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
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