On Mon, May 16, 2011 at 07:17:46AM +0200, Francesco Pietra wrote: > I also forgot a most important aspect of CUDA in the choice of the > mainboard. Currently, the GPUs carry out only a part - albeit major - > of the task (non bonded forces), while bonded forces and PME > long-range forces are left to the CPUs. In practice, a CPU to GPU 2:1 > ratio is still needed. The situation is not likely to change rapidly > due to enormous task of parallelizing with the myriad of loci on GPUs. > Perhaps, developers are waiting until GPU-CPU integrated boards are > available.
GTX 570 cards can be found in single slot versions, which helps a lot for what you want. A number of motherboards with 4 PCIe x16 slots can be found as well. If ou want a 2:1 ratio of cpu to gpu, then probably a dual 6 core xeon or even dual 4 core would be good. A single 8 or 12 core opteron might also be possible to get if anyone makes a board with four slots for video cards. EVGA has a board called the SR-2 which takes dual xeon (up to 6 core each), and has 7 PCIe x16 slots for video cards and such. Putting four single slot GTX 570s in that should not be a problem. It can take at least 24GB of ram. There are a few others like it around. You would need a serious power supply for 4 video cards of course, but that isn't a big deal. -- Len Sorensen -- To UNSUBSCRIBE, email to debian-amd64-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20110516164345.gh21...@caffeine.csclub.uwaterloo.ca
