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Firefly with CUDA-enabled MP4 code is now available for Linux

Alex Granovsky

Dear Firefly users,

those of you who are interested to try CUDA-enabled Linux binaries
of current Firefly v. 8.0.0 beta, please contact me directly off
the list for details on how to get access to prerelease binaries.

Best regards,
Alex Granovsky

P.S. Working on the Linux port of our MP4/CUDA code initially
developed a year ago for Windows version, we unexpectedly found
that (unlike Windowd CUDA implementation), cudaHostAlloc/cuMemHostAlloc
CUDA API calls return non-initialized pinned memory.
Depending on how exactly this pinned memory is allocated by CUDA
runtime/CUDA driver, this may be the serious system-wide security
hole potentially allowing one to examine regions of memory previously
used by other programs and Linux kernel itself. We are now in contact
with NVidia trying to clarify as much details on this problem as
possible. Meanwhile, we'd recommend everybody to stop running CUDA
drivers on any multiuser Linux system.

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