Hello,
I have a few questions regarding cudaMallocPitch:
-
I’m trying to allocate a 1024 by 1024 array of floats on the device. Can I do this, or is 1024 by 1024 too large? (this is 4MB right?)
-
Assuming I can do this, and that cudaMallocPitch is the best way, Is there a way to access row r, column c, in a single line, without using float* row=
The programming guide shows this:
cudaMallocPitch((void**)&devPtr, &pitch, width * sizeof(float), height);
myKernel<<<100, 192>>>(devPtr, pitch);
// device code
global void myKernel(float* devPtr, int pitch)
{
for (int r = 0; r < height; ++r) {
float* row = (float*)((char*)devPtr + r * pitch);
for (int c = 0; c < width; ++c) {
float element = row[c];
}
}
}
Thanks in advance for your help,
Joe