Status of the APENet project
  We present the current status of APENet, our custom 3-dimensional interconnect architecture for PC clusters environment. We report some micro-benchmarks on our recent large installation as well as new developments on the software and hardware side. The low level device driver has been reworked by following a custom hardware RDMA architecture, and MPICH-VMI, an implementation of the MPI library, has been ported to APENet. 
R. Ammendola, R. Petronzio, D. Rossetti, A. Salamon, N. Tantalo, P.   Vicini