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Initial proposition to add dynamic/callback-based profile

Fabien Chaix requested to merge chaix/simgrid:master into master

Unfortunately, the current profile feature of Simgrid is a bit too rigid for us to implement our work on faults. We want to model a set of related Weibull distributions generate in specific way.

One way to address our problem is to allow the generation of profiles dynamically, by using signals, the S4U way. This merge request describes a draft implementation for that, and a quick example for this feature (s4u-platform-dynamic-failures), that should build OK, but obviously test will not pass (and end with a nice segfault).

Another (complementary) way would be to make Simgrid stochastic profile feature -much- more complete, but this may need quite some work to get something good (in particular with reproducibility in mind).

Edited by Fabien Chaix

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