First page Back Continue Last page Overview Graphics
Simulation-based Performance Prediction
With focus on Charm++ and AMPI programming models
Performance prediction is based on Parallel Discrete Event Simulation (PDES)
Simulation is challenging, aims at different levels of fidelity
- Processor prediction
- Network prediction
Two approaches
- Direct execution (online mode)
- Trace-driven (post-mortem mode)
Notes:
Simulating large parallel machines itself is quite challenging and expensive.
Prediction of parallel performance of an application mainly consists of two parts.