[PyCUDA] Inconsistent results between numpy and gpuarray dot products

Andreas Kloeckner lists at informa.tiker.net
Thu Jan 26 09:19:37 PST 2012


Hi Jesse,

On Wed, 25 Jan 2012 14:51:05 -0800, Jesse Lu <jesselu at stanford.edu> wrote:
> The attached script shows highly inconsistent results (> 10% error at
> times) between the numpy and gpuarray dot products. The inconsistent
> results seem to only appear for large gpuarrays of data type complex64 or
> complex128. Any ideas on what's going on? Thanks!

I can reproduce the issue, and I'll try to see what's behind
it. Unfortunately, I have a lot of stuff to do at the moment, so I can't
give you an ETA. Of course, I'd also appreciate any help in getting this
debugged--from anyone on the list! :)

Andreas
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 189 bytes
Desc: not available
URL: <http://lists.tiker.net/pipermail/pycuda/attachments/20120126/bcf4fff3/attachment.pgp>


More information about the PyCUDA mailing list