[P] Built a portable GPU ISA after reading too many architecture manuals [P]
Our take
The recent development of WAVE, a portable GPU Intermediate Language (IL) created by O. Abraham, is a notable advancement in the realm of GPU architecture and software development. After immersing himself in an extensive array of GPU architecture documents—over 5,000 pages spanning four major vendors—Abraham identified a commonality in the way these architectures operate. His realization that the same foundational principles are often labeled differently across various platforms led to the creation of a unified specification that streamlines GPU programming. This innovation could significantly alter how developers interact with GPU technology, making it more accessible and efficient. As we explore the implications of WAVE, it's useful to consider it alongside other transformative initiatives in the field, such as the [Augmented Equivariant Mesh Networks for Anatomical Mesh Segmentation (ICML 2026 Workshops) [R]](/post/augmented-equivariant-mesh-networks-for-anatomical-mesh-segm-cmpmy0gl60ldds0gl3514yj1f) and the [Tomesphere, 3M paper pages with TLDRs, peer reviews, code, and a SPECTER2 similarity graph [P]](/post/tomesphere-3m-paper-pages-with-tldrs-peer-reviews-code-and-a-cmpmy041i0lcns0gls5ep7hia), which also aim to democratize complex technologies for broader use.
WAVE's toolchain allows developers to write a kernel once and compile it into a portable binary, which can then be translated into various backends, including Metal, PTX, HIP, or SYCL. This capability not only simplifies the development process but also enhances the portability of applications across different hardware ecosystems. The verified performance of the same binary on platforms like Apple M4 Pro, NVIDIA T4, and AMD MI300X demonstrates a significant leap towards interoperability in GPU computing. Abraham's work, particularly his collaboration with co-author Onyinye to integrate PyTorch, is a testament to how collaborative efforts can yield powerful tools that bridge the gap between different hardware architectures. This trend towards cross-platform compatibility is essential as more developers seek to maximize the potential of AI and machine learning applications across varied environments.
The significance of WAVE extends beyond technical specifications; it embodies a progressive vision for the future of GPU programming. By reducing the complexity historically associated with developing for multiple architectures, WAVE empowers developers to focus on innovation and productivity rather than being bogged down by compatibility issues. This shift aligns with the growing demand for more human-centered design in technology, where ease of use and accessibility take precedence. As we have seen in other areas, such as the evolution of Stop Using LLMs Like Giant Problem Solvers, simplifying complex systems can lead to enhanced user outcomes and broader adoption of advanced technologies.
Looking ahead, the introduction of WAVE raises important questions about the future landscape of GPU programming. Will this toolset inspire further innovations that prioritize simplicity and accessibility? As developers continue to explore new ways to harness the power of GPUs, it will be crucial to monitor how tools like WAVE influence software development practices and drive the adoption of more inclusive programming paradigms. The ongoing evolution of GPU architecture, combined with advancements like WAVE, could very well lead us into an era where the barriers to entry for high-performance computing are significantly lowered, fostering a new generation of innovative applications that leverage the power of AI and machine learning.
I’ve been reading GPU architecture docs in my free time. NVIDIA PTX, AMD ISA reference guides, Intel Xe, reverse-engineered Apple GPU stuff. Over 5,000 pages across 16 microarchitectures.
After a while you notice all four vendors are doing the same 11 things with different names. So I wrote a spec that covers all of them and built a toolchain around it. It’s called WAVE. You write a kernel once, it compiles to a portable binary, then thin backends translate it to Metal, PTX, HIP, or SYCL.
Same binary verified on Apple M4 Pro, NVIDIA T4, and AMD MI300X. My co-author Onyinye built PyTorch integration and got identical training results across all backends.
Please star on GitHub: https://github.com/Oabraham1/wave
Preprint: https://arxiv.org/abs/2603.28793
Read full docs and how I built everything: https://wave.ojima.me
pip install wave-gpu
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