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Title: Open MPI for Cray XE/XK Systems


Manjunath Gorentla Venkata, Richard L. Graham, Nathan T. Hjelm, and Samuel K. Gutierrez


Open MPI provides an implementation of the MPI standard supporting communications over a range of high-performance network interfaces. Recently, ORNL and LANL have collaborated on creating a port of Open MPI for Gemini, the network interface for Cray XE and XK systems. In this paper, we present our design and implementation of Open MPI's point-to-point and collective operations for Gemini, and techniques we employ to provide good scaling, and performance characteristics.

Presented: Cray Users Group (CUG) '12, April 29th - May 3rd, 2012, Stuttgart, Germany.


cug_2012_open_mpi_for_cray_xe_xk.pdf (PDF)

Bibtex reference:

author = {Manjunath Gorentla Venkata and Richard L Graham and Nathan T Hjelm and Samuel K Gutierrez},
title = {Open MPI for Cray XE/XK Systems},
year = {2012},
masid = {60095403}