I am an assistant professor in the Department of Computer Science at Illinois Tech. My research lies at the intersection of operating systems, high-performance computing, and computer architecture. More specifically, I am interested in bridging software/hardware layers for enabling both functionality and performance, as well as questioning assumptions made by the software stacks we use today. Some projects I've worked on include the Nautilus Aerokernel, the Philix Xeon Phi OS toolkit, hypervisor-based code injection, VMM-guarded, privileged kernel modules, virtualized hardware transactional memory, and the ConCORD distributed memory tracking system. Find out more in the research section.
I am actively looking for new PhD students! Students interested in working with me should see this page.
PhD in Computer Science, 2016
MS in Computer Science, 2013
BS in Computer Science, 2010
The University of Texas at Austin
We are interested in the design of systems software for high-performance and parallel computing. As we see hardware scale up–both in terms of the number of interconnected machines and in terms of the number of computing elements on a single chip–We believe it is time to reconsider some of the design decisions that have sustained the popularity of the Linux/x86 software stack for general-purpose computing. Particularly, how should we organize/structure systems software stacks for future massive-scale machines?
Operating Systems & Virtualization, Parallel & High-Performance Computing, Computer Architecture, System Security
Interest 1, Interest 2
In Physics, we can use the laws of motion, or the Lagrange equation, to describe the trajectory of an object in a system. An object is described by a state vector–a list of orthogonal dimensions.
Operating systems (OS) provide the interface for programs to access privileged hardware and decide which programs can access system resources, when they can access them and for how long. Within the OS kernel, these decisions are made during scheduling, workload placement and mapping, resource accounting and various kinds of application and VM introspection.
Current serverless and micro-service architectures rely on existing system software to preserve compatibility and minimize development effort. However, they also inherit the latencies and overheads that existing systems carry with them.
Practitioners of high-performance parallel computing have long sought better programming models and languages to ease the task of writing programs for large-scale systems. However, there is an undeniable tension that exists between extreme performance and developer friendliness.
Although the loss of audibility associated with age-related hearing loss is relatively easy to address via ap- propriate frequency-gain amplification used in today's hearing aids, difficulty hearing in noisy environments is not.
Containerization has recently gained significant interest among cloud providers and users due to its ease of deployment and lightweight virtualization capabilities. The key feature of these approaches is the sharing of a single Linux OS instance among each active container environment.
Nautilus is a custom, lightweight operating system kernel designed for being fused with high-performance, parallel runtime systems. See more here.
We observe that the OS and database communities face a similar challenge: how do we optimize systems to exploit the characteristics of specialized hardware without sacrificing the flexibility of general-purpose designs?
I love music. I'm a tenor sax player but also dabble with the guitar and piano (Sonny Rollins is my favorite sax player, Oscar Peterson - piano, Kenny Burrel - guitar). Lately I've been listening to a lot of Sam Evian and Wilco. My favorite live venue in Chicago is The Empty Bottle.
I'm excited by all of the sciences, and I always enjoy getting to talk to domain scientists about their work at places like SC. I especially am interested in Astronomy and Cosmology, but unfortunately Chicago isn't the best place for stargazing.
I'm an avid reader of all genres, but especially historical fiction, hard sci-fi, and thought-provoking non-fiction.
I'm into traveling. My next target is either Istanbul or Scandinavia. I speak Japanese (I lived in Tokyo a while) and I'd like to learn a European language.
Some places I've lived: Corpus Christi, TX; Austin, TX; San Antonio, TX; Evanston, IL; Tokyo; Albuquerque, NM; Mountain View, CA.