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Hardware synthesis is a general term used to refer to the processes involved in automatically generating a hardware design from its specification. High-level synthesis (HLS) could be defined as the translation from a behavioral description…

Other Computer Science · Computer Science 2019-05-07 Issam Damaj

High-level synthesis (HLS) tools have brought FPGA development into the mainstream, by allowing programmers to design architectures using familiar languages such as C, C++, and OpenCL. While the move to these languages has brought…

Hardware Architecture · Computer Science 2019-10-11 Johannes de Fine Licht , Torsten Hoefler

High-Level Synthesis (HLS) improves IC development productivity by enabling hardware design from C-like languages. However, strict coding constraints and design-specific optimizations limit its widespread adoption. While recent efforts…

Hardware Architecture · Computer Science 2026-04-22 Runkai Li , Jia Xiong , Xiuyuan He , Jieru Zhao , Jiaqi Lv , Haowen Fang , Lei Qi , Xi Wang

In this work, we present a new approach to high level synthesis (HLS), where high level functions are first mapped to an architectural template, before hardware synthesis is performed. As FPGA platforms are especially suitable for…

Hardware Architecture · Computer Science 2016-06-22 Shaoyi Cheng , John Wawrzynek

High-level synthesis (HLS) is an automated design process that transforms high-level code into hardware designs, enabling the rapid development of hardware accelerators. HLS relies on pragmas, which are directives inserted into the source…

Machine Learning · Computer Science 2025-05-09 Yunsheng Bai , Atefeh Sohrabizadeh , Zijian Ding , Rongjian Liang , Weikai Li , Ding Wang , Haoxing Ren , Yizhou Sun , Jason Cong

High-level synthesis (HLS) has been widely adopted as it significantly improves the hardware design productivity and enables efficient design space exploration (DSE). Existing HLS tools are built using compiler infrastructures largely based…

Programming Languages · Computer Science 2021-12-23 Hanchen Ye , Cong Hao , Jianyi Cheng , Hyunmin Jeong , Jack Huang , Stephen Neuendorffer , Deming Chen

High-Level Synthesis has introduced reconfigurable logic to a new world -- that of software development. The newest wave of HLS tools has been successful, and the future looks bright. But is HLS the end-all-be-all to FPGA acceleration? Is…

Hardware Architecture · Computer Science 2021-04-07 Pedro Filipe Silva , João Bispo , Nuno Paulino

High-level synthesis (HLS) accelerates hardware design by enabling the automatic translation of high-level descriptions into efficient hardware implementations. However, debugging HLS code is a challenging and labor-intensive task,…

Software Engineering · Computer Science 2025-07-30 Jing Wang , Shang Liu , Yao Lu , Zhiyao Xie

Implementing an application on a FPGA remains a difficult, non-intuitive task that often requires hardware design expertise in a hardware description language (HDL). High-level synthesis (HLS) raises the design abstraction from HDL to…

Software Engineering · Computer Science 2014-08-26 Janarbek Matai , Dustin Richmond , Dajung Lee , Ryan Kastner

High-level synthesis (HLS) transforms an algorithmic description of hardware from a higher abstraction (e.g., C/C++) into a register-transfer level (RTL) design, offering reduced development time and greater flexibility in design space…

Hardware Architecture · Computer Science 2026-04-27 Xiaofeng Zhou , Linfeng Du , Guangyu Hu , Sharad Sinha , Hongce Zhang , Wei Zhang

High-level synthesis (HLS) is a design flow that leverages modern language features and flexibility, such as complex data structures, inheritance, templates, etc., to prototype hardware designs rapidly. However, exploring various design…

Hardware Architecture · Computer Science 2024-03-19 Md Rubel Ahmed , Toshiaki Koike-Akino , Kieran Parsons , Ye Wang

Embedded systems continue to rapidly proliferate in diverse fields, including medical devices, autonomous vehicles, and more generally, the Internet of Things (IoT). Many embedded systems require application-specific hardware components to…

Hardware Architecture · Computer Science 2024-04-24 Yuchao Liao , Tosiron Adegbija , Roman Lysecky

High-Level Synthesis (HLS) is a pivotal electronic design automation (EDA) technology that enables the generation of hardware circuits from high-level language descriptions. A critical step in HLS is Design Space Exploration (DSE), which…

Hardware Architecture · Computer Science 2026-03-03 Lei Xu , Shanshan Wang , Chenglong Xiao

High-Level Synthesis (HLS) frameworks allow to easily specify a large number of variants of the same hardware design by only acting on optimization directives. Nonetheless, the hardware synthesis of implementations for all possible…

Hardware Architecture · Computer Science 2021-01-05 Lorenzo Ferretti , Jihye Kwon , Giovanni Ansaloni , Giuseppe Di Guglielmo , Luca Carloni , Laura Pozzi

High-Level Synthesis (HLS) plays a crucial role in modern hardware design by transforming high-level code into optimized hardware implementations. However, progress in applying machine learning (ML) to HLS optimization has been hindered by…

Hardware Architecture · Computer Science 2025-08-05 Zedong Peng , Zeju Li , Mingzhe Gao , Qiang Xu , Chen Zhang , Jieru Zhao

High-level synthesis (HLS) is a widely used tool in designing Field Programmable Gate Array (FPGA). HLS enables FPGA design with software programming languages by compiling the source code into an FPGA circuit. The source code includes a…

Machine Learning · Computer Science 2025-03-17 Weikai Li , Ding Wang , Zijian Ding , Atefeh Sohrabizadeh , Zongyue Qin , Jason Cong , Yizhou Sun

The increasing complexity and demand for faster, energy-efficient hardware designs necessitate innovative High-Level Synthesis (HLS) methodologies. This paper explores the potential of Large Language Models (LLMs) to streamline or replace…

Hardware Architecture · Computer Science 2024-08-21 Yuchao Liao , Tosiron Adegbija , Roman Lysecky

High-level synthesis (HLS) has freed the computer architects from developing their designs in a very low-level language and needing to exactly specify how the data should be transferred in register-level. With the help of HLS, the hardware…

Hardware Architecture · Computer Science 2021-11-23 Atefeh Sohrabizadeh , Yunsheng Bai , Yizhou Sun , Jason Cong

Large language models (LLMs) have catalyzed an upsurge in automatic code generation, garnering significant attention for register transfer level (RTL) code generation. Despite the potential of RTL code generation with natural language, it…

Hardware Architecture · Computer Science 2024-08-14 Chenwei Xiong , Cheng Liu , Huawei Li , Xiaowei Li

This paper introduces Natural-Level Synthesis, an innovative approach for generating hardware using generative artificial intelligence on both the system level and component-level. NLS bridges a gap in current hardware development…

Hardware Architecture · Computer Science 2025-04-04 Kaiyuan Yang , Huang Ouyang , Xinyi Wang , Bingjie Lu , Yanbo Wang , Charith Abhayaratne , Sizhao Li , Long Jin , Tiantai Deng
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