GPUGrid and Seti@home CUDA

Questions and Answers : GPU applications : GPUGrid and Seti@home CUDA
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Profile Borgholio
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Message 926821 - Posted: 17 Aug 2009, 19:45:08 UTC

I seem to notice that when I have both GPUGrid and Seti@home active at the same time, that BOINC tends to prefer to run GPUGrid instead of Seti@home...even though long and short term debts are in Seti's favor.

In order to get BOINC to run Seti tasks, I have to suspend GPUGrid completely. Anybody else notice this?
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Message 926899 - Posted: 18 Aug 2009, 2:20:22 UTC

Are you sure about the debts? Have you checked to see what they are?
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Message 926904 - Posted: 18 Aug 2009, 2:52:40 UTC - in response to Message 926899.  

Are you sure about the debts? Have you checked to see what they are?


Yep, from BOINCview:

Computer One

GPU Grid -
Short term = -46,789.06 seconds
Long term = -242,149 seconds

Seti@home
Short term = 74,265.49 seconds
Long Term = -122.91 seconds



Computer Two

GPU Grid -
Short term = 19,621.81 seconds
Long term = -225,157.50 seconds

Seti@home
Short term = 86,400 seconds
Long Term = 0 seconds



Based on my limited knowledge of BOINC debt, I would assume that the higher the debt, the higher priority that project would receive. In both cases, Seti@home is much higher short and long term debts than GPUGrid, and they both have Seti@home workunits already waiting in the cache. Wouldn't BOINC run Seti@home until GPUGrid racked up more debt? As it is currently standing, BOINC actually will download more GPUGrid units rather than switching to SETI.

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Profile Fred J. Verster
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Message 926961 - Posted: 18 Aug 2009, 11:09:02 UTC - in response to Message 926904.  

Hi, I didn't check if I have a negative dept on GPUgrid, or SETI.
I started with GPUgrid and installed CUDA for SETI a month later, when I changed my resource-share in favor of SETI, this slowly changed and seems quite balanced if you take the resource share into account.

My 8500GT card appeared too slow for GPUgrid, but works OK with SETI and has about the same crunch time as a CPU core.

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Message 927015 - Posted: 18 Aug 2009, 22:32:56 UTC - in response to Message 926961.  

Hi, I didn't check if I have a negative dept on GPUgrid, or SETI.
I started with GPUgrid and installed CUDA for SETI a month later, when I changed my resource-share in favor of SETI, this slowly changed and seems quite balanced if you take the resource share into account.

My 8500GT card appeared too slow for GPUgrid, but works OK with SETI and has about the same crunch time as a CPU core.



In this case I have the opposite...I had been running SETI Cuda since it first came out and only now am I adding GPUGrid. I also added about 10 other projects over the last month so it could just be that BOINC is working out the balance. Resource share works with GPU tasks too, yes?
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Message 927718 - Posted: 21 Aug 2009, 15:06:14 UTC

Does anyone know if there is a CUDA capable AGP card? I have a couple of older machines which don't crunch much but could be useful if such a card is available.


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Message 927721 - Posted: 21 Aug 2009, 15:17:07 UTC - in response to Message 927718.  

As long as the AGP card has one of these nVidia class GPUs, it should work.
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Message 927779 - Posted: 21 Aug 2009, 17:58:29 UTC - in response to Message 927721.  

I guess I should have been more clear. Does anyone make an AGP card that uses an Nvidia CUDA capable GPU?

Who makes such a card?

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Message 927789 - Posted: 21 Aug 2009, 19:30:31 UTC - in response to Message 927779.  

I posted that list so you can search for yourself if you happen to come across one.
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Message 927850 - Posted: 21 Aug 2009, 22:59:43 UTC - in response to Message 927789.  

Meanwhile, I have purchased a GeForce 9400 GT based card for my PCIe based Dell. Seti@Home now recognizes a CUDA card but is there any need to install a CUDA driver from NVidia or am I good to go right out of the box with just the NVidia graphics drivers for Vista?


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Message 927851 - Posted: 21 Aug 2009, 23:03:12 UTC - in response to Message 927850.  
Last modified: 21 Aug 2009, 23:03:29 UTC

Meanwhile, I have purchased a GeForce 9400 GT based card for my PCIe based Dell. Seti@Home now recognizes a CUDA card but is there any need to install a CUDA driver from NVidia or am I good to go right out of the box with just the NVidia graphics drivers for Vista?


Seems like it's got the 190.38 drivers so you should be good to go.

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Message 927852 - Posted: 21 Aug 2009, 23:06:26 UTC - in response to Message 927851.  

Thanks for clearing that up.

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Questions and Answers : GPU applications : GPUGrid and Seti@home CUDA


 
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