|
|
 |
|
 |
School: University of Illinois, Urbana-Champaign Year in Fellowship: 3 Practicum: Sandia National Laboratories (2006) Lawrence Livermore National Laboratory (2007)
Field of Study: Computer Science
Contact:
idooley@isaacdooley.com
|
||
|
Summary of Research My research interests include working with adaptive runtime systems to improve the performance and scalability of scientific simulations. I have developed portions of the ParFUM framework and the SIERRA framework. Currently ParFUM is the only known parallel framework which supports asynchronous incremental mesh modification in parallel. Additionally, I am developing tools for predicting the performance of real-world applications on new not-yet-existing supercomputer designs. My approach is to use partial-execution on existing processors or cycle-accurate simulators to build a model for the execution time for sequential execution blocks. The model is then used to predict the new times for all sequential execution blocks. Various types of models are being investigated, as complicated real-world applications do not fit simple models that might work well for microbenchmarks. Publications Orion Lawlor, Hari Govind, Isaac Dooley, Michael Breitenfeld, and Laxmikant Kale; Performance Degradation in the Presence of Subnormal Floating-Point Values; in In OSIHPA Workshop, at PACT05, September 2005. Orion Lawlor, Sayantan Chakravorty, Terry Wilmarth, Nilesh Choudhury, Isaac Dooley, Gengbin Zheng, and Laxmikant Kale; ParFUM: A Parallel Framework for Unstructured Meshes for Scalable Dynamic Physics Applications; in Engineering with Computers, Journal, 2006. Isaac Dooley and Laxmikant Kale; Quantifying the Interference Caused by Subnormal Floating-Point Values; in In OSIHPA Workshop, at PACT06, September 2006. Isaac Dooley; Automated Source-to-Source Translations to Assist Parallel Programmers; in Master's Thesis, Department of Computer Science, University of Illinois 2006. Isaac Dooley, Sandhya Mangala, Laxmikant Kale and Philippe Geubelle; Parallel Simulations of Dynamic Fracture Using Extrinsic Cohesive Elements; in PPL Internal Technical Report, July 2007. |
|||||