Basic HTML version of Foils prepared Sept 30 98

Foil 32 Data Flow Modules and PetaSIM II

From A Coarse Grain Performance Estimator -- PetaSIM and a Hybrid Distributed Object Model for the IPG NASA Workshop on Performance Engineered Information Systems -- Sept 28-29 98. by Geoffrey C. Fox, Yuhong Wen, Wojtek Furmanski, Tom Haupt
One or more Client Server Applications are a special case of Dataflow
  • Application servers in industry are moving client server to dataflow
Can be applied either to a geographically distributed network or to a cluster of PC's or workstations
In PetaSIM, need to define "middle-tier" objects and their performance parameters and "simple estimates" as in PetaSIM fits the coarse graining of applications
General problem is multiple "dataflow graphs" and collaborative sessions to be modeled in context of a given network model
  • MSTAR (as in Darpa Performance Program) is Dataflow (Khoros)

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