I have several applications where data transfer is a major issue and am interested in trying to get GPUDirect RDMA to work. Consider a cluster of nodes connected via 10 GigE (can choose adapter if that helps) hosting Tesla K20s and running CUDA 5.
Thus far, almost all of the information that I have found regarding GPUDirect already working is via Infiniband adapters. I have done quite a bit of reading on RDMA over Ethernet, but am confused as to its current status. From what I can tell, development is in progress and it is basically not yet supported by anyone.
So, is anyone aware of a 10 GigE adapter that currently supports GPUDirect? Also, is support only required on the receiving node (e.g., in the case that data is streaming over 10 GigE from an FPGA onto a host with a 10 GigE NIC and a GPU)?