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3 Commits

Author SHA1 Message Date
Changho Hwang
42be3660e0 Add a new IB stack impl that doesn't use RDMA atomics (#728) 
* Added configurable InfiniBand (IB) signaling mode.
`EndpointConfig::Ib::Mode` enum selects the mode (`Default`, `Host`,
`HostNoAtomic`). `Default` is equivalent to `Host` unless specified
different by envrionment `MSCCLPP_IBV_MODE`. `Host` corresponds to the
previous implementation using RDMA atomics for signaling, while
`HostNoAtomic` uses write-with-immediate instead.
* Regarding updates in Python bindings and API.
 2026-02-10 01:07:53 +00:00
Binyang Li
e21513791a Address comments for PR #692 (#733) 
Rename nanobind-exposed C++ types to Cpp*
Replace MSCCLPP_EXECUTION_PLAN_DIR / MSCCLPP_NATIVE_CACHE_DIR with
MSCCLPP_CACHE_DIR across C++ and Python.
 2026-02-03 10:13:20 -08:00
Binyang Li
5acac93dbc Integrate MSCCL++ DSL to torch workload (#620) 
Provides two integration ways for MSCCL++ DSL.
1. Integrate with customized communication group
2. Integrate with NCCL API

Introduce new Python APIs to make it work:
```python
mscclpp.compile # compile dsl to json based execution plan
mscclpp.ExecutionPlanRegistry.register_plan(plan) # register the compiled plan to executionPlanRegistery
mscclpp.ExecutionPlanRegistry.set_selector(selector) # set the selector, the selector will return the best execution plan based on collection, message size, world size....
```
Fix #556

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Co-authored-by: Caio Rocha <caiorocha@microsoft.com>
Co-authored-by: Changho Hwang <changhohwang@microsoft.com>
 2025-10-29 15:39:00 -07:00