- vendor/deep_ep: EPBuffer dispatch/combine with torch.distributed uneven
all_to_all (host-synced split sizes), EngramBuffer sharded lookup,
BucketBuffer all_gather (CP-only reduce paths stubbed); verified against
the DeepEP-Ascend references at world size 1/2/4.
- tilelang_ops/neuron sampling: random_sampling (asc two-level fixed-point
sampler, Philox), fused_sample (logprobs / do_sample), sampler metadata,
sum_smaller_probs, structured-output bitmask; DSpark/MTP/varlen kernels
raise NotImplementedError. All 42 asc *_tl factories now have a Neuron
counterpart.
- vendor/flash_attn: SDPA varlen stand-in for the ViT (mirrors npu_ops).
- transfer_to_neuron: keep `with torch.device(...)` working on patched
factories; fix manual_seed recursion in host mode.
- engram: gather the packed ue8m0 sf as bytes on Neuron.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
