Abstract:
A computer subsystem and a computer system, where the computer subsystem includes L composite nodes (CNs), each CN includes M basic nodes, each basic node includes N central processing units (CPUs) and one node controller (NC). Any two CPUs in each basic node are interconnected. Each CPU in each basic node is connected to the NC in the basic node. The NC in each basic node has a routing function. Any two NCs in the M basic nodes are interconnected. A connection between the L CNs formed through connections between NCs enables communication between any two NCs to be no more than three hops. Hence, the computer subsystem and the computer system can reduce the kinds and the number of interconnection chips, and simplify an interconnection structure of a system, thereby improving reliability of the system.
Abstract:
The present invention provides a node routing method of a multi-processor system, a controller and a multi-processor system. The method includes learning a state of an available link between nodes in the multi-processor system, where the multi-processor system includes a first subnet and the first subnet includes at least two connected nodes, and when at least one link in the first subnet fails, reselecting an available link between all nodes in the first subnet, so that the nodes in the first subnet use the reselected available link to route a packet, where the reselected available link is a link on each node in the first subnet except a link whose dimension sequence number is the same as that of the failed link, a dimension sequence number is numbers of a link at two end nodes, and numbers of a link at two end nodes are the same.
Abstract:
The present invention provides a node routing method of a multi-processor system, a controller and a multi-processor system. The method includes learning a state of an available link between nodes in the multi-processor system, where the multi-processor system includes a first subnet and the first subnet includes at least two connected nodes, and when at least one link in the first subnet fails, reselecting an available link between all nodes in the first subnet, so that the nodes in the first subnet use the reselected available link to route a packet, where the reselected available link is a link on each node in the first subnet except a link whose dimension sequence number is the same as that of the failed link, a dimension sequence number is numbers of a link at two end nodes, and numbers of a link at two end nodes are the same.
Abstract:
A computer device and a method for reading or writing data by a computer device are provided. In the computer device, a central processing unit (CPU) is connected to a cloud controller using a double data rate (DDR) interface. Because the DDR interface has a high data transmission rate, interruption of CPU can be avoided. In addition, the CPU converts a read or write operation request into a control command and writes the control command into a transmission queue in the cloud controller. Because the cloud controller performs a read operation or a write operation on a network device according to operation information in the control command, after writing the control command into the transmission queue, the CPU does not need to wait for an operation performed by the cloud controller and can continue to perform other processes.
Abstract:
A network distance prediction method and apparatus, wherein the method includes communicating, with at least two reference nodes, to determine values of at least some elements in a local distance matrix; constructing, the local distance matrix based on the values of the at least some elements in the local distance matrix; performing, low-rank sparse factorization on the local distance matrix to obtain a low-rank matrix; obtaining, values of elements in a first element set of the low-rank matrix, to use the values as target values of network distances between the to-be-positioned node and the at least two reference nodes; communicating, with the reference nodes, to obtain coordinates of the reference nodes in a network coordinate system; and determining, coordinates of the to-be-positioned node.
Abstract:
The present invention provides a computer subsystem and a computer system. The computer subsystem includes L composite nodes, each composite node includes M basic nodes, each basic node includes N central processing units (CPUs) and one node controller. Any two CPUs in each basic node are interconnected. Each CPU in each basic node is connected to the node controller in the basic node. The node controller in each basic node has a routing function. Any two node controllers in the M basic nodes are interconnected. A connection between the L composite nodes formed through connections between node controllers enables communication between any two node controllers to be no more than three hops. The computer subsystem and the computer system according to embodiments of the present invention can reduce the kinds and the number of interconnection chips, and simplify an interconnection structure of a system, thereby improving reliability of the system.
Abstract:
A computer device and a method for reading or writing data by a computer device are provided. In the computer device, a central processing unit (CPU) is connected to a cloud controller using a double data rate (DDR) interface. Because the DDR interface has a high data transmission rate, interruption of CPU can be avoided. In addition, the CPU converts a read or write operation request into a control command and writes the control command into a transmission queue in the cloud controller. Because the cloud controller performs a read operation or a write operation on a network device according to operation information in the control command, after writing the control command into the transmission queue, the CPU does not need to wait for an operation performed by the cloud controller and can continue to perform other processes.
Abstract:
The present invention provides a computer subsystem and a computer system. The computer subsystem includes L composite nodes, each composite node includes M basic nodes, each basic node includes N central processing units (CPUs) and one node controller. Any two CPUs in each basic node are interconnected. Each CPU in each basic node is connected to the node controller in the basic node. The node controller in each basic node has a routing function. Any two node controllers in the M basic nodes are interconnected. A connection between the L composite nodes formed through connections between node controllers enables communication between any two node controllers to be no more than three hops. The computer subsystem and the computer system according to embodiments of the present invention can reduce the kinds and the number of interconnection chips, and simplify an interconnection structure of a system, thereby improving reliability of the system.
Abstract:
A memory access device allocate a memory resource to a node in a system to reduce maintenance overheads of the system and implement flexible scheduling of memory resources. The device includes a cloud control device on the side of a requesting node and a cloud control device on the side of a contributing node. The cloud control device on the side of the requesting node generates a request packet for accessing to-be-accessed data stored in the contributing node which provides memory resource, sends the request packet to the contributing node t. The cloud control device on the side of the contributing node receives the request packet, provides a request message to the contributing node, generates the response packet for the contributing node, and sends the response packet to the requesting node.
Abstract:
The present invention provides a computer subsystem and a computer system. The computer subsystem includes L composite nodes, each composite node includes M basic nodes, each basic node includes N central processing units CPUs and one node controller NC, where any two CPUs in each basic node are interconnected, each CPU in each basic node is connected to the NC in the basic node, the NC in each basic node has a routing function, any two NCs in the M basic nodes are interconnected, and a connection between the L composite nodes formed through a connection between NCs enable communication between any two NCs to require at most three hops. The computer subsystem and the computer system according to embodiments of the present invention can reduce the kinds and the number of interconnection chips, and simplify an interconnection structure of a system, thereby improving reliability of the system.