Geforce GTS 240 is crunching, but only 50%

Message boards : Number crunching : Geforce GTS 240 is crunching, but only 50%

Author	Message
Jeroen Zijlstra Send message Joined: 28 Jan 00 Posts: 12 Credit: 823,959 RAC: 844	Message 1303057 - Posted: 7 Nov 2012, 11:38:18 UTC
	Dear Seties, Lunatic sofware is not available anymore to better the performans of my CPU and GPU. By calculations my video card works best with 4 WU at one time. I need alternatives, who can help me? ____________
	ID: 1303057 ·

rob smith Volunteer moderator Send message Joined: 7 Mar 03 Posts: 5458 Credit: 20,971,670 RAC: 132,019	Message 1303058 - Posted: 7 Nov 2012, 11:51:08 UTC
	I'm sorry to say this, but your GTS240 will only process 1 WU at a time. The ability to process multiple WU arrived with the 4xx series of GPU. I tried to run multiple WU on an old GTS250 and while it would work it was painfully slow. From memory each WU was taking four or five times longer when running two than when running one, and the card was very unstable. ____________ Bob Smith Member of Seti PIPPS (Pluto is a Planet Protest Society) Somewhere in the (un)known Universe?
	ID: 1303058 ·

Fred E. Volunteer tester Send message Joined: 22 Jul 99 Posts: 436 Credit: 13,018,667 RAC: 35,726	Message 1303072 - Posted: 7 Nov 2012, 12:52:52 UTC
	Agree with Rob. I tried 2 at a time with a GT240 with 1G VRAM and the optimised apps, and it was a hurt rather than a help. ____________ Another Fred Support SETI@home when you search the Web or shop online with GoodSearch and GoodShop
	ID: 1303072 ·

skildude Send message Joined: 4 Oct 00 Posts: 8943 Credit: 36,753,074 RAC: 61,397	Message 1303208 - Posted: 7 Nov 2012, 18:28:12 UTC
	there really is no need to post this in multiple forums on this site. I see you have 3 threads started on pretty much the same topic. ____________ Proud member of TSWB. End terrorism by building a school
	ID: 1303208 ·

Jeroen Zijlstra Send message Joined: 28 Jan 00 Posts: 12 Credit: 823,959 RAC: 844	Message 1303214 - Posted: 7 Nov 2012, 18:37:07 UTC - in response to Message 1303072.
	Thanks for your messages, Lunatics software has a calculating test program, that recoments multiple (4)WU on the GPU. Lunatics is no longer available for download/install. You know how i can use the other 50 to 70%? I have my eye on a GeForce GTX 570, but will it run 100% or just 5%. I need a tweak or test. If this card doesn't run 100% why will a 570? ____________
	ID: 1303214 ·

skildude Send message Joined: 4 Oct 00 Posts: 8943 Credit: 36,753,074 RAC: 61,397	Message 1303240 - Posted: 7 Nov 2012, 19:21:44 UTC - in response to Message 1303214.
	an Nvidia 570 should be able to handle 2-3 WU's Just an FYI, I have the top of the line ATI 7970 3GB GPU and I can only run 3 WU's at a time efficiently. Anymore and it just slows things down. BTW. The amount of RAM is only part of the equation when running WU's on GPU's and as stated before the 2XX series were never equipped to run more than 1 WU at a time ____________ Proud member of TSWB. End terrorism by building a school
	ID: 1303240 ·

Fred J. Verster Volunteer tester Send message Joined: 21 Apr 04 Posts: 3232 Credit: 31,585,541 RAC: 1	Message 1303253 - Posted: 7 Nov 2012, 19:51:07 UTC - in response to Message 1303214. Last modified: 7 Nov 2012, 20:00:03 UTC
	Thanks for your messages, Lunatics software has a calculating test program, that recoments multiple (4)WU on the GPU. Lunatics is no longer available for download/install. You know how i can use the other 50 to 70%? I have my eye on a GeForce GTX 570, but will it run 100% or just 5%. I need a tweak or test. If this card doesn't run 100% why will a 570? You're compairing apples and oranges, a 200 series NVidia has a completely different architecture compaired to a 400 or 500 series (FERMI) or 600 series(KEPPLER) GPUs. This test program gives a theoretical value, which is not adviseble to use in real-life with 200 series NVidia GPUs. A GTX570 is an excellent choice and will perform, with stock-app, closer to 100% (~80-85%) then 5%, even if running 1 instance_per_device! Installing the correct driver and ensuring enough 'output' from CPU to GPU(s). Sometimes it's adviseble to 'free - up' 1 core of the CPU to proper load and unload the GPU(s), IMHO. And ofcoarse your mobo and PSU should be able to 'handle it all'. ____________ Knight Who Says Ni N!, OUT numbered.................
	ID: 1303253 ·

Jeroen Zijlstra Send message Joined: 28 Jan 00 Posts: 12 Credit: 823,959 RAC: 844	Message 1303489 - Posted: 8 Nov 2012, 12:59:08 UTC - in response to Message 1303253.
	I will trade my,"Apple" for a "Orange". Or better. Thanks, Knight off NI I wil plant you a shrubbery. ____________
	ID: 1303489 ·

Message boards : Number crunching : Geforce GTS 240 is crunching, but only 50%