Basic HTML version of Foils prepared Sept 12 97

Foil 21 Structure(Architecture) of Applications - II

From General NPAC Foils-B starting June97(PowerPoint) Seamless Computing Conference ECMWF Reading England -- Sept 17,97. by Geoffrey C. Fox
1 Modules are "natural" message-parallel components of problem and tend to have less stringent latency and bandwidth requirements than those needed to link data-parallel components
  • modules are what HPF needs task parallelism for
  • Often modules are naturally distributed whereas parts of data parallel decomposition may need to be kept on tightly coupled MPP
2 Assume that primary goal of metacomputing system is to add to existing parallel computing environments, a higher level supporting module parallelism
  • Now if one takes a large CFD problem and divides into a few components, those "coarse grain data-parallel components" can be supported by computational grid technology
  • so no clean division but coarse grain modules are general goal!
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