A*

Motivation and Skope

• A* is a set of models
• covers different areas: skeletons, app frameworks, gateways, workflows, etc.
  • skeletons: generator of artificial workloads according to some reciepie
  • frameworks: translates app semantics to workloads
  • synthetic applications: 'artificial' workloads
  • system workloads: derivation of workloads, adds resource consumption details

Notes:

• app modeling is applied to a specific class of applications (which share execution structure and properties, and where those are not influenced by application semantics).
• use bag of (connected) task as an examplar
• compared to skeletons, this will allow to not only reproduce, but also to reason about that execution structure, and possibly to react to Infrastructure changes.

Skope

• Analytical Application Models
• Application Simulation
• Application Emulation
• Experiments

Synthetic Application:

• spans from A* to over 4' to real workload on a real infrastructure

A* Descriptions:

• descriptions need an underlying model