Exception in thread "main" jcuda.CudaException: CUDA_ERROR_FILE_NOT_FOUND

Byte-Welt - Projekte / Projects JCuda
1

As titled, java cant see my ptx file

I even specified the complete path

cuModuleLoad(module, „H:\Dokumente und Einstellungen\gbarbieri\Eigene Dateien\NetBeansProjects\Cuda sqrt\src\cuda\sqrt\CudaSqrt.ptx\CudaSqrt.ptx“);

But it does still not work

2

I modified the CudaVectorAdd example as following

// Create the PTX file by calling the NVCC
//String ptxFileName = preparePtxFile(„H:\Dokumente und Einstellungen\gbarbieri\Eigene Dateien\NetBeansProjects\Cuda sqrt\src\cuda\sqrt\src\CudaSqrt.cu“);
String ptxFileName = „H:\CudaSqrt.ptx“;

    // Initialize the driver and create a context for the first device.
    cuInit(0);
    CUdevice device = new CUdevice();
    cuDeviceGet(device, 0);
    CUcontext context = new CUcontext();
    cuCtxCreate(context, 0, device);
    
    // Load the ptx file.
    CUmodule module = new CUmodule();
    cuModuleLoad(module, ptxFileName);
    
    // Obtain a function pointer to the "sqrt" function.
    CUfunction function = new CUfunction();
    cuModuleGetFunction(function, module, "spqr");

And also the ptx file

//extern „C“
global void sqrt(int n, float a) {
int i = blockIdx.x * blockDim.x + threadIdx.x;
if (i<n)
a* = a**+1;
}

Moved in the root (H:\CudaSqrt.ptx) because nvcc doesnt like spaces within the name…

3

Hi

Apart from
cuModuleGetFunction(function, module, “spqr”); // It’s named sqrt
this should be right.

So does it work now? I probably never tried to compile a PTX from a path with spaces…

bye
Marco

4

[QUOTE=Marco13]Hi

Apart from
cuModuleGetFunction(function, module, „spqr“); // It’s named sqrt
this should be right.

So does it work now? I probably never tried to compile a PTX from a path with spaces…

bye
Marco[/QUOTE]

Yep, now it is working…

I guess you should put the path in some kind of containers like " or ', but then it is java to complain…
As you saw, I solved by moving it on the root of my hd ^^

Thanks :slight_smile: