Design and Implementation of OpenSHMEM Using OFI on the Aries Interconnect
Design and Implementation of OpenSHMEM Using OFI on the Aries Interconnect
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在 Aries 互连上使用 OFI 的 OpenSHMEM 的设计和实现
DOI：
10.1007/978-3-319-50995-2_7
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
S. Sur
中科院分区：
文献类型：
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作者：
Kayla Seager;Sung;James Dinan;H. Pritchard;S. Sur
Sandia OpenSHMEM(SOS)是OpenSHMEM规范的实现，旨在为高速RDMA结构提供可移植性、可伸缩性和性能。LibFabric是新提出的开放结构接口(OFI)的实现，旨在提供HPC编程模型和各种底层结构服务之间的紧密语义匹配。在本文中，我们提出了在ARIES上的SOS OFI传输的设计和评估，ARIES是一种当代的高性能RDMA互连。在白羊座上实现LibFabric时，使用ugni作为互连的最低级别软件接口。UGNI是一个通用接口，可以同时支持消息传递和单边编程模型。我们将我们的工作与Cray SHMEM库的性能进行了比较，并演示了我们的实现提供了与高度调优的生产SHMEM库相当的性能和可伸缩性。此外，LibFabric消息注入功能使SOS能够在带宽和随机访问基准测试中实现与Cray SHMEM相比的小消息性能改进。
Sandia OpenSHMEM (SOS) is an implementation of the OpenSHMEM specification that has been designed to provide portability, scalability, and performance on high-speed RDMA fabrics. Libfabric is the implementation of the newly proposed Open Fabrics Interfaces (OFI) that was designed to provide a tight semantic match between HPC programming models and various underlying fabric services.In this paper, we present the design and evaluation of the SOS OFI transport on Aries, a contemporary, high-performance RDMA interconnect. The implementation of Libfabric on Aries uses uGNI as the lowest-level software interface to the interconnect. uGNI is a generic interface that can support both message passing and one-sided programming models. We compare the performance of our work with that of the Cray SHMEM library and demonstrate that our implementation provides performance and scalability comparable to that of a highly tuned, production SHMEM library. Additionally, the Libfabric message injection feature enabled SOS to achieve a performance improvement over Cray SHMEM for small messages in bandwidth and random access benchmarks.