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Large parameter sweep studies are common in a broad range of scientific disciplines. However, many challenges exist in supporting this type of computation in a widely distributed computing environment. These challenges exist because contributing sites in a federated distributed computing environment usually expose only a very narrow resource-sharing(More)
The Computational Chemistry Grid (CCG) is a three-year, National Middleware Initiative program to develop cyberinfrastructure for the chemistry community. CCG is led by the University of Kentucky and involves collaborating sites at Louisiana State University, Ohio Supercomputing Center, Texas Advanced Computing Center, and the National Center for(More)
Dual-processor nodes are the preferred building blocks in HPC clusters because of the greater performance-to-price ratio of such configurations relative to clusters comprising single-processor nodes. The arrival of 64-bit commodity clusters for HPC is advantageous for large space applications that require memory and I/O addressing beyond the 32-bit support.(More)
A 3.7 teraflops Cray-Dell Linux cluster based on Intel Xeon processors will be installed at the Texas Advanced Computing Center early this summer. It will represent a transition from the T3E line of massively parallel processing systems that served researchers at The University of Texas. Code migration to an IA-32 microarchitecture will benefit from the(More)
Incident angle dependencies of LADAR reflection depend on bulk material reflectivity and surface texture properties that can be exploited for surface identification. In this paper, surface identification via multiband LADAR reflected radiance is assessed using the nonconventional exploitation factors data system database. A statistics-based dimension(More)
may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited. ABSTRACT The presence of cirrus clouds introduces complex heating and cooling effects on the atmosphere and can also interfere with remote(More)
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