GridG Version 1.0Evanston 15 May 2003 The Northwestern University in the US, announced GridG Release 1.0. GridG is a generator of synthetic computational grids, which we model as a network topology graph whose nodes and links are annotated with the available hardware and software.
GridG has two components: a topology generator and an annotation
generator. GridG generates topologies that are both structured and
follow the outdegree power law of Internet topologies (and,
consequently, other power laws).
The annotation generator annotates
the routers, hosts, and links in the graph with attributes such as
memory size, number of CPUs, disk size, and bandwidth. GridG rules
attempt to capture correlations among the attributes of a host, and also
among hosts which are near to each other on the network.
GridG can be
used to evaluate middleware for Grid computing or to provide topology
and annotation information for simulators of distributed systems. The university
is using it to evaluate a GIS system it is building.
GridG version 1.0 is available online the GridG web site.
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