On Sat, 24 Dec 2011 12:48:37 +0100, Martin Kempf <martin.ke...@gmail.com> wrote: > Hi Andreas, > > Am 23.12.2011 12:54, schrieb Andreas Kloeckner: > > Hi Martin, > > > > first of all, sorry for taking so long to reply to this. I had a busy > > end of the (US) semester, with teaching, projects and all. > no problem, thanks for the answer! Meanwhile I have read more on this > topic and it helped me understanding your clarifications. But there are > still some points I am curious about: > > Now onward to the usefulness of both of these packages in conjunction > > with PyCUDA. cgen can be useful if more 'textual' ways of generating > > code don't work for your specific application. That said, I have found > > that textual generation is sufficient in very many settings, and only > > very few types of codegen require the flexibility that cgen offers. (but > > those do exist!) > > Is the example on loopy found in this paper [1] a case where the > flexibiliy of cgen is needed? Where can I find more information on > loopy?
That's loopy as of two prototypes ago. I'll release the current version of loopy as soon as I submit the article that goes with it. > > However, I've made the experience using cgen when it > > isn't required ends up resulting in odd-looking code that's harder to > > maintain than necessary. I am still using cgen in my projects (loopy, > > yet to be announced, being the most recent one)--I'm just more judicious > > about its use. > > > > codepy (in its compile-link variety) can also be used with PyCUDA. Bryan > > Catanzaro has done this in Copperhead, where he uses codepy to drive > > nvcc to compile host-side (!) Python extension modules that execute CUDA > > code. This removes much of PyCUDA from the picture, as now you're using > > the CUDA run-time interface, rather than the driver interface. > > Is this achieved by using the CudaModule of CodePy, combined with the > NVCCToolchain? Correct. Bryan contributed that code. > It is an interesting topic I came accros as it is the topic of my > seminar [2] at the university of applied sciences in Rapperswil, > Switzerland [3]. Great! Good luck with your seminar talk. Andreas
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