- Supercomputing your science is easier than you think
- Jetstream virtual machines are tuned to your scientific domain
- XSEDE Campus Champions take the horror out of HPC
For many researchers who require large amounts of computational firepower, limited funds means they often lack access to the high-performance computing (HPC) resources critical for their work.
This is where the Extreme Science and Engineering Discovery Environment (XSEDE) Campus Champions step in. Champions are responsible for connecting academics with national HPC resources like Jetstream if the researchers lack them locally.
“HPC is a pretty complex product to introduce to a new user,” Indiana University Campus Champion Abhinav Thota says.
“Most normal technology users do not run into job schedulers, interconnected nodes, and multiple special purpose file systems that combine to form an HPC system. This is hard for anyone to wrap their heads around immediately.”
Champions connect domain scientists with the wide variety of research tools Jetstream offers, such as the virtual machines configured to domain-specific needs that allow scholars to complete their work from any location and make work easily sharable for collaboration purposes.
While a common challenge Thota faces is explaining the specifics of HPC, he also faces another issue in linking researchers with HPC services.
“One of the most common complaints I hear is that HPC resources are not user friendly,” Thota says. “We are trying to address that by bringing in graphical user interfaces (GUIs) with Jetstream.”
There’s a lot of great programs within XSEDE — When you don’t have the time to do all the research yourself, it’s a lifesaver at a smaller school. ~Ben Nickell
Previously, many researchers had to work with cumbersome text-based command line interfaces (CLIs). GUIs, however, incorporate windows, icons, and menus that display information visually, allowing scholars to instantly see results and computations in an interactive way.
Big computers, small schools, long tail
Smaller institutions depend on local computing systems that are prone to backlogs, processing limitations, and lack connectivity to national resources.
Research tools like Jetstream eliminate old problems and provide new services because scholars can access XSEDE’s resources from laptops, tablets, or desktop computers, making HPC assets accessible from any location.
Michael Souffrant, a graduate researcher at Georgia State University, has benefitted from XSEDE’s resources.
“Our goal is to simulate models that represent enzymes or random structures and study different states,” Souffrant says.
“XSEDE opens doors for students like myself to not only study ideas and a hypothesis, but it also gives us the opportunity to work on supercomputing and to gain experience on resources that we probably will not come close to having ourselves.”
With the help of the Champions, Souffrant has published work on distinctive water recognition motifs in proteins in the Journal of Chemical Information and Modeling.
In addition to Jetstream, Champions link scientists with a dozen XSEDE supercomputers, such as Stampede at the Texas Advanced Computing Center, Comet at the San Diego Supercomputer Center, or Bridges at the Pittsburgh Supercomputing Center.
“There’s a lot of great programs within XSEDE that you can find a good match for what you’re looking for,” says Ben Nickell, the Champion at the Idaho National Laboratory.
“There’s the campus bridging program, the Extended Collaborative Support Services, the Champion mailing list to point you to resources, even the XSEDE helpdesk is a great. When you don’t have the time to do all the research yourself, it’s a lifesaver at a smaller school.”