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Gathering at the Well: Creating Communities for Grid I/O
 

Summary: Gathering at the Well:
Creating Communities for Grid I/O
Douglas Thain, John Bent, Andrea Arpaci-Dusseau, Remzi Arpaci-Dusseau, and Miron Livny
Computer Sciences Department
University of Wisconsin - Madison
1210 West Dayton Street, Madison WI 53706
ABSTRACT
Grid applications have demanding I/O needs. Schedulers must
bring jobs and data in close proximity in order to satisfy through-
put, scalability, and policy requirements. Most systems accom-
plish this by making either jobs or data mobile. We propose
a system that allows jobs and data to meet by binding exe-
cution and storage sites together into I/O communities which
then participate in the wide-area system. The relationships
between participants in a community may be expressed by the
ClassAd framework. Extensions to the framework allow com-
munity members to express indirect relations. We demonstrate
our implementation of I/O communities by improving the per-
formance of a key high-energy physics simulation on an inter-
national distributed system.

  

Source: Arpaci-Dusseau, Remzi - Department of Computer Sciences, Department of Computer Sciences, University of Wisconsin at Madison

 

Collections: Computer Technologies and Information Sciences