I use 150x150 grid size, 150 block size.
When I try to run
int *array = new int[arrayLen];
int *array2 = new int[array2Len];
for(int i=0;i<arrayLen;i++)
array[i]= oldArray[i];
I get a Exception in thread “main” jcuda.CudaException: CUDA_ERROR_ILLEGAL_ADDRESS.
If I don’t try to access array[i] I don’t get any problem.
So, it can allocate memory but it cannot access it?
You should read the programming guide concerning dynamic memory allocation:
[url]Programming Guide :: CUDA Toolkit Documentation
The heap size is limited. If you exceed that, your new allocation will fail and will return a NULL pointer. If you attempt to use that NULL pointer anyway you will get CUDA_ERROR_ILLEGAL_ADDRESS, since NULL is an illegal address.
As a safety check, test the returned pointer for NULL before using it.
If you are getting NULL, i.e. running out of memory, you can increase the heap size.
Thank you!