I tried General Matrix Multiply (GEMM) sample (https://software.intel.com/en-us/articles/gemm) on my pc.
But, if the matrix size is more than 2048 x 2048 program stops with black out.
Black out back in a few seconds and .
I think program stops at EnqueNDRange.
According to my calculations, there is no problem on the memory size, work item size, work group size, etc...
pc specifications
Core i5-4440
memory 4GB
Windows 7 64bit
Why can I increase matrix size?