SEMINAR

Introduction to High Performance Linear Algebra (Parts III and IV)

Marcin Paprzycki

Department of Computer Science and Statistics
University of Southern Mississippi

ABSTRACT

Over the last few years a number of changes occurred in the area of high performance computing. First, in the mid-1990's a number of vendors have "disappeared" from the high performance computing arena. This process resulted, among others, in a rapid convergence of HPC hardware architectures into few, relatively similar, developmental lines. More recently, we have witnessed the introduction of clusters of cheap and powerful PC's which provide a more economical way of approaching medium size computational problems. Similarly, in the area of HPC software we also observe a slow convergence toward a few tools, which gained popularity and became de-facto standards for software writing. In addition, a number of software libraries have been developed and by now are in their n-th releases guaranteeing high quality and dependability. These are all signs of the maturing discipline, which is coming out of the initial stages of uncertainty into a stage of sustained growth.

While these processes take place, a wide spread problem of the difficulty of moving toward parallel computing is also being recognized. The same way as in the past researchers tried to run their "dusty-deck" codes on Cray computers and complained about the lack of performance, nowadays (already) vectorized codes have difficulty finding their way to parallel machines.

The aim of this two-part seminar is to provide an overview of the recent developments and state of the art in the areas of high performance hardware, tools and environments, and libraries as related to the matrix algorithms. We will divide the area into two subareas -- the known and the unknown. Here, the known, is the set of problems and approaches which are well studied and only "incremental research" is immediately required. The unknown, are these problems, where number of questions substatially outweights the number of answers.

WHERE: TEC 205

WHEN(day): Friday, January 12th and 19th, 2001

WHEN(time): 2:00pm

EVERYBODY IS INVITED