Problem with pgprof

OpenACC and CUDA Fortran
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Henrique Rennó
Posts: 27
Joined: Nov 21 2019

Problem with pgprof

Post by Henrique Rennó » Thu Mar 26, 2020 5:55 pm

Hello,

I have an application with some CUDA kernels that runs without problems. However, I am not able to profile it with pgprof that returns the following message:

0: ALLOCATE: 0 bytes requested; status = 0(no error)

What could be the reason for this message? I checked all the variables that are allocated in the device, and they are all correctly allocated.

Thanks

mkcolg
Posts: 8319
Joined: Jun 30 2004

Re: Problem with pgprof

Post by mkcolg » Fri Mar 27, 2020 11:18 am

Hi Henrique,

What CUDA version did you build with and what CUDA driver version do you have?

It's possible that if there's a CUDA mismatch, this could cause this type of error.

Note that you may consider moving to using NVIDIA's Nsight Systems profiler (https://developer.nvidia.com/nsight-systems). Nvprof (pgprof is really a rebranded version of nvprof), is being discontinued and replaced by Nsight.

-Mat

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