Prof. Dror Feitelson
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I am the head of the
Experimental Systems Lab
here at Hebrew University, formerly the parallel systems lab, but we
hardly work on parallel systems any more.
My own research centers on performance evaluation, mainly workload
characterization and modeling.
This is part of a wider interest in experimental
computer science in general.
With my students I work on various aspects of computer systems,
including parallel job scheduling, operating systems, software
engineering, and even a bit of architecture.
Here are some details.
- Workload characterization and modeling
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I am interested in analyzing and characterizing the actual usage
of parallel machines, with the long-term goal of placing research on a
more solid foundation (i.e. use measurements rather than assumptions
as a basis).
This sometimes leads to pretty pictures.
As part of this effort, I also maintain an
archive of parallel workloads,
which contains workload logs from various production installations,
workload models proposed in the literature, and a bibliographical listing.
I'm also working on a
book on this subject.
- Parallel job scheduling
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This refers to scheduling parallel jobs for execution by an operating
system, as opposed to off-line task scheduling.
I have worked on gang scheduling and backfilling.
I am also the founding co-organizer of a
series of workshops on this topic,
which are held annually since 1995 in conjunction with other major
conferences.
Their proceedings are available from
Springer-Verlag as part of the LNCS series.
- Operating systems and scheduling
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My students have developed interesting ideas regarding scheduling for
multimedia and removing ticks from operating systems.
See the web pages of Yoav Etsion and
Dan Tsafrir.
In addition we're working on fair share allocation, mainly in the
context of virtualization.
- Software engineering
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I'm interested in how software evolves and the open-source movement.
The main vehicle of my research in this area has been the repository of
all past releases of the Linux kernel.
One day this may lead to work on human aspects of software development.
Other things I've worked on in the past include
- Parallel systems
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I've worked on a couple of experimental parallel system: the Makbilan
and the ParPar cluster, and also on early versions of the IBM SP.
More details in the Parallel Systems Lab.
- Parallel I/O
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This is what I did in my postdoc at IBM Research, which culminated
with the implementation of the Vesta parallel file system
(the basis for IBM's PIOFS)
(work with Peter Corbett).
I was also involved in the inception of the MPI-IO
standard proposal, which was later incorporated into
MPI-2.
- Digital libraries
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I did some work on digital libraries, and implemented a neat
system called BoW for “bibliography on the
web”; this is a bibliographical repository on the topic of parallel
systems.
- Optical Computing
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In the more distant past I wrote an extensive survey on optical
computing, and did some work on using optical networks.
| 1982-1985
| BSc in Mathematics, Physics, and Computer Science,
at the Hebrew University.
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| 1985-1987
| MSc in Computer Science at Hebrew University.
Thesis subject: a survey of optical computing.
Advisors: Prof. Danny Dolev and
Prof. Larry Rudolph.
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| 1987-1991
| PhD in Computer Science at Hebrew University.
Thesis subject: gang scheduling with distributed hierarchical control.
Advisor: Prof. Larry Rudolph.
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| 1992-1995
| Postdoc at IBM T.J. Watson Research Center, Yorktown heights, NY.
Worked mainly on the Vesta parallel file system, which was the basis
for the Parallel I/O File System on the IBM SP2.
Host: Prof. Marc Snir.
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| since fall 1995
| Lecturer of Computer Science at Hebrew University.
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| May 2002
| Promoted to Senior Lecturer with tenure.
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| 2004-2005
| Sabattical at Vanderbilt University.
Host: Prof. Steve Schach.
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| Nov 2006
| Promoted to Associate Professor.
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Dror Feitelson
School of Computer Science and Engineering
The Hebrew University
91904 Jerusalem, ISRAEL
e-mail:
Phone (+fax): +972-2-549-4555
Office: Ross 75
Background:
The background color of this page is supposed to be like that of the
red granite rocks in the
Santa Katarina area in the Sinai peninsula.
This is my favorite type of rock.
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Last modified: 3 Oct 2010 /
Prof. Dror Feitelson