Colloq Abstract - Latham

March 7, 2016

2pm Mountain

 

Rob Latham

Argonne National Lab

 

The I/O stack in High Performance Computing

Abstract

We will survey the I/O software stack on Blue Gene /Q andLinux clusters, touching on file system, MPI-IO, and higher level interfaces such as Parallel-NetCDF and HDF5.  We will discuss some of the tools and approaches available to scientists trying to understand performance bottlenecks, focusing on the Darshan lightweight statistics tool. We will conclude with a quick survey of ongoing research ideas.

 

 

 

Connect with NRAO

The National Radio Astronomy Observatory and Green Bank Observatory are facilities of the U.S. National Science Foundation operated under cooperative agreement by Associated Universities, Inc.

Founded in 1956, the NRAO provides state-of-the-art radio telescope facilities for use by the international scientific community. NRAO telescopes are open to all astronomers regardless of institutional or national affiliation. Observing time on NRAO telescopes is available on a competitive basis to qualified scientists after evaluation of research proposals on the basis of scientific merit, the capability of the instruments to do the work, and the availability of the telescope during the requested time. NRAO also provides both formal and informal programs in education and public outreach for teachers, students, the general public, and the media.

The National Science Foundation (NSF) is an independent federal agency created by Congress in 1950 "to promote the progress of science; to advance the national health, prosperity, and welfare; to secure the national defense..."

AUI collaborates with the scientific community and research sponsors to plan, build, and operate cutting-edge facilities. We cultivate excellence, deliver value, enhance education, and engage the public.