NSC Seminars on High Performance Computing
This seminar series is arranged by the National
Supercomputer Centre (NSC) at Linköping University. Seminars presented
in the series focus on various aspects of high performance computing in
scientific and technological research, such as results from actual computations,
numerical algorithms, as well as hardware and software solutions in high
performance computer systems. The seminars are intended for a scientific
cross-disciplinary audience, i. e., scientists, engineers and students
with an interest in computational modelling as a research tool.
If you have questions, suggestions or would like further information, please
contact Jan Fagerström (email@example.com),
Programme Autumn 2001
Please click here to view previous
seminars in the series.
Parallel processing including MPI, OpenMP and parallel tools
Speaker: Dr. Charles Grassl, IBM Research
Time: Friday, October
19, 2001, at 13.15-14.00
Parallel processing issues will be covered. Central to this issue is the
concept of multiple shared memory nodes. Within a single node, the user
can exploit parallel processing with either shared memory (OpenMP) or with
a distributed memory model (MPI). To exploit parallelism throughout the
entire system, the user can implement either the distributed memory model
(MPI) or a multilevel model involving both OpenMP and MPI.
About Charles Grassl, Ph.D.
Charles Grassl is an Information Technology specialist in the Advance Computing
Technology Center (ACTC) at the IBM's T.J. Watson Research center. Charles
works on high performance computing issues involving performance and programming
models. These program models include shared memory parallelism involving
OpenMP and distributed memory parallelism involving MPI. He on the "multilevel"
programming model which combines MPI and OenMP.
Charles' duties include giving workshops of programming and conversion,
program conversion and optimization. He also works with high performance
computing centers on issues regarding conversion, optimization and benchmarking.
Prior to joining IBM in 1998, he has worked in the benchmarking and
in the strategic marketing groups at Cray Research. In the benchmarking
department he worked on program optimization using both vectorization and
parallelization. In the strategic marketing department he worked on competitive
analysis and issues dealing with computer performance.