Architecture and Early Performance of the New IBM HPS Fabric and Adapter

Govindaraju, Rama; Hochschild, Peter; Grice, Don; Gildea, K.; Blackmore, Robert; Bender, C. A.; Kim, Chul‐Ho; Chaudhary, Piyush; Goscinski, Jason; Herring, Jay; Martin, Steven L.; Houston, John M.

doi:10.1007/978-3-540-30474-6_21

Cited by 3 publications

(1 citation statement)

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“…However, the performance comparison does not show a significant performance improvement on NAS Parallel Benchmarks [15]. Govindaraju et al presented the design of the IBM High Performance Switch (HPS) Interconnect and a performance evaluation using simple micro-benchmarks [16], [17]. IBM HPS pro-vides Remote Direct Memory Access (RDMA) capability on connectionless transport semantics.…”

Section: Related Workmentioning

confidence: 99%

Evaluating the Potential of Cray Gemini Interconnect for PGAS Communication Runtime Systems

Vishnu

Bruggencate²,

Olson³

2011

2011 IEEE 19th Annual Symposium on High Performance Interconnects

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The Cray Gemini Interconnect has been recently introduced as the next generation network for building scalable multi-petascale supercomputers. The Cray XE6 systems, which use the Gemini Interconnect are becoming available with Message Passing Interface (MPI) and Partitioned Global Address Space (PGAS) Models such as as Global Arrays, Unified Parallel C, Co-Array Fortran and Cascade High Performance Language. These PGAS models use one-sided communication runtime systems such as MPI-Remote Memory Access, Aggregate Remote Memory Copy Interface and proprietary communication runtime systems. The primary objective of our work is to study the potential of Cray Gemini Interconnect by designing application specific micro-benchmarks using the DMAPP userspace library. We design micro-benchmarks to study the performance of simple communication primitives and application specific microbenchmarks to understand the behavior of Gemini Interconnect at scale. In our experiments, the Gemini Interconnect can achieve a peak bandwidth of 6911 MB/s and a latency of 1µs for get communication primitive. Scalability tests for atomic memory operations and shift communication operation up to 65536 processes show the efficacy of the Gemini Interconnect.

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Section: Related Workmentioning

confidence: 99%