Execute independent tasks

[rouson]

Problem Description

• To execute pre-compiled and linked subprograms in an ordered way with ordered data to solve a complex problem
• Two levels of organization exist
  • Stage -> individual subprogram with their names read from input
  • Task -> specific instantiation of a stage's subprogram for unique data
• Each stage involves multiple DAG vertices
• Each task is a single DAG vertex
• Ordering is defined by the DAG edges

First Execution Model

• The initialization reads the subprogram names
• The scheduler image assigns tasks without consideration for the DAG: ordering of tasks
• The compute images do the tasks
• The compute images notify the scheduler image when they are ready for a new task

Test: check that the scheduler image receive the ready-for-new-task notifications from each compute image that was assigned a task.

[rouson]

• Set up initial distribution
• Read an input file that lists the subprograms