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Title: Parallel Algorithms and Optimization for Protection of Critical Infrastructure.


Abstract not provided.

Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
Report Number(s):
DOE Contract Number:
Resource Type:
Resource Relation:
Conference: Proposed for presentation at the Invited seminar at National Renewable Energy Laboratory held October 3, 2016 in Golden, CO.
Country of Publication:
United States

Citation Formats

Laird, Carl Damon. Parallel Algorithms and Optimization for Protection of Critical Infrastructure.. United States: N. p., 2016. Web.
Laird, Carl Damon. Parallel Algorithms and Optimization for Protection of Critical Infrastructure.. United States.
Laird, Carl Damon. 2016. "Parallel Algorithms and Optimization for Protection of Critical Infrastructure.". United States. doi:.
title = {Parallel Algorithms and Optimization for Protection of Critical Infrastructure.},
author = {Laird, Carl Damon},
abstractNote = {Abstract not provided.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2016,
month =

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  • The goal of the PRISM project is the development of infrastructure and algorithms for the parallel solution of eigenvalue problems. We are currently investigating a complete eigensolver based on the Invariant Subspace Decomposition Algorithm for dense symmetric matrices (SYISDA). After briefly reviewing the SYISDA approach, we discuss the algorithmic highlights of a distributed-memory implementation of an eigensolver based on this approach. These include a fast matrix-matrix multiplication algorithm, a new approach to parallel band reduction and tridiagonalization, and a harness for coordinating the divide-and-conquer parallelism in the problem. We also present performance results of these kernels as well as themore » overall SYISDA implementation on the Intel Touchstone Delta prototype and the IBM SP/1.« less
  • Abstract not provided.
  • Today’s society relies upon an array of complex national and international infrastructure networks such as transportation, telecommunication, financial and energy. Understanding these interdependencies is necessary in order to protect our critical infrastructure. The Critical Infrastructure Modeling System, CIMS©, examines the interrelationships between infrastructure networks. CIMS© development is sponsored by the National Security Division at the Idaho National Laboratory (INL) in its ongoing mission for providing critical infrastructure protection and preparedness. A genetic algorithm (GA) is an optimization technique based on Darwin’s theory of evolution. A GA can be coupled with CIMS© to search for optimum ways to protect infrastructure assets.more » This includes identifying optimum assets to enforce or protect, testing the addition of or change to infrastructure before implementation, or finding the optimum response to an emergency for response planning. This paper describes the addition of a GA to infrastructure modeling for infrastructure planning. It first introduces the CIMS© infrastructure modeling software used as the modeling engine to support the GA. Next, the GA techniques and parameters are defined. Then a test scenario illustrates the integration with CIMS© and the preliminary results.« less
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  • No abstract prepared.