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An LLM-Tool Compiler for Fused Parallel Function Calling

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arxiv 2405.17438 v1 pith:YOLGPNFZ submitted 2024-05-07 cs.PL cs.AIcs.LG

classification cs.PLcs.AIcs.LG
keywords compilerfunctioncallingcostsllm-tooloperationsparalleltask
verification ladder T0 review T1 audit T2 compute T3 formal

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State-of-the-art sequential reasoning in Large Language Models (LLMs) has expanded the capabilities of Copilots beyond conversational tasks to complex function calling, managing thousands of API calls. However, the tendency of compositional prompting to segment tasks into multiple steps, each requiring a round-trip to the GPT APIs, leads to increased system latency and costs. Although recent advancements in parallel function calling have improved tool execution per API call, they may necessitate more detailed in-context instructions and task breakdown at the prompt level, resulting in higher engineering and production costs. Inspired by the hardware design principles of multiply-add (MAD) operations, which fuse multiple arithmetic operations into a single task from the compiler's perspective, we propose LLM-Tool Compiler, which selectively fuses similar types of tool operations under a single function at runtime, presenting them as a unified task to the LLM. This selective fusion inherently enhances parallelization and efficiency. Benchmarked on a large-scale Copilot platform, LLM-Tool Compiler achieves up to four times more parallel calls than existing methods, reducing token costs and latency by up to 40% and 12%, respectively.

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Forward citations

Cited by 5 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. GraphTool-Instruction: Revolutionizing Graph Reasoning in LLMs through Decomposed Subtask Instruction

    cs.LG 2024-12 conditional novelty 6.0 of 10

    Decomposing graph reasoning into graph extraction, tool name identification, and tool parameter extraction subtasks yields large accuracy gains on small LLMs and a fine-tuned 8B model that competes with GPT-4o.

  2. Efficient Prompt Compression with Evaluator Heads for Long-Context Transformer Inference

    cs.CL 2025-01 conditional novelty 5.0 of 10

    EHPC uses a handful of attention heads, selected via a synthetic needle-in-a-haystack test, to compress long prompts and speed up LLM inference while retaining task performance.

  3. Less is More: Optimizing Function Calling for LLM Execution on Edge Devices

    cs.PF 2024-11 conditional novelty 5.0 of 10

    Selectively reducing the number of tools presented to an LLM, using embedding similarity over individual tools or clusters, improves function-calling success and efficiency on edge devices.

  4. LLM-based Agentic Reasoning Frameworks: A Survey from Methods to Scenarios

    cs.AI 2025-08 conditional novelty 4.0 of 10

    A survey that classifies LLM-based agent reasoning frameworks into single-agent, tool-based, and multi-agent types and reviews their use across scientific, medical, software, and social domains.

  5. Toward Efficient Agents: Memory, Tool learning, and Planning

    cs.AI 2026-01 conditional novelty 3.0 of 10

    A survey that organizes efficiency techniques for LLM agents into memory, tool learning, and planning, and consolidates benchmarks and metrics for measuring cost-performance trade-offs.

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