[Paraview] Coprocessing with accelerators

[Andy Bauer]

Hi Mark,

There are other people interested in this as well since as you point out it
can be a bit of a waste to move data from the GPU to the CPU and then back
to the GPU. I don't know anyone that is working on this problem yet either
but it will be a necessary improvement that eventually should be done.
Hopefully it's just an SBIR or STTR away :)

Andy


On Tue, Aug 20, 2013 at 3:57 PM, David E DeMarle
<dave.demarle at kitware.com>wrote:

> I am not sure if anyone has tried putting Piston and Coprocessing together
> yet. If so I would like to hear about it. If not and someone is trying, I
> wouldn't mind getting involved in that effort.
>
> But yes Mark you are right. As it stands there will be a round trip in
> between the simulation and vis stages. We will have to extend Catalyst with
> the ability to create a vtkPistonDataObject that refers to the data already
> on the GPU in order to avoid it.
>
>
>
>
>
>
>
> David E DeMarle
> Kitware, Inc.
> R&D Engineer
> 21 Corporate Drive
> Clifton Park, NY 12065-8662
> Phone: 518-881-4909
>
>
> On Tue, Aug 20, 2013 at 12:45 PM, Vanmoer, Mark W <mvanmoer at illinois.edu>wrote:
>
>>  Hello, for a CUDA application with coprocessing, is it correct that
>> between a simulation step and coprocessing that the data will make a
>> roundtrip from the device to the host and back to the device, since parts
>> of the vis pipeline run on the CPU?****
>>
>> ** **
>>
>> Can Piston work with coprocessing, would that avoid this round-trip? ****
>>
>> ** **
>>
>> How about for Xeon Phis?****
>>
>> ** **
>>
>> Thanks,****
>>
>> Mark****
>>
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