Specification of the PVMVis visualisation tool

Introduction The PVMVis visualisation tool is one of the three tools of the EDPEPPS project. The issue of this tool is to offer to the user graphical views representing the execution of the designed parallel application. Graphical views permits thw visualisation of the behaviour and the performance of a parallel application according to the time, the design and the platform. The visualisation is driven by a trace file generated by the simulator engine or a real execution and by the PVMGL file generated by PVMGraph [4]. This post-mortem analysis takes place after the simulation or the real execution and offers to the user several possibilities for performance evaluation. The concept used for the visualisation is an event-based animation (Fig. 1). The event trace animation is useful to understand the behaviour of the parallel application. Thanks to this view it is possible to focus on wrong behaviour like deadlocks or bottlenecks. Inside this animation concept, there are three