arXiv AI

LLM Agent-Based Design of RISC-V CPUs with FPGA-in-the-Loop Evaluation

The paper introduces a development environment where large language model (LLM) agents design RISC‑V CPUs that are implemented on an FPGA for real‑time performance evaluation. Using on‑board measurements, the approach guides design decisions and accelerates evaluation, achieving a 9.6× speedup over single‑threaded RTL simulation. In a case study, FPGA measurements uncovered long‑run performance degradation that short diagnostic runs missed, leading to candidate selection, root‑cause analysis, and a fix.

arXiv AI
Sep 7

MaxKernel: Agentic Kernel Generation for TPUs

MaxKernel is a multi‑agent system designed to generate high‑performance custom kernels for TPUs. It offers three paradigms: a Human‑in‑the‑Loop agent for collaborative design, an Autonomous agent that runs a fully automated optimization loop, and a Graph‑Based Autonomous Search for global exploration. All paradigms share specialized sub‑agents for planning, implementation, debugging, testing, and profiling, and the system consistently matches expert hand‑tuned baselines on the JaxBench suite and real‑world workloads.

By Shangkun Wang, Nina Cai, Charles Hoong, Julian Walker, Gerson Kroiz, George Vanica, Deepak Patil, Andi Gavrilescu, Hassan Sipra, Sethu Sankaran
arXiv AI
Sep 21

Can Agents Design Better Chips with a Higher Level Abstraction?

Large Language Model agents are being explored for chip design, but most methods work directly at RTL. This study compares Direct RTL Design, Agent-based HLS Design, Post-Compiler HLS Refinement, and Post-HLS RTL Refinement, and proposes a combined workflow called Agent-based HLS with RTL Refinement (AHRR). Using FPGAs for evaluation, AHRR achieves a 2.6× geometric‑mean speedup over Direct RTL Design across an 11‑task benchmark suite, demonstrating that higher‑level abstractions and subsequent RTL refinement can improve chip design efficiency.

By Zijian Ding, Yang Zou, Yizhou Sun, Jason Cong
arXiv AI
Sep 11

KernelGenBench: Can LLMs and Agents Write Efficient Kernels Across Operator Sources and Hardware Platforms?

KernelGenBench is a unified benchmark that evaluates large language models and agentic systems for generating efficient Triton kernels across diverse operator sources and hardware platforms. It covers 210 operators from PyTorch ATen, vLLM, and cuBLAS, and tests a 110‑operator subset on six different chips, consuming over 15 billion tokens in evaluation. The study finds that no single method dominates across all sources and platforms, with significant variations in correctness and performance depending on the operator source and hardware, and that agentic approaches require millions of tokens per successful operator.

By Peiyu Zang, Jian Tao, Jialing Zhang, Yichen Yuan, Wentao Zhang, Guang Liu, Yonghua Lin
arXiv AI
Oct 15

Agentic Architect: An Agentic AI Framework for Architecture Design Exploration and Optimization

Agentic Architect is a new framework that uses large language models to automatically evolve and optimize CPU microarchitectural designs. Starting from a seed design, the LLM proposes code changes, which are compiled, simulated, and evaluated against performance, area, and power constraints, with results feeding back into subsequent iterations. The framework was tested on prefetching, cache replacement, and branch prediction, achieving notable speedups and area reductions compared to state‑of‑the‑art designs.

By Vasilis Kypriotis, Alexander Blasberg, Alexandros Moiras, Dimitrios Skarlatos
Hugging Face Trending Papers
Sep 28

AgentPerfBench: A Benchmarking and Evaluation Suite for Inference Performance of Agentic LLMs

AgentPerfBench is a new benchmarking suite designed to evaluate the inference performance of agentic large language models (LLMs) that handle multi‑turn, tool‑using, and context‑expanding tasks. It builds on real traces from agentic benchmarks such as SWE‑Bench and TerminalBench, and generates synthetic profiles that reflect realistic input/output lengths and turn counts. The suite also provides kernel‑level Nsight Compute traces and a multi‑dimensional roofline model to identify hardware bottlenecks and quantify the gap between traditional chat benchmarks and agentic workloads.

arXiv AI
Oct 9

Closed-loop evaluation of LLM agents for embedded software development

The paper introduces a benchmark for evaluating large language model (LLM) agents in closed‑loop embedded software development. It provides five embedded‑control tasks with realistic build‑and‑runtime feedback, testing agents that must translate requirements into code, self‑verify, and iterate until device behavior meets specifications. Seven GPT‑family and Qwen‑family models were evaluated across four feedback scenarios, revealing that gpt‑5.4 leads in pass rate but does not fully saturate the benchmark, while qwen3.5‑27B is the strongest local model and smaller local models perform poorly.

By Jorge Garc\'ia-Carrasco, Sergio Garc\'ia-Carrasco, Alejandro Mat\'e, Juan Trujillo
arXiv AI
Aug 10

HLSmith: An Expert-Guided Agentic Framework for C/C++-to-HLS Translation

arXiv:2608. 06791v1 Announce Type: cross Abstract: Application-specific FPGA accelerators offer substantial performance and energy-efficiency gains across many application domains, but developing them is costly, often requiring months of specialized effort.

By Yuebo Luo, Ahmad Sedigh Baroughi, Philip Stachura, Le Chen, Venkatram Vishwanath, Zhenman Fang, Caiwen Ding
arXiv Machine Learning
Aug 26

QiMeng-ChipV-RTL: Exploiting Information Locality for IP-level Verilog Generation

QiMeng-ChipV-RTL is a multi‑agent framework that tackles the challenges of generating Register‑Transfer Level (RTL) code for industrial IP‑level hardware design. By partitioning long design documents into short, localized tasks and using hierarchical planning, localized code generation, interface‑consistent merging, and AST‑guided debugging, it scales to complex specifications. Experiments on the RealBench benchmark show ChipV-RTL achieves a 45.0% pass rate, outperforming state‑of‑the‑art LLMs and agents which reach only 21.6%.

By Hanqi Lyu, Di Huang, Yaoyu Zhu, Kangcheng Liu, Bohan Dou, Chongxiao Li, Pengwei Jin, Shuyao Cheng, Rui Zhang, Zidong Du, Qi Guo, Xing Hu, Yunji Chen