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refine context length (#1813)

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### What problem does this PR solve?

#1594
### Type of change

- [x] Performance Improvement
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Kevin Hu 2024-08-05 18:22:01 +08:00 • committed by GitHub
parent 5b013da4d6
commit 5650442b0b
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graphrag/index.py
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@ -68,7 +68,7 @@ def build_knowlege_graph_chunks(tenant_id: str, chunks: List[str], callback, ent
llm_bdl = LLMBundle(tenant_id, LLMType.CHAT)
ext = GraphExtractor(llm_bdl)
left_token_count = llm_bdl.max_length - ext.prompt_token_count - 1024
left_token_count = llm_bdl.max_length * 0.4
left_token_count = max(llm_bdl.max_length * 0.8, left_token_count)
assert left_token_count > 0, f"The LLM context length({llm_bdl.max_length}) is smaller than prompt({ext.prompt_token_count})"