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Cluster 2005 |
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Ramesh VelurEunni
RAIT Workshop
IEEE
International Conference on Cluster Computing (Cluster 2005)
Boston, Massachusetts, USA, September 26, 2005
The hardware-software
interaction forthe industry-standard Remote Direct
Memory Access (RDMA) devices have only been defined as an abstract set of
operations. While the abstract definition has allowed vendors to build RDMA
adapters, the industry still lacks a genericsoftware
interface definition that
hardware and system vendors can code to. This paperpresents
the industry-standard RDMA NIC Programming Interface (RNIC-PI)and
its flexiblearchitecture, the role it plays in the
industry and the challengesencountered in reaching
agreement on a common set of semantics that is acceptableto
a variety of Operating Systems and RDMA NIC vendors.A
vehicle to translate the interface into reality on Linux is described in the
end along withsome suggestions on futurecourse
of action.
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