cant get it to use gpu.

danny
danny
Joined: 28 Jan 09
Posts: 6
Credit: 681
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Topic 194163

i tried uninstalling all nvidia gpu and cuda and einstine@home/BOINC files... reisntalled everything booted.
still running on cpu.
the client says
cuda device found
coprocessor:9800gtx/9800gtx+ (1)
no general perefences found - using BOINC defaults.

any help? i have overclock gpu it would score alot of points running 247

thanks!

AKA Warlord420

Michael Karlinsky
Michael Karlinsky
Joined: 22 Jan 05
Posts: 888
Credit: 22,866,339
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cant get it to use gpu.

As of now, E@H does not provide a GPU-application, only SETI and GPUGRID do.

Michael

JStateson
JStateson
Joined: 7 May 07
Posts: 139
Credit: 1,877,702,852
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RE: As of now, E@H does not

Message 90263 in response to message 90262

Quote:

As of now, E@H does not provide a GPU-application, only SETI and GPUGRID do.

Michael

Yea - they do not, but there is some misleading PR out about einstein using GPU technology. Einstein is mentioned here and also here and it appears at first glance that the CUDA stuff is available.

That link (above) supplied by nvidia does not lead to any Einstein GPU or CUDA info.

It would be nice if all these projects started using modern tech. Especially that climate predition project. If they got away from fortran and switched to the latest technology maybe their computations could speed up and they would discover we are in an ice age instead of global warming.

sorry for my rant

tullio
tullio
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In SETI I crunched a WU in

In SETI I crunched a WU in 10k s. Another wingman did it in 14k s. Neither of us used a graphic board and CUDA. A third wingman, using a quad processor and 4 graphic boards of the latest generation crunched it in 84 s. But his result was judged invalid and he got zero credits. So, if climateprediction.net started using GPUs maybe we would justly end up in an ice age.
Tullio

Gundolf Jahn
Gundolf Jahn
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RE: ...crunched it in 84

Message 90265 in response to message 90264

Quote:
...crunched it in 84 s...


He certainly didn't crunch it in 84 s. His CPU needed 84 s to feed the GPU with data. The time needed to crunch a job isn't recorded with SETI CUDA (AFAIK :-)

Gruß,
Gundolf

Computer sind nicht alles im Leben. (Kleiner Scherz)

Jord
Joined: 26 Jan 05
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Credit: 5,779,100
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BeemerBiker wrote:If they got

Message 90266 in response to message 90263

BeemerBiker wrote:
If they got away from fortran and switched to the latest technology maybe their computations could speed up and they would discover we are in an ice age instead of global warming.


Do you know why their applications were programmed in Fortran?
It's over a million lines of code that written by the scientists working on this problem, tried and tested, over a couple of decades, so they could run it on a Cray supercomputer.

To rewrite the applications in another language would take multiple more years, if not decades, nothing said about the man-hours in that and the money that it would cost. You want to pick up that tab?

Besides, even if it could be done, you'd need a pretty hefty card, with at least 750MB of memory on it as that's what some of those models take up in main memory. So again not for everyone then.

JStateson
JStateson
Joined: 7 May 07
Posts: 139
Credit: 1,877,702,852
RAC: 5,685,722

RE: BeemerBiker wrote:If

Message 90267 in response to message 90266

Quote:
BeemerBiker wrote:
If they got away from fortran and switched to the latest technology maybe their computations could speed up and they would discover we are in an ice age instead of global warming.

Do you know why their applications were programmed in Fortran?
It's over a million lines of code that written by the scientists working on this problem, tried and tested, over a couple of decades, so they could run it on a Cray supercomputer.

To rewrite the applications in another language would take multiple more years, if not decades, nothing said about the man-hours in that and the money that it would cost. You want to pick up that tab?

Besides, even if it could be done, you'd need a pretty hefty card, with at least 750MB of memory on it as that's what some of those models take up in main memory. So again not for everyone then.

I was joking of course. However, it would be nice to check their computations much like is done here. There is a discussion about this very problem here. The problem with the humongus lines of fortran code is that (amoung other problems) it is difficult to check their figures ie: be able to duplicate their work and verify it. That is what the scientific method is about - being able to duplicate the same result or experiment every time. Since the fortran code is not being made available one is reduced to reverse engineering the conclusions or observing, for example, that temperature averages were consistently rounded up in the last digit or that random numbers from a phone book can produce the same temperature expectations over the next decade using the Gore or hockeystick climate model.

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