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----------------------------------------------------------------------Mellanox has contributed substantially to the code for the ib channel.To our original implementation based on the Infiniband send/receive model, Mellanox added code to use the RDMA/poll model to reduce latency, code to align buffers to cache line sizes, and code to handle registration failures for large messages by falling back on the eager message protocol.The code contributed by Mellanox does not appear verbatim, but has been massaged and merged into the existing MPICH2 code. We thank Mellanox for their contributions, which have substantially improved the performance of this channel. Mellanox has made this contribution available under the same conditions as we Make MPICH2 available (see the COPYRIGHT file in the top-level directory: "Permission is hereby granted to use, reproduce, prepare derivative works, and to redistribute to others."-----------------------------------------------------------------------
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