nsys-optimizer - Optimize CUDA Performance with Nsight Systems
Profiles CUDA and GPU simulation code with NVIDIA Nsight Systems, diagnoses bottlenecks, applies targeted optimizations, and verifies results.
Tags
Updated: 2026-09-28Capabilities
Typical Inputs
Typical Outputs
What this skill does
- Create profiling scenes
- Run sequential nsys profiles
- Extract kernel timing data
- Diagnose GPU bottlenecks
- Add NVTX annotations
- Understand algorithm dependencies
- Parallelize CUDA kernels
- Verify optimization correctness
Inputs
- CUDA simulation code
- GPU profiling scenes
- Build configuration
- Algorithm documentation
- Reference implementations
Outputs
- Nsight Systems report files
- Kernel timing data
- Modified CUDA code
- Performance comparisons
- Correctness test results
Requirements
- NVIDIA GPU
- CUDA environment
- NVIDIA Nsight Systems
- CUDA build toolchain
- Profiling-enabled build support