Dear All,

Recently we wrote a documents that tries to compare 4 Grid Software
Toolkits. Details below. Please send your comments etc. + also let us
know if you notice any errors - we can fix them.

Thanks
Raj
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Title: Global Grids and Software Toolkits: A Study of Four Grid
Middleware Technologies
Authors: Parvin Asadzadeh, Rajkumar Buyya, Chun Ling Kei, Deepa Nayar,
and Srikumar Venugopal
Comments: 19 pages, 10 figures
Report-no: * Technical Report, GRIDS-TR-2004-4, Grid Computing and
Distributed
Systems Laboratory, University of Melbourne, Australia, July 1, 2004
Subj-class: Distributed, Parallel, and Cluster Computing
ACM-class: C.1.4
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Grid is an infrastructure that involves the integrated and
collaborative use of computers, networks, databases and scientific
instruments owned and managed by multiple organizations. Grid
applications often involve large amounts of data and/or computing
resources that require secure resource sharing across organizational
boundaries. This makes Grid application management and deployment a
complex undertaking. Grid middlewares provide users with seamless
computing ability and uniform access to resources in the heterogeneous
Grid environment. Several software toolkits and systems have been
developed, most of which are results of academic research projects, all
over the world. This chapter will focus on four of these
middlewares--UNICORE, Globus, Legion and Gridbus. It also presents our
implementation of a resource broker for UNICORE as this functionality
was not supported in it. A comparison of these systems on the basis of
the architecture, implementation model and several other features
is included.

Download full document from - http://www.gridbus.org/papers/gmchapter.pdf
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