Abstract:
The data center processing capabilities have been traditionally implemented by processors of three kinds — central processing units (CPU), graphics processing units (GPU), and network processing units (NPU). Recently, data processing units (DPU), sometimes called also infrastructure processors, have joined this triad. The most frequently advertised purpose of the DPU is to free CPU and GPU from communication burdens and a number of routine tasks for storing, moving, and processing certain data types within a data center that assumes interaction of DPU with CPU and GPU as well as partial or complete replacement of the NPU. The article attempts to clarify the essence of DPU, specifies their place and role in the data center infrastructure, examines the connection of DPU with GPU and NPU, finds out the relation to network functions virtualization, denotes difficulties of using the DPU, and gives a preliminary assessment of the prospects for their further development and application.
Keywords:central processing unit, data processing unit, graphics processing unit, network functions virtualization, network processing unit.
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