GUPPI Rescheduler for Linux and Windows - Move GUPPI work to CPU and non-GUPPI to GPU

Message boards : Number crunching : GUPPI Rescheduler for Linux and Windows - Move GUPPI work to CPU and non-GUPPI to GPU
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Stephen "Heretic"Special Project $250 donor
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Message 1883704 - Posted: 13 Aug 2017, 22:46:48 UTC - in response to Message 1883621.  


That sound's like a scheduler upgrade project. I wonder if we could find a volunteer programmer team to take that on? It would speed up the whole infrastructure. Setup a parameter file driven scheduler so that at least for now, if it is a Guppi it is issued as a cpu task only.

Tom

Not gonna happen, Tom.
At some point Arecibo data will either be scarce or unavailable. We are already reprocessing '08 data with the newer apps.
When Arecibo data is unavailable, all work will be Guppi, unless or until some other data sources are brought into the mix.
And as far as the project goes, restricting Guppi work to CPU only would not be a priority at all.

Just my opinion, of course.


. . Hey, I am still waiting to see if we get any work from Parkes, they have been online for a long time now but we are not getting any data from them. I wonder if we need to fund some racks of water cooled recorders like at Greenback ? :)

Stephen

:)
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Message 1883705 - Posted: 13 Aug 2017, 22:48:13 UTC - in response to Message 1883671.  

Mark is correct Tom.

The future of all work units will be "Guppi" or more actually BLC..since some BLC won't have guppi in their name (tends to confuse some people) I'm guilty because I was among the first to coin that term and realized later it confused alot of people.

Z


. . I still like the imagery ....

Stephen

:)
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Profile ZalsterSpecial Project $250 donor
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Message 1883708 - Posted: 13 Aug 2017, 22:50:13 UTC - in response to Message 1883703.  

Only problem with this argument is once there are no more non-blc, there is no work for GPUs.......

BLC is here to stay, deal with it the best we can....
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Stephen "Heretic"Special Project $250 donor
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Message 1883710 - Posted: 13 Aug 2017, 22:58:03 UTC - in response to Message 1883675.  

Hi,

The BLC/GBT/Guppi work units complete in under 2 or 3 minutes on NVIDIA with the 1080 and the 1080Ti running 'special' app. The old CUDA 50 app is slow. The same applies to Arecibo vlars. So I don't reschedule.

Petri


. . Yep and that makes perfect sense, but I will point out the same issue that I did to Zalster a long, long time ago. 99% of contributors do not have streamlined, jet powered guppi mincers like Zalster and yourself. But there certainly is a point where the GPU power so exceeds CPU abilities that rescheduling is of little use except maybe to top up the GPU caches for the outrages.

. . In the meantime there are a lot of rigs out there that would be far more productive if using one.

Stephen

:)
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Message boards : Number crunching : GUPPI Rescheduler for Linux and Windows - Move GUPPI work to CPU and non-GUPPI to GPU


 
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