18,000 S@h-RAC - which GPU?

Message boards : Number crunching : 18,000 S@h-RAC - which GPU?

Author	Message
[seti.international] Philip J. Fry Volunteer tester Send message Joined: 6 Apr 07 Posts: 6633 Credit: 51,265,348 RAC: 17,549	Message 1319529 - Posted: 24 Dec 2012, 5:17:11 UTC Last modified: 24 Dec 2012, 5:32:18 UTC
	My old GTX260 O/C have a ~ 18,000 S@h-RAC. Which NVIDIA GTX6xx and AMD/ATI HD7xxx would reach the same S@h-RAC (only with S@h Enhanced WUs)? (With WinXP 32bit. Other OS (Win7, 8) would give a speed up?) Thanks. * Best regards! :-) * Sutaru Tsureku, team seti.international founder. * Optimize your PC for higher RAC. * SETI@home needs your help. * ____________ >Das Deutsche Cafe. The German Cafe.<
	ID: 1319529 ·

rob smith Volunteer moderator Send message Joined: 7 Mar 03 Posts: 5572 Credit: 22,636,389 RAC: 41,573	Message 1319575 - Posted: 24 Dec 2012, 8:47:35 UTC
	A GTX660, or GTX670 should give you something like 18,000 without overclocking. Moving to a 64bit OS can have variable results - don't do it unless there are other reasons for doing the move, such as having to run applications that will only run on Windows7/64 bit. ____________ Bob Smith Member of Seti PIPPS (Pluto is a Planet Protest Society) Somewhere in the (un)known Universe?
	ID: 1319575 ·

Bart Send message Joined: 6 Jun 11 Posts: 2 Credit: 9,254,787 RAC: 14,016	Message 1319671 - Posted: 24 Dec 2012, 18:04:12 UTC
	I'm running a GTX660. RAC is still climbing but it looks like it will settle around 28,000 to 30,0000. Using the x41xc Cuda 5.0 app at http://jgopt.org/download.html ____________
	ID: 1319671 ·

WinterKnight Volunteer tester Send message Joined: 18 May 99 Posts: 6986 Credit: 17,558,284 RAC: 16,132	Message 1319717 - Posted: 24 Dec 2012, 21:15:01 UTC Last modified: 24 Dec 2012, 21:15:25 UTC
	As an indicator, a GTX670 has RAC, still rising after outage, of >20,300, at this moment in time. OS, win7 64bit.
	ID: 1319717 ·

tbret Send message Joined: 28 May 99 Posts: 1914 Credit: 127,649,892 RAC: 88,433	Message 1319752 - Posted: 25 Dec 2012, 0:22:27 UTC - in response to Message 1319529.
	My old GTX260 O/C have a ~ 18,000 S@h-RAC. Which NVIDIA GTX6xx and AMD/ATI HD7xxx would reach the same S@h-RAC (only with S@h Enhanced WUs)? (With WinXP 32bit. Other OS (Win7, 8) would give a speed up?) Thanks. My 660Tis are doing a little more than that (I can't tell for sure, but something in the low 20s is my best guess), so I'm guessing that a GTX 660 (no Ti) would give you approximately 20k RAC +/- 10%, running x41zc. In my personal opinion, you would not want to go less than a GTX 660, anyway. ____________
	ID: 1319752 ·

clive G1FYE Volunteer moderator Send message Joined: 4 Nov 04 Posts: 1284 Credit: 15,231,746 RAC: 17,525	Message 1319787 - Posted: 25 Dec 2012, 3:21:31 UTC Last modified: 25 Dec 2012, 3:28:29 UTC
	My 7970`s seem to be able to crunch over 20k rac if work supply is constant, They are not over clocked, yet. i still run out often because of limits and end up dooing E@H, The main cruncher is @ #18 atm. win7 64, luatics v0.40, ccc12.4,
	ID: 1319787 ·

RWZeitgeist Send message Joined: 20 Feb 07 Posts: 10 Credit: 23,991,351 RAC: 30,258	Message 1319877 - Posted: 25 Dec 2012, 14:58:52 UTC
	My 6 core AMD computer with a Gigabyte GTX 670 (http://setiathome.berkeley.edu/show_host_detail.php?hostid=6721035) currently shows a RAC of nearly 27,000. Neither the processor nor the video card are overclocked. The 2GB GTX card runs three simultaneous SETI tasks. While the 6 AMD cores do run SETI tasks, the video card dominates the RAC score.
	ID: 1319877 ·

jravin Send message Joined: 25 Mar 02 Posts: 744 Credit: 62,464,782 RAC: 46,904	Message 1319985 - Posted: 25 Dec 2012, 23:00:10 UTC - in response to Message 1319877.
	My 6 core AMD computer with a Gigabyte GTX 670 (http://setiathome.berkeley.edu/show_host_detail.php?hostid=6721035) currently shows a RAC of nearly 27,000. Neither the processor nor the video card are overclocked. The 2GB GTX card runs three simultaneous SETI tasks. While the 6 AMD cores do run SETI tasks, the video card dominates the RAC score. I would suggest you reserve at least 1 core of your 6 for GPU. My 6-core has 2 x GTX 460 running 2 WUs each and I reserve 2 cores for GPU. I find that when I go to even 5 cores for CPU processing, the (CPU time/elapsed time) for CPU WUs drops considerably (I'm getting a RAC of about 31K now on this machine), and I get less work done overall. ____________
	ID: 1319985 ·

WinterKnight Volunteer tester Send message Joined: 18 May 99 Posts: 6986 Credit: 17,558,284 RAC: 16,132	Message 1320019 - Posted: 26 Dec 2012, 1:36:35 UTC - in response to Message 1319985.
	My 6 core AMD computer with a Gigabyte GTX 670 (http://setiathome.berkeley.edu/show_host_detail.php?hostid=6721035) currently shows a RAC of nearly 27,000. Neither the processor nor the video card are overclocked. The 2GB GTX card runs three simultaneous SETI tasks. While the 6 AMD cores do run SETI tasks, the video card dominates the RAC score. I would suggest you reserve at least 1 core of your 6 for GPU. My 6-core has 2 x GTX 460 running 2 WUs each and I reserve 2 cores for GPU. I find that when I go to even 5 cores for CPU processing, the (CPU time/elapsed time) for CPU WUs drops considerably (I'm getting a RAC of about 31K now on this machine), and I get less work done overall. I agree, looking at the CPU loading on my quad with 3 CPU tasks running the total CPU loading is regularly over 90% signifying that feeding the GPU with two tasks and doing all the other background work uses ~60% of one CPU. As this is my main computer I found doing 3 GPU tasks, which would be the option if it was a dedicated cruncher, made it unresponsive.
	ID: 1320019 ·

petri33 Volunteer tester Send message Joined: 6 Jun 02 Posts: 58 Credit: 26,706,448 RAC: 44,258	Message 1320080 - Posted: 26 Dec 2012, 7:59:07 UTC - in response to Message 1319529. Last modified: 26 Dec 2012, 8:05:34 UTC
	Hi, You may want to take look at this: http://setiathome.berkeley.edu/show_host_detail.php?hostid=5643864 It runs Lunatics versions (AVX, V8, GPU) of both classic and astropulse. Current RAC after the outage is little over 41000. The CPU is an overclocked i7-3930K and has HT enabled, but Boinc is restricted to 50% of processors (6 out of 12). The single Gf560Ti448 is running 3 tasks simultaneously. -- Petri ____________
	ID: 1320080 ·

VBobier Send message Joined: 30 Nov 03 Posts: 41271 Credit: 32,367,177 RAC: 5,755	Message 1320215 - Posted: 26 Dec 2012, 22:49:36 UTC - in response to Message 1320080.
	Hi, You may want to take look at this: http://setiathome.berkeley.edu/show_host_detail.php?hostid=5643864 It runs Lunatics versions (AVX, V8, GPU) of both classic and astropulse. Current RAC after the outage is little over 41000. The CPU is an overclocked i7-3930K and has HT enabled, but Boinc is restricted to 50% of processors (6 out of 12). The single Gf560Ti448 is running 3 tasks simultaneously. -- Petri And 24/7 too I'd imagine, not bad. ____________ BSG Anthem My Facebook page
	ID: 1320215 ·

petri33 Volunteer tester Send message Joined: 6 Jun 02 Posts: 58 Credit: 26,706,448 RAC: 44,258	Message 1320538 - Posted: 27 Dec 2012, 21:04:40 UTC - in response to Message 1320215.
	24/7 yes, How do you heat your house - oil? -- No, computers... ____________
	ID: 1320538 ·

VBobier Send message Joined: 30 Nov 03 Posts: 41271 Credit: 32,367,177 RAC: 5,755	Message 1320547 - Posted: 27 Dec 2012, 21:25:16 UTC - in response to Message 1320538. Last modified: 27 Dec 2012, 21:27:35 UTC
	24/7 yes, How do you heat your house - oil? -- No, computers... Natural Gas and the GTX590 equipped PC here... ____________ BSG Anthem My Facebook page
	ID: 1320547 ·

dancer42 Volunteer tester Send message Joined: 2 Jun 02 Posts: 340 Credit: 1,073,388 RAC: 1,165	Message 1320583 - Posted: 28 Dec 2012, 0:02:53 UTC Last modified: 28 Dec 2012, 0:09:13 UTC
	as for Oklahoma in the US the computers so far, About 65 to 70 degrees. though I had hoped the recent snow would have allowed a second cruncher. hoping for about 120,000 RAC now that I can get AP. ____________
	ID: 1320583 ·

Message boards : Number crunching : 18,000 S@h-RAC - which GPU?