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Title: Investigating the impact of the cielo cray XE6 architecture on scientific application codes.

Abstract

Cielo, a Cray XE6, is the Department of Energy NNSA Advanced Simulation and Computing (ASC) campaign's newest capability machine. Rated at 1.37 PFLOPS, it consists of 8,944 dual-socket oct-core AMD Magny-Cours compute nodes, linked using Cray's Gemini interconnect. Its primary mission objective is to enable a suite of the ASC applications implemented using MPI to scale to tens of thousands of cores. Cielo is an evolutionary improvement to a successful architecture previously available to many of our codes, thus enabling a basis for understanding the capabilities of this new architecture. Using three codes strategically important to the ASC campaign, and supplemented with some micro-benchmarks that expose the fundamental capabilities of the XE6, we report on the performance characteristics and capabilities of Cielo.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Sandia National Laboratories
Sponsoring Org.:
USDOE
OSTI Identifier:
1039014
Report Number(s):
SAND2010-8925C
TRN: US201209%%108
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Conference
Resource Relation:
Conference: Proposed for presentation at the Workshop on Large-Scale Parallel Processing to be held at the IEEE IPDP Symposium held May 16-20, 2011 in Anchorage, AK.
Country of Publication:
United States
Language:
English
Subject:
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE; COMPUTER ARCHITECTURE; EVALUATION; PARALLEL PROCESSING; PERFORMANCE; SIMULATION

Citation Formats

Rajan, Mahesh, Barrett, Richard, Pedretti, Kevin Thomas Tauke, Doerfler, Douglas W, and Vaughan, Courtenay Thomas. Investigating the impact of the cielo cray XE6 architecture on scientific application codes.. United States: N. p., 2010. Web.
Rajan, Mahesh, Barrett, Richard, Pedretti, Kevin Thomas Tauke, Doerfler, Douglas W, & Vaughan, Courtenay Thomas. Investigating the impact of the cielo cray XE6 architecture on scientific application codes.. United States.
Rajan, Mahesh, Barrett, Richard, Pedretti, Kevin Thomas Tauke, Doerfler, Douglas W, and Vaughan, Courtenay Thomas. Wed . "Investigating the impact of the cielo cray XE6 architecture on scientific application codes.". United States.
@article{osti_1039014,
title = {Investigating the impact of the cielo cray XE6 architecture on scientific application codes.},
author = {Rajan, Mahesh and Barrett, Richard and Pedretti, Kevin Thomas Tauke and Doerfler, Douglas W and Vaughan, Courtenay Thomas},
abstractNote = {Cielo, a Cray XE6, is the Department of Energy NNSA Advanced Simulation and Computing (ASC) campaign's newest capability machine. Rated at 1.37 PFLOPS, it consists of 8,944 dual-socket oct-core AMD Magny-Cours compute nodes, linked using Cray's Gemini interconnect. Its primary mission objective is to enable a suite of the ASC applications implemented using MPI to scale to tens of thousands of cores. Cielo is an evolutionary improvement to a successful architecture previously available to many of our codes, thus enabling a basis for understanding the capabilities of this new architecture. Using three codes strategically important to the ASC campaign, and supplemented with some micro-benchmarks that expose the fundamental capabilities of the XE6, we report on the performance characteristics and capabilities of Cielo.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2010},
month = {12}
}

Conference:
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