Basic HTML version of Foils prepared October 20 98

Foil 5 Parallel CMS: Approach

From Overview of PET support for CMS Internal Briefing -- October 1998. by Wojtek Furmanski
Performance critical CMS computation: compare vehicle PDU and mine location in a loop over all mines
Parallelize using Origin2000 C++ compiler pragmas such as pfor to decompose this loop over processors
Two approaches being explored:
  • simpler: decompose only the topmost loop over minefields
  • optimal: linearize the nested linked lists of minefields / components / mines and decompose the resulting mine array

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