :o
Sir Nutsalot of KWSN. ;D
Msattler was right... you have to mismasched some posts.
My RAM (Stock CL4 @ 800MHz) are now running 960MHz with 5-5-5-15 and 2.2V
My opinion about this RAM is that only revision 1.1 vwith Micron chips can run 1065MHz but with lots of voltage and CL5 timing only...
I have revision 2.1 which haven't got Micron chips.
My QX6700 is on 3200MHz (320x10) with some additional volts (BOIS vcore 1.45V). It runs pretty nice more than 2 weeks. And I am just little step behind the Batman ;D (in top comps).
But msattler is far far away...
Fast,faster,the fastest crunching...
P.S for msatter: How fast you are going? (If you can say it and of course if you want to)
Your RAC is pretty high and I think untouchable for me...
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P.S for msatter: How fast you are going? (If you can say it and of course if you want to)
Your RAC is pretty high and I think untouchable for me...
Not unreachable. anyone who breaks the 60 Credits/Hour will pass that actual rac.
i think a stable rac of >6000 is possible with a intel-quad-core system. Depends upon quality of cpu
example:
NI-Stats-Credit Per CPU Hour: 60.2856 (my computer) that is at 3,6 Ghz speed only average 92% running a day. gives a already (theoretical) rac of 5760
so theres nothing really impossible at all.
dont underestimate the power of quadcores :-)
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P.S for msatter: How fast you are going? (If you can say it and of course if you want to)
Your RAC is pretty high and I think untouchable for me...
Not unreachable. anyone who breaks the 60 Credits/Hour will pass that actual rac.
i think a stable rac of >6000 is possible with a intel-quad-core system. Depends upon quality of cpu
example:
NI-Stats-Credit Per CPU Hour: 60.2856 (my computer) that is at 3,6 Ghz speed only average 92% running a day. gives a already (theoretical) rac of 5760
so theres nothing really impossible at all.
dont underestimate the power of quadcores :-)
Welll..... The kitties have been busy. I am currently trying to blast my RAM bandwidth up a bit. My quad is maxed at 3.4mhz on air, that's all it's gonna do. So I have been playing with RAM. A OCd quad is a memory hungry beast. Just got some PC8800 OCZ , and have it runniing at 1278mhz, 5-5-5-18-42 timings, 1.45vdimm. I don't think it's gonna hang in there, but it's fun to watch it run while it does.
It crashed while I was gone this evening, so I bumped the vdimm from 1.4 t9 1.45. See if it holds.
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P.S for msatter: How fast you are going? (If you can say it and of course if you want to)
Your RAC is pretty high and I think untouchable for me...
Not unreachable. anyone who breaks the 60 Credits/Hour will pass that actual rac.
i think a stable rac of >6000 is possible with a intel-quad-core system. Depends upon quality of cpu
example:
NI-Stats-Credit Per CPU Hour: 60.2856 (my computer) that is at 3,6 Ghz speed only average 92% running a day. gives a already (theoretical) rac of 5760
so theres nothing really impossible at all.
dont underestimate the power of quadcores :-)
Welll..... The kitties have been busy. I am currently trying to blast my RAM bandwidth up a bit. My quad is maxed at 3.4mhz on air, that's all it's gonna do. So I have been playing with RAM. A OCd quad is a memory hungry beast. Just got some PC8800 OCZ , and have it runniing at 1278mhz, 5-5-5-18-42 timings, 1.45vdimm. I don't think it's gonna hang in there, but it's fun to watch it run while it does.
It crashed while I was gone this evening, so I bumped the vdimm from 1.4 t9 1.45. See if it holds.
Well. crunch on, ill try to catch up.
This oughta be fun. the more people those quadcores buy the less amd is in the list. i think amd shall press out some real good thing against this immense prozessor.... i like my quaddy. had to switch back to 3,55 Ghz heat sucks and my radi ISNT DELIVERED YET sucks. but anyway speeded up to:
Credit Per CPU Hour: 61.74
even at 3,5Ghz and hell-of-killer-wu's
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@Sirad: "Radi" do you mean watercooling radiator? If so, drop by Autozone and by a new heater core for an old pickup. They cost $20 and do a better job than the expensive water cooling radiators found online.
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@Sirad: "Radi" do you mean watercooling radiator? If so, drop by Autozone and by a new heater core for an old pickup. They cost $20 and do a better job than the expensive water cooling radiators found online.
I got e really cool stainless steel radiator including 3 fans and external Power supply at a real cheap deal from ebay.... looks good, works good and is that silent i had to put an additional controllight on it to KNOW if its working :-)))
Currently im testing stability at 3,7 Ghz. 2 Hours errorfree Prime and continuing.....