APEnet+: high bandwidth 3D torus direct network for petaflops scale   commodity clusters
  We describe herein the APElink+ board, a PCIe interconnect adapter featuring the latest advances in wire speed and interface technology plus hardware support for a RDMA programming model and experimental acceleration of GPU networking; this design allows us to build a low latency, high bandwidth PC cluster, the APEnet+ network, the new generation of our cost-effective, tens-of-thousands-scalable cluster network architecture. Some test results and characterization of data transmission of a complete testbench, based on a commercial development card mounting an Altera FPGA, are provided. 
Roberto Ammendola, Andrea Biagioni, Ottorino Frezza, Francesca Lo   Cicero, Alessandro Lonardo, Pier Stanislao Paolucci, Dav...
physics.comp-ph cs.AR