Assefaw Gebremedhin, Selected Presentations
This list includes selected presentations that I prepapred and delivered;
presentations on works that I am involved in but were delivered by my co-authors
are not listed here.
2012:
-
Exploiting Sparsity in Automatic Differentiation
on Multicore Architectures,
6th International Conference on Automatic Differentiation (AD2012),
Fort Collins, Colorado, July 23--27, 2012.
-
Automatic Differentiation Algorithms for Hessian Computation,
6th International Conference on Automatic Differentiation (AD2012),
Fort Collins, Colorado, July 23--27, 2012. (Poster; prepared with Mu Wang)
-
Exploiting Sparsity in Derivative Computation,
SIAM Annual Meeting, Minneapolis, Minnesota, July 9--13, 2012.
Minisymposium on Automatic Differentiation and Nonlinear Optimization.
2011:
-
The ColPack Software Library for Graph Coloring to Enable
Derivative Computations,
7th International Congress on Industrial and Applied Mathematics (ICIAM 2011),
Vancouver, BC, Canada, July 18--22, 2011.
Minisymposium on Automatic Differentiation Software.
-
Multithreaded Graph Coloring Algorithms for Scientific Computing
,
7th International Congress on Industrial and Applied Mathematics (ICIAM 2011),
Vancouver, BC, Canada, July 18--22, 2011.
Minisymposium on Combinatorial Scientific Computing.
-
Graph Coloring Software for Sparse Derivative Computation and Beyond,
SIAM Conference on Computational Science and Engineering (CSE11),
Reno, Nevada, March 2011. (Poster)
-
Multithreaded Graph Coloring Algorithms for Scientific Computing
on Manycore Architectures,
Workshop on Manycore and Accelerator-based High Performance Scientific Computing,
International Center for Computational Science (ICCS), UC Berkeley/LBNL, January 2011.
2010:
-
Sparse Derivative Computation using Automatic Differentiation on
Multicore Architectures,
Cyber Infrastructure (CI) Days at Purdue,
Purdue University, December 8--9, 2010.(Poster)
-
Algorithms and Software for Sparse Derivative Computation and Beyond,
LANS Seminar Series,
Argonne National Laboratory, December 1, 2010.
-
Accurate and Efficient Computation of
Sparse Derivative Matrices,
Computational Science and Engineering Seminar Series,
Purdue University, November 3, 2010.
-
Graph Coloring Software for Computational Science
and Engineering,
Computer Science Research Institute, Sandia National Laboratories,
October 21, 2010.
-
Combinatorial Scientific Computing and Petascale Simulations Institute (CSCAPES):
Recent Progress,
SciDAC Conference 2010,
July 2010, Chattanooga, TN. (Poster; prepared together with CSCAPES colleagues)
2009:
-
Combinatorial Algorithms Enabling Scientific Computing:
Petascale Algorithms for Graph Coloring and Matching,
SuperComputing 2009, November 2009, Portland, Oregon. (E-Poster)
-
Ordering for Coloring and More,
The Fourth SIAM Workshop on
Combinatorial Scientific Computing (CSC09),
October 29--31, 2009, Monterey, CA.
-
Graph Coloring for Scientific Computing and Parallel Processing,
Department of Computer and Information science,
Indiana Unviversity-Purdue University Indianapolis (IUPUI),
October 9, 2009.
-
Efficient Computation of Jacobians and Hessians
using Automatic Differentiation,
PRISM Seminar Series,
Birck Nanotechnology Center,
Purdue University, March 13, 2009.
-
ColPack: A Graph Coloring Package for Sparse Derivative Computation,
SIAM Conference on Computational Science and Engineering (CSE09), March 2--6, 2009,
Miami, FL.
Minisymposium on AD and CSE.
-
The Enabling Power of Graph Coloring Algorithms in Automatic Differentiation,
Dagstuhl Seminar on Combinatorial Scientific Computing,
February 1--6, 2009, Germany.
2008:
-
Combinatorial Scientific Computing and Petascale Simulations (CSCAPES): Recent Progress,
SciDAC 2008 Conference, July 13--17, 2008. (Poster; prepared together with CSCAPES colleagues.)
-
Graph Coloring in Parallel Processing and Scientific Computing,
CSCAPES Workshop 2008,
June 10--13, 2008, Santa Fe, NM.
-
Efficient Computation of Sparse Hessians
Using Coloring and Automatic Differentiation,
SIAM Conference on Optimization (OP08), May 10--13, 2008, Boston, MA.
Minisymposium on combinatorics in AD.
-
A Scalable Algorithmic Framework for Parallel Graph Coloring
on Distributed Memory Computers,
SIAM Conference on Parallel Processing for Scientific Computing,
March 12--14, 2008, Atlanta, GA.
Minisymposium on parallel CSC.
2007:
-
Computing Jacobians and Hessians for Nonlinear PDEs,
SciDAC 2007 Conference,
June 2007, Boston, MA. (Poster; prepared together with Paul Hovland.)
-
Graph Coloring for Automatic Differentiation:
A project in the SciDAC Institute
Combinatorial Scientific Computing and
Petascale Simulations,
Research Expo 2007,
a joint event organized
by Eastern Virginia Medical school, Old Dominion University, and Norfolk State University,
Norfolk, VA, April 2007.(Poster)
-
Sparse Hessian Computation using Automatic Differentiation,
The Third SIAM Workshop on Combinatorial Scientific Computing,
Costa Mesa, CA, February 2007.
-
Combinatorial Scientific Computing and
Petascale Simulations:
A SciDAC Applied Math Institute,
SIAM Conference on Computational Science and Engineering,
Costa Mesa, CA, February 2007. (Poster; prepared together with CSCAPES colleagues.)
2006:
-
Combinatorial Algorithms Enabling Computational Sciences:
Tales from the Front,
SciDAC Conference 2006,
Denver, June 2006. (Poster; prepared together with CSCAPES colleagues.)
-
New Star and Acyclic Coloring Algorithms
with Application to Hessian Computation,
Research Expo 2006,
a joint event organized by Eastern Virginia Medical School,
Old Dominion University and Norfolk State University,
Norfolk, VA, April 2006. (Poster)
2005:
-
New Star and Acyclic Coloring Algorithms,
The Second Workshop on Combinatorial Scientific Computing (CSC05),
June 21 - 23, 2005, Toulouse, France. (Poster)
-
Graph Coloring for Computing Derivatives: A Unifying
Framework,
SIAM Conference on Optimization, May 15 - 19, 2005, Stockholm,
Sweden.
Minisymposium on automatic differentiation.
2004:
-
What Color is Your Jacobian? Graph Coloring for Computing
Derivatives,
2004 SIAM Annual Meeting, July 12-16, 2004, Portland, Oregon.
Minisymposium
on CSC.
-
Parallel Algorithms for Graph Coloring Problems in Numerical
Optimization,
SIAM Conference on Parallel Processing for Scientific Computing,
Feb 25-27, 2004, San Francisco, CA.
Minisymposium on CSC and Parallel Computing.
2003:
-
Practical Parallel Algorithms for Graph Coloring Problems in
Numerical Optimization,
Presentation of own work, PhD thesis defence,
Department of Informatics, University of Bergen, March 25, 2003.
-
Hypergraph Coloring: Algorithms and Applications,
Lecture on a given topic, PhD thesis defence,
Department of Informatics, University of Bergen, March 25, 2003.
2002 and earlier:
-
Parallel Distance-k Coloring Algorithms for Numerical
Optimization,
Euro-par 2002, August 27-30, 2002, Paderborn, Germany.
-
Parallel Graph Coloring Algorithms Using OpenMP,
First European Workshop on OpenMP (EWOMP'99), Sept 30 - Oct 1, 1999, Lund, Sweden.