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Number crunching :
RAC with 2 gtx295
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Jon Send message Joined: 12 Aug 09 Posts: 157 Credit: 139,063,241 RAC: 0 ![]() |
I built this computer for crunching http://setiathome.berkeley.edu/show_host_detail.php?hostid=5168831 I have oc the cards a little. The temps stay in the 85C-90C range. The cpu is an i7 with air cooling. Is ~13k rac good or can it be better? |
![]() ![]() Send message Joined: 4 Oct 00 Posts: 9541 Credit: 50,759,529 RAC: 60 ![]() ![]() |
that seems a little low. the CPU alone should get you around 6-8k rac if you are using, and you should, hyperthreading. I'd think you should be around 20k or more ![]() In a rich man's house there is no place to spit but his face. Diogenes Of Sinope |
![]() ![]() Send message Joined: 30 Aug 01 Posts: 1228 Credit: 47,779,411 RAC: 32 ![]() ![]() |
I'd say it's too low. I run a Q9450 @ 3.2 w/2 stock speed GTX 260s, it hovers around 29,000 RAC. It looks like you're not using the optimized applications, so maybe it is about right for stock applications, but I'd think not. Since I don't use stock applications, I don't really know what you should expect from them, though. I would guess one of your problems may be that you process VLAR WUs on your GPUs, that would definitely slow things down a lot. Since you don't use the optimized applications, I assume you also don't use the re-scheduler tool. -Dave ![]() |
![]() ![]() Send message Joined: 23 May 99 Posts: 4292 Credit: 72,971,319 RAC: 0 ![]() |
I built this computer for crunching http://setiathome.berkeley.edu/show_host_detail.php?hostid=5168831 I have oc the cards a little. The temps stay in the 85C-90C range. The cpu is an i7 with air cooling. Is ~13k rac good or can it be better? My i7 with just a GTX 260 and GTX 275 gets 30,000 RAC With overclock. You should be up in the 20's I would think. Official Abuser of Boinc Buttons... And no good credit hound! ![]() |
![]() Send message Joined: 6 Apr 07 Posts: 7105 Credit: 147,663,825 RAC: 5 ![]() |
Jon, have also a small look to the top_host_list. There are similar PCs like you have. You have the 1x or the 2x PCB GTX295 ? If the old (2x PCB) you must take care and control the temps. They go very hot and after a short time you could have a damaged GPU chip or RAM. I read about, the people with this old GPU let run their GPU fans at 100 % for to cool down to a well temp. My 5x OCed GTX260-216 reached ~ 85 °C in summer. All GPUs the fan with AUTO mode. I would install optimized project applications. Double performance! Also your GPUs wouldn't calculate VLAR WUs which make your whole system sluggish. Have a small look in my profile. (& eFMer Priority!) After installation of opt. apps.. I guess.. 1x GTX295 -> 28,000 RAC So your whole system ~ 64,000 RAC after ~ one month continuously 24/7 running. In past I had a RAC of ~ 52,000 only GPUs. Then with the other (current) mix of AR WUs I reached ~ 58,000. Then after Fred published his nice prog (eFMer Priority) I crunch also on the CPU and have now a RAC of ~ 61,000 (couldn't test how high really, because of (un- &)planned server outages at SETI@home). AMD Phenom II X4 940 BE @ 3.0 GHz & 4x (manufacturer) OCed GTX260-216. ____________ [Optimized project applications, for to increase your PC performance (double RAC)!][Overview of abbreviations, which are used often in forum and their meaning.] ![]() |
![]() ![]() Send message Joined: 7 Oct 01 Posts: 385 Credit: 50,200,038 RAC: 0 ![]() |
Wow, when I read the RAC info here one would think a machine with GPU crunching would score much, much more credits per Watt, than a CPU cruncher? The SETI@Home Gauntlet 2012 april 16 - 30| info / chat | STATS |
Richard Haselgrove ![]() Send message Joined: 4 Jul 99 Posts: 14690 Credit: 200,643,578 RAC: 874 ![]() ![]() |
Wow, when I read the RAC info here one would think a machine with GPU crunching would score much, much more credits per Watt, than a CPU cruncher? Experimentally, I found that the credit/watt for my 9800GTX+ was similar to the credit/watt for the Q9300 in the host computer - as signal processing theory suggests that it should be. But conventionally, all the overhead wattage of the motherboard/HDD/cooling is assigned as a CPU on-cost, so the GPU comes up as the green choice. |
![]() Send message Joined: 6 Apr 07 Posts: 7105 Credit: 147,663,825 RAC: 5 ![]() |
Wow, when I read the RAC info here one would think a machine with GPU crunching would score much, much more credits per Watt, than a CPU cruncher? Sure, I know this since ~ one year. :-D After a short time (last February) I switched on my GPU cruncher (there only 2 GPUs, few months later additional 2). ;-) My AMD 940 BE maybe ~ 4,500 RAC. ~ 200 W. One of my 5x OCed GTX260-216 ~ 14,500 RAC. ~ 145 W. ____________ [Optimized project applications, for to increase your PC performance (double RAC)!][Overview of abbreviations, which are used often in forum and their meaning.] ![]() |
![]() ![]() Send message Joined: 7 Oct 01 Posts: 385 Credit: 50,200,038 RAC: 0 ![]() |
My AMD 940 BE maybe ~ 4,500 RAC. ~ 200 W. I have Q9550 that does a 4,300 at about 110W, but still no match for 14,500 with 145W! you mentione (only) 145 Watts, but I've Googled a bit and found that a GTX260/216 should take about 260 Watts by itself?! (my apologies if I'm getting OT to much) The SETI@Home Gauntlet 2012 april 16 - 30| info / chat | STATS |
![]() ![]() Send message Joined: 23 May 99 Posts: 4292 Credit: 72,971,319 RAC: 0 ![]() |
My AMD 940 BE maybe ~ 4,500 RAC. ~ 200 W. That seems a bit high to me. My whole computer measured with an amp probe on split power cord is 540 Watts from the wall. I have a GTX 260 and GTX 275 plus CPU, motherboard, memory...all overclocked. Official Abuser of Boinc Buttons... And no good credit hound! ![]() |
![]() ![]() Send message Joined: 7 Oct 01 Posts: 385 Credit: 50,200,038 RAC: 0 ![]() |
Ow wait, the Graph does say "system power"... hmm If I guess the parts of Hiamps.. 50 Watts system (MB, PSU, RAM, HDD etc) 100 Watts CPU 170 Watts GTX 260 220 Watts GTX 275 still a bit off with the numbers from Sutaru Tsureku (but getting more close ;) The SETI@Home Gauntlet 2012 april 16 - 30| info / chat | STATS |
![]() Send message Joined: 6 Apr 07 Posts: 7105 Credit: 147,663,825 RAC: 5 ![]() |
I have Q9550 that does a 4,300 at about 110W, but still no match for 14,500 with 145W! I didn't read the whole report (your URL) but it's written 'system power'. AFAIK, in this tests the whole system (CPU/mobo/GPU and so on..) is measured on the wall plug. I don't know how much the AMD Phenom II X4 940 BE take out of the wall plug alone. He have a TDP of 125 W. My QX6700 @ 2.67 GHz (stock) with 130 W TDP took ~ 190 W out of the wall plug in past. Yes I know, TDP isn't the real wattage, but a well value for to calculate, AFAIK. My GPU cruncher take ~ 700 W out of the wall plug if full load CPU & GPU. If I guess.. the AMD PC (incl. equipment) ~ 150 W. Then, 700 - 150 = 550 W / 4 GPUs = 137,5 W / GPU. The whole GPU cruncher idle (CPU without (not active Cool&Quiet), GPUs with power saving mode) .. IIRC ~ 250 W. My GPUs take ~ 3/4 of the max. wattage of a GTX260-216 if CUDA. The manufacturer say max. ~ 190 - 200 W. If you make benchmark or other stressful prog (gaming) which use the whole graphic card (core/shader/RAM) you will reach this ~ 200 W or little bit more. But if CUDA mostly the shader and RAM is used. So less wattage. ____________ [Optimized project applications, for to increase your PC performance (double RAC)!][Overview of abbreviations, which are used often in forum and their meaning.] ![]() |
![]() ![]() Send message Joined: 7 Oct 01 Posts: 385 Credit: 50,200,038 RAC: 0 ![]() |
Hmm, my main cruncher has a PSU of 300Watts, it takes a 110 Watts now, if I'dd install a GTX260 the PSU could take it, when I follow your calculations... hmmmm What would I get on extra RAC, an 8k? The SETI@Home Gauntlet 2012 april 16 - 30| info / chat | STATS |
![]() Send message Joined: 6 Apr 07 Posts: 7105 Credit: 147,663,825 RAC: 5 ![]() |
300 W is little bit too low. IIRC, you must have a PSU with 36 or 40 A for a GTX260-216. For to be sure, look at the manufacturer site. I would think a 300 W PSU don't have this. In your manual or on the PSU. In past I hear, max. 50 % usage of PSU for well life. Then the people say max. 85 %. If 85 % for your 300 W, then this are 255 W. If you would gaming, you reach the limit/max. of the PSU (300 W, or more). One of my 5 OCed GTX260-216 have ~ 14,500 RAC. Maybe you could look to the new GT240 (Fermi), max. ~ 75 W, so maybe 55 W with CUDA. This GPU should need a PSU with lower A. For to be sure, manufacturer site. IIRC, like the old 9600 GT / 9600 GSO.. I guess maybe 7,000 RAC. I looked through the forum search, but the people (I found two) which have a GT240 have their PCs hidden :-( , so not possible to look. Maybe look in the top_host_list and you will find one user with this GPU for to look the performance. ____________ [Optimized project applications, for to increase your PC performance (double RAC)!][Overview of abbreviations, which are used often in forum and their meaning.] ![]() |
![]() ![]() Send message Joined: 7 Oct 01 Posts: 385 Credit: 50,200,038 RAC: 0 ![]() |
I found two: hostid=5152755 hostid=4996721 This leaves me to estemate that it would double my RAC (to 9k) with an extra powerdraw of 55-75Watts That would increase my efficiency, but not with as much as I'dd hoped.. well, gives me something to think about ;) The SETI@Home Gauntlet 2012 april 16 - 30| info / chat | STATS |
![]() ![]() Send message Joined: 7 Jun 99 Posts: 512 Credit: 148,746,305 RAC: 0 ![]() |
I built this computer for crunching http://setiathome.berkeley.edu/show_host_detail.php?hostid=5168831 I have oc the cards a little. The temps stay in the 85C-90C range. The cpu is an i7 with air cooling. Is ~13k rac good or can it be better? 47000 would be more like it.http://setiathome.berkeley.edu/show_host_detail.php?hostid=4955000 But not leveled out yet. 24/7 that is of course and it will take a while (> month) to get to that point. But I can't get this to work on Win 7 the drivers still are not as good as on XP 64. Get a lot of driver crashes etc. not quit stable enough. TThrottle Control your temperatures. BoincTasks The best way to view BOINC. Anza Borrego Desert hiking. |
![]() Send message Joined: 6 Apr 07 Posts: 7105 Credit: 147,663,825 RAC: 5 ![]() |
I found two: Ahh.. the first is a GTS240, ..it's the new 9800 GT. Only available in prebuilt (OEM) systems http://www.nvidia.com/object/geforce_family.html The GT(without S ;-)240 is the new 9600 GT/GSO (96 shader) (max. ~ 69 W). Need no 6 pin power connector. Min. 300 W PSU: http://www.nvidia.com/object/product_geforce_gt_240_us.html The GTS240 have a few more shader (112) (max. ~ 120 W). Need a 6 pin power connector. Min. 450 W PSU: http://www.nvidia.com/object/product_geforce_gts_240_us.html I guess the GT240 is the max. for your PSU. For to be sure, follow the first URL, choose a product.. maybe the GT240, then a manufacturer - for example EVGA, GIGABYTE or ZOTAC - look at their site and then the max. wattage of their GPUs. It could be little bit more, maybe because of OC. Also possible different RAM, GDDR3 or GDDR5. GDDR5 should be faster. Also the core/shader/RAM speed could be different for the same GPU chip at different manufacturer. Also a manufacturer could have (for example) more GT240 models for to choose (also stock & OCed). ____________ [Optimized project applications, for to increase your PC performance (double RAC)!][Overview of abbreviations, which are used often in forum and their meaning.] ![]() |
![]() Send message Joined: 6 Apr 07 Posts: 7105 Credit: 147,663,825 RAC: 5 ![]() |
If I calculate with the GT240 (shader 1340).. but Linux.. AFAIK, little bit slower than Windows XP.. http://setiathome.berkeley.edu/result.php?resultid=1466693581 AR 0.39x - 2147 sec. - 119 Cr. Then ~ 199 Cr./hour -> ~ 4,776 RAC Hmm.. maybe with WinXP -> ~ 5,x00 RAC EDIT: Don't know if he have CUDA_V2.3 installed. ~ 30 % speed up compared with CUDA_V2.2 (Windows). ____________ [Optimized project applications, for to increase your PC performance (double RAC)!][Overview of abbreviations, which are used often in forum and their meaning.] ![]() |
Jon Send message Joined: 12 Aug 09 Posts: 157 Credit: 139,063,241 RAC: 0 ![]() |
Thank you for everyone's help. Followed Sutaru Tsureku suggestion and installed Lunatics_Win64v0.2_(SSE3+)_AP505r168_AKv8bx64_CudaV12. I hope this is the correct one. This computer has a 1000w psu. Using Kill-A-Watt, it is drawing ~600w for everything. |
![]() Send message Joined: 6 Apr 07 Posts: 7105 Credit: 147,663,825 RAC: 5 ![]() |
You're welcome! I don't know the correct name of the DL file, but if you DLed (followed the URL) Win64 Lunatics' Unified Installer v0.2 you're fine for Win7 64bit OS, because of the related machine. You have also installed CUDA_V2.3 ? ____________ [Optimized project applications, for to increase your PC performance (double RAC)!][Overview of abbreviations, which are used often in forum and their meaning.] ![]() |
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