Encode zero cacheable blocks explicitly

2026-07-24 00:40:15 +08:00
parent 5c45944388
commit 8462afa56f
2 changed files with 50 additions and 2 deletions
--- a/runs/frontier-s3-real-v0/remap_hash_blocks.py
+++ b/runs/frontier-s3-real-v0/remap_hash_blocks.py
@@ -325,8 +325,13 @@ def materialize(args: argparse.Namespace, *, tokenizer: Any | None = None) -> di
                    "num_prefill_tokens": isl,
                    "num_decode_tokens": osl,
                    "session_id": sid,
-                    "block_hash_ids": "|".join(
-                        str(value) for value in cacheable_block_ids
+                    # "[]" is the explicit no-cacheable-block encoding accepted
+                    # by Frontier. An empty CSV field is treated as missing
+                    # metadata and rejected before scheduling.
+                    "block_hash_ids": (
+                        "|".join(str(value) for value in cacheable_block_ids)
+                        if cacheable_block_ids
+                        else "[]"
                    ),
                }
            )