This has been a topic of discussion previously , but I haven't seen any comment from anybody at Intel regarding it: is there anything that can be done about the poor performance of NFS on the MIC? I timed copying a 500 MB file from the host over NFS and got about 20MB/s, which is far too slow to drive a native application's I/O. I was hoping for at least an order of magnitude faster, even though the PCI express bus should be able to sustain at least 2 orders of magnitude more. Can it be done?
What is the recommended alternative to doing I/O natively? For example, should I be using SCIF with a small application running on the host that performs the I/O for the native application? Should I be using MPI? I was hoping that with NFS I could get away with not using any cores on the host, but it appears that might not be possible.