Hi Tomasz, all, On Fri, 15 Oct 2010 19:27:36 +0200, Tomasz Rybak <bogom...@post.pl> wrote: > Can anyone with Fermi (GTX 460, 470, 480 - are there other Fermi cards?) > tell whether attached patch solves problems with GPUArray on Fermi? > There has been discussion here on this list (started on 2010-09-27 > by jmcarval) about problems with GPUArray. In summary, > test/test_gpuarray.py failed four times on Fermi. > > I have send this patch to mailing list on 2010-10-01, but got no > reply whether it works or not.
Sorry for taking a while to reply to stuff recently. I am in the process of getting settled into a new job and every once in a while, work (especially teaching) is a bit much at the moment. When that happens, I disappear for a little while. This will likely also happen in the future, but don't worry, I'm around, and once the workload drops a bit, I come back. :) Next, thank you very much for the careful analysis you've done on this bug. Especially given what I've said above, this was super-helpful and much appreciated. Julien Cornebise had previously given me access to one machine where the issue was reproducible (Thanks, Julien!), and just now I verified that a) the problem was still present before I applied your patch and b) that your patch seems to fix the issue. (Both Joao's simple example and the test suite.) This leads me to believe that the Fermi reduction mystery should be solved. Thanks very much for making this happen, Tomasz! The fix is already in git, and I've also released 0.94.2 to make sure that as many people as possible get the fixed code. > I would like to know if it works to know how to proceed with > PyCUDA packaging for Debian. CUDA toolkit is waiting to be > included, and as soon as it is accepted into Debian I intend > to ask for sponsorship for PyCUDA packages. > I am not sure, however, if I should leave PyCUDA as is (and > risk filling bugs by with Fermi GPUs) or to apply untested > patch, and risk that it does not work fully/has some side effects. I hope the above solves your packaging dilemma, too. Andreas
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