whn09 45e1e44444 Neuron: tiny-model decode region graphs compile and run on a NeuronCore (issues #9, #25)
Fixes found by reducing neuronx-cc NCC_IINL902 crashes to minimal reproducers (crash rates over repeated
compiles, the compiler is nondeterministic on these graphs):
- uint8 byte assembly of narrowed values (KV records, e2m1/e4m3 codes, ue8m0 exponents) crashed or
  silently corrupted bytes: producers keep int32 codes under compile and stores narrow once
  (fused_transform, kv_quant, store_kv_cache; neuron_compile.encode_codes).
- int16 packed scales written through a uint8 view and read back in the same graph: the Neuron kernel
  now receives the int16 storage and packs byte pairs arithmetically (_alloc_quant, return_quant).
- fp8 legalization pass treated plain float->bf16 conversions as fp8 carriers (wrong values + crash).
- Projection stage split further (nullcontext instead of a disabled CP session).

Device (tiny model, regions mode): every decode graph compiles; argmax vs golden short 9/9,
medium 8/9 (step 6 near-tie, margin 0.065), long 9/9, cos 0.997-0.9995.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-22 18:38:01 +08:00
..
compile Neuron: tiny-model decode region graphs compile and run on a NeuronCore (issues #9, #25) 2026-10-22 18:38:01 +08:00
deep_ep Neuron deep_ep: MoE dispatch/combine via all-gather + reduce-scatter (issue #12) 2026-10-22 04:01:28 +08:00
deep_gemm Neuron: test suite for new boxes, device-vs-host differential tool 2026-10-21 09:46:29 +08:00
device Neuron: tiny model on a NeuronCore matches the reference (issues #1, #2, #4) 2026-10-21 13:22:59 +08:00
flash_mla Neuron: test suite for new boxes, device-vs-host differential tool 2026-10-21 09:46:29 +08:00
sampling Neuron: test suite for new boxes, device-vs-host differential tool 2026-10-21 09:46:29 +08:00
tile_kernels Neuron: test suite for new boxes, device-vs-host differential tool 2026-10-21 09:46:29 +08:00
nie_skip.py Neuron: test suite for new boxes, device-vs-host differential tool 2026-10-21 09:46:29 +08:00
run_all.sh Neuron: per-layer region graphs + vllm-neuron#71 NKI kernels (issues #10, #11, #13, #25) 2026-10-22 17:36:54 +08:00
setup_trn2.sh Neuron: test suite for new boxes, device-vs-host differential tool 2026-10-21 09:46:29 +08:00