Towards Self-Adaptive Concurrent Software Guided by On-line Performance Modelling The ADVANCE Approach

We present preliminary results on dynamic self-adaptation of streaming networks of concurrent programs (called boxes) to the underlying hardware platform. The monitoring subsystem gathers on-line measurements on the performance of individual boxes and uses the measurements to construct (and improve) performance models of the boxes. Ideally, the models accurately predict the running time of boxes in their next invocations in stream processing. Hence, they can be used by a mapper to optimize the distribution of the limited system resources –processor cores– to the boxes.