Personal computing discussed
Moderators: renee, farmpuma, just brew it!
ChronoReverse wrote:Testing stock A64 X2 3800+ along with a stock HD3400 and getting 266PPD. Fully eats up one CPU core and the GPU utilization reads 99% as well.
I wonder what would be the quickest way to run it on my Q6600 and 3850. Perhaps 1 core for the GPU client and three cores for SMP client?
Vijay Pande wrote:There have been some misunderstandings on how the GPU2 core works. In particular, for small proteins like villin on GPU's with large number of stream processors (SP's) like the 3850 or 3870, the protein is too small to use a larger number of SP's unless the CPU is very fast. Some people have guessed that there is some internal SP limit. This is incorrect; the problem is that small proteins can't be parallelized amongst a large number of SP's.
We are working to release larger proteins (about 2x the number of atoms) as they are more interesting scientifically and use the GPU's (even the high end ones) much closer to 100%. The exciting part for us is that the larger proteins run at almost the same speed as the slower ones on GPU's (whereas on CPU's, they're 4x slower); this is where the GPU2 code should shine. In parallel, Mike Houston at AMD is working to optimize CAL such that it has lower CPU overhead.
For now, we're pushing out villin WU's as a test (good to know that the code is working well), but we expect the larger WU's to be going out soon (say a week or two, pending internal testing).
ChronoReverse wrote:Just started it up on my 3850 and I'm getting ~1600PPD. 92% utilization with a 3GHz Q6600. In the interest of beta testing and science I'll let this run =)
ChronoReverse wrote:Haha, I'm using my own name but I've put myself under 2630 =)
ChronoReverse wrote:It's single threaded so it's really just using one core (Windows scheduling just happens to make it appear to be spread across the cores).
I've settled for running the Windows SMP client on three cores for about ~1700PPD and the GPU2 client on the remaining core for 1650PPD. This might not be the fastest setup for my Q6600 but I want to run the GPU2 client for beta testing purposes.
Haggis! wrote:One the machine at home, I've overclocked the 3870 to 832 core, 1141 memory and FahMon is showing 1600 ppd on the GPU. Like the P4D, on the E3110 the GPU activity bops around between 40% and 80%, and the core speed on the GPU bounces back and forth, but between ~700MHz. and 832MHz.
ChronoReverse wrote:Well, I'm getting ~85% utilization now with Project 4701. Mind you, my 3850 is running 669MHz and the single Q6600 core I allocated for it is at 3GHz. Project 2799 under the same conditions gets about 93% utilization.
I bet when bigger WU's are available, we'll easily see 99% utilization.
david00214 wrote:ChronoReverse wrote:Well, I'm getting ~85% utilization now with Project 4701. Mind you, my 3850 is running 669MHz and the single Q6600 core I allocated for it is at 3GHz. Project 2799 under the same conditions gets about 93% utilization.
I bet when bigger WU's are available, we'll easily see 99% utilization.
Are you worried 99% util will kill your videocard? Any info on how safe it is to run a card at that util 24/7?
david00214 wrote:
Are you worried 99% util will kill your videocard? Any info on how safe it is to run a card at that util 24/7?
Haggis! wrote:No. GPU2 runs on 2000 and 3000 series cards.
themattman wrote:Quick question. If I paired up an E2180 with a 3650, would I be limited by the CPU? Both those would cost around $140 total. Would it better to spend the $140 on a better processor and forget the ATI graphics card? I want to get the most points possible with light overclocking of the CPU and graphics card.
themattman wrote:Quick question. If I paired up an E2180 with a 3650, would I be limited by the CPU? Both those would cost around $140 total. Would it better to spend the $140 on a better processor and forget the ATI graphics card? I want to get the most points possible with light overclocking of the CPU and graphics card.
Looking for Knowledge wrote:When drunk.....
I want to have sex, but find I am more likely to be shot down than when I am sober.
[01:33:05] CoreStatus = FFFFFFFF (-1)
[01:33:05] Client-core communications error: ERROR 0xffffffff