A Web Gateway to a Virtual Mathematical SoftwareRepository
نویسنده
چکیده
Embedding robust and eecient algorithms in high-quality reusable software is an eeective means of transferring the expertise of mathematicians to researchers in other disciplines, and a wealth of such software is already available. Unfortunately, its volume and distribution over labyrinthine computer networks makes it diicult for users to locate appropriate tools. The Guide to Available Mathematical Software (GAMS) is network-based cross-index and virtual repository that provides scientists and engineers with convenient access to such software. GAMS currently indexes some 9000 problem-solving software modules from some 80 packages distributed among four Internet-accessible software repositories. This software is cross-indexed using the widely-adopted GAMS problem classiication system. In addition, GAMS provides on-demand redistribution of such objects as abstracts, documentation, and source code of software that it catalogs. The system is based on a client-server architecture utilizing a specialized high-level repository protocol; communication is based on Unix sockets. Recently, a gateway to the World Wide Web was built using the Common Gateway Interface (CGI) of NCSA's httpd, enabling access to GAMS services by Web browsers like Mosaic. This has added more than 32,000 \pages" to the Web, many of which are constructed on demand by the gateway. In this paper I outline how the GAMS system is structured and describe the challenges involved in using CGI, Mosaic, and the Web to provide public access to a large virtual software repository.
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The Architecture of an IntelligentVirtual Mathematical SoftwareRepository System
Much reusable software is available for solving routine mathematical and statistical problems. Unfortunately, locating this software is often quite diicult in current distributed computing environments. The Guide to Available Mathematical Software (GAMS) virtual software repository seeks to remedy this by providing users with convenient access to thousands of software modules physically distrib...
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