Pak Markthub is a senior software engineer at NVIDIA. He leads the research and development of GPUDirect Async—Kernel Initiate and Kernel Submit technologies, in addition to assisting the development of other core GPUDirect technologies. Pak received a Ph.D. in mathematical and computing sciences from the Tokyo Institute of Technology, Japan. He has spent nearly a decade in the high-performance computing (HPC) field related to GPU communication technologies.