Re: [Starpu-devel] CPU data on a GPU kernel

[Xavier Lacoste <xavier.lacoste@inria.fr>]

I suppose it will be the same if I need a working buffer (STARPU_SCRATCH) for 
the CPU part of my kernel, I have to deal with it by hand ?

XL.

Le 9 juil. 2012 à 09:42, Xavier Lacoste a écrit :

> Ok thanks, so i'll do it by hand.
> 
> Le 7 juil. 2012 à 13:57, Samuel Thibault a écrit :
> 
>> Xavier Lacoste, le Fri 06 Jul 2012 16:59:40 +0200, a écrit :
>>> Is there a way to do a reduction on a variable hosted on a CPU on a CUDA 
>>> kernel ?
>> 
>> That would make the code quite more hairy to handle this special use.
>> StarPU has also not much to optimize in that case, I'm not sure you will
>> gain much from using its reduction mode here.
>> 
>> Samuel
> 
> 
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