X. Cai, H. P. Langtangen, and H. Moe. On the performance of the Python programming language for serial and parallel scientific computations, Scientific Programming 13(1):31-56, 2005.

X. Cai, G. K. Pedersen, and H. P. Langtangen. A parallel multi-subdomain strategy for solving Boussinesq water wave equations, Advances in Water Resources 28(3):215-233, 2005.

X. Cai and H. P. Langtangen. Parallelization of PDE codes, Talk at the CMA Workshop on High-Performance Computing in Physics, November 4, Oslo, Norway, 2005.

X. Cai, G. K. Pedersen, and H. P. Langtangen. Solving Boussinesq water wave equations on parallel computers, Talk at the International Workshop on Numerical Ocean Modeling, Oslo, Norway, 2005.

X. Cai, G. K. Pedersen, H. P. Langtangen, and S. Glimsdal. Parallel simulation of tsunamis using a hybrid software approach, Talk at ParCo 2005 Conference, 13 - 16 September, Malaga, Spain, 2005.

M. Sosonkina, Y. Saad, and X. Cai. Using the Parallel Algebraic Recursive Multilevel Solver in Modern Physical Applications, Future Generation of Computer Systems 20(3):489--500, 2004.

X. Cai and M. Sosonkina. A Numerical Study of Some Parallel Algebraic Preconditioners, In: Parallel and Distributed Scientific and Engineering Computing: Practice and Experience, ed. by Y. Pan and L. T. Yang. Nova Science Publishers, Inc., pp. 9--21, 2004.

X. Cai, G. Lines, and A. Tveito. Parallel Solution of the Bidomain Equations with High Resolutions, In: Parallel Computing: Software Technology, Algorithms, Architectures & Applications, ed. by G. R. Joubert and W. E. Nagel and F. J. Peters and W. V. Walter. Elsevier Science, pp. 837--844, 2004.

X. Cai. Using Linux Clusters for Full-Scale Simulation of Cardiac Electrophysiology, Invited talk at the fifth annual workshop on Linux Clusters for Super Computing, October 18-21, 2004, Linköping, Sweden, 2004.

P. Jeberg, X. Cai, H. P. Langtangen, and H. Holm. A flexible architecture for welding simulators used in weld planning, In: Proceedings of International Conference on Productive Welding in Industrial Applications, Lappenranta, Finland, 2003.

X. Cai. Overlapping Domain Decomposition Methods, In: Advanced Topics in Computational Partial Differential Equations -- Numerical Methods and Diffpack Programming, ed. by H. P. Langtangen and A. Tveito. Springer-Verlag, pp. 57-95, 2003.

X. Cai, E. Acklam, H. P. Langtangen, and A. Tveito. Parallel Computing, In: Advanced Topics in Computational Partial Differential Equations -- Numerical Methods and Diffpack Programming, ed. by H. P. Langtangen and A. Tveito. Springer-Verlag, pp. 1-55. Lecture Notes in Computational Science and Engineering, 2003.

X. Cai, A. M. Bruaset, H. P. Langtangen, G. T. Lines, K. Samuelsson, W. Shen, A. Tveito, and G. Zumbusch. Performance Modeling of PDE Solvers, In: Advanced Topics in Computational Partial Differential Equations -- Numerical Methods and Diffpack Programming, ed. by H. P. Langtangen and A. Tveito. Springer-Verlag, pp. 361-399. Lecture Notes in Computational Science and Engineering, 2003.

X. Cai and M. Sosonkina. A numerical study of some parallel algebraic preconditioners, Talk at the IPDPS 2003 Conference, April 22-26, 2003, Nice, France, 2003.

X. Cai, G. T. Lines, and A. Tveito. Toward extremely high-resolution simulation of human heart, Talk at the ParCo 2003 Conference, 2 - 5 September 2003, Dresden, Germany, 2003.

W. Chen, A. Bounaim, X. Cai, S. Holm, A. Tveito, and Å. Ødegård. Mathematical and numerical modeling of medical ultrasound wave propagation, Invited talk to MACSI-Workshop for Numerical Simulations for Ultrasound Imaging and Inversion, St. Georgen, Austria, pages 8-13, 2003.

G. T. Lines, X. Cai, and J. Sundnes. Parallel algorithms for simulating the electrical activity of the heart, Presented at the Dagstuhl seminar "Challenges in computational science and engineering", 2003.

G. T. Lines, B. F. Nielsen, A. Tveito, J. Sundnes, P. Grøttum, X. Cai, and K. A. Mardal. Computing the electrical activity in the human heart, Presented at the Centre of Mathematics for Applications, Oslo, 2003.

A. Tveito, G. T. Lines, B. F. Nielsen, J. Sundnes, P. Grøttum, X. Cai, and K. A. Mardal. Computing the heart, Presented at the 21st CAD-FEM users' meeting 2003 - International congress on FEM technology, Potsdam, Germany, 2003.

A. Tveito, G. T. Lines, J. Sundnes, B. F. Nielsen, P. Grøttum, X. Cai, and K. A. Mardal. Computing the electrical activity in the human heart, Presented at the European Conference on Numerical Mathematics and Advanced Applications, Prague, Czech Republic, 2003.

X. Cai and H. P. Langtangen. Developing Parallel Object-Oriented Simulation Codes in Diffpack, In: Proceedings of the Fifth World Congress on Computational Mechanics, Vienna University of Technology, 2002.

X. Cai and G. Lines. Enabling Numerical and Software Technologies for Studying the Electrical Activity in Human Heart, In: Applied Parallel Computing - Advanced Scientific Computing, 6th International Conference, PARA 2002, ed. by J. Fagerholm et al, pp. 3-17, Espoo, Finland, Springer-Verlag. Lecture Notes in Computer Science, 2002.

X. Cai, M. Sosonkina, and Y. Saad. Parallel Iterative Methods in Modern Physical Applications, In: Computational Science - ICCS 2002, ed. by P.M.A. Sloot et al, pp. 345-355, Springer-Verlag. Lecture Notes in Computer Science, 2002.

X. Cai and H. P. Langtangen. Developing Parallel Object-Oriented Simulation Codes in Diffpack, Invited talk at the Fifth World Congress on Computational Mechanics, Vienna, Austria, 2002.

G. T. Lines, J. Sundnes, A. Tveito, X. Cai, K.-A. Mardal, and A. M. Bruaset. Diffpack simulation of the electrical activity in the heart, Invited minisymposium talk at the 20th CAD-FEM User's Meeting, Friedrichshafen, Germany, 2002.

N. Bouhmala and X. Cai. Partition of Unstructured Finite Element Meshes by a Multilevel Approach, In: Applied Parallel Computing - New Paradigms for HPC in Industry and Academia, 5th International Conference, PARA 2000, ed. by T. Sørevik et al, pp. 187-195, Bergen, Norway, Springer-Verlag. Lecture Notes in Computer Science, 2001.

X. Cai and H. P. Langtangen. How modern programming techniques can greatly simplify the development of parallel simulation codes in computational mechanics, In: Proceedings of the MekIT'01 Conference, Tapir, 2001.

X. Cai and Å. Ødegård. On the Performance of PC Clusters in Solving Partial Differential Equations, In: Proceedings of the Tenth SIAM Conference on Parallel Processing for Scientific Computing, 2001.

H. P. Langtangen and X. Cai. A Software Framework for Easy Parallelization of PDE Solvers, In: Proceedings of Parallel Computational Fluid Dynamics 2000, ed. by C. B. Jensen and T. Kvamsdal and H. I. Andersson and B. Pettersen and A. Ecer and J. Periaux and N. Satofuka and P. Fox, North Holland, 2001.

G. Lines, X. Cai, and A. Tveito. A parallel solution of the bidomain equations modeling the electrical activity of the heart, Simula Research Laboratory, 2001.

X. Cai and H. P. Langtangen. How Modern Programming Techniques Can Greatly Simplify the Development of Parallel Simulation Codes in Computational Mechanics, Talk at the National Conference on Computational Mechanics (MekIT'01), Trondheim, Norway, 2001.