@InProceedings{pasquale:characterization, author = {Barbara K. Pasquale and George C. Polyzos}, title = {Dynamic {I/O} characterization of {I/O} intensive scientific applications}, booktitle = {Proceedings of Supercomputing '94}, year = {1994}, pages = {660--669}, URL = {http://www.acm.org/pubs/citations/proceedings/supercomputing/198354/p660-pasquale/}, keywords = {parallel I/O, pario-bib}, abstract = {Understanding the characteristic I/O behavior of scientific applications is an integral part of the research and development efforts for the improvement of high performance I/O systems. This study focuses on application level I/O behavior with respect to both static and dynamic characteristics. We observed the San Diego Supercomputer Center's Cray C90 workload and isolated the most I/O intensive applications. The combination of a low-level description of physical resource usage and the high-level functional composition of applications and scientific disciplines for this set reveals the major sources of I/O demand in the workload. We selected two applications from the I/O intensive set and performed a detailed analysis of their dynamic I/O behavior. These applications exhibited a high degree of regularity in their I/O activity over time and their characteristic I/O behaviors can be precisely described by one and two, respectively, recurring sequences of data accesses and computation periods.} }