flashinfer.comm.resolve_pcie_ipc_profile

flashinfer.comm.resolve_pcie_ipc_profile(group: ProcessGroup, requested: str | None = None, device: device | None = None) → PcieIpcProfileDecision

Probe every rank and agree on one profile.

Collective. Runs before any workspace allocation or JIT build so an unsupported topology costs nothing, and gathers the per-rank probes so every rank reaches the same decision from the same evidence.