Title :
Tianhe-1A Interconnect and Message-Passing Services
Author :
Min Xie ; Yutong Lu ; Kefei Wang ; Lu Liu ; Hongjia Cao ; Xuejun Yang
Author_Institution :
Nat. Univ. of Defense Technol., Changsha, China
Abstract :
The petascale supercomputer Tianhe-1A, which features hybrid multicore CPU and GPU computing, achieves an optimized balance of computation and communication capabilities through a proprietary high-bandwidth, low-latency interconnect fabric. The authors´ message-passing service, based on scalable user-level communication and offloaded operations for large-scale, low-latency collective communication, has achieved a unidirectional bandwidth of 6,340 Mbytes/s.
Keywords :
graphics processing units; message passing; multiprocessor interconnection networks; parallel machines; Tianhe-1A interconnect; hybrid multicore CPU-GPU computing; large scale low latency collective communication; low latency interconnect fabric; message passing services; offloaded operations; petascale supercomputer; unidirectional bandwidth; user level communication; Message passing; Optical switches; Protocols; Radiation detectors; Software; CPU; GPU; MPI; TianHe-1A; collective communication; supercomputer; user-level communication;
Journal_Title :
Micro, IEEE
