Complex sentence: Another approach has been to add hardware acceleration to one or more parts of the operation, including hardware processing of MPI queues and using RDMA to directly transfer data between memory and the network interface without CPU or OS kernel intervention.
Split into simpler sentences: Another approach has been to add hardware acceleration to one or more parts of the operation. This may include hardware processing of the MPI queues or the use of RDMA to directly transfer data between memory and the network interface without needing CPU or kernel intervention.