CUPTI unified and driver API

Developer Tools CUPTI – CUDA Profiler Tools Interface
1

Why aren’t CUPTI unified counters updated when calling cuMemAllocManaged (only cudaMallocManaged)?
Would intercepting cuMemAllocManagedand and calling cudaMallocManaged (eliminating recursions) work?

2

Hi menny,
CUPTI counters are updated for both cuMemAllocManaged() and cudaMallocManaged() APIs.

Please note that migrations and page faults are triggered only after the managed allocations are accessed on the CPU/GPU.

So that is when CUPTI counters will get updated.

Can you share a snippet of code where you see CUPTI counters not getting updated with cuMemAllocManaged() APIs?

3

Sorry for not replying - I left this project for a while. Anyway, CUPTI is no longer needed for my work, we just need counters and we get all this information from nvprof and Nsight.