G. Mahinthakumar's homepage

v32 - 1/4/99

G. "Kumar" Mahinthakumar is a research staff member at CCS. His research interests are in parallel numerical algorithms, groundwater transport and remediation, parallel and distributed computing, and parallel sparse matrix solvers. He also provides research support in parallel and distributed computing, especially for environmental applications. Resume

Education

Ph.D., Civil Engineering, University of Illinois at Urbana-Champaign, IL, May 1995.

MS, Applied Mathematics, Claremont Graduate School, CA, May 1990.

MEng., Environmental Engineering, Asian Institute of Technology, Thailand, Dec 1988.

BSc.(Eng.), Civil Engineering, Unviersity of Peradeniya, Sri Lanka, Dec 1985.

Current Activities/Areas of Research

• Distributed computing applications support
  
• PGREM3D code development
  
• Data parallel and task parallel computing on distributed memory parallel architectures
  
• Parallel solvers for groundwater flow and transport problems
  
• Large scale groundwater simulations for field applications
  
• Computational steering for groundwater remediation experiments
  
• Impact of subsurface heterogeneity on groundwater remediation
  
• Chemical waveforms for subsurface detection
  
• Inverse problems for subsurface detection using genetic algorithms
  
• Multifractal heterogeneity analysis using Monte-Carlo simulations

Recent Papers/Abstracts:

• Mahinthakumar G., Gwo J.P., Moline G.R., Webb O. F., (1999). Subsurface biological activity zone detection using genetic search algorithms, accepted for publication the ASCE Journal of Environmental Engineering. (submitted Sep 1998, accepted Jan 1999).
• Mahinthakumar G., Hoffman F.M., Hargrove W.W., Karonis, N., Multivariate Geographic Clustering in a Metacomputing Environment Using Globus, Accepted for presentation at SC99: High Performance Networking and Computing, Portland, Oregon, November 13-19, 1999.
• Mackay, D., G. Mahinthakumar, and E. F. D'Azevedo (1998). A study of I/O in a parallel finite-element groundwater transport code, Int. J. of High Performance Computing Applications, 12(3), Fall 1998, p. 307-319.
• Saied, F., and G. Mahinthakumar (1998). Efficient Parallel Multigrid Based Solvers for Large Scale Groundwater Flow Simulations, Computers Math. Applic., Vol. 35, No. 7, p. 45-54, 1998.
• Painter, S. and G. Mahinthakumar, (1997). Prediction Uncertainty for Tracer Migration in Random Heterogeneities with Multifractal Character, in press, Int J. Advances in Water Resources (Submitted Dec 1997, Accepted May 1998).
• Mahinthakumar, G., Caroline Tebes-Stevens, Albert J. Valocchi, and Faisal Saied, Efficient solution of large scale multicomponent transport systems, 1999 SIAM Meeting on Computational Issues in Geosciences (GS99), San Antonio, Texas, March 1999.
• Mahinthakumar G., and Saied F. (1999). Implementation and Performance Analysis of a Parallel Multicomponent Groundwater Transport Code, Proceedings of the 1999 SIAM Parallel Processing Meeting, San Antonio, TX, March 1999.
• Mahinthakumar G., and Gwo, J.P., (1999), Task parallel and data parallel computing for subsurface inverse characterization problems (ps | pdf), Proceedings of the 1999 High Performance Computing Symposium, San Diego, CA, April 1999.

Publications and Presentations

Kumar (right) discussing groundwater applications with Jack Gwo. Brief bio.

G. "Kumar" Mahinthakumar               email:  kumar@ornl.gov
Center for Computational Sciences      phone:  (423)241-5628
P.O. Box 2008, MS 6203                 fax:    (423)241-2850
Oak Ridge TN 37831

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