[Pw_forum] Could Q-E benefit a lot from GPU computation.

[Paolo Giannozzi]

On Oct 17, 2009, at 7:54 , vega lew wrote:

> But the most important thing is that the computer center only has GPU
> with CUDA for calculation instead of CPU with Fortran. Is there a  
> possibility
> now to transplant the current Q-E code easily to the GPU computer with
> single precession? Do you think Double precession is so important  
> for Q-E codes?

you mean: single/double "precision" ? I think double precision is  
important.
Anyway, there is some ongoing work on porting Q-E to GPUs.

P.
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Paolo Giannozzi, Dept of Physics, University of Udine
via delle Scienze 208, 33100 Udine, Italy
Phone +39-0432-558216, fax +39-0432-558222