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Title: Full Core Reactor Analysis: Running Denovo on Jaguar

Abstract

Fully-consistent, full-core, 3D, deterministic simulations using the orthogonal mesh code Denovo were run on the massively parallel computing architecture Jaguar XT5. Using energy and spatial parallelization schemes, Denovo was able to efficiently scale to over 160k processors. Cell-homogenized cross-sections were used with Step-Characteristics, Linear-Discontinuous Finite Element, and Tri-Linear-Discontinuous Finite Element spatial methods. It was determined that using the finite element methods gave considerably more accurate eigenvalue solutions for large aspect ratios meshes than those using Step-Characteristics.

Authors:
 [1];  [1];  [1];  [1]
  1. ORNL
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1039610
DOE Contract Number:  
DE-AC05-00OR22725
Resource Type:
Conference
Resource Relation:
Conference: PHYSOR 2012: Advances in Reactor Physics Linking Research, Industry, and Education, Knoxville, TN, USA, 20120415, 20120420
Country of Publication:
United States
Language:
English
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; 99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE; COMPUTER ARCHITECTURE; ASPECT RATIO; CROSS SECTIONS; EDUCATION; EIGENVALUES; FINITE ELEMENT METHOD; REACTOR PHYSICS; PARALLEL PROCESSING; Determininistic Transport; Reactor Analysis; Denovo; Jaguar

Citation Formats

Jarrell, Joshua J, Godfrey, Andrew T, Evans, Thomas M, and Davidson, Gregory G. Full Core Reactor Analysis: Running Denovo on Jaguar. United States: N. p., 2012. Web.
Jarrell, Joshua J, Godfrey, Andrew T, Evans, Thomas M, & Davidson, Gregory G. Full Core Reactor Analysis: Running Denovo on Jaguar. United States.
Jarrell, Joshua J, Godfrey, Andrew T, Evans, Thomas M, and Davidson, Gregory G. Sun . "Full Core Reactor Analysis: Running Denovo on Jaguar". United States.
@article{osti_1039610,
title = {Full Core Reactor Analysis: Running Denovo on Jaguar},
author = {Jarrell, Joshua J and Godfrey, Andrew T and Evans, Thomas M and Davidson, Gregory G},
abstractNote = {Fully-consistent, full-core, 3D, deterministic simulations using the orthogonal mesh code Denovo were run on the massively parallel computing architecture Jaguar XT5. Using energy and spatial parallelization schemes, Denovo was able to efficiently scale to over 160k processors. Cell-homogenized cross-sections were used with Step-Characteristics, Linear-Discontinuous Finite Element, and Tri-Linear-Discontinuous Finite Element spatial methods. It was determined that using the finite element methods gave considerably more accurate eigenvalue solutions for large aspect ratios meshes than those using Step-Characteristics.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {1}
}

Conference:
Other availability
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