2012/5/22 Tomasz Rybak <[email protected]>: > Dnia 2012-05-22, wto o godzinie 14:14 +0200, Vedran Miletic pisze: >> Package: python-pyopencl >> Version: 2011.2+git20120508-1 >> Severity: important >> >> Dear Maintainer, >> >> since 2011.2+git20120508-1, python-pyopencl depends on amd-libopencl1, which >> conflicts with nvidia-libopencl1. This effectively makes it unusable for >> people using it on NVIDIA cards. >> >> I'm sure there is a good reason for the requirement, but could it be relaxed >> somehow? It already requires one or the other by virtual dependancy. > > For more detailed explanation see NEWS from python-pyopencl. > In summary - Debian now contains opencl-headers 1.2. > NVIDIA's OpenCL supports only OpenCL 1.1 - which means that package was > being built successfully but failed to run any code, failing to find > OpenCL 1.2 functions. > OTOH AMD library provides OpenCL 1.2 and works well with NVIDIA GPUs. > AMD deals with managing OpenCL, and forwards all calls to NVIDIA > implementation - hence hard dependency on amd-libopencl1. > > I shall add another entry in NEWS file to describe this situation and > relieve worries of users of PyOpenCL. Any insight what would be > the best description from user point of view? I do not want to go > into details and bore with my description. > > Of course if you experience some crashes with PyOpenCL running on Debian > please let me know. I have tested this combination (NVIDIA+AMD OpenCL > libraries) on both unstable and experimental drivers and have not had > any troubles, but maybe I just got lucky ;-) > > Andreas - I know this is my bug, but maybe it would be good idea to add > some description to OpenCL-related packages? I can write some draft > (but no earlier than middle of next week - I am busy with fixing > PyCUDA) to describe situation with libOpenCL and ICD stuff? > > Best regards. > > -- > Tomasz Rybak GPG/PGP key ID: 2AD5 9860 > Fingerprint A481 824E 7DD3 9C0E C40A 488E C654 FB33 2AD5 9860 > http://member.acm.org/~tomaszrybak >
Hi Tomasz, I followed your instructions, and I'm experiencing Segmentation fault with pyopencl on http://enja.org/2011/02/22/adventures-in-pyopencl-part-1-getting-started-with-python/index.html $ python main.py __kernel void part1(__global float* a, __global float* b, __global float* c) { unsigned int i = get_global_id(0); c[i] = a[i] + b[i]; } Segmentation fault Any suggestions? Vedran Miletić -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected]
