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Main Authors: Pham, Thang Duc, Tummalapalli, Harikrishna, Bhuiyan, Fakhrul Hasan, Mayagoitia, Álvaro Vázquez, Simpson, Christine, Balin, Riccardo, Vishwanath, Venkatram, Keçeli, Murat
Format: Preprint
Published: 2026
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Online Access:https://arxiv.org/abs/2604.07681
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author Pham, Thang Duc
Tummalapalli, Harikrishna
Bhuiyan, Fakhrul Hasan
Mayagoitia, Álvaro Vázquez
Simpson, Christine
Balin, Riccardo
Vishwanath, Venkatram
Keçeli, Murat
author_facet Pham, Thang Duc
Tummalapalli, Harikrishna
Bhuiyan, Fakhrul Hasan
Mayagoitia, Álvaro Vázquez
Simpson, Christine
Balin, Riccardo
Vishwanath, Venkatram
Keçeli, Murat
contents The integration of Artificial Intelligence (AI) with High-Performance Computing (HPC) is transforming scientific workflows from human-directed pipelines into adaptive systems capable of autonomous decision-making. Large language models (LLMs) play a critical role in autonomous workflows; however, deploying LLM-based agents at scale remains a significant challenge. Single-agent architectures and sequential tool calls often become serialization bottlenecks when executing large-scale simulation campaigns, failing to utilize the massive parallelism of exascale resources. To address this, we present a scalable, hierarchical multi-agent framework for orchestrating high-throughput screening campaigns. Our planner-executor architecture employs a central planning agent to dynamically partition workloads and assign subtasks to a swarm of parallel executor agents. All executor agents interface with a shared Model Context Protocol (MCP) server that orchestrates tasks via the Parsl workflow engine. To demonstrate this framework, we employed the open-weight gpt-oss-120b model to orchestrate a high-throughput screening of the Computation-Ready Experimental (CoRE) Metal-Organic Framework (MOF) database for atmospheric water harvesting. The results demonstrate that the proposed agentic framework enables efficient and scalable execution on the Aurora supercomputer, with low orchestration overhead and high task completion rates. This work establishes a flexible paradigm for LLM-driven scientific automation on HPC systems, with broad applicability to materials discovery and beyond.
format Preprint
id arxiv_https___arxiv_org_abs_2604_07681
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Multi-Agent Orchestration for High-Throughput Materials Screening on a Leadership-Class System
Pham, Thang Duc
Tummalapalli, Harikrishna
Bhuiyan, Fakhrul Hasan
Mayagoitia, Álvaro Vázquez
Simpson, Christine
Balin, Riccardo
Vishwanath, Venkatram
Keçeli, Murat
Artificial Intelligence
The integration of Artificial Intelligence (AI) with High-Performance Computing (HPC) is transforming scientific workflows from human-directed pipelines into adaptive systems capable of autonomous decision-making. Large language models (LLMs) play a critical role in autonomous workflows; however, deploying LLM-based agents at scale remains a significant challenge. Single-agent architectures and sequential tool calls often become serialization bottlenecks when executing large-scale simulation campaigns, failing to utilize the massive parallelism of exascale resources. To address this, we present a scalable, hierarchical multi-agent framework for orchestrating high-throughput screening campaigns. Our planner-executor architecture employs a central planning agent to dynamically partition workloads and assign subtasks to a swarm of parallel executor agents. All executor agents interface with a shared Model Context Protocol (MCP) server that orchestrates tasks via the Parsl workflow engine. To demonstrate this framework, we employed the open-weight gpt-oss-120b model to orchestrate a high-throughput screening of the Computation-Ready Experimental (CoRE) Metal-Organic Framework (MOF) database for atmospheric water harvesting. The results demonstrate that the proposed agentic framework enables efficient and scalable execution on the Aurora supercomputer, with low orchestration overhead and high task completion rates. This work establishes a flexible paradigm for LLM-driven scientific automation on HPC systems, with broad applicability to materials discovery and beyond.
title Multi-Agent Orchestration for High-Throughput Materials Screening on a Leadership-Class System
topic Artificial Intelligence
url https://arxiv.org/abs/2604.07681