On Tue, May 31, 2011 at 05:20:35PM +0200, Francesco Pietra wrote: > I have just set up a gaming machine with > > Gigabyte GA 890FXUD5 > AMD Phenom II 10775T > 2 x GTX470 GPU cards > 4 x 4GB RAM > 2 x 1 Tb HD for RAID1 > > and need to install amd64 to run molecular dynamics using (free for > non-commercial use) NAMD software (released binary below or > compilation from source). All that is experimental, with little > experience and I have no experience whatsoever with CUDA cards. My > question is about the version of amd6a to be best used (lenny or > squeeze) and what should be added to the typical server installation > according to the requirements:
Lenny will stop having support soon, so absolutely go with squeeze. The nvidia-glx package in squeeze supports the GTX470 card. Lenny does not. So install squeeze. To install the driver, add 'contrib non-free' to your lines in /etc/apt/sources.list then do: apt-get update apt-get install nvidia-kernel-dkms apt-get install nvidia-glx nvidia-glx-dev libcuda1-dev libcuda1 > (1) NVIDIA Linux driver version 195.17 or newer (released Linux > binaries are built with CUDA 2.3, but can be built with newer versions > as well). squeeze has 195.36.31 so that should work. > (2) libcudart.so.2 included with the binary (the one copied from the > version of CUDA it was built with) must be in a directory in your > LD_LIBRARY_PATH before any other libcudart.so libraries. For example: > > setenv LD_LIBRARY_PATH ".:$LD_LIBRARY_PATH" > (or LD_LIBRARY_PATH=".:$LD_LIBRARY_PATH"; export LD_LIBRARY_PATH) > ./namd2 +idlepoll <configfile> > ./charmrun ++local +p4 ./namd2 +idlepoll <configfile> The libcuda1 package should probably take care of the library I think, but maybe not. wheezy has a lot more cuda packages available, and much newer drivers too, but is of course testing, not stable. > THE FOLLOWING CAN BE SKIPPED, unless one is specifically interested in > the matter: The +idlepoll in the command line is needed to poll the > GPU for results rather than sleeping while idle, i.e. NAMD does not > use any non-specified GPU card. Each namd2 process can use only one > GPU. Therefore you will need to run at least one process for each GPU > you want to use. Multiple processes can share a single GPU, usually > with an increase in performance. NAMD will automatically distribute > processes equally among the GPUs on a node. Specific GPU device IDs > can be requested via the +devices argument on the namd2 command line, > for example: > ./charmrun ++local +p4 ./namd2 +idlepoll +devices 0,2 <configfile> -- Len Sorensen -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected] Archive: http://lists.debian.org/[email protected]
