Design method of eight-path server back plate and double-buckle-plate interconnection system
Technical Field
The invention discloses a design method of an eight-path server backboard and double-buckle-board interconnection system, and relates to the technical field of server board design.
Background
The multiple processors and IO resources of the computer system may be physically divided, so that a multiprocessor computer system is divided into multiple independent multiprocessor systems, and these divided computer systems may also be coupled into a complete computer system. At present, there is an 8-way server system, which is characterized by comprising 2 independent computing nodes, wherein each computing node is completely the same, and each computing node is provided with 4 CPUs. At present, two interconnection modes are mainly adopted, one mode is interconnected by using a single backboard, and the scheme needs 4 CPUs to be totally close to one side of the backboard, so that the UPI wiring distance is ensured to meet the SPEC requirement. The design mode reduces the use amount of the memory, and the full-allocation memory mode cannot be used; and the other scheme of using a back plate and a front buckle plate is adopted, and the intel purley platform limits that the memory needs to be arranged on two sides of the CPU. The size of the board card is required to be made to be large by using the UPI buckle plate for interconnection, new problems are easily introduced, the design difficulty is increased in the aspect of structure, the reliability is poor, the buckle plate can block the air duct in the aspect of heat dissipation, and the heat dissipation requirement cannot be met. The invention provides a design method of an eight-path server back plate and double-buckle plate interconnection system, wherein the back plate is interconnected with two UPI buckle plates during use, convenient board wiring and 8S system interconnection are realized, 8S and 4S switching is facilitated, cost is saved, the size of the UPI buckle plate is extremely small, reliability is stable, a radiating air duct is not influenced, and PCB wiring outgoing is facilitated.
8s,8 sockets, 8 servers, 8 CPUs.
UPI, all named Intel Ultra Path Interconnect.
Non-uniform memory access (NUMA) is a computer memory design for multiple processors that allows multiple servers to behave as a single system while retaining the ease of programming and management of small systems.
Disclosure of Invention
Aiming at the requirements and the defects of the prior art development, the invention provides a design method of an eight-path server back plate and double-buckle-plate interconnection system, wherein the back plate is interconnected with two UPI buckle plates during use, the convenient interconnection of board card wiring and an 8S system is realized, the 8S and 4S switching is convenient, the cost is saved, the UPI buckle plate is extremely small in size and stable in reliability, a heat dissipation air duct is not influenced, and the PCB wiring is convenient to be led out.
A design method of an eight-path server back plate and double-buckle plate interconnection system is characterized in that NUMA-based multi-physical-layer partitions are used, a middle back plate and two UPI buckle plates are used for interconnecting two 4S computing boards to form an 8S system, wherein the middle back plate is positioned in front of the computing boards and is interconnected with the two computing boards, UPI signals, Misc signals, time sequence signals and management signals are interacted, and the middle back plate is connected with CPUs positioned in front of the two computing boards through connectors of the middle back plate respectively, so that interconnection between CPUs in front of the two computing boards is realized; the two UPI buckle plates are respectively positioned behind the two computing boards and interact with the computing boards to form UPI signals, Misc signals and time sequence signals, and the connectors of the UPI buckle plates are respectively connected with the CPUs positioned behind the two computing boards to realize interconnection between the CPUs behind the two computing boards.
In the method, the back plate contains ID information, and the computing board detects the ID information by using a logic editing device and then judges master nodes and slave nodes on the computing board.
In the method, the time sequence switching control is realized by judging required computing nodes by using a logic editing device in a computing board.
An eight-path server backboard and double-buckle interconnection system comprises two 4S system computing boards, a middle backboard and two UPI buckles, wherein the NUMA-based multi-physical-layer partition is adopted, the two 4S system computing boards are interconnected by the middle backboard and the two UPI buckles to form an 8S system, the middle backboard is positioned in front of the computing boards and is interconnected with the two computing boards, UPI signals, Misc signals, time sequence signals and management signals are interacted, and the CPU positioned in front of the two computing boards is respectively connected through a connector of the middle backboard, so that interconnection between the front CPUs of the two computing boards is realized; the two UPI buckle plates are respectively positioned behind the two computing boards and interact with the computing boards to form UPI signals, Misc signals and time sequence signals, and the connectors of the UPI buckle plates are respectively connected with the CPUs positioned behind the two computing boards to realize interconnection between the CPUs behind the two computing boards.
The back plate in the system contains ID information, and the computing board utilizes a logic editing device to detect the ID information and then judges master nodes and slave nodes on the computing board.
In the system, a calculation board judges required calculation nodes by using a logic editing device to realize time sequence switching control.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a design method of an eight-path server back plate and double-buckle plate interconnection system, which is based on NUMA multi-physical-layer partition, wherein a middle back plate and two UPI buckle plates are used for interconnecting two 4S systems of computing plates to form an 8S system, and the front end and the rear end of the computing plates can be interconnected in 3 directions through 3 plate outgoing lines, so that the interconnection of UPI, Misc signals, time sequence signals, management interconnection signals and the like of the 8S system is realized, convenient plate routing is realized, 8S and 4S switching is facilitated, the cost is saved, the size of the UPI buckle plate is extremely small, the reliability is stable, a radiating air duct is not influenced, and the PCB routing outgoing lines are facilitated.
Drawings
FIG. 1 is a 8s system interconnection topology of the present invention;
FIG. 2 is a backplane interconnect topology of the present invention;
FIG. 3 is a topological diagram of the UPI buckle plate interconnection of the present invention.
Detailed Description
The invention provides a design method of an eight-path server back plate and double-buckle plate interconnection system, which is characterized in that based on NUMA multi-physical-layer partition, a middle back plate and two UPI buckle plates are utilized to interconnect two 4S system computing plates to form an 8S system, wherein the middle back plate is positioned in front of the computing plates and is interconnected with the two computing plates, UPI signals, Misc signals, time sequence signals and management signals are interacted, and the middle back plate is respectively connected with CPUs positioned in front of the two computing plates through connectors of the middle back plate, so that interconnection between front CPUs of the two computing plates is realized; the two UPI buckle plates are respectively positioned behind the two computing boards and interact with the computing boards to form UPI signals, Misc signals and time sequence signals, and the connectors of the UPI buckle plates are respectively connected with the CPUs positioned behind the two computing boards to realize interconnection between the CPUs behind the two computing boards.
And simultaneously provides a corresponding eight-path server backboard and double-buckle-board interconnection system.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to specific embodiments below.
By using the method of the invention and the NUMA-based multi-physical layer partition, the middle backboard is positioned in front of the computing boards and is interconnected with the two computing boards, the UPI signal, the Misc signal, the time sequence signal and the management signal are interacted, and are respectively connected with the CPUs positioned in front of the two computing boards through the connectors of the middle backboard, referring to figure 1, the middle backboard in figure 1 is connected with the CPU1 and the CPU0 of the first computing Board CPU Board 0, and is connected with the CPU5 and the CPU4 of the second computing Board CPU Board 1,
wherein the middle backboard contains ID information, the CPLD in the computing board can be used for detecting the ID information and then judging the master node and the slave node on the computing board,
the CPLD can judge the required computing nodes when the 8s system is applied, and the time sequence switching control of the computing nodes is realized;
and each UPI buckle plate comprises two 6X10 high-speed connectors, the two UPI buckle plates respectively realize the interconnection of CPUs 3-7 UPI and the interconnection of CPUs 2-6 UPI in the two computing boards, and the interaction of UPI signals, Misc signals and time sequence signals of the computing boards is realized.
When the 8S system selects the dual 4S mode, only the midplane can be used for signal interaction.
By using the method, the outgoing lines in three directions in the board card are realized by adding 2 UPI pinch plates on the middle back plate, the size of the UPI pinch plates is extremely small, the reliability is stable, the radiating air duct is not influenced, and the 8S and 4S switching of the system is facilitated. The PCB is convenient to line and lead out, the cost is saved, and the interconnection of the 8S system is very convenient.