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Publications - On Probabilistic Parallel Programs with Process Creation and Synchronisation


Stefan Kiefer and Dominik Wojtczak. On probabilistic parallel programs with process creation and synchronisation. Technical report,, December 2010. Available at


We initiate the study of probabilistic parallel programs with dynamic process creation and synchronisation. To this end, we introduce probabilistic split-join systems (pSJSs), a model for parallel programs, generalising both probabilistic pushdown systems (a model for sequential probabilistic procedural programs which is equivalent to recursive Markov chains) and stochastic branching processes (a classical mathematical model with applications in various areas such as biology, physics, and language processing). Our pSJS model allows for a possibly recursive spawning of parallel processes; the spawned processes can synchronise and return values. We study the basic performance measures of pSJSs, especially the distribution and expectation of space, work and time. Our results extend and improve previously known results on the subsumed models. We also show how to do performance analysis in practice, and present two case studies illustrating the modelling power of pSJSs.

Suggested BibTeX entry:

    author = {Stefan Kiefer and Dominik Wojtczak},
    institution = {},
    month = {December},
    note = {Available at},
    title = {On Probabilistic Parallel Programs with Process Creation and Synchronisation},
    year = {2010}

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