feat: multithreading - #30
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not fully implemented yet, doesn't handle the actual execution - will come later when passes/radix gets a multithreaded branch
in an attempt to merge the logic of multithreaded with singlethreaded, it overhauls the whole system. all logic goes through a router, and the singlethreaded logic is behaving as a multithreaded 1-thread, rather than its own thing.
spinlock-related
- restructure `ps_node_t` to fit in exactly one cache line (64B) - add tree build job - separate radix scatter struct for lock-free threading - move from per-thread arena to global arena architecture - fix tests/demo compilation errors - fix error handling in OOM branches
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This pull request completely refactors the codebase, making it multi-threaded oriented with single-thread handled essentially as "multi-threading with one core".
ps_node_tto fit in exactly one cache line (64B)Results:
THRD_CNTx performance boost at high particle counts,THETA=2.0F=> ~5-9% error)