Chunhung Wang

DCGPU Customer Software Engineer with a strong focus on supporting Tier-1 customers in the APAC region. Experienced in AMD ROCm ecosystem and responsible for enabling and debugging across the full software stack including HIP/ROCr Runtime, kernel and driver-level integration, system monitoring tools, and performance-critical libraries such as VLLM, RCCL, CK, and hipBLASLt. Proven track record in large-scale model inference, GPU system optimization, and delivering technical solutions in collaboration with customer engineering and product teams.

Posts by Chunhung Wang

February 17, 2026

Adaptive Top-K Selection: Eliminating Performance Cliffs Across All K Values on AMD GPUs

Explore adaptive Top-K on MI300X! See how auto-selection and hardware optimizations like DPP and double buffering drive peak efficiency.

https://rocm.blogs.amd.com/software-tools-optimization/adaptive-topk/README.html

January 30, 2026

Debugging NaN Results in CK Tile GEMM: A rocgdb Detective Story

Learn GPU kernel debugging with rocgdb through a real case: tracing NaN outputs to a one-character typo in CK Tile GEMM

https://rocm.blogs.amd.com/software-tools-optimization/rocgdb-ck-tile/README.html

November 05, 2025

Day 0 Developer Guide: hipBLASLt Offline GEMM Tuning Script

Learn how to improve model performance with hipBLASLt offline tuning in our easy-to-use Day 0 tool for developers to optimize GEMM efficiency

https://rocm.blogs.amd.com/artificial-intelligence/hipblaslt_offline_tuning/README.html

July 25, 2025

Avoiding LDS Bank Conflicts on AMD GPUs Using CK-Tile Framework

This blog shows how CK-Tile’s XOR-based swizzle optimizes shared memory access in GEMM kernels on AMD GPUs by eliminating LDS bank conflicts

https://rocm.blogs.amd.com/software-tools-optimization/lds-bank-conflict/README.html