UnifiedMemoryStreams cudaMallocManaged cudaStreamAttachManagedMem whole ./ ../ ../../Common CUDA Systems Integration OpenMP CUBLAS Multithreading Unified Memory CUDA Streams and Events CUDA CUBLAS OpenMP cluster multi-GPU Support Unified Memory UVM openMP Streams pthreads cublas true UnifiedMemoryStreams.cu OpenMP UVM CUBLAS 1:CUDA Basic Topics 1:CUDA Systems Integration 1:Unified Memory x86_64 linux x86_64 macosx windows7 arm ppc64le linux 3.0 exe