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For the parallel-in-time integration method Parareal, pipelining can be used to hide some of the cost of the serial correction step and improve its efficiency. The paper introduces a basic OpenMP implementation of pipelined Parareal and…

Mathematical Software · Computer Science 2019-11-12 Daniel Ruprecht

Photonic Crystal Surface Emitting Lasers (PCSEL)'s inverse design demands expert knowledge in physics, materials science, and quantum mechanics which is prohibitively labor-intensive. Advanced AI technologies, especially reinforcement…

Applied Physics · Physics 2024-03-11 Ceyao Zhang , Renjie Li , Cheng Zhang , Zhaoyu Zhang , Feng Yin

Lithography, transferring chip design masks to the silicon wafer, is the most important phase in modern semiconductor manufacturing flow. Due to the limitations of lithography systems, Extensive design optimizations are required to tackle…

Machine Learning · Computer Science 2024-05-07 Haoyu Yang , Haoxing Ren

Coarse Grained Reconfigurable Arrays (CGRAs) present both high flexibility and efficiency, making them well-suited for the acceleration of intensive workloads. Nevertheless, a key barrier towards their widespread adoption is posed by CGRA…

Software Engineering · Computer Science 2025-09-22 Yuxuan Wang , Cristian Tirelli , Giovanni Ansaloni , Laura Pozzi , David Atienza

Pipeline is a fundamental parallel programming pattern. Mainstream pipeline programming frameworks count on data abstractions to perform pipeline scheduling. This design is convenient for data-centric pipeline applications but inefficient…

Distributed, Parallel, and Cluster Computing · Computer Science 2022-02-03 Cheng-Hsiang Chiu , Tsung-Wei Huang , Zizheng Guo , Yibo Lin

This paper presents a novel repeater insertion algorithm for interconnect power minimization. The novelty of our approach is in the judicious integration of an analytical solver and a dynamic programming based method. Specifically, the…

Other Computer Science · Computer Science 2011-11-09 Xun Liu , Yuantao Peng , Marios C. Papaefthymiou

One year ago, we open-sourced DocETL, a declarative system for LLM-powered data processing that, as of March 2026, has 3.7K GitHub stars and users across domains (e.g., journalism, law, medicine, policy, finance, and urban planning). In…

Establishing a docker-based replicability infrastructure offers the community a great opportunity: measuring the run time of information retrieval systems. The time required to present query results to a user is paramount to the users…

Information Retrieval · Computer Science 2019-07-11 Sebastian Hofstätter , Allan Hanbury

Process rewards have been widely used in deep reinforcement learning to improve training efficiency, reduce variance, and prevent reward hacking. In LLM reasoning, existing works also explore various solutions for learning effective process…

Machine Learning · Computer Science 2026-05-21 Xian Wu , Kaijie Zhu , Ying Zhang , Lun Wang , Wenbo Guo

Training models to effectively use test-time compute is crucial for improving the reasoning performance of LLMs. Current methods mostly do so via fine-tuning on search traces or running RL with 0/1 outcome reward, but do these approaches…

In this paper, we leverage low-level compiler intermediate representations (IR) to improve code translation. Traditional transpilers rely on syntactic information and handcrafted rules, which limits their applicability and produces…

Programming Languages · Computer Science 2023-04-25 Marc Szafraniec , Baptiste Roziere , Hugh Leather , Francois Charton , Patrick Labatut , Gabriel Synnaeve

Code optimization is a challenging task requiring a substantial level of expertise from developers. Nonetheless, this level of human capacity is not sufficient considering the rapid evolution of new hardware architectures and software…

Integer programming (IP) is a general optimization framework widely applicable to a variety of unstructured and structured problems arising in, e.g., scheduling, production planning, and graph optimization. As IP models many provably hard…

Machine Learning · Computer Science 2020-07-22 Yunhao Tang , Shipra Agrawal , Yuri Faenza

The Extract, Transform, Load (ETL) workflow is fundamental for populating and maintaining data warehouses and other data stores accessed by analysts for downstream tasks. A major shortcoming of modern ETL solutions is the extensive need for…

Software Engineering · Computer Science 2025-08-01 Mattia Di Profio , Mingjun Zhong , Yaji Sripada , Marcel Jaspars

As one of their many applications, large language models (LLMs) have recently shown promise in automating register transfer level (RTL) code generation. However, conventional LLM decoding strategies, originally designed for natural…

Programming Languages · Computer Science 2025-07-04 Mohammad Akyash , Kimia Azar , Hadi Kamali

Language implementation frameworks, e.g., RPython and Truffle/Graal, are practical tools for creating efficient virtual machines, including a well-functioning just-in-time (JIT) compiler. It is demanding to support multitier JIT compilation…

Programming Languages · Computer Science 2022-01-20 Yusuke Izawa , Hidehiko Masuhara , Carl Friedrich Bolz-Tereick , Youyou Cong

DNN learning jobs are common in today's clusters due to the advances in AI driven services such as machine translation and image recognition. The most critical phase of these jobs for model performance and learning cost is the tuning of…

Distributed, Parallel, and Cluster Computing · Computer Science 2020-10-05 Isabelly Rocha , Nathaniel Morris , Lydia Y. Chen , Pascal Felber , Robert Birke , Valerio Schiavoni

Parameter-Efficient finetuning (PEFT) enhances model performance on downstream tasks by updating a minimal subset of parameters. Representation finetuning (ReFT) methods further improve efficiency by freezing model weights and optimizing…

Machine Learning · Computer Science 2025-11-17 Sirui Liang , Pengfei Cao , Jian Zhao , Cong Huang , Jun Zhao , Kang Liu

Engineering change orders (ECOs) in late stages make minimal design fixes to recover from timing shifts due to excessive IR drops. This paper integrates IR-drop-aware timing analysis and ECO timing optimization using reinforcement learning…

Hardware Architecture · Computer Science 2024-10-08 Wenjing Jiang , Vidya A. Chhabria , Sachin S. Sapatnekar

There is an increasing need for domain-specific reasoning in modern compilers. This has fueled the use of tailored intermediate representations (IRs) based on static single assignment (SSA), like in the MLIR compiler framework. Interactive…

Programming Languages · Computer Science 2024-07-08 Siddharth Bhat , Alex Keizer , Chris Hughes , Andrés Goens , Tobias Grosser