Connecting the Cloud: Transparent and Flexible Communication for a Cluster of Intel SCCs.
Pablo Reble, Carsten Clauß, Michael Riepen, Stefan Lankes, Thomas Bemmerl · 2012
Abstract—The focus of this paper is the analysis of Inter-Processor Communication for future many-core processors. We present a prototype that connects two Intel Single-chip Cloud Computer boards via PCI express in a transparent way, which creates a high flexibility concerning the target of a remote memory access. This enables message passing based applications using RCCE as well as MPI to run on a Cluster-of-Clusters consisting of 96 SCC cores. As a result, it is possible to analyze programming models for the SCC Many-Core Processors regarding scalability and hierarchy-aware communication in more detail. Along with this, we present first performance results and develop alternative communication and synchronization schemes for optimization. I.