There is a growing need for massive computational resources for the analysis
of new astronomical datasets. To tackle this problem, we present here our first
steps towards marrying two new and emerging technologies; the Virtual
Observatory (e.g, AstroGrid) and the computational grid (e.g. TeraGrid, COSMOS
etc.). We discuss the construction of VOTechBroker, which is a modular software
tool designed to abstract the tasks of submission and management of a large
number of computational jobs to a distributed computer system. The broker will
also interact with the AstroGrid workflow and MySpace environments. We discuss
our planned usages of the VOTechBroker in computing a huge number of n-point
correlation functions from the SDSS data and massive model-fitting of millions
of CMBfast models to WMAP data. We also discuss other applications including
the determination of the XMM Cluster Survey selection function and the
construction of new WMAP maps.Comment: Invited talk at ADASSXV conference published as ASP Conference
Series, Vol. XXX, 2005 C. Gabriel, C. Arviset, D. Ponz and E. Solano, eds. 9
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