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Fix the scope of io_backend in NSATokenToKVPoolHost #20327

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Merged
hzh0425 merged 1 commit into from
Mar 12, 2026
+6 −2
Merged

Fix the scope of io_backend in NSATokenToKVPoolHost #20327

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8 changes: 6 additions & 2 deletions python/sglang/srt/mem_cache/memory_pool_host.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1208,7 +1208,7 @@ def _load_indexer_to_device_per_layer(
)
else:
raise ValueError(f"Unsupported layout: {self.layout}")
else:
elif io_backend == "direct":
if self.layout == "layer_first":
transfer_kv_direct(
src_layers=[self.index_k_with_scale_buffer[layer_id]],
Expand All @@ -1228,6 +1228,8 @@ def _load_indexer_to_device_per_layer(
)
else:
raise ValueError(f"Unsupported layout: {self.layout}")
else:
raise ValueError(f"Unsupported IO backend: {io_backend}")

def _backup_indexer_from_device_all_layer(
self, device_pool, host_indices, device_indices, io_backend
Expand Down Expand Up @@ -1258,7 +1260,7 @@ def _backup_indexer_from_device_all_layer(
)
else:
raise ValueError(f"Unsupported layout: {self.layout}")
else:
elif io_backend == "direct":
if self.layout == "layer_first":
transfer_kv_direct(
src_layers=device_pool.index_k_with_scale_buffer,
Expand All @@ -1277,6 +1279,8 @@ def _backup_indexer_from_device_all_layer(
)
else:
raise ValueError(f"Unsupported layout: {self.layout}")
else:
raise ValueError(f"Unsupported IO backend: {io_backend}")

def load_to_device_per_layer(
self,
Expand Down
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