An early performance analysis of POWER7-IH HPC systems
Proceedings of 2011 International Conference for High Performance Computing, Networking, Storage and Analysis
Poster: mini-applications: vehicles for co-design
Proceedings of the 2011 companion on High Performance Computing Networking, Storage and Analysis Companion
Concurrency and Computation: Practice & Experience
Evaluating the feasibility of using memory content similarity to improve system resilience
Proceedings of the 3rd International Workshop on Runtime and Operating Systems for Supercomputers
A performance comparison of current HPC systems: Blue Gene/Q, Cray XE6 and InfiniBand systems
Future Generation Computer Systems
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Cielo, a Cray XE6, is the Department of Energy NNSA Advanced Simulation and Computing (ASC) campaign's newest capability machine. Rated at 1.37 PFLOPS, it consists of 8,944 dual-socket oct-core AMD Magny-Cours compute nodes, linked using Cray's Gemini interconnect. Its primary mission objective is to enable a suite of the ASC applications implemented using MPI to scale to tens of thousands of cores. Cielo is an evolutionary improvement to a successful architecture previously available to many of our codes, thus enabling a basis for understanding the capabilities of this new architecture. Using three codes strategically important to the ASC campaign, and supplemented with some micro-benchmarks that expose the fundamental capabilities of the XE6, we report on the performance characteristics and capabilities of Cielo.