nvidia-nuda-toolkit 6.5

[Graham Inggs]

The CUDA download pages on Nvidia's web site are rather confusing.

There is the CUDA 6.5 Production Release [1] page for version 6.5.14 
that has .run installers for Linux x86 32 and 64 bits.
There is also a .run installer for Linux ARM 64, but for Linux ARM 32 it 
is only available as a .deb.
The graphics driver bundled with version 6.5.14 is 340.29.

There is also a CUDA 6.5 Production Release with Support for GeForce 
GTX9xx GPUs [2] page for version 6.5.19 that has .run installers for 
Linux x86 32 and 64 bits.  The graphics driver bundled with version 
6.5.19 is 343.19.
The FAQ section of this page contains the following:
Q: What's new?
A: The 6.5.27 toolkit fixes the "nvlink error" when building any of the 
cdp* sample.
I think version 6.5.27 is available for Mac OSX only.

Lastly, there is the CUDA 7.0 Release Candidate [3] page (requires 
login) for version 7.0.18 that has a .run installer for Linux x86 64 bit 
only.
There is a .deb installer for Linux POWER8 (ppc64el).  The graphics 
driver bundled with version 7.0.18 is 346.29.

I am trying to decide whether to package 6.5.14 for x86 32 and 64 bits 
only, now, or hold out for the production release of 7.0.

As far as Ubuntu goes, since nvidia-cuda-toolkit is in multiverse, it is 
relatively easy to get a FeatureFreeze exception and that could even be 
filed now if we decided to wait for 7.0.
Ubuntu 15.04 will have driver version 346.35 (at least) and hopefully 
some version of 340 as well (if I can convince Alberto - 346 drops 
support for many cards).

Since dpkg 1.17.11, Debian now has versioned Provides [4].  This could 
simplify the driver packaging in Ubuntu as we can get rid of Provides: 
libcuda-5.0-1, libcuda-5.5-1, libcuda-6.0-1, libcuda-6.5-1, 
libcuda-7.0-1, etc.  We would probably only want to change this in a LTS 
release, so nvidia-cuda-toolkit should continue to Build-Depends on 
libcuda1 | libcuda-6.0-1 (or -6.5-1, or -7.0-1, as applicable).


[1] https://developer.nvidia.com/cuda-downloads
[2] https://developer.nvidia.com/cuda-downloads-geforce-gtx9xx
[3] https://developer.nvidia.com/rdp/cuda-70-rc-downloads
[4] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=7330#47

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