BRP3 CUDA

Stef
Stef
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Just for the statistics: I

Just for the statistics:
I have two hosts with identical 8800 GTS 512 each. The BPR3 tasks are running on a dedicated CPU core each.

These are the average values from 30-50 WU's.

PC1: E7200, PCIe 1.1
Runtime: 5556s
CPU time: 1956s

PC2: E8500, PCIe 2.0
Runtime: 5023s
CPU time: 1796s

OK, I've expected the CPU time on the faster host would be lower.
But as the CPU has just a load of 17-20%, I also expectet that the runtime would be about the same, but in fact on the faster host it's 10% lower.

Might it be associated with the difference that one card is running on PCIe 2.0?
Or is the card just waiting for the CPU, so on PC2 it has less to wait (even though the CPU load is just 20% on both hosts)

I can't compare the GPU-load, it's too fluctuating.

Jeroen
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RE: RE: RE: Does

Quote:
Quote:
Quote:

Does Milkyway support linux/mac GPUs? It's real science, not a credit factory.

Milkyway has a Linux CUDA app. The ATI app is in the works for Linux but not available currently that I know of.

I should have specified that I run 32bit - I searched for a CUDA MW app but didn't find any. Everything I ran across said windows or 64bit linux. I don't have any need of a 64bit operating system yet and everything else is still easier to run in 32bit (maybe for another year or two). If anyone has a link to a 32bit app, I would be grateful!

Yes, I am not that keen on Collatz, but Primegrid has driver issues with Linux CUDA for me. Einstein is my priority but my GPU is sitting idle if no-one else writes Linux apps for it. If anyone has suggestions of 'real science' for Linux 32bit CUDA I am happy to listen...

I have not come across any other 32-bit CUDA enabled science projects for Linux. Seti, Milkyway, and GPU Grid have CUDA apps for Linux but those are 64-bit compiled.

mikey
mikey
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RE: RE: Yes, I am not

Quote:
Quote:
Yes, I am not that keen on Collatz, but Primegrid has driver issues with Linux CUDA for me. Einstein is my priority but my GPU is sitting idle if no-one else writes Linux apps for it. If anyone has suggestions of 'real science' for Linux 32bit CUDA I am happy to listen...

I have not come across any other 32-bit CUDA enabled science projects for Linux. Seti, Milkyway, and GPU Grid have CUDA apps for Linux but those are 64-bit compiled.

Dnetc has:
Linux running on an Intel x86-compatible CPU 1.02 (ati14) 23 Oct 2010
Linux running on an Intel x86-compatible CPU 1.02 (cuda23) 24 Oct 2010
Linux running on an Intel x86-compatible CPU 1.06 24 Oct 2010

As for 'real science' that is in the eyes of the cruncher. Here is a list of active Distributed Computing Projects with the Boinc ones noted:
http://www.distributedcomputing.info/projects.html

Unfortunately they do not list which ones can use a gpu or which OS each uses on that page, meaning alot of clicking will be needed to find what you are looking for.

I just saw this link in another thread:
http://boinc.berkeley.edu/wiki/GPU_computing

Ascholten
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Ok boinc just gave me a bunch

Ok boinc just gave me a bunch of einstein assignments today. A lot of them, heck all of them are BRP'. Now 6 of them are running on my processors, and its looking like 12 hours plus each, and 1 of them are on my gpu at about an hour. Do th BRP's run on both processors and GPU or did something tweak here?

If they can run on either, is there a way I can set up so that I only get them for the GPU and not give to the CPU?

Aaron

If god meant for us not to BOINC he'd have made our #$%^%^ shorter!!

Bikeman (Heinz-Bernd Eggenstein)
Bikeman (Heinz-...
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RE: Ok boinc just gave me a

Quote:

Ok boinc just gave me a bunch of einstein assignments today. A lot of them, heck all of them are BRP'. Now 6 of them are running on my processors, and its looking like 12 hours plus each, and 1 of them are on my gpu at about an hour. Do th BRP's run on both processors and GPU or did something tweak here?

If they can run on either, is there a way I can set up so that I only get them for the GPU and not give to the CPU?

Aaron

Hi!

Under Windows, there are both CPU and GPU apps for BRP workunits. There is no way to opt-out for just one of them in the web preferences currently.

CU
HB

Grutte Pier [Wa Oars]~MAB The Frisian
Grutte Pier [Wa...
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Go to E@H preferences > "Use

Go to E@H preferences > "Use cpu" > "NO" and "Use GPU" > "YES" works fine for me.

My system only crunches on E@H GPU WU's and CPU WU's for another project.

Bikeman (Heinz-Bernd Eggenstein)
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RE: Go to E@H preferences >

Quote:

Go to E@H preferences > "Use cpu" > "NO" and "Use GPU" > "YES" works fine for me.

My system only crunches on E@H GPU WU's and CPU WU's for another project.

OK, but that will disable the GW search (which is not available yet on GPU on any platform), and also ALL E@H tasks on any hosts that do not run under Windows or don't have a CUDA enabled gfx card! So if you have more than one PC you should be careful with this seeting because it applies to all your hosts.

CU
HB

Ascholten
Ascholten
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Thank you for the

Thank you for the replies.

I am running regular CPU tasks too on t his computer, it's my workhorse for crunching, I was just hoping i could tell it, NO BRP for cpu's but only for GPU and still use the cpu for other tasks.
Ill just let it run as is then. It just seems to me that the BRPs run soo much better on the gpu than the cpu that id rather use the cpu for other tasks that can't use a gpu.
Thank you for you time.

Aaron

If god meant for us not to BOINC he'd have made our #$%^%^ shorter!!

Grutte Pier [Wa Oars]~MAB The Frisian
Grutte Pier [Wa...
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RE: RE: Go to E@H

Quote:
Quote:

Go to E@H preferences > "Use cpu" > "NO" and "Use GPU" > "YES" works fine for me.

My system only crunches on E@H GPU WU's and CPU WU's for another project.

So if you have more than one PC you should be careful with this seeting because it applies to all your hosts.

CU
HB


Correct, have one system on E@H/GPU and LC/CPU and the other on PG/GPU and LC/CPU with both the same settings. CPU > No and GPU > Yes.

Claggy
Claggy
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RE: RE: Go to E@H

Quote:
Quote:

Go to E@H preferences > "Use cpu" > "NO" and "Use GPU" > "YES" works fine for me.

My system only crunches on E@H GPU WU's and CPU WU's for another project.

OK, but that will disable the GW search (which is not available yet on GPU on any platform), and also ALL E@H tasks on any hosts that do not run under Windows or don't have a CUDA enabled gfx card! So if you have more than one PC you should be careful with this seeting because it applies to all your hosts.

CU
HB


There are Four venues available, ie Default, Home, School and Work,

You can set different preferences at one the those venues, then just move that one computer to that venue, and then you have different computers with different preferences.
(Boinc 6.10.19 or later required for correct operation of venue preferences)

Claggy

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