On Mon, 08 Nov 2010 13:36:01 +0900, jackin <jac...@opt.utsunomiya-u.ac.jp> wrote: > Dear Andreas and all PYCUDA enthusiasts, > Will PYCUDA work on Multi-GPU's connected using > infiniband. I guess it should work out of box, provided GPUDirect is > properly installed and working in the machine. I would like to hear your > comments on this before I make a purchase.
I just took at the nvidia-gpudirect package, and it seems that as long you hand your MPI implementation some pinned memory you've obtained from CUDA, you should be all set. In particular, PyCUDA already contains everything you need to use GPUDirect. HTH, Andreas
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