JJL paper brainstorm

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Jonathan Lifflander edited this page Jul 22, 2020 · 11 revisions

Programming model & Execution Model
- Asynchronous execution of "tasks" mapped dynamically to nodes/ranks
- Build-by-design to be highly interoperable with MPI
  - Low-overhead transition between MPI and vt, expected to occur every timestep, both can be active and work together
  - Constructs in vt have symmetrical use in MPI (example: vt and MPI groups)
  - Safe MPI collectives through consensus amidst a asynchronous, dynamic scheduler (novel?)
- Completion and ordering
  - PendingSend: task graph can expand beyond what is completed (system has lookahead)