Posts by Hang Yang
AMD GPU Programming From Beginner to Expert (Part 1) - TensorDescriptor in Composable Kernel (CK)
- 25 March 2026
Writing efficient GPU kernels requires more than knowing the API—it demands a deep understanding of the underlying concepts, from GPU architecture to low-level programming patterns. This blog series demystifies GPU kernel programming on AMD GPUs by breaking down common kernels into their fundamental building blocks. Rather than treating GPU programming as a black box, each blog focuses on a specific concept, starting from first principles and building up to complete implementations with simple, insightful example code. In this blog, you will learn one of the most fundamental concepts in Composable Kernel (CK): the TensorDescriptor—a powerful abstraction for managing multi-dimensional data layouts and transformations. By the end of this series, you will be able to not only understand existing GPU kernels but also design and optimize your own.