Make a function parameter page-locked? the parameter is 2D array pointer

Accelerated Computing CUDA CUDA Programming and Performance
1

Hi, I have a function that takes in a 2D array pointer as its function parameter, I want to use it in the function as page-locked memory.

This is the function.
extern “C” void SobelfilterGPU(int dir,int height,int width,float* input,float* output)
I want input and output both to be page-locked so I can use stream in the function.

I want it to have the property of this.
cudaMallocHost((void **)&h_DataA, DATA_SIZE);

but the input parameters are already allocated in some other C function with Malloc.
Any help would be appreciated, thanks.

2

Go modify that other C function to use cudaMallocHost.