Turbocharging Rack-Scale In-Memory Computing with Scale-Out NUMA

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• Boris Grot - University of Edinburgh
• Wednesday 04 May 2016, 11:00-12:00
• Small Lecture Theatre, Microsoft Research Ltd, 21 Station Road, Cambridge, CB1 2FB.

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Web-scale online services mandate fast access to massive quantities of data. In practice, this is accomplished by sharding the datasets across a pool of servers within a datacenter and keeping each shard in the servers’ main memory to avoid long-latency disk I/O. Accesses to non-local shards take place over the datacenter network, incurring communication delays that are 20-1000x greater than accesses to local memory. In this talk, I will introduce Scale-Out NUMA —a rack-scale architecture with an RDMA -inspired programming model that eliminates chief latency overheads of existing networking technologies and reduces the remote memory access latency to a small factor of local DRAM . I will overview key features of Scale-Out NUMA and will describe how it can bridge the semantic gap between software and hardware through integrated support for atomic object reads.

This talk is part of the Microsoft Research Cambridge, public talks series.

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