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More detailed preface description

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Tyler Goodlet 2023-01-28 18:56:15 -05:00
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``tractor`` is a `structured concurrent`_, multi-processing_ runtime
built on trio_.
Fundamentally ``tractor`` gives you parallelism via ``trio``-"*actors*":
our nurseries_ let you spawn new Python processes which each run a ``trio``
Fundamentally, ``tractor`` gives you parallelism via
``trio``-"*actors*": independent Python processes (aka
non-shared-memory threads) which maintain structured
concurrency (SC) *end-to-end* inside a *supervision tree*.
Cross-process (and thus cross-host) SC is accomplished through the
combined use of our "actor nurseries_" and an "SC-transitive IPC
protocol" constructed on top of multiple Pythons each running a ``trio``
scheduled runtime - a call to ``trio.run()``.
We believe the system adheres to the `3 axioms`_ of an "`actor model`_"