Discussion of: Energy-Aware Non-Preemptive Task Scheduling With Deadline Constraint in DVFS-Enabled Heterogeneous Clusters

David

• pg. 4089: energy-prior =? energy-priority and deadline-prior =? deadline-priority
• "theta describes how much we can sacrifice the runtime energy for a shorter make-span and less occupied servers."
  • "We also introduce the theta parameter to discard the minimum E run for reducing E idle when appropriate."
• Figure 4: 36% energy efficiency only achieved for simulation where GPU freq. scaling range is unrealistically wide
  • Do we know why this is limited?
  • Does the efficiency improvement need the full range, or does it always go to the edge?
• No plots showing optimal freq. and voltage as determined by algorithm.
  • (e.g. did it always push these to a limit?)