build(neuron): bump cudarc fork to 63327a2 (idempotent abort + Comm Send+Sync)

The fork's new commit makes `Comm: Send + Sync` (asserting NCCL's thread-safety invariant upstream) and makes `Comm::abort` idempotent via an `aborted` flag (so abort-then-Drop can't double-free) — strictly better than the previous Drop-no-panic workaround, and the `abort()` signature is unchanged so the watchdog call site is unaffected. Because `Comm` is now `Send + Sync`, `Arc<Comm>` and the `SendComm` / `NcclState` wrappers auto-derive `Send`/`Sync`, which conflicts (E0119) with neuron's manual `unsafe impl`s. Remove the four now-redundant impls — the safety assertion lives upstream in cudarc where it belongs. The conflict is in cuda-gated code, so only the CUDA type-check catches it (non-cuda build + clippy + tests stay green). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-08 16:33:14 +03:00
parent 7945240646
commit 60f5598542
3 changed files with 12 additions and 27 deletions
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -905,7 +905,7 @@ dependencies = [
 [[package]]
 name = "cudarc"
 version = "0.19.7"
-source = "git+https://github.com/grenade/cudarc?rev=dbc425aa865c178f38a3ec838f1f7a4da3146358#dbc425aa865c178f38a3ec838f1f7a4da3146358"
+source = "git+https://github.com/grenade/cudarc?rev=63327a256059f8252641ae46c6bb9eefe707f382#63327a256059f8252641ae46c6bb9eefe707f382"
 dependencies = [
 "float8",
 "half",