CODEWITHSUNDEEP
cudansight
user3072616
user3072616

Reputation: 57

Nsight report: No kernel launches captured

I wrote a simple cuda program in a .cu file. When I want to see the performance of this program. I choose "Nsight->Start Performance Analysis...." Then choose "Profile CUDA Application". After launching the application for a while and finishing capture, the report say "No kernel launches captured" The summary report say" 1 error encountered". Can someone help me to figure out why this happened?

Upvotes: 2

Views: 991

Answers (1)

Qian Zhang
Qian Zhang

Reputation: 71

Do you call cudaDeviceSynchronize() or cudaDeviceReset() after all the CUDA work is done in your sample? Otherwise Nsight cannot guarantee that all the launch and memcpy record buffers are flushed.

Upvotes: 2

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