CISMMS Special Seminar: Prof. P. Sadayappan @ Latrobe Hall 106
Oct 11 @ 10:00 am – 11:00 am

Towards enabling high user productivity and high-performance with parallel computing


Recent trends in computer architecture are making high degrees of parallelism as well as heterogeneity ubiquitous. This creates significant challenges to application developers as well as compiler implementations. The effort to develop parallel applications for advanced computational models is extremely high. Further, currently it is impossible to achieve performance portability of high-performance applications from a single version of a program – different code versions are necessary for different target platforms, e.g., for multicore CPUs versus GPUs. A promising approach to easing the burden on applications programmers and achieving high performance on parallel machines is via identifying suitable high-level and domain-specific abstractions. This talk will discuss efforts to develop compiler techniques to automatically transform programs specified using high-level abstractions.


About the Speaker:

Dr. P. Sadayappan is a Professor in the Department of Computer Science and Engineering at The Ohio State University. His primary research interests center around performance optimization and compiler/ runtime systems for high-performance computing, with special emphasis on high-performance frameworks that enable high productivity for application developers in scientific computing.  Two recent projects include a polyhedral framework for automatic parallelization and data locality optimization, and the Tensor Contraction Engine – a domain-specific compiler/runtime system to automatically transform high-level specifications into efficient parallel programs, for a class of high accuracy ab initio models in quantum chemistry. Dr. P. Sadayappan obtained a B.Tech from the Indian Institute of Technology, Madras, and M.S. and Ph.D. from Stony Brook University, all in Electrical Engineering.

Faculty Host:Prof. Somnath Ghosh, 203 Latrobe, 410-516-7833, [email protected]

For more information, please contact Jae Hong, 410-516-5033, [email protected]

CE-CISMMS Graduate Seminar: Prof. Jacobo Bielak @ Hackerman Hall B-17
Mar 27 @ 12:00 pm – 1:00 pm

End-to-end earthquake simulation: From the source to propagation path, site effects, and seismic response of building clusters


This talk will deal with the response of a simple class of building clusters during earthquakes, their effect on the ground motion, and how individual buildings within the cluster interact with the soil and with each other. In order to study this problem it is convenient to first simulate the free-field earthquake ground motion and then incorporate this ground motion as input to the domain that includes the building structures. To this effect, I will describe Hercules, a parallel finite element code developed by the Quake Group at CMU for modeling the kinematic source, wave propagation path and local site effects, and the Domain Reduction Method (DRM), our methodology for incorporating the incoming seismic motion into the analysis of the earthquake response of civil infrastructure in a localized region. As an application, I will then show results of a simulation of the ground motion during the 1994 Northridge earthquake and focus on the coupled response of a set of idealized building models located within the San Fernando Valley in southern California.

Jacobo Bielak

About the Speaker:

Prof. Jacobo Bielak received his Civil Engineer’s degree from the National University of Mexico (UNAM), MS from Rice University, and PhD from Caltech. He joined Carnegie Mellon University in 1978, where he is now the Paul Christiano University Professor. His research is in the areas of earthquake engineering and engineering seismology, and, more recently, also structural health monitoring. He was a member of the original Applied Technology Council (ATC) committee that drafted the first tentative seismic provisions for soil-structure interaction in the US based mainly on his work. These provisions are now, in modified form, part of the NEHRP seismic provisions. Recognition for his work includes the Gordon Bell Prize for Special Accomplishment Based on Innovation. He is a Distinguished Member of ASCE and a member of the National Academy of Engineering.

Faculty Host:Prof. Somnath Ghosh, 203 Latrobe, 410-516-7833, [email protected]

For more information, please contact Jae Hong, 410-516-5033, [email protected]

CE-CISMMS Special Seminar: Prof Van Thompson @ Latrobe 106
Nov 10 @ 2:00 pm – 3:00 pm


Dental Enamel- a Multi-Scale Modelling Challenge



The tooth is a unique functionally graded composite structure at several levels providing a hard and apparently self-healing enamel external shell bonded to a dynamic and resilient dentin core both supported by a vascular and neural network in the tooth pulp. Tooth enamel is nature’s cell derived method for production of a high elastic modulus (~ 90 GPa), hard, wear, and fatigue resistant structure.  This presentation will review the micro and meso structure of human teeth as well as studies on their Hertzian contact and Vickers indentation response.  The fracture toughness measurements of enamel and dentin by several groups and the need to further explore mechanical response with enamel location and orientation are discussed.  Emphasis well be on the role of decussation on enamel properties and likely mechanisms for enamel self-repair of microcracks when teeth are fatigued



About the Speaker

Van P. Thompson, DDS, PhD, is currently, Professor of Biomaterials, Biomimetics and Biophotonics at King’s College London Dental Institute and was previously Chair, Biomaterials and Biomimetics, NYU College of Dentistry.  Known for his work on adhesion and bonded bridges at the University of Maryland he has published many articles and made numerous presentations on dental biomaterials in the U.S. and internationally.  His current research areas include dentin caries activity, all-ceramic crown fatigue and fracture, modifications of dentin for bonding, engineering tissue response via scaffold architecture and practice based research (PEARL Network).

Faculty Host: Prof. Somnath Ghosh, 203 Latrobe, 410-516-7833, [email protected]

Khairul Bariah Abd Majid: 410-516-5033 or [email protected]