Abstract
We have parallelized a FORTRAN two-dimensional hydrodynamic Flux Corrected Transport (FCT) code for astrophysical applications, using CSTools on a Meiko Computing Surface hosted by a SUN 4/370 workstation and fully integrated in a Unix/Ultrix Local Area Network. The processor topology maps the domain decomposition and message exchanges are required between adjacent processors. We have developed and used a library of high-level network and communication routines, based on CSTools primitives, and applicable to other parallel codes. We adopted a master-slave paradigm, and code parallelization took around twelve man hours. On a standard hydrodynamic problem we obtain a parallel efficiency above 90%, on arrays up to four 20 MHz T800 transputers, and performances in the range of several Mflops on Meiko boards with faster Intel 1860 processors.
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