simpleAssert cudaDeviceSynchronize cudaGetErrorString whole ./ ../ ../../../Common Assert GPGPU true simpleAssert.cu 1:CUDA Basic Topics sm35 sm37 sm50 sm52 sm53 sm60 sm61 sm70 sm72 sm75 sm80 sm86 sm87 x86_64 linux windows7 arm sbsa ppc64le linux all exe