# Publications

## Journals

- Jin, X., R. Ranjithan, and G. Mahinthakumar (2014). A monitoring network design procedure for 3-D groundwater source identification, Environmental Forensics, 15(1), 78-96.
- Jung, Y., G. Mahinthakumar, Ranji Ranjithan (2013). Development of a simultaneous search-based pilot point method for subsurface characterization, Stochastic Environmental Research and Risk Assessment, 27(8), 2003-201.
- Pradhan, A., and G. Mahinthakumar (2013). Finding All Pairs Shortest Path for a Large-scale Transportation Network using Parallel Floyd-Warshall and Parallel Dijkstra Algorithms, Journal of Computing in Civil Engineering, Volume 27, Issue 3, May 2013, 10.1061/(ASCE)CP.1943-5487.0000220.
- Mirghani, B., E. M. Zechman, R. Ranjithan, and G. Mahinthakumar (2012). Enhanced Simulation-Optimization Approach using Surrogate Modeling for Solving Inverse Problems, Journal of Environmental Forensics 13(4), 348-363, 2012.
- Kumar, J., E. D. Brill, G. Mahinthakumar, R. Ranjithan (2012). Contaminant source characterization in water distribution systems using binary signals, Journal of Hydroinformatics, In press: doi:10.2166/hydro.2012.073.
- Abdul, J.M., G. Mahinthakumar, S. Vigneswaran, and J. Kandasamy (2012). Removal of Metsulfuron Methyl by Fenton reagent, Journal of Industrial and Engineering Chemistry, Volume 18, Issue 1, 25 January 2012, Pages 137–144.
- Liu, L., E. M. Zechman, G. Mahinthakumar, S. R. Ranjithan (2012). Coupling of Logistic Regression Analysis and Local Search Methods for Characterization of Water Distribution System Contaminant Source Engineering Applications of Artificial Intelligence, Volume 25, Issue 2, March 2012, Pages 309–316.
- Liu, L., E. M. Zechman, G. Mahinthakumar, S. R. Ranjithan (2012). Identifying contaminant sources for water distribution systems using a hybrid method, Civil Engineering and Environmental Systems, Volume 29, Issue 2, 2012.
- Liu, L., S. R. Ranjithan, G. Mahinthakumar (2011). Contamination source identification in water distribution systems using an adaptive dynamic optimization procedure. Journal of Water Resources Planning and Management, 137(2), 183-192.
- Jung, Y., R. Ranjithan, and G. Mahinthakumar, (2011). Subsurface characterization using a D-optimality based pilot point method, In press, Journal of Hydroinformatics, 2011.
- Abdul, J.M., G. Mahinthakumar, S. Vigneswaran, and J. Kandasamy, (2011). Removal of Metsulfuron Methyl by Fenton reagent (Paper number: IE2010-291), In press, Journal of Industrial and Engineering Chemistry.
- Mirghani, B., Tryby, M., Ranjithan, R., Karonis, N. and Mahinthakumar, G. (2010). A Grid-Enabled Simulation-Optimization Framework for Environmental Characterization, Journal of Computing in Civil Engineering, 24(6), 488-498, NOV-DEC 2010.
- Ho, D. P., Senthilnanthan, M., Mohammad, J. A., Vigneswaran, S., Ngo, H. H., Mahinthakumar, G., Kandasamy, J., (2010). The Application of Photocatalytic Oxidation in Removing Pentachlorophenol from Contaminated Water, Journal of Advanced Oxidation Technologies, 13(1),pp 21-26, JAN 2010.
- Tryby, M.E., B. Mirghani, G. Mahinthakumar, and R. Ranjithan, A Solution Framework for Environmental Characterization Problems, The International Journal of High Performance Computing Applications, 24 (3), 265-283, August 2010, doi: 10.1177/1094342009350886.
- Jin, X., E.M. Zechman, R. Ranjithan, and G. Mahinthakumar, (2009). Genetic Algorithm-based Procedure for 3-D Source Identification at the Borden Emplacement Site, Journal of Hydroinformatics, Feb 2009, p 51-64, doi: 10.2166/hydro.2009.002.
- Praveen Vankayala, A. Sankarasubramanian, S. Ranji Ranjithan, G. Mahinthakumar (2009). Contaminant Source Identification in Water distribution networks under the conditions of Uncertainty, Journal of Environmental Forensics, 10(3), 2009.
- Mirghani, B., Tryby, M., Ranjithan, R. and Mahinthakumar, G., (2009). Computational Simulation-Optimization Approach for Solving Inverse Problems, Advances in Water Resources, 32 (2009), pp. 1373-1385, DOI : 10.1016/j.advwatres.2009.06.001.
- Mills, R.T., GE Hammond, P.C. Lichtner, V. Sripathi, G (Kumar) Mahinthakumar, and B. F. Smith, (2009). Modeling Subsurface Reactive Flows Using Leadership-Class Computing, Journal of Physics, 180 (2009) 012062 doi:10.1088/1742-6596/180/1/012062.
- Sreepathi, S., Mahinthakumar, G., E. Zechman, R. Ranjithan, D.E. Brill, X. Ma, and G. Von Laszewski (2007). Cyberinfrastructure for Contamination Source Characterization in Water Distribution Systems, Lecture Notes in Computer Science, 4487, p 1058-1065.
- Sayeed, M., G. Mahinthakumar, and N. Karonis (2007). Grid Enabled Solution of Groundwater Inverse Problems on the Teragrid Network, Journal of Simulation: Transactions of the Society for Modeling and Simulation International, 83(6), 437-448.
- Raghavachar, K., G. Mahinthakumar, P. A. Worley, E.M. Zechman, and R. Ranjithan, (2007). Parallel Performance Modeling using a Genetic Programming-based Error Correction Procedure, Journal of Simulation: Transactions of the Society for Modeling and Simulation International, 83(7), 515-527.
- Mahinthakumar, G., and M. Sayeed (2006). Reconstructing groundwater source release histories using hybrid optimization approaches, Journal of Environmental Forensics, 7(1), p 45-54, March 2006.
- Mahinthakumar, G., G. von Laszewski, R. Ranjithan, D.E. Brill, J. Uber, K. Harrison, S. Sreepathi, and E. Zechman, (2006). An Adaptive Cyberinfrastructure for Threat Management in Urban Water Distribution Systems, Lecture Notes in Computer Science, 3993, p 401-408.
- Mahinthakumar, G., G.R. Moline, and O.F. Webb (2005). An analysis of periodic tracers for subsurface characterization, Water Resources Research, 41(12), W12426, doi:10.1029/2005WR004190, 13 pages, December 2005.
- Sayeed, M. and G. Mahinthakumar (2005). An efficient parallel implementation of hybrid optimization approaches for solving groundwater inverse problems, ASCE Journal of Computing, 19(4):329-340, October 2005.
- Worley, P, J. Candy, L. Carrington, K. Huck, T. Kaiser, G. Mahinthakumar, A. Malony, D. Reed, P. Roth, S. Shan, S. Shande, A. Snavely, S. Sreepathi, and Y. Zhang (2005). Performance Analysis of GYRO: A tool evaluation, Journal of Physics, 16, 251-255, 2005.
- Mahinthakumar, G., and M. Sayeed (2005). Hybrid genetic algorithm - local search methods for solving groundwater source identification inverse problems, ASCE Journal of Water Resources Planning and Management, 131(1):45-57, January/February 2005.
- Gupta, A., Kripakaran, P., G. Mahinthakumar, and J.W. Baugh (2005). Genetic algorithm-based decision support for optimizing seismic response of secondary systems, ASCE Journal of Structural Engineering, 131(3):389-398, March 2005.
- Shin, W.T., X. Garanzuay, S. Yiacoumi, B. Gu, C. Tsouris, and G. Mahinthakumar (2004). Kinetics of soil ozonation: an experimental and numerical investigation, Journal of Contaminant Hydrology, 72 (1-4):227-243, August 2004.
- Narasimhan C., R.C. Ward, K.L. Kruse, M.N. Guddati, and G. Mahinthakumar (2004). A high resolution computer model for sound propagation in the human thorax based on the visible human data set, Computers in Biology and Medicine, 34(2):177-192, March 2004.
- Mahinthakumar, G., and F. Saied (2002). A hybrid MPI-OpenMP implementation of an implicit finite-element code on parallel architectures, International Journal of High Performance Computing Applications, 16(4):371-393, Winter 2002.
- Mahinthakumar, G., J.P. Gwo, G. R. Moline, O.F. Webb (1999). Subsurface biological activity zone detection using genetic search algorithms, ASCE Journal of Environmental Engineering, 125(12):1103-1112, December 1999.
- Painter, S. and G. Mahinthakumar (1999). Prediction uncertainty for tracer migration in random heterogeneities with multifractal character, Advances in Water Resources, 23:49-57, 1999.
- Saied, F., and G. Mahinthakumar (1998). Efficient parallel multigrid based solvers for large scale groundwater flow simulations, Computers Mathematics and Applications, 35(7):45-54, July 1998.
- Mackay, D., G. Mahinthakumar, and E. F. D'Azevedo (1998). A study of I/O in a parallel finite-element groundwater transport code, International Journal of High Performance Computing Applications, 12(3):307-319, Fall 1998.
- Mahinthakumar, G., and A. J. Valocchi (1992). Application of the connection machine to flow and transport problems in three-dimensional heterogeneous aquifers, Advances in Water Resources, 15(5):289-302, May1992.
- Cumberbatch, E., and G. Mahinthakumar (1991). Contact resistance for small contacts, IEEE Transactions on Electron Devices, 38(12):2669-2672, Dec 1991.
- Hoole, S.R.H, G. Mahinthakumar, H.W. Kim, J.T. Karunananthan, and H. Rigaud (1991). Software Model of an Alternator under Sudden Short Circuit, Journal of Applied Physics, 69(8):5038-5040, Apr 1991.
- Mahinthakumar, G., and S. R. H. Hoole (1990). A Parallelized element-by-element Jacobi conjugate gradients algorithm for field problems and a comparison with other schemes, Applied Electromagnetics in Materials, 1(1):15-28, Jul 1990.
- Hoole, S.R.H., and G. Mahinthakumar (1990). Parallelism in interactive operations in finite-element simulation, IEEE Transactions on Magnetics, 26(4):1252-1255, Jul 1990.
- Mahinthakumar, G., and S. R. H. Hoole (1990). A parallel conjugate gradients algorithm for finite element analysis of electromagnetic fields, Journal of Applied Physics, 67(9):5818-5820, May 1990.
- Mahinthakumar, G., and S. Vigneswaran (1990). Solute transport through saturated soils: a study of the physical non-equilibrium model, Water, Air and Soil Pollution, 51(1-2):161-180, May 1990.

## Conference Papers (Peer Reviewed)

- Sreepathi, S. and G. Mahinthakumar, (2012). Optimus: A Parallel Optimization Framework With Topology Aware PSO and Applications, 2012 SC COMPANION: HIGH PERFORMANCE COMPUTING, NETWORKING, STORAGE AND ANALYSIS (SCC), 1524-1525, 2012.
- Sreepathi, S., G.E. Hammond, R.T. Mills, and G. Mahinthakumar (2011). A scalable two-phase parallel I/O library with application to a large scale subsurface simulator, IEEE/ACM Supercomputing 2011, Seattle, WA, November 12-18, 2011.
- Sripathi, V., Glenn E. Hammond, G. (Kumar) Mahinthakumar, Richard T. Mills, Patrick H. Worley and Peter C. Lichtner (2009). Performance Analysis and Optimization of Parallel I/O in a large scale groundwater application on the Cray XT5, Supercomputing 2009, Portland, Oregon, Nov 12-16.
- Von Laszewski G (von Laszewski, Gregor), Younge A (Younge, Andrew), He X (He, Xi), Mahinthakumar K (Mahinthakumar, Kumar), Wang LZ (Wang, Lizhe), (2009). Experiment and Workflow Management Using Cyberaide Shell, CCGRID: 9TH IEEE INTERNATIONAL SYMPOSIUM ON CLUSTER COMPUTING AND THE GRID, 568-573.
- Mahinthakumar, G., M. Sayeed, N. Karonis, (2006). Grid enabled solution of groundwater inverse problems on the TeraGrid network, Proceedings of the High Performance Computing Symposium 2006, Society for Modeling and Simulation International, Apr 2-6, 2006 Huntsville, AL, ISBN 1-56555-304-7, p. 229-236.
- Raghavachar, K., G. Mahinthakumar, P. A. Worley, E.M. Zechman, and R. Ranjithan, (2006). Parallel Performance Modeling using a genetic programming based error correction procedure, Proceedings of the High Performance Computing Symposium 2006, Society for Modeling and Simulation International, Apr 2-6, Huntsville, AL, ISBN 1-56555-304-7, p. 221-226.
- Mirghani, B., M.E. Tryby, R. Ranjithan, and G. Mahinthakumar (2006). A grid-enabled simulation-optimization approach for solving groundwater characterization problems, Proceedings of the Joint International Conference on Computing and Decision Making in Civil and Building Engineering Proceeding, pp 2710-2719, Montréal, Canada, June 14-16, 2006.
- Tryby, M.E., B. Mirghani, N. Karonis, D. Baessler, R. Ranjithan, and G. Mahinthakumar (2005). LASSO: A grid-enabled simulation optimization framework, 5 pages, CD-ROM proceedings of Grid 2005 - 6th IEEE/ACM International Workshop on Grid Computing, November 13-14, Seattle, WA, 2005.
- Mirghani, B.Y., M. E. Tryby, D. A. Baessler, N. Karonis, R. Ranjithan, and K. G. Mahinthakumar (2005). Development and performance analysis of a simulation-optimization framework on Teragrid Linux clusters, 6th Linux Cluster Institute International Conference on Linux Clusters: The HPC Revolution 2005, 11 pages, Chapel-Hill, North Carolina, April 25-28, 2005.
- Mahinthakumar, G., M. Sayeed, J. Blondin, P. Worley, A. Mezzacappa, and R. Hix (2004). Performance Evaluation and Modeling of a Parallel Astrophysics Application, Proceedings of the High Performance Computing Symposium 2004, p. 27-33, Ed: Joerg Meyer, The Society for Modeling and Simulation International, ISBN 1-56555-278-4, Arlington, VA.
- Sayeed, M., and G. Mahinthakumar (2003). Hybrid optimization approaches for solving groundwater inverse problems in a parallel computing environment, Proceedings of ASCE World Water Congress 2003, 118 (15), 1-11, doi:10.1061/40685(2003)15, Philadelphia, PA, June 22-26, 2003.
- Mahinthakumar, G, M. Sayeed, D. Choi, L. Brieger, and N. Karonis (2003). Parallel hybrid optimization approaches for the solution of large scale groundwater inverse problems on the Teragrid, 8 pages, CD-ROM proceedings of IEEE/ACM Supercomputing 2003, November 18-23, Phoenix, AZ.
- Sayeed, M. and G. Mahinthakumar (2002). A multilevel parallelization scheme based on MPI communicators for solving groundwater inverse problems, High Performance Computing 2002, p. 137-144, Ed: A. Tentner, Society for Computer Simulation International, ISBN 1-56555-250-4, San Diego, CA.
- Mahinthakumar G., and J. P. Gwo (1999). Task parallel and data parallel computing for subsurface inverse characterization problems, High Performance Computing 1999, p. 217-223, Ed: A. M. Tentner, Society for Computer Simulation International, ISBN 1-56555-166-4, San Diego, CA.
- Mahinthakumar G., F. M. Hoffman, W. W. Hargrove, N. Karonis (1999). Multivariate geographic clustering in a metacomputing environment using Globus, CD-ROM proceedings, SC99: High Performance Networking and Computing, Portland, Oregon, November 13-19, 1999 (12 pages).
- Mahinthakumar, G., F. Saied, and A. J. Valocchi (1997). Comparison of some parallel Krylov solvers for large scale contaminant transport simulations, High Performance Computing 1997, p. 134-139, Ed: A. M. Tentner, Society for Computer Simulation International, ISBN: 1-56555-122-2, April 1997.
- Mahinthakumar, G. and F. Saied (1996). Distributed Memory Implementation of Multigrid Methods for Groundwater Flow problems with Rough Coefficients, (1996). High Performance Computing 1996, p. 51-57, Ed: A. M. Tentner, Society for Computer Simulation International, ISBN: 1-56555-096-X, April 1996.

## Conference Abstracts/Presentations Only

- Vamsi Sripathi, Glenn E. Hammond, G. (Kumar) Mahinthakumar, Richard T. Mills, Patrick H. Worley and Peter C. Lichtner (2009). Performance Analysis and Optimization of Parallel I/O in a large scale groundwater application on the Cray XT5, Poster Presentation, Supercomputing 2009, Portland, Oregon, Nov 12-16.
- Mirghani, B., M.E. Tryby, N. Karonis, D. Baessler, S. Ranjithan, and G. Mahinthakumar (2005). A grid-enabled simulation-optimization framework for environmental characterization problems, poster, IEEE/ACM Supercomputing 2005, Seattle, WA, November 12-18, 2005.
- Worley, P, J. Candy, L. Carrington, K. Huck, T. Kaiser, G. Mahinthakumar, A. Malony, D. Reed, P. Roth, S. Shan, S. Shande, A. Snavely, S. Sreepathi, and Y. Zhang (2005). Tools or No tools? : A performance evaluation case study, extended abstract, 2 pages, accepted for poster presentation (45% acceptance rate) at IEEE/ACM Supercomputing 2005, Seattle, WA, November 12-18, 2005.
- Kumar J., S. Sreepathi, E. D. Brill, R. Ranjithan, and G. Mahinthakumar (2010). Detection of leaks in water distribution system using routine water quality measurements, Proceedings of the ASCE/EWRI World Water & Environmental Resources Congress, Providence, RI, May 16-2, 2010, 8 pages.
- Kumar J., E. Downey Brill, G. Mahinthakumar, R. Ranjithan, (2010). Identification of reactive contaminant sources in a water distribution system under the conditions of data uncertainties, Proceedings of the ASCE/EWRI World Water & Environmental Resources Congress, Providence, RI, May 16-2, 2010, 10 pages.
- Liu, L, E. D. Brill, G. Mahinthakumar, and S. Ranjithan, A Hybrid Heuristic Search Approach for Contaminant Source Characterization, Proceedings of the ASCE/EWRI World Water & Environmental Resources Congress, Kansas City, Missouri, May 17-21, 2009, 10 pages.
- Kumar, J., E. D. Brill, G. Mahinthakumar, and S. Ranjithan, Characterizing Reactive Contaminant Sources in a Water Distribution System, Proceedings of the ASCE/EWRI World Water & Environmental Resources Congress, Kansas City, Missouri, May 17-21, 2009, 7 pages.
- Gregor von Laszewski, Andrew Younge, Xi He, Kumar Mahinthakumar, and Lizhe Wang, Experiment and Workflow Management Using Cyberaide Shell, 4th International Workshop on Workflow Systems in e-Science (WSES 09), Shangai, China, May 2009, 6 pages.
- Richard Tran Mills, Vamsi Sripathi, G. (Kumar) Mahinthakumar, Glenn E. Hammond, Peter C. Lichtner, Barry F. Smith, Experiences and Challenges Scaling PFLOTRAN, a PETSc-based Code for Subsurface Reactive Flow Simulations, Towards the Petascale on Cray XT Systems, Cray Users Group Meeting, May 2009, Atlanta, GA, 14 pages.
- Kruse, K.L., P.T. Williams, G.O. Allgood, R.C. Ward, S.S. Gleason, M.J. Paulusk, N. B. Munro, G. Mahinthakumar, C. Narasimhan, J.R. Hammersely, and D.E. Olson (2001). Flow simulation in 3D model of pig airways and connection to lung sounds, Proceedings of the SPIE 15th Annual Symposium of Aerospace/Defense Sensing, Simulation and Controls, Orlando, FL, April 16-21, 2001.
- Mahinthakumar G., and F. Saied (1999). Implementation and performance analysis of a parallel multi-component groundwater transport code, CD-ROM Proceedings of the 1999 SIAM Parallel Processing Meeting, San Antonio, TX, March 1999 (6 pages).
- Mahinthakumar, G. (1995). Effectiveness of pump-and-treat remediation in heterogeneous groundwater aquifers: a computational investigation using the Intel Paragon, Intel Supercomputer User Group Conference, Albuquerque, New Mexico, June 1995.
- Sripathi, V. , Mahinthakumar, G., Richard Tran Mills, Glenn E. Hammond, Peter C. Lichtner, Barry F. Smith, Performance analysis of a large scale groundwater simulator on the Cray XT and IBM BlueGene/P architectures, International Conference on Computational Sciences (ICCS 2009), Baton Rouge, LA, May 2009.
- Kumar, J., S. Ranjithan, D.E. Brill, G. Mahinthakumar, (2008). Source identification under multiple contamination source scenarios, poster presentation, ASCE World Water and Environmental Resources Congress 2008, Honolulu, HI, May 2008.
- Kumar, J., S. Ranjithan, J. Uber, E.M. Zechman, D.E. Brill, G. Mahinthakumar, (2008). Effect of network characteristics on source identification, poster presentation, ASCE World Water and Environmental Resources Congress 2008, Honolulu, HI, May 2008.
- Liu, L., S. Ranjithan, D.E. Brill, G. Mahinthakumar, (2008). Multinomial Logistic Regression for Contaminant Source Determination, oral presentation, ASCE World Water and Environmental Resources Congress 2008, Honolulu, HI, May 2008.
- Liu, L., S. Ranjithan, D.E. Brill, G. Mahinthakumar, (2008). Contaminant Source Characterization using Logistic Regression and Local Search Methods, poster presentation, ASCE World Water and Environmental Resources Congress 2008, Honolulu, HI, May 2008.
- Kumar, J., S. Ranjithan, D.E. Brill, G. Mahinthakumar, (2008). Source identification for contamination events involving reacting contaminants, oral presentation, ASCE World Water and Environmental Resources Congress 2008, Honolulu, HI, May 2008.
- Jung, Y., G. Mahinthakumar, and S. Ranjithan, (2007). Subsurface Characterization using Sensitivity based Pilot Point Methods, EOS transactions, AGU Fall Meeting Supplement, 88(52), H41E-0835.
- Zechman, E.M., D. E. Brill, F. Shang, J. Uber, G. Mahinthakumar, and S. Ranjithan, (2007). Real Time Characterization of Contaminant Source with Adaptive Water Demand Estimation in Water Distribution Systems, ASCE World Water and Environmental Resources Congress 2007, Tampa, FL, May 2007.
- Liu, L., J. Kumar, Zechman, E.M., D. E. Brill, F. Shang, J. Uber, G. Mahinthakumar, and S. Ranjithan, (2007). Coupling the Adaptive Dynamic Optimization Procedure with Pre-screening Techniques for Contaminant Source Characterization in Water Distribution Systems, ASCE World Water and Environmental Resources Congress 2007, Tampa, FL, May 2007.
- Kumar, J., Zechman, E.M., D. E. Brill, F. Shang, J. Uber, G. Mahinthakumar, and S. Ranjithan, (2007). Addressing Non-uniqueness in Source Characterization for Multiple Contaminant Source Scenarios in Water Distribution Systems, ASCE World Water and Environmental Resources Congress 2007, Tampa, FL, May 2007.
- Kumar, J., Zechman, E.M., J. Uber, G. Mahinthakumar, and S. Ranjithan, (2007). Evaluation of Non-Uniqueness in Contaminant Source Characterization Based on Sensors with Event Detection Methods, ASCE World Water and Environmental Resources Congress 2007, Tampa, FL, May 2007.
- Mirghani, B., G. Mahinthakumar, R. Ranjithan, (2007). Evolutionary Algorithms-Based Grid Computational Framework for Solving Groundwater Characterization Problems, ASCE World Water and Environmental Resources Congress 2007, Tampa, FL, May 2007.
- Zechman, E., Mirghani, B., S. Ranjithan, and G. Mahinthakumar (2006). Use of Surrogate Models for a Groundwater Pollutant Source Characterization Problem, ASCE World Water and Environmental Resources Congress 2006, Omaha, NE, May 21-25, 2006.
- Zechman, E.M., D. E. Brill, G. Mahinthakumar, and S. Ranjithan (2006). Addressing Non-uniqueness in a Water Distribution Contaminant Source Identification Problem, 8th Annual International Symposium on Water Distribution Systems Analysis, Cincinnati, Ohio, August 27-30, 2006.
- Liu, L., E. M. Zechman, E. D. Brill, G. Mahinthakumar, S. Ranjithan, and J. Uber (2006). Adaptive Contamination Source Identification in Water Distribution Systems Using an Evolutionary Algorithm-based Dynamic Optimization Procedure, 8th Annual International Symposium on Water Distribution Systems Analysis, Cincinnati, Ohio, August 27-30, 2006.
- Zechman, E., G. Mahinthakumar, and S. Ranjithan (2005). Investigation and demonstration of an evolutionary computation-based model correction procedure for a numerical simulation model, ASCE World Water and Environmental Resources Congress 2005, Anchorage, Alaska, May 15-19, 2005.
- Zechman, E., Mirghani, B., G. Mahinthakumar, and S. Ranjithan (2005). A genetic programming-based surrogate model development and its application to a groundwater source identification problem, ASCE World Water and Environmental Resources Congress 2005, Anchorage, Alaska, May 15-19, 2005.
- Xin, J. and K. G. Mahinthakumar (2004). 3-D Source Identification of Borden Emplacement Site, Eos Transactions, American Geophysical Union Fall meeting supplement, 85(47), H53A-1233, 2004.
- Kripakaran P., J. Baugh, A. Gupta, and G. Mahinthakumar (2003). New GA approaches for pipe support optimization, 2003 ASCE Structures Congress, May 29-31, Seattle, WA, 2003.
- Narasimhan, C., G. Mahinthakumar, R.C. Ward, and K.L. Kruse (2001). High-resolution simulations for acoustic wave propagation in the human lung, presentated at the Annual Biomedical Engineering Society meeting, Durham, North Carolina, October 2001.
- Mahinthakumar, G. and F. Saied (2000). A hybrid MPI/Open-MP implementation of an implicit finite element code, presented at High Performance Computing Symposium, Advanced Simulation Technologies Conference, Washington D.C., April 16-20, 2000.
- Mahinthakumar, G., C. Tebes-Stevens, A. J. Valocchi, and F. Saied (1999). 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 A. J. Valocchi (1996). Pump-and-treat remediation analysis using the Intel Paragon supercomputer, EOS Transactions, American Geophysical Union Fall Meeting, Vol. 76, No. 46, p. F247, San Francisco, California, Nov 1996.
- Mahinthakumar, G., R.Sharpley, A. Kaulgud, and S. Johnson (1997). Groundwater remediation experiments using interactive computational steering on the Intel Paragon, Intel Supercomputer User's Group Conference, Alberquerque, NM, Jun 18-20, 1997.
- Mahinthakumar, G. and A. J. Valocchi (1995). Impact of nonideal transport upon the effectiveness of pump-and-treat remediation, EOS Transactions, American Geophysical Union Fall Meeting, Vol. 76, No. 46, p. F247, San Francisco, California, Dec 1995.
- Mahinthakumar, G., S. Vigneswaran, and J. S. Chang (1991). Solute transport through unsaturated soils: an equilibrium adsorption model, Presented at the International Conference on Computer Applications in Water Resources, Tamsui, Taiwan, Jul 1991.
- Mahinthakumar, G. (1992). Numerical simulation of 3-D groundwater flow and contaminant transport on supercomputers, Presented at the Joint Meeting of Illinois Groundwater Association and American Institute of Professional Geologists, Starved Rock Sate Park, Illinois, Oct 1992.
- Mahinthakumar, G. (1991). Application of the Connection Machine to flow and transport problems in groundwater hydrology, Presented at the Tenth Parallel Circus, Oak Ridge, Tennessee, Oct 1991.

## Reports/Theses

- Mahinthakumar, G., (1998). PGREM3D: Parallel groundwater transport and remediation codes, Users Guide, April 1998, updated 1999.
- Mahinthakumar, G., and F. Saied, (1999). Implementation and Performance Analysis of a Parallel Multicomponent Groundwater Transport Code, CD-ROM proccedings of the 1999 SIAM Parallel Processing Meeting, March 22-25, San Antonio, TX.
- Mahinthakumar, G., Impact of Nonideal Transport Upon the Effectiveness of Pump-and-Treat Groundwater Remediation: A Computational Investigation, Ph.D. Thesis, University of Illinois at Urbana-Champaign, May 1995.
- Mahinthakumar, G. and O. R. West, (1997). High resolution numerical experiments in support of the ISCOR experiment at Portsmouth, Unpublished Report submitted to PORTS, Nov 1997.
- Mahinthakumar, G., Solute Transport through Saturated and Unsaturated Soils: Mathematical Models, Master's Thesis, Asian Institute of Technology, Dec 1988.