CODEWITHSUNDEEP
c#cuda
rithm10
rithm10

Reputation: 63

C# nvtx nvidia nsight performance analysis

Is it possible to use the NVIDIA tools extension library, nvtx, from C#?

So far I have tried the following:

    [DllImport(@"C:\Program Files\NVIDIA Corporation\NvToolsExt\bin\x64\nvToolsExt64_1.dll", 
        CallingConvention = CallingConvention.Cdecl)] 
    public static extern void nvtxRangePushA(string message);

    [DllImport(@"C:\Program Files\NVIDIA Corporation\NvToolsExt\bin\x64\nvToolsExt64_1.dll",
        CallingConvention = CallingConvention.Cdecl)]
    public static extern void nvtxRangePop();

In my .cs files I have the following:

nvtxRangePushA("hi");

//some work

nvtxRangePop();

Doing so I get an error: 

An unhandled exception of type 'System.BadImageFormatException' occurred in myProgram.exe

Upvotes: 1

Views: 479

Answers (1)

Alexey Kamenev
Alexey Kamenev

Reputation: 318

The exception that you're seeing most likely due to different platforms of your code and NVTX (x86 vs x64). Make sure that your application is compiled using x64 platform.

Upvotes: 1

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