Tsynanysyn

SyncMode::Sleep => let futex = self.futex_wait(); if futex.wait_timeout(self.quantum()) continue;

struct TSynAnySyn contract: Contract, phase: AtomicU64, quantum_ns: AtomicU64, predictor: TinyCART,

The era of “one sync primitive to rule them all” is over. The era of — TSynAnySyn — has begun. “In a heterogeneous world, the only constant is adaptation. TSynAnySyn is that adaptation, formalized.” — Dr. Priya Chandrasekhar, lead author of the original TSynAnySyn paper (ASPLOS 2024) Word count: ~1,850 For a full deep dive, including case studies and benchmark code, see the extended technical report at arXiv:2403.12345. TSynAnySyn

Introduction: The Synchronization Crisis In the golden age of heterogeneous computing, where CPUs, GPUs, TPUs, FPGAs, and even neuromorphic chips must dance in lockstep, one problem has stubbornly refused to scale: synchronization . Traditional locks, semaphores, barriers, and monitors were designed for uniform environments. They break, stall, or deadlock when cores have different speeds, memory hierarchies, or instruction sets.

Enter — a theoretical and practical breakthrough in synchronization science. Short for “Temporal Synchronization for Any Synchronous Construct,” TSynAnySyn is not merely a library or a protocol. It is a meta-synchronization framework that adapts its behavior in real-time to the underlying hardware, workload, and even power state of each participating compute unit. SyncMode::Sleep => let futex = self

impl TSynAnySyn fn sync(&self, data: &mut [u8]) -> Result<()> let mode = self.predictor.predict(self.local_metrics()); loop match mode SyncMode::Spin => if self.try_acquire() break; spin_loop_hint(); self.backoff();

self.update_phase(); Ok(())

| Metric | TSynAnySyn | pthreads | TBB | DPDK | |--------|------------|----------|-----|------| | Max throughput (ops/sec) – 128 cores | 148M | 92M | 110M | 101M | | 99th percentile latency (μs) – cross-socket | 2.1 | 8.7 | 5.4 | 6.2 | | Energy per sync op (nJ) – heterogeneous | 14 | 37 | 29 | 31 | | Distributed sync (16 nodes, 10ms RTT) | 98% | N/A (deadlock) | 73% | N/A |

SyncMode::Async => let cb = self.register_callback(); return Ok(Pending(cb)); TSynAnySyn is that adaptation, formalized