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- From: kelly@ogicse.cse.ogi.edu (Kelly Atkinson)
- Newsgroups: or.general,pdx.general,ogi.general
- Subject: Computer Science Colloquia
- Message-ID: <46033@ogicse.ogi.edu>
- Date: 17 Nov 92 23:55:58 GMT
- Article-I.D.: ogicse.46033
- Sender: kelly@ogicse.ogi.edu
- Distribution: or
- Organization: Oregon Graduate Institute (formerly OGC), Beaverton, OR
- Lines: 106
-
-
- Oregon Graduate Institute
- Department of Computer Science and Engineering
-
- COLLOQUIUM SERIES
-
-
- -----------------------------------------------------------------------
- Distributed Computing Environments Colloquium Series
- (Co-sponsored by OCATE)
-
- Designing Database Systems for Mobile Computers
- Rafael Alonso, Matsushita Information Technology Laboratory
-
- Wednesday, December 2, 1992, 10:30 a.m.
- Main Seminar Room, OGI Administration Building
-
- Recently, there have appeared on the market a number of mobile pen-
- centric computers. Such machines represent a new kind of computing
- environment, one that we feel will force database designers to address
- new research issues. In this talk we briefly describe the characteristics of
- these machines, and list some of the research problems in this area
- currently being explored at the Matsushita Information Technology
- Laboratory. In particular, we will present our preliminary work in two
- areas: a pen-centric DBMS interface, and an energy-efficient query
- compilation mechanism (i.e., a query compiler that selects the database
- plan that uses the least amount of battery power).
-
- Bio:
-
- Rafael Alonso received a Ph.D. in Computer Science from U.C. Berkeley in
- 1986. He was a member of the faculty of Princeton University before
- joining the Matsushita Information Technology Laboratory in Princeton as
- Senior Scientist. Dr. Alonso's research interests include database systems,
- operating systems and distributed processing.
-
-
- -----------------------------------------------------------------------
- Issues in Scientific Computing Colloquium Series
- (Co-sponsored by OCATE)
-
- Applications Demand Class-Specific Optimizations:
- The C++ Compiler Can Do More
- Ian G. Angus, Boeing Computer Services
-
- Friday, December 4, 1992, 3:30 p.m.
- Main Seminar Room, OGI Administration Building
-
- So far C++ has made few inroads into the realm of scientific computing,
- which is still largely dominated by Fortran. Of the few attempts that have
- been made to apply C++ to numerically intensive codes, the results have
- often suffered from annoying performance problems. Examination of these
- problems suggests that they are unlikely to be solved by incremental
- improvements in compiler optimization technology.
-
- In this talk we will:
- * Motivate the discussion by describing a common efficiency problem
- that arises when numerical codes are programmed in C++.
- * Discuss some potential solution strategies that we believe to be
- viable in the near term, but not over the long term.
- * Introduce a minimal mechanism through which a compiler could
- solve these problems by loading class-specific optimizations on an as-
- needed basis. A simple interface that will enable this feature will be
- presented.
-
- While our immediate motivation is that of numerically intensive codes,
- our approach will be applicable to all application domains.
-
- Bio:
-
- Ian Angus received a Ph.D. in theoretical high energy physics from Caltech
- in 1986. Following graduation he spent a year as a research fellow in the
- Concurrent Computation Program at Caltech. In 1987 he joined the
- Computer Science group at Northrop's Research and Technology Center in
- Southern California. In 1992 he joined the Research and Technology
- organization within Boeing Computer Services in Seattle. Dr. AngusU
- research focuses on the use of object-oriented programming methods to
- facilitate scientific computation on massively parallel computers.
-
-
- -----------------------------------------------------------------------
- Issues in Scientific Computing Colloquium Series
- (Co-sponsored by OCATE)
-
- Single Schema Database Management Systems
- Don Batory, University of Texas
-
- Friday, December 11, 1992, 3:30 p.m.
- Main Seminar Room, OGI Administration Building
-
- Many data-intensive applications require high-performance data
- management facilities but utilize only a small fraction of the power of a
- general-purpose database system. We believe single schema database
- systems (SSDs), i.e., database systems that are designed to work only for a
- specific schema and a predeclared set of operations, are a vital need of
- today's software industry.
-
- The challenge is to create a technology for economically building high-
- performance SSDs. To meet this challenge, we are building the P2
- language, an extension of C, that is specifically designed to support high-
- performance, customized SSDs.
-
- This research was supported in part by grants from The University of
- Texas Applied Research Labs, Schlumberger, Digital Equipment
- Corporation, and Texas Instruments.
-
-