• Publications
  • Influence
Some large-scale matrix computation problems
Abstract There are numerous applications in physics, statistics and electrical circuit simulation where it is required to bound entries and the trace of the inverse and the determinant of a largeExpand
Vectorized Sparse Matrix Multiply for Compressed Row Storage Format
TLDR
A vectorizable algorithm for performing sparse matrix vector multiply in compressed sparse row (CSR) storage format. Expand
Tokamak profile prediction using direct gyrokinetic and neoclassical simulation
Tokamak transport modeling scenarios, including ITER [ITER Physics Basis Editors, Nucl. Fusion 39, 2137 (1999)] performance predictions, are based exclusively on reduced models for core thermal andExpand
GYRO: A 5-D Gyrokinetic-Maxwell Solver
  • M. Fahey, J. Candy
  • Computer Science
  • Proceedings of the ACM/IEEE SC2004 Conference
  • 6 November 2004
TLDR
GYRO solves the 5-dimensional gyrokinetic-Maxwell equations in shaped plasma geometry, using either a local (fluxtube) or global radial domain. Expand
The Automatic Library Tracking Database
A library tracking database has been developed and put into production at the National Institute for Computational Sciences and the Oak Ridge Leadership Computing Facility (both located at Oak RidgeExpand
User Environment Tracking and Problem Detection with XALT
TLDR
This work enhances our understanding of individual users' software needs, then leverages that understanding to help stakeholders conduct business in a more efficient, effective, and systematic way. Expand
I/O performance on a massively parallel Cray XT3/XT4
TLDR
We present an overview of the current status of input/output (I/O) on the Cray XT line of supercomputers and provide guidance to application developers and users for achieving efficient I/O. Expand
Early evaluation of IBM BlueGene/P
TLDR
BlueGene/P is the second generation BlueGene architecture from IBM, succeeding BlueGene/L (BG/L). Expand
Community use of XALT in its first year in production
TLDR
XALT collects accurate, detailed, and continuous job-level and link-time data and stores that data in a database; all the data collection is transparent to the users. Expand
Early evaluation of IBM BlueGene/P
TLDR
BlueGene/P is the second generation BlueGene architecture from IBM, succeeding BlueGene/L (BG/L). Expand
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