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MilkyWay@Home project support thread - Page 4

post #31 of 221
I have been using those drivers with my 7970, and I do not get artifacts or unusually high temps with Milkyway.

Milkyway does run a few degrees hotter than any other project, but my temps stay below 63 degrees. My reference 7970 is running at 1125/1550 with the fan at 50%.
post #32 of 221
Any tricks for getting more PPD in milkyway? Any line edits or anything? Also, is there any difference running in crossfire mode or not when boinc'ing?
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post #33 of 221
How about running multple tasks at once? I know you can get great gains in POEM and other projects but how about milkyway? it seems to use 99% GPU so im not sure if any gains can be had. Anyone know?
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post #34 of 221
Quote:
Originally Posted by Finrond View Post

How about running multple tasks at once? I know you can get great gains in POEM and other projects but how about milkyway? it seems to use 99% GPU so im not sure if any gains can be had. Anyone know?
most i've seen is running 2 at once, so the gpu is loaded at all times.
    
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post #35 of 221
I run 5 milkyway work units on a 7950 , takes 6 minuets per one and gpu never drops below 99 %.

With 1000/1350 MHz and 55% fan temps around 69 - 70 C
    
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post #36 of 221
Quote:
Originally Posted by TwirlyWhirly555 View Post

I run 5 milkyway work units on a 7950 , takes 6 minuets per one and gpu never drops below 99 %.

With 1000/1350 MHz and 55% fan temps around 69 - 70 C

Is it necessary to run 5? I run one at a time on my 6950 and my WU times are liek 1m 16s, which would be ~6m 20s for 5 WU's. I would have thought the 7950 to be MUCH more productive.

EDIT: looks like you get more credit / wu than I do though.

SUBEDIT: Looks like thats on the new WU's, the old ones are the lower pointers and faster run times.
Edited by Finrond - 2/13/13 at 11:04am
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post #37 of 221
Howdy. n00b here.

I had been running F@H but when I read that MW@H is kinder to AMD hardware, I decided to switch over. I'm running the AMD 13.3 Beta 3 driver, and the standard BOINC-issued client. Is there anything else I can do to optimize? I know the 7660D is old tech, but the times I'm getting with the 1 task it runs at a time are right about 30 mins, which seems really bad compared to newer GPUs.

Any suggestions?
post #38 of 221
Thread Starter 
Quote:
Originally Posted by Centauri View Post

Howdy. n00b here.

I had been running F@H but when I read that MW@H is kinder to AMD hardware, I decided to switch over. I'm running the AMD 13.3 Beta 3 driver, and the standard BOINC-issued client. Is there anything else I can do to optimize? I know the 7660D is old tech, but the times I'm getting with the 1 task it runs at a time are right about 30 mins, which seems really bad compared to newer GPUs.

Any suggestions?

Hi there!

The Milkyway@Home GPU application requires graphics cards that support double precision floating point computation. The Radeon HD 7660D (any of the APU graphics for that matter) does not support that and hence, wouldn't run the GPU applications. The times that you are seeing are for the standard CPU applications (the single core or multicore ones).

A full list of all graphics cards that support double precision can be found here: http://milkyway.cs.rpi.edu/milkyway/forum_thread.php?id=2457

If you're still looking for a project to use the GPU on, consider one of these:
Albert@Home
Collatz Conjecture
Donate@Home
Einstein@Home
Moo! Wrapper
POEM@Home
PrimeGrid

Since the 7660D is a slower GPU than most dedicated cards, I recommend running the Collatz Conjecture's mini_collatz GPU work units.
Edited by gamer11200 - 3/23/13 at 7:41pm
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post #39 of 221
Hi. Thanks.

Hmmmm. Well, I see one task per CPU core (4x 'N-Body Simulation 1.08's) and one task which is '1.02 opencl_amd_ati', and the completion times for the OpenCL tasks are much, much lower than the N-Body tasks?
Edited by Centauri - 3/23/13 at 7:50pm
post #40 of 221
Thread Starter 
Quote:
Originally Posted by Centauri View Post

Hi. Thanks.

Hmmmm. Well, I see one task per CPU core (4x 'N-Body Simulation 1.08's) and one task which is '1.02 opencl_amd_ati', and the completion times for the OpenCL tasks are much, much lower than the N-Body tasks?

My apologies, I misread the 30 minutes referring to the GPU application.

I was just going by the Wikipedia article about the 7xxxD GPUs (http://en.wikipedia.org/wiki/Radeon_HD_7000_Series#IGP_.28HD_7xxxD.29), it may be wrong when it said that those models don't support double precision. That, or there are GPU applications that can be used on non-double precision.

According to our member-updated database of runtimes, an HD 4850 takes about 4 minutes to complete. That's the slowest card that has been entered into the database for milkyway@home GPU.

Seems that the 7660D is between Nvidia GT 640 and AMD Radeon HD 5570 in performance. I'm just doing to estimate that the 5570 is about 1/3 of the performance of a 4850. Even then, 12 minutes is much faster than what you are getting.

I know that those APU graphics are dependent on RAM speed. What speed is your RAM running at? (It might not make a big difference, but worth to look at)

Can anyone else who has an A10-5800K, run a GPU work unit or two to compare the times?
Edited by gamer11200 - 3/23/13 at 8:26pm
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