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Accelerating Synchronization Communications for High-density Blade Enclosure by Zheng Cao; Fei Chen; Xuejun An; Qiang Li is a scholarly article available to read on EtoBox.

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The high-density blade server provides an attractive solution for the rapidly increasing demand on computing. The degree of parallelism inside a blade enclosure today has reached up to hundreds of cores. In such parallelism, it is necessary to accelerate synchronization operations. In order to accelerate intra-enclosure synchronization operations, this paper proposes a single chip design SyncRouter on the midplane of the blade enclosure. The architecture of SyncRouter is somewhat like a microprocessor whose memory system is of tag-value structure. We call such a memory system Shared Synchronization Memory (SSM). In this paper, both the architecture and usage of the proposed SyncRouter are introduced in detail. We also build a blade enclosure with the SyncRouter implemented in Xilinx XC6LX365T FPGA. Evaluations using both micro-benchmarks and benchmarks are performed on the blade enclosure. The latency of one pair of ssm\_put and ssm\_get and the minimum latency of ssm\_barrier are 0.62μs, and the minimum latency of ssm\_reduce is 0.81μs. Regarding the benchmarks 2D Wave-front and LU, the speedup of using the fine-grained synchronization primitive ssm\_put/ssm\_get outperforms the o

Author

Zheng Cao; Fei Chen; Xuejun An; Qiang Li

Publisher

ACM

Published

2014

Language

EN