Design of advanced reconfigurable computer systems with liquid cooling

Abstract

The paper covers problems of design of reconfigurable computer systems with a liquid cooling system. Design principles of liquid cooling systems of open and closed types are specified, and their comparative analysis is presented. It is shown that open type liquid cooling systems are the most acceptable for high-performance computer systems design. Architecture features of various immersion liquid cooling systems are analyzed; selection criteria of the main cooling system components are given. The paper presents the results of modelling, prototyping and experimental verification of the main technical solutions for our energy-efficient computational module with liquid cooling. The design of the computational module, designed on the base of the modern FPGAs of Xilinx UltraScale series, is presented. It is shown that the developed solutions have power reserve for design of advanced computer systems, based on the new UltraScale+ FPGA family. For the UltraScale+ FPGAs it is necessary to perform some modifications, concerning both the layout of the main computational circuit board and the design of the computer unit and its cooling system. The upgraded design of our advanced computer unit with liquid cooling is presented.