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DOE OSTI · 2998259

LLM Benchmarking with LLaMA2: Evaluating Code Development Performance Across Multiple Programming Languages

Diehl, Patrick [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000339228419)·Nader, Noujoud [Louisiana State Univ., Baton Rouge, LA (United States)]·Moraru, Maxim [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:000000017213089X)·Brandt, Steven R. [Louisiana State Univ., Baton Rouge, LA (United States)]
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Abstract

The rapid evolution of large language models (LLMs) has opened new possibilities for automating various tasks in software development. This paper evaluates the capabilities of the LLaMA 2-70B model in automating these tasks for scientific applications written in commonly used programming languages. Using representative test problems, we assess the model's capacity to generate code, documentation, and unit tests, as well as its ability to translate existing code between commonly used programming languages. Our comprehensive analysis evaluates the compilation, runtime behavior, and correctness of the generated and translated code. Additionally, we assess the quality of automatically generated code, documentation, and unit tests. Here, our results indicate that while LLaMA 2-70B frequently generates syntactically correct and functional code for simpler numerical tasks, it encounters substantial difficulties with more complex, parallelized, or distributed computations, requiring considerable manual corrections. We identify key limitations and suggest areas for future improvements to better leverage AI-driven automation in scientific computing workflows.

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97 MATHEMATICS AND COMPUTINGLLaMA 2-70Blarge language modelsprogramming languagessoftware development

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Diehl, Patrick [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000339228419), Nader, Noujoud [Louisiana State Univ., Baton Rouge, LA (United States)], Moraru, Maxim [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:000000017213089X), Brandt, Steven R. [Louisiana State Univ., Baton Rouge, LA (United States)]. 2025-07-07. LLM Benchmarking with LLaMA2: Evaluating Code Development Performance Across Multiple Programming Languages. https://doi.org/10.1615/jmachlearnmodelcomput.2025058957

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