What is the memory usage of GPU driver?
Before I start any CUDA calculations, the amount of free and allocated memory is typically like this:
Free and allocated memory at start is 2872 MB, 198 MB
(I calculate it like this)
size_t free, total, allocated; free = 0; total = 0; cudaMemGetInfo(&free, &total); allocated = total - free; mexPrintf("Free and allocated memory during calculation of denoised data new is %lu MB, %lu MB \n",free/(1024*1024), allocated/(1024*1024));
At first I thought that I’ve forgotten to free some variables but I get the same result after a reboot. How much global memory does the GPU driver use? I use a GTX 580 with 3 GB of memory.