Department of Computer Science

Knox College

**Office:** SMC E-203

**Phone:** 309-341-7479

**Fax:** 309-341-7601 (Registrar's office)

**Email:** dbunde@knox.edu

**"Official" webpage:** http://www.knox.edu/dbunde.xml

**Mailing address:**

Knox College Box 100

2 E. South Street

Galesburg, IL 61401

Email is generally the best way to reach me

During the academic year, I spend most of my time teaching. In Winter 2016, I am teaching the following:

Courses taught in previous terms

A theme of my teaching at Knox is the integration of parallel computing. Now that multicore processors are the norm and large numbers of cores are on the horizon, all students need to lear about concurrency and parallelism. Because of this, I have been trying to include relevant topics throughout my courses. I have recently received NSF support for a project doing this with high-level languages and a broad range of examples.

I work on a bunch of cool problems for my research. Currently, my main focus is on resource management for supercomputers. I recently received NSF support for a project to maximize supercomputer performance on a new kind of system topology. Supercomputers are really large expensive systems with many (10K+) processors. They are used to solve important scientific and engineering problems. My group doesn't worry so much about using such systems (Knox doesn't have one...), instead focusing on the software required to run them. Primarily, we evaluate our ideas via simulation, but we have done some experiments on real systems at Sandia National Labs. Some of our work has been implemented in SLURM, an open source system for managing clusters. If this sounds interesting to you, please contact me; I'm always looking for students to work with.

I also do theoretical work in scheduling. When taking a theoretical approach, I'm looking to prove desirable properties of algorithms, the recipes computers use to solve problems. These properties might be that the algorithm always finds an optimal solution. In scheduling, this is often not possible because the scheduler needs to make decisions without knowing about tasks that are going to arrive in the future. In these cases, I try to find an algorithm that finds schedules that are always nearly as good as the optimal schedule. (It's not clear how you can do this without finding an optimal solution, but it's actually possible for many problems.)

See my list of publications for more details.

Last modified December 2015 by dbunde@knox.edu