Title: MPI Library and Low-Level Communication on the K computer
Author(s): Naoyuki Shida, Shinji Sumimoto, Atsuya Uno
Abstract:
The key to raising application performance in a massively parallel system like the K computer is to increase the speed of communication between compute nodes. In the K computer, this inter-node communication is governed by the Message Passing Interface (MPI) communication library and low-level communication. This paper describes the implementation and performance of the MPI communication library, which exploits the new Tofu-interconnect architecture introduced in the K computer to enhance the performance of petascale applications, and low-level communication mechanism, which performs fine-grained control of the Tofu interconnect.
Presented: FUJITSU Scientific & Technical Journal 2012-7 (Vol.48, No.3)
Paper:
Bibtex reference:
@Article{shida2012:mpi_kcomputer,
author = {Naoyuki Shida and Shinji Sumimoto and Atsuya Uno},
title = {{MPI} Library and Low-Level Communication on the {K computer}},
journal = {FUJITSU Scientific \& Technical Journal},
month = {July},
year = {2012},
volume = {48},
number = {3},
pages = {324--330}
}
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