Abstract— Scientific computing is being increasingly deployed over volunteer-based distributed computing environments consisting of idle resources on donated user machines. A fu...
Although a loosely coupled component-based framework offers flexibility and versatility for building and deploying large-scale multi-physics simulation systems, the performance o...
This paper presents an extensive characterization, tuning, and optimization of parallel I/O on the Cray XT supercomputer, named Jaguar, at Oak Ridge National Laboratory. We have c...
MPI is the de-facto standard for message passing in parallel scientific applications. MPI-IO is a part of the MPI-2 specification defining file I/O operations in the MPI world....
This paper presents program transformations directed toward improving communication-computation overlap in parallel programs that use MPI’s collective operations. Our transforma...
Anthony Danalis, Ki-Yong Kim, Lori L. Pollock, D. ...