Jaideep Ray
Curriculum Vitae


Advanced Software Research and Development, MS 9159
PO Box 969, Sandia National Laboratories,
Livermore, CA 94551.		 Phone 925 - 294 - 3638
email : jairay [at] ca [dot] sandia [dot] gov
URL : http://www.caip.rutgers.edu/~jaray/
EDUCATION Ph.D. in Mech. & Aero. Engg (October 1999 )
Rutgers, The State University of New Jersey, New Brunswick, NJ
Advisor: Prof. N. J. Zabusky
Dissertation: ``Shock interactions with density inhomogeneities :
Models and scaling laws for circulation deposition and instabillity
growth rates.''

M.S. in Mech. & Aero. Engg. (May 1997 )
Rutgers, The State University of New Jersey, New Brunswick, NJ
Advisor: Prof. N. J. Zabusky
Thesis: ``Circulation deposition and interface growth rate in Richtmyer-Meshkov environments : Scaling laws and reduced models.''

B.S. in Aerospace Engineering (June 1992 )
Indian Institute of Technology, Kharagpur, India
Advisor : Prof. S. Narayanan.
Thesis: ``A computational study of potential transonic flows.''
TEACHING

Mech. & Aero. Engg., Rutgers, The State University of New Jersey,
Piscataway, NJ
Teaching Assistant September 1997 - June 1998
Level Taught : Senior
  • Fall 97 : Instructor, Senior Lab I. Designed, set-up and conducted experiments for senior undergraduate students on diverse topics (from material testing to thermodynamic analysis of steam turbines). Also graded the senior undergraduate course in aerodynamics; delivered lectures on flight stability.
  • Spring 98 : Instructor, Senior Lab II. Designed, set-up and conducted experiments for senior undergraduate students, mainly in heat transfer and fluid flow.

RESEARCH Distributed Computing Research, Sandia National Laboratories,
Livermore, CA
Member of Technical Staff, Senior(2000), Principal(2004)
Project : Development of various CCA compliant components for a 3D adaptive-mesh reacting flow solver.
  • Higher-order projection schemes for low Mach number schemes
  • Higher-order temporal and spatial interpolations for patched adaptive grid.
  • Linear solvers on patched adaptive grids.


Reacting Flow Research, Sandia National Laboratories,
Livermore CA.
Limited Term Employee July 1999 - July 2000
Project : Effect of detailed chemisty on unsteady flame response.

  • Investigation of detailed chemistry on flame response in methane-air flames.
  • Incorporation on stiff chemisty integrator in a low Mach number, Lagrangian-Eulerian AMR Navier-Stokes solver.
Mech. & Aero. Engg., Rutgers, The State University of New Jersey,
Piscataway, NJ
Graduate Assistant , Graduate Fellow, Teaching Assistant. June 1993 - June 1999
Project: Shock interactions with heavy elliptical gaseous cylinders.
  • Euler simulations of shock-generated instabilities at density-stratified interfaces. Analytical modeling of circulation deposition at such interfaces. Studies of shock refraction.
  • Analytical modeling of growth rates of Richtmyer-Meshkov instabilities.
  • MPI-parallelized development of a 3D Euler code..
Scientific Computing Group, Los Alamos National Labs, Los Alamos,NM
Summer Graduate Research Assistant Summer 96 & Summer 97
Project: Performance issues of scientific codes on cache-based multi-processors.
  • Studied data placement and cache-reuse in sparse system problems (coded an adaptive and parallel Poisson solver using P_SPARSELIB [Saad; U. of Minnesota] on the LANL ACL Origin2000).
  • Ported a Monte Carlo neutronics code from T3D shmem to MPI.
  • Benchmarked the T3D, TurboLaser, Power Challenge & RS6000 cluster.
  • Multithreaded a Fortran (X3H5A standard) heat diffusion code using directives.
SKILLS
  • Cross-disciplinary training in theoretical and computational fluid dynamics, parallel programming and performance related (computer) architectural and data structure issues. Some experience with reacting flows and adaptive mesh refinement.

  • Excellent writing, public speaking and communication skills

  • Experienced with a variety of parallel computing paradigms (MPI, shmem, PVM & OpenMP-like directives), platforms (T3D, T3E, Origin2000, SP2, C90 & workstation clusters) and operating systems (Unix, Linux, Unicos & Windows NT).

  • Strong programming skills (C++, C, Fortran77/90, HTML, Unix shell)

  • Skilled in the use of typical fluid flow visualization software e.g. AVS, Tecplot, etc
BOOKS AND JOURNALS

N. Trebon, A. Morris, J. Ray, S. Shende and A. D. Malony, "Performance modeling using component assemblies", Concurrency and Computation: Practice and Experience, 2007, 19(5):685-696.

J. Ray, C. A. Kennedy, S. Lefantzi and H. N. Najm, "Using high-order methods on adaptively refined block-structured meshes - derivatives, interpolations, and filters", SIAM Journal on Scientific Computing, 2007, 29(1):139-181. An older version is available as Sandia Technical Report SAND2005-7981 here .

J. C. Lee, H. N. Najm, S. Lefantzi, J. Ray and M. Frenklach, M. Valorani and D. Goussis, "A CSP and Tabulation Based Adaptive Chemistry Model", Combustion Theory and Modeling, 2007, 11(1):73-102.

David E. Bernholdt, Benjamin A. Allan, Robert Armstrong and Felipe Bertrand, Kenneth Chiu, Tamara L. Dahlgren, Kostadin Damevski, Wael R. Elwasif, Thomas G. W. Epperly, Madhusudhan Govindaraju, Daniel S. Katz, James A. Kohl, Manoj Krishnan, Gary Kumfert, J. Walter Larson, Sophia Lefantzi, Michael J. Lewis, Allen D. Malony, Lois C. McInnes, Jarek Nieplocha, Boyana Norris, Steven G. Parker, Jaideep Ray, Sameer Shende, Theresa L. Windus, and Shujia Zhou, "A Component Architecture for High-Performance Scientific Computing", International Journal of High-Performance Computing Application, 2006, 20:162-202.

J. Steensland and J. Ray, "A Partitioner-Centric Model for SAMR Partitioning Trade-Off Optimization : Part I," International Journal of High Performance Computing Applications, 2005, 19(4):409-422.

L. C. McInnes, B. A. Allan, R. Armstrong, S. J. Benson, D. E. Bernholdt, T. L. Dahlgren, L. F. Diachin, M. Krishnan, J. A. Kohl, J. W. Larson, S. Lefantzi, J. Nieplocha, B. Norris, S. G. Parker, J. Ray and S. Zhou, "Parallel PDE-Based Simulations Using the Common Component Architecture." Chapter in Numerical Solution of Partial Differential Equations on Parallel Computers, 2005, Editors: A. M. Bruaset, P. Bjorstad, and A. Tveito, Lecture Notes in Computational Science and Engg., (51), Springer.

Sophia Lefantzi, Jaideep Ray, Christopher A. Kennedy and Habib Najm, "A Component-based Toolkit for Simulating Reacting Flows with High Order Spatial Discretizations on Structured Adaptively Refined Meshes." Progress in Computational Fluid Dynamics, 2005, 5(6):298-315.

J. Ray and L. Jameson, "Estimation of Shock Induced Vorticity on Irregular Gaseous Interfaces : A Wavelet-based Approach." Shock Waves : An International Journal, 2005, 14(3):147-160.

A. Malony, S. Shende, N. Trebon, J. Ray, R. Armstrong, C. Rasmussen and M. Sottile, "Performance Technology for Parallel and Distributed Component Software. " Concurrency and Computation: Practice and Experience, 2005, 17(2-4):117-141.

C. C. Douglas, J. Hu, J. Ray, D. T. Thorn, and R. Tuminaro, "Cache aware multigrid for variable coefficient elliptic problems on adaptive mesh refinement hierarchies, " Numerical Linear Algebra and Applications , 11:173-187, 2004.

Benjamin A. Allan, Robert C. Armstrong, Alicia P. Wolfe, Jaideep Ray, David E. Bernholdt and James A. Kohl, "The CCA Core Specification in a Distributed Memory SPMD Framework," Concurrency : Practice and Experience , 14(5):323-345, 2002.

J. Ray, H. N. Najm, R. B. Milne, K. D. Devine and S. Kempka, "Triple Flame Structure and Dynamics at the Stabilization Point of an Unsteady Lifted Jet Diffusion Flame, " Proc. Combust. Inst., 2000, 28(1):219-226.

A. Kotelnikov, J. Ray and N. J. Zabusky, "Vortex morphologies on reaccelerated interfaces : visualization, quantification and modeling of one- and two-mode compressible and incompressible environments," Phys. Flds., 2000, 12(12):3245-3264.

J. Ray, R. Samtaney and N. J. Zabusky, "Shock competition and a model for circulation deposition in shock interactions with heavy prolate cylinders," Phys. Flds, 2000, 12(3):707-716.

R. Samtaney, J. Ray and N. J. Zabusky, "Baroclinic circulation generation on shock accelerated slow/fast gas interfaces," Phys. Flds., 1998, 10(5):1271-1230


INVITED TALKS "Vorticity in shock interactions with density inhomogeneities.'' a talk presented to the Hydrodyamics Group, X Division, LANL, September 1998.
CONFERENCES

J. Ray, Y.~M. Marzouk M. Kraus and P. Fast, "Characterizing bioterrorist attacks from a short time series of diagnosed patient data - A Bayesian approach", Proceedings of the Second Conference on Quantitative Methods in Defense and National Security, George Mason University, Fairfax, VA, February 7-8, 2007. Download here .

S. Chandra, M. Parashar and J. Ray, "Analyzing the Impact of Computational Heterogeneity on Runtime Performance of Parallel Scientific Components", Proceedings of the 15th High Performance Computing Symposium (HPC-07), SCS Spring Simulation Multiconference, Norfolk, VA, USA, March 2007.

G. Kumfert, D. E. Bernholdt, T. G. W. Epperly, J. A. Kohl, L. C. McInnes, S. Parker and J. Ray, "How the Common Component Architecture Advances Computational Science" Journal of Physics: Conference Series, 2006, 46:479-494. Download here .

H. N. Najm, J. Ray, M. Valorani, F. Creta and D. A. Goussis, "A Computational Facility for Reacting Flow Science" Journal of Physics: Conference Series, 2006, 46:53-58. Download here .

J. Ray, Y.M. Marzouk, H.N. Najm, M. Kraus and P. Fast, "Estimating Bioterror Attacks from Patient Data : A Bayesian Approach", 2006 Proceedings of American Statistical Association. Presented at the First Annual Conference on Quantitative Methods and Statistical Applications in Defense and National Security, February 15-16, 2006, RAND Corporation, Santa Monica, CA, USA. Download here .

Jaideep Ray, C. Kennedy, S Lefantzi, and Habib Najm, "High-order Methods on Block-structured Adaptive Meshes - Discretizations, Interpolations and Filters", Minisymposium on Flow Simulations and Algorithms on Block-Structured Adaptively Refined Meshes, SIAM Conference on Numerical Combustion, April 23-26, 2006, Granada, Spain.

Sumir Chandra, Manish Parashar and Jaideep Ray, "Dynamic Structured Partitioning of Parallel Scientific Applications with Pointwise Varying Workloads", Proceedings of the International Parallel and Distributed Processing Symposium, April 24-28, 2006. Rhodes, Greece.

Benjamin A. Allan and Jaideep Ray, "The scalability impact of a component-based software engineering framework on a growing SAMR toolkit: a case study," Parallel Computational Fluid Dynamics May 25-27, 2005, College Park, MD. Download extended abstract here

Jaideep Ray, C. Kennedy, J. Steensland and H. Najm, "Advanced Algorithms for Computations on Block-Structured Adaptively Refined Meshes," Journal of Physics: Conference Series , 2005, 16:113-118. Download here

N. Trebon, A. Morris, J. Ray, S. Shende and A. Malony, "Performance Modeling of Component Assemblies with TAU", Compframe 2005 June 22-24, 2005, Atlanta, GA. Download here.

J. C. Lee, H. N. Najm, S. Lefantzi, J. Ray, M. Frenklach, M. Valorani and D. A. Goussis, "An Adaptive Reduced--Order Chemical Model", 20th International Colloquium on the Dynamics of Explosions and Reactive Systems , July 31st to August 5th, 2005, Montreal, Canada.

Johan Steensland and Jaideep Ray, "A Partitioner-Centric Model for SAMR Partitioning Trade-Off Optimization: Part II", In the proceedings of The 6th International Workshop on High Performance Scientific and Engineering Computing (HPSEC-04), held in conjunction with The 2004 International Conference On Parallel Processing (ICPP-04), in Montreal, Canada, Aug. 15-18, 2004.

J.C. Lee, H.N. Najm, S. Lefantzi, J. Ray, M. Frenklach, M. Valorani, and D.A. Goussis, "On chain branching and its role in homogeneous ignition and premixed flame propagation", Third MIT Conference on Computational Fluid and Solid Mechanics, June 14-17, 2005, Cambridge, MA.

S. Lefantzi, J. Ray, B. A. Allan and H. N. Najm, "Computational Facility for Reacting Flow Science: Functionality, Reusability and Interoperability", Minisymposium on Numerical Software for Solving Problems in Computational Science and Engineering, SIAM Conference on Computational Science and Engineering, Feb 12-15, 2005, Orlando, FL.

Boyana Norris, Jaideep Ray, Robert C. Armstrong, Lois C. McInnes, David E. Bernholdt, Wael R. Elwasif, Allen D. Malony, Sameer Shende, "Computational Quality of Service for Scientific Components", Component-Based Software Engineering, 7th International Symposium, CBSE 2004, Edinburgh, UK, May 24-25, 2004, Proceedings, Lecture Notes in Computer Science , 3054, Pg 264-271. Springer.

J. Ray and N. Trebon and S. Shende and R. C. Armstrong and A. Malony, "Performance Measurement and Modeling of Component Applications in a High Performance Computing Environment : A Case Study", 18th International Parallel and Distributed Computing Symposium , April 26--30, 2004, Santa Fe, NM. Paper distributed by IEEE CS CD-ROM, also here .

Sophia Lefantzi, Christopher A. Kennedy, Jaideep Ray and Habib N. Najm, "A study of the effect of higher order spatial discretizations in SAMR (Structured Adaptive Mesh Refinement) simulations", Proceedings of the Fall Meeting of the Western States Section of the The Combustion Institute, October 20--21, 2003, Los Angeles, CA. Paper distributed CD-ROM, also here

Johan Steensland and Jaideep Ray, "A Partitioner-Centric Model for SAMR Part itioning Trade-Off Optimization: Part I", Proceedings of the 4th Annual Symp osium of the Los Alamos Computer Science Institute (LACSI04)

Johan Steensland and Jaideep Ray, "A Heuristic Re-Mapping Algorithm Reducing Inter-Level Communication in SAMR Applications"Proceedings of the 15th IASTED International Conference Parallel and Distributed Computing and Systems 2003 (PDCS03) .

Sophia Lefantzi and Jaideep Ray, "A Component-based Scientific Toolkit for Reacting Flows", Proceedings of the Second MIT Conference on Computational Fluid and Solid Mechanics, Boston, Mass. 2003.

S. Lefantzi, J. Ray and H. N. Najm, "Using the Common Component Architecture to Design High Performance Scientific Simulation Codes," Proceedings of the International Parallel and Distributed Processing Symposium, April 2003, Nice, France. Distributed via a conference CD; also here

R.B. McCoy, H.N. Najm and J. Ray, "Shear layer effect on edge flame structure in a non-premixed methane-air flame" Proceedings of Third Joint Meeting of the U.S. Sections of the Combustion Institute Chicago, USA, March 2003. Paper discributed via Comb. Inst. CD, also here

Jaideep Ray, C.A. Kennedy, Sophia Lefantzi and H.N. Najm, "High-order spatial discretizations and extended stability methods for reacting flows on structured adaptively refined meshes" Proceedings of Third Joint Meeting of the U.S. Sections of the Combustion Institute Chicago, USA, March 2003. Paper discributed via Comb. Inst. CD, also here

J. Ray, S.Lefantzi and H. Najm, " Using the Common Component Architecture to Design Simulation Codes, " presented at SIAM, Computational Science Conference, San Diego, CA, January 2003. Download presentation here.

"Fast, Adaptively Refined Computational Elements in 3D," presented at 2002 International Conference on Computational Science, April 21th to 24th, Amsterdam, Netherlands.

"Edge flame structure in non-premixed methane-air jet," at the Western States Symposium of the Combustion Institute, University of California, La Jolla, CA, March 25th and 26th, 2002 (paper distributed via Comb. Inst. CD, also here ).

"Ignition front structure in a methane-air jet," presented at the Second Joint Meeting of the U.S. Section of the Combustion Institute, Oakland, CA. March 25th to 28th, 2001 (paper distributed via Comb. Inst. CD, also here ).

"Adaptive Lagrangian-Eulerian Reacting Flow Modeling" presented at the Second SIAM Numerical Combustion Meeting Amelia Island, FL. February 2000.

N. J. Zabusky, S. Zeng, J. Ray, and R. Samtaney, "Vortical Projectiles from Shock-Bubble Interactions," Proceedings of the Sixth International Workshop on the Physics of Compressible Turbulent Mixing. Ed. G. Jourdan and L. Houas. June 1997, Universite de Provence, Marseilles. Imprimerie Caractere.

R. Samtaney, J. Ray and N. J. Zabusky, "Baroclinic circulation generation on shock accelerated slow/fast gas interfaces," Proceedings of the Sixth International Workshop on the Physics of Compressible Turbulent Mixing. Ed. G. Jourdan and L. Houas. June 1997, Universite de Provence, Marseilles. Imprimerie Caractere.

J. Ray, N. J. Zabusky and R. Samtaney, "Vortex methods for early and intermediate time Richtmyer-Meshkov environments," Proceedings of the 20th International Symposium on Shock Waves, Vol I. Ed. B. Sturtevant, H. G. Hornung and J. E. Shepherd. 1996, World Scientific Publishing Co. Pte. Ltd. Singapore.

"Analytical and numerical models for a harmonic perturbation of the Richtmyer-Meshkov instability in the linear and non-linear epochs," presented at The 49th Annual Meeting of the Division of Fluid Dynamics, American Physical Society, Syracuse, NY, 24-26th November, 1996. (abstract in Bull. Amer. Phys. Soc., vol. 41, no. 9, Nov. 1996).

"Escaped vortex projectiles from shock wave interactions with elliptical and ellipsoidal clouds," presented at The Joint Meeting of the American Physical Society and the American Association of Physics Teachers with The Canadian Association of Physicists and the Sociedad Mexicana de Fisica., Washington, D.C., 18-21st April, 1997. (abstract in Bull. Amer. Phys. Soc., vol. 42, no. 2, April. 1997).

"Shock competition and circulation deposition in shock interactions with heavy prolate cylinders" presented at The 51st Annual Meeting of the Division of Fluid Dynamics, American Physical Society, Philadelphia, PA, 22-24th November, 1998. (abstract in Bull. Amer. Phys. Soc., vol. 43, Nov. 1998).

"The Richtmyer-Meshkov Instability with Reshock," presented at The 51st Annual Meeting of the Division of Fluid Dynamics, American Physical Society, Philadelphia, PA, 22-24th November, 1998. (abstract in Bull. Amer. Phys. Soc., vol. 43, Nov. 1998).

REFERENCES Available upon request.