Basic HTML version of Foils prepared July 14 97

Foil 5 HPCC Software issues

From Web Technology as the basis of Portable High Quality HPCN Software Review Meeting of PSPTA Group Manchester UK, Garland Texas(E-systems), Winnipeg Canada(HPCS'97) -- July 1,9,12 97. by Geoffrey C. Fox


We can distinguish Decomposition and Integration
Decomposition is performed by an HPF or other Parallelizing compiler; or by a user writing a Fortran + Message Passing code "by hand"
MPI integrates decomposed parts together with high bandwidth latency constraints
Systems such as AVS integrate larger modules together and much of "software engineering" (modular style of programming) involved with this
Web is a powerful integration model suitable for large coarse modules with modest latency and sometimes modest bandwidth requirements
  • naturally "integrate" data(bases), people, computation together
Collaboration, computational steering, multidisciplinary science are all integration and not decomposition problems!



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