Nvprof Internal profiling error 4190:38

Developer Tools Other Tools Visual Profiler and nvprof
1

I first compiled my code with nvcc, then when I profile my code with nvprof:

nvprof ./test

Outputs what I’d expect:

==5911== Profiling application: ./test
==5911== Profiling result:
            Type  Time(%)      Time     Calls       Avg       Min       Max  Name
 GPU activities:  100.00%  4.1506ms         1  4.1506ms  4.1506ms  4.1506ms  render(vec3*, int, int, vec3, vec3, vec3, vec3)
      API calls:   98.25%  690.10ms         1  690.10ms  690.10ms  690.10ms  cudaMallocManaged
                    0.62%  4.3625ms         1  4.3625ms  4.3625ms  4.3625ms  cudaDeviceSynchronize
                    0.52%  3.6506ms         1  3.6506ms  3.6506ms  3.6506ms  cudaFree
                    0.32%  2.2770ms         1  2.2770ms  2.2770ms  2.2770ms  cuDeviceGetPCIBusId
                    0.27%  1.8872ms         1  1.8872ms  1.8872ms  1.8872ms  cudaLaunchKernel
                    0.01%  101.70us       101  1.0060us     800ns  2.3000us  cuDeviceGetAttribute
                    0.00%  12.900us         2  6.4500us  1.3000us  11.600us  cuDeviceGet
                    0.00%  6.0000us         3  2.0000us     900ns  3.0000us  cuDeviceGetCount
                    0.00%  2.9000us         1  2.9000us  2.9000us  2.9000us  cuDeviceGetName
                    0.00%  1.3000us         1  1.3000us  1.3000us  1.3000us  cuDeviceTotalMem
                    0.00%  1.2000us         1  1.2000us  1.2000us  1.2000us  cudaGetLastError
                    0.00%  1.1000us         1  1.1000us  1.1000us  1.1000us  cuDeviceGetUuid

However when I introduce the --metrics flag, specifically to identify inst_fp_32 and inst_fp_64 I get the following:

==5856== NVPROF is profiling process 5856, command: ./test
==5856== Error: Internal profiling error 4190:38.
took 0.010927 seconds.
======== Profiling result:
No events/metrics were profiled.
======== Error: CUDA profiling error.

I’ve tried searching but can’t find anything related to 4190:38 and how I should go about fixing it.

Specifications:

  • Compiled with nvcc: release 11.5, V11.5.119
  • Arch is sm_61, for a gtx 1060 g6b
  • Using WSL2 - Ubuntu 20.04 LTS

Any help would greatly be appreciated. Everything runs and compiles as I’d expect it to, only nvprof seems to be giving me this error.

2

Hi,

Events and metrics profiling is not supported on the WSL configuration. This is documented in the Profiler Known Issues section of the profiler guide.