HMM (Heteregeneous Memory Management) is the name of an upcoming Linux kernel patchset, authored by Red Hat's Jerome Glisse. The patchset enables graphics processing unit (GPU) programmers (CUDA programmers, for example) to write code that treats "a pointer as a pointer": the same pointer values can be used in both central processing unit (CPU) and GPU code. This significantly simplifies both writing new CUDA programs00a0and porting older C/C++ (or even Fortran) programs to use GPU acceleration. In other words, malloc(3) can be called to allocate a buffer on the CPU, and that buffer's address can be passed to a CUDA kernel that runs on the GPU. HMM migrates the pages automatically. This session will cover the improved programming model,00a0some bandwidth and tuning considerations,00a0and possibly kernel implementation details (upon request, if time allows).