claude 089b9ff4e2 test: fix CUB compat tests + probe corex built-in CUB
v1 failures analyzed:
  1. __shfl_down_sync: load_inline bug (not hardware issue) — fixed with file-based compile
  2. CCCL 3.6: 'CUDA < 12 not supported' + variadic functions in device code
     → corex reports CUDA 10.2, corex clang rejects variadic in device code

v2 tests:
  [1/4] __shfl_down_sync — does ivcore10 support warp shuffle?
  [2/4] manual block reduce — SMEM + shuffle without CUB
  [3/4] cub::BlockReduce using COREX's own CUB (/usr/local/corex/include/cub/)
  [4/4] cub::BlockReduce using CCCL 3.6 with CCCL_IGNORE_DEPRECATED_CUDA_BELOW_12

probe_corex_cub.sh — discovers corex CUB version, compiles standalone test

Run on real machine:
  bash qwen3_6_scripts/probe_corex_cub.sh
  python3 qwen3_6_scripts/test_cub_compat_v2.py
2026-08-14 10:11:10 +00:00
2026-08-07 08:43:51 +00:00
2026-07-30 17:03:23 +08:00
2026-08-13 02:29:40 +00:00

project_6

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