Make mailbox push infallible and replace the locked tick-timing buffer with a
lock-free ring.
- channel: HybridChannel::push and Sender::send now return () — overflow always
absorbs, never rejects — dropping the Result<(), T> surface and its callers.
- stats: tick_timings moves from Mutex<VecDeque> to a lock-free crossbeam
ArrayQueue (drop-oldest-on-full), removing the per-tick lock.
- ripple the signature change through worker/runtime/config; drop worker_benchmarks.
- expand runtime_api tests around the new channel/stats shapes.
Signed-off-by: Zachery Aaron Shores-Chmielewski <zacheryasc@gmail.com>
Add a data-parallel MNIST training example where swactor actors coordinate gradient averaging across workers.
- crates/swactor-dp-mnist/worker.py: add `MnistNet` MLP and `MnistWorker` actor handling `train_batch`/`update`/`evaluate`/`save_model` over a sharded MNIST split with SGD
- crates/swactor-dp-mnist/aggregator.py: add `Aggregator` actor that buffers per-worker gradients, averages them, fans out updates, then logs/evaluates on completion
- crates/swactor-dp-mnist/run_training.py: spawn the Aggregator plus two MnistWorkers (identical initial weights, disjoint shards), run 750 rounds, and poll the inbox for `log`/`done`
- crates/swactor-dp-mnist/pyproject.toml: declare torch/torchvision/numpy deps, an editable local `swactor` source, and the PyTorch CPU index
- Cargo.toml: add a `[profile.bench]` retaining debug symbols (`debug = true`, `strip = false`) for profiling
Signed-off-by: Zachery Aaron Shores-Chmielewski <zacheryasc@gmail.com>
Add Criterion multi-threaded runtime benchmarks and a live dashboard load example.
- benches/mt_benchmarks.rs: add a Criterion suite with `mt/single_actor`, `mt/multi_actor`, `mt/ring`, and `mt/spawn` benchmarks over 2-4 threads, using `iter_custom` and a `wait_for_n_done` helper for deterministic completion
- crates/runtime-dashboard/examples/bench_dashboard.rs: add an example driving sink/ring/spawner load scenarios through `start_dashboard`/`DashboardConfig` for sustained cross-worker visualization
- Cargo.toml: register the `mt_benchmarks` Criterion bench target with `harness = false`
Signed-off-by: Zachery Aaron Shores-Chmielewski <zacheryasc@gmail.com>
Split the monolithic crate into a Cargo workspace with the Python and Wasm bindings as separate member crates.
- Cargo.toml: declare a `[workspace]` with members `.`/`crates/swactor-python`/`crates/swactor-wasm`, remove the `python` feature and pyo3 dependency, and change root crate-type from `["cdylib","rlib"]` to `["rlib"]`
- crates/swactor-python: new cdylib crate re-exporting the PyO3 bindings (Runtime/RuntimeConfig/RuntimeHandle/Inbox/Ctx/ActorAddress/RuntimeStats), depending on `swactor` + pyo3; pyproject.toml and uv.lock relocated here from the root
- crates/swactor-wasm: new cdylib crate moved from top-level `wasm/`, depending on `swactor` with `no_random` features
- src/actor.rs: widen `Actor::new`, `AnyActor`, `ContextInner`, and `Ctx::raw_inner` to `pub` so the separate binding crates can drive the runtime
- src/lib.rs: delete the in-tree `python` module and `#[pymodule]`, and gate the `no_random` RNG behind `all(feature = "no_random", not(feature = "getrandom"))`
- tools/: relocate package.json/package-lock.json; drop the now-duplicate `wasm/Cargo.lock`
Signed-off-by: Zachery Aaron Shores-Chmielewski <zacheryasc@gmail.com>
Refactoring to logically separate component modules in order to make it easier to develop tests, metrics, tracing, etc.
Signed-off-by: Zachery Aaron Shores-Chmielewski <zacheryasc@gmail.com>
Adds some basic benchmarking, stress tests. They still need to be properly examined to ensure they are testing the correct properties, but fit for "good enough". Implements the HybridChannel type, which features a channel buffer that can withstand overflows. It does so by providing a dequeue behind a mutex. Without overflow, will push messages into the lock free ArrayQueue implemented by crossbeam_queue; when that buffer fills, will use the locking portion provided by the Mutex<VecDequeue>.
In the future we can even further optimize this, perhaps with some linked list implementations of lock-free channels, but, like the benchmarks, this fits the "good enough" bar for now.
Signed-off-by: Zachery Aaron Shores-Chmielewski <zacheryasc@gmail.com>
Did not like the requirement of a tokio runtime and async/await. Rewrote
to use lock free queues (`crossbeam_queue::ArrayQueue`) as the basic
primitive to enable a runtime consisting of many pseudo-processes that
can pass messages to each other.
Reviewed-on: http://zachery.lol/code/code/zacheryasc/swactor/pulls/1
Signed-off-by: Zachery Aaron Shores-Chmielewski <zacheryasc@gmail.com>
Skeletal actor framework. Somewhat unweildy, needs a message box, a better runtime, and different channels. However, hello world example works
Signed-off-by: Zachery Aaron Shores-Chmielewski <zacheryasc@gmail.com>
