Known Issues

• Nsight Python launches the application python script again with NVIDIA Nsight Compute CLI (ncu) for each @nsight.analyze.kernel decorator.

• Kernels launched from a subprocess which is created within the annotated region will not be profiled.

• For the nsight.analyze.kernel’s replay_mode="range" option, only a subset of CUDA APIs are supported within the annotated range. If an unsupported API call is detected, an error will be reported. For details on supported APIs, refer to the NVIDIA Nsight Compute Profiling Guide. In such cases, you can either switch to replay_mode="kernel" or modify the code to exclude the unsupported API from the annotated range.

• Nested annotations (using nsight.annotate within another nsight.annotate context) are not supported and may lead to incorrect profiling results.