--- title: Under the HAT: Empowering GPU Acceleration for Java description: Heterogeneous Accelerator Toolkit (HAT) is a new parallel programming framework for Java that enables GPU acceleration of data-parallel workloads. Built on top... canonical: https://daily.dev/posts/under-the-hat-empowering-gpu-acceleration-for-java-z0zevhych twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Under the HAT: Empowering GPU Acceleration for Java | daily.dev og:description: Heterogeneous Accelerator Toolkit (HAT) is a new parallel programming framework for Java that enables GPU acceleration of data-parallel workloads. Built on top... og:url: https://daily.dev/posts/under-the-hat-empowering-gpu-acceleration-for-java-z0zevhych og:image: https://api.daily.dev/og/posts/z0ZevhycH.png og:image:alt: Under the HAT: Empowering GPU Acceleration for Java og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Under the HAT: Empowering GPU Acceleration for Java **[Inside Java](https://daily.dev/sources/inside_java)** · 1 min read · 0 upvotes · 0 comments ## Summary Heterogeneous Accelerator Toolkit (HAT) is a new parallel programming framework for Java that enables GPU acceleration of data-parallel workloads. Built on top of OpenJDK's Babylon code-reflection APIs, HAT can transform Java code into CUDA or OpenCL, and includes a runtime system for automatic code management, data handling, and migration. A JavaOne 2026 talk covers the core HAT API components and demonstrates how developers can offload workloads to GPUs for significant performance gains. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Optimizing GPU Programs from Java using Babylon and HAT](https://daily.dev/posts/optimizing-gpu-programs-from-java-using-babylon-and-hat-ynbfqkbv8) · Inside Java · 0 upvotes · 0 comments - [TornadoVM 2.0 Brings Automatic GPU Acceleration and LLM support to Java](https://daily.dev/posts/tornadovm-2-0-brings-automatic-gpu-acceleration-and-llm-support-to-java-wdpch8rhk) · InfoQ · 2 upvotes · 0 comments --- Tags: [#java](https://daily.dev/tags/java), [#gpu](https://daily.dev/tags/gpu), [#jvm](https://daily.dev/tags/jvm) [View this post on daily.dev](https://daily.dev/posts/under-the-hat-empowering-gpu-acceleration-for-java-z0zevhych) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Under the HAT: Empowering GPU Acceleration for Java","url":"https://daily.dev/posts/under-the-hat-empowering-gpu-acceleration-for-java-z0zevhych","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/under-the-hat-empowering-gpu-acceleration-for-java-z0zevhych"},"datePublished":"2026-07-30T06:57:27.863Z","dateModified":"2026-07-30T07:13:43.854Z","description":"Heterogeneous Accelerator Toolkit (HAT) is a new parallel programming framework for Java that enables GPU acceleration of data-parallel workloads. 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