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32 results about "Virtual destination" patented technology

Arrangement for implementing kernel bypass for access by user mode consumer processes to a channel adapter based on virtual address mapping

A consumer resource provider is configured for generating a work request to a prescribed virtual destination address on behalf of a user-mode consumer process requiring a memory access. An operating system resource, configured for establishing communications between the consumer resource provider and a host channel adapter configured for servicing the work notifications, assigns virtual address space for use by the consumer resource provider, and respective unique mapping values specified as user mode access for use by the consumer resource provider in executing the memory accesses on behalf of the respective user-mode consumer processes. An address translator includes a translation map for uniquely mapping the virtual address space used by the consumer resource provider to a prescribed physical address space accessible by the host channel adapter. The address translator, in response to receiving the work notification at a virtual address from the consumer resource provider on behalf of an identified user-mode consumer process, maps the work notification to a corresponding prescribed physical address based on the corresponding mapping value assigned for the identified user-mode consumer process, enabling the host channel adapter to detect the work notification at the mapped physical address.
Owner:ADVANCED MICRO DEVICES INC

Message processing method, line card and switching equipment

The embodiment of the invention provides a message processing method, a line card and switching equipment. The method is applied to a stacking system including at least two pieces of switching equipment. And the line card having a stacking port at the main equipment of the system executes the following steps: receiving a message sent from a line card having a stacking port at the equipment in the stacking system; according to a virtual destination address carried in the received message and a corresponding relation between a virtual destination address stored locally and the line card of the main equipment, determining a line card corresponding to the virtual destination address carried by the message; and sending the message to the determined line card, indicating the determined line card to carry out processing on the message and determining whether to send the message to a main processing unit of the main equipment for processing according to the processing result. According to the invention, parts of messages that are intended to be sent a CPU of a line card having a stacking port at main equipment in a stacking system for processing can be distributed to CPUs of other line cards of the main equipment for processing, thereby reducing CPU loads of the stacked line cards and improving the message processing efficiency.
Owner:RUIJIE NETWORKS CO LTD

Satellite communication network key link sequence detection method based on time delay performance

ActiveCN110138437AEliminate the disadvantage of not being able to model cross-snapshot transactionsNarrow down the search spaceRadio transmissionData switching networksVirtual destinationTime delays
The invention belongs to the field of spatial information networks, and discloses a satellite communication network key link sequence detection method based on time delay performance. The method comprises the steps of obtaining a target satellite network topology and the service information; constructing a time expansion graph modeling target satellite network; calculating a minimum transmission arc cut set from a virtual source vertex to a virtual destination vertex in the time expansion graph; calculating a conflict path set of each transmission arc in the minimum transmission arc cutting set; according to the conflict path set, calculating an index time delay contribution value representing the transmission arc key degree; and calculating a key link sequence according to the time delaycontribution value of the transmission arc. Based on the characteristics that the minimum transmission arc cut set can represent paths between all source vertices and target vertices and contains theminimum number of transmission arcs, the key link sequence is detected in the minimum transmission arc cut set, the search space can be reduced, and the calculation time is effectively shortened.
Owner:XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY +1

Method for allocating resources of relay network and base station

ActiveCN101610580AGuaranteed minimum rate limitWireless communicationSystem capacityVirtual destination
The invention provides a method for allocating resources of a relay network and a base station. The method for allocating resources of the relay network comprises the following steps: setting virtual users which comprise virtual users served by the base station and virtual users served by a relay station; constructing a graph theory model which comprises subcarriers positioned in a first column, virtual users positioned in a second column, actual users positioned in a third column and virtual destination nodes positioned in a fourth column, wherein the set virtual users served by the base station and virtual users served by the relay station respectively correspond to the actual users; according to a constraint condition of ensuring the system capacity to be maximized in the minimum rate limitation of users, setting the capacities and cost of arcs which comprise the capacities and cost of the arcs from the subcarriers to the virtual users, arcs from virtual users to the actual users and arcs from the actual users to the virtual destination nodes; and allocating the resources for the relay network by utilizing the graph theory model and the set capacities and cost of the arcs. The technical scheme performs the optimal allocation on the resources of the relay network by constructing the graph theory model.
Owner:HUAWEI TECH CO LTD +1

Command uninstall method, device and physical machine

The invention discloses a command uninstall method, a device and a physical machine and relates to the communication technical field, aiming at effectively reducing the waste of hardware resource of the physical machine when operation instructions (such as copy or clear instructions) are processed. The method of the invention comprises following steps: a virtual machine intercepts an operation instruction issued by an application program, wherein the operation instruction is used for instructing execution of designated operations on data to be operated; the virtual machine generates an uninstall command according to the operation instruction, and sends the uninstall command to a host, wherein the uninstall command comprises a copy uninstall command or a clear uninstall command; the host translates a virtual source address in the uninstall command into a physical source address of the data to be operated, wherein the virtual source address is used for indicating the location of the data to be operated in a virtual disk of the virtual machine; the host performs designated operations on the data to be operated according to a virtual destination address in the uninstall command and the physical source address of the data to be operated. The method, the device and the physical machine of the invention are suitable for command uninstall processes.
Owner:HUAWEI TECH CO LTD

Method for allocating resources of relay network and base station

ActiveCN101610580BGuaranteed minimum rate limitWireless communicationVirtual destinationSystem capacity
The invention provides a method for allocating resources of a relay network and a base station. The method for allocating resources of the relay network comprises the following steps: setting virtual users which comprise virtual users served by the base station and virtual users served by a relay station; constructing a graph theory model which comprises subcarriers positioned in a first column, virtual users positioned in a second column, actual users positioned in a third column and virtual destination nodes positioned in a fourth column, wherein the set virtual users served by the base station and virtual users served by the relay station respectively correspond to the actual users; according to a constraint condition of ensuring the system capacity to be maximized in the minimum rate limitation of users, setting the capacities and cost of arcs which comprise the capacities and cost of the arcs from the subcarriers to the virtual users, arcs from virtual users to the actual users and arcs from the actual users to the virtual destination nodes; and allocating the resources for the relay network by utilizing the graph theory model and the set capacities and cost of the arcs. The technical scheme performs the optimal allocation on the resources of the relay network by constructing the graph theory model.
Owner:HUAWEI TECH CO LTD +1

Sequence detection method of critical link in satellite communication network based on delay performance

ActiveCN110138437BEliminate the disadvantage of not being able to model cross-snapshot transactionsNarrow down the search spaceRadio transmissionData switching networksTelecommunicationsVirtual destination
The invention belongs to the field of space information network, and discloses a time-delay performance-based key link sequence detection method of a satellite communication network; including: obtaining target satellite network topology and service information; constructing a time-expanded graph to model the target satellite network; Calculate the minimum transmission arc cut set from the virtual source vertex to the virtual destination vertex in the extended graph; calculate the conflict path set of each transmission arc in the minimum transmission arc cut set; calculate the index delay contribution value representing the criticality of the transmission arc according to the conflict path set ; Calculate the key link sequence according to the delay contribution value of the transmission arc. Based on the fact that the minimum transmission arc-cut set can represent the paths from all source vertices to the destination vertices and contains the least number of transmission arcs, the present invention can narrow the search space and effectively reduce the computation time by detecting key link sequences in the minimum transmission arc-cut set. time.
Owner:XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY +1

A command unloading method, device and physical machine

The invention discloses a command uninstall method, a device and a physical machine and relates to the communication technical field, aiming at effectively reducing the waste of hardware resource of the physical machine when operation instructions (such as copy or clear instructions) are processed. The method of the invention comprises following steps: a virtual machine intercepts an operation instruction issued by an application program, wherein the operation instruction is used for instructing execution of designated operations on data to be operated; the virtual machine generates an uninstall command according to the operation instruction, and sends the uninstall command to a host, wherein the uninstall command comprises a copy uninstall command or a clear uninstall command; the host translates a virtual source address in the uninstall command into a physical source address of the data to be operated, wherein the virtual source address is used for indicating the location of the data to be operated in a virtual disk of the virtual machine; the host performs designated operations on the data to be operated according to a virtual destination address in the uninstall command and the physical source address of the data to be operated. The method, the device and the physical machine of the invention are suitable for command uninstall processes.
Owner:HUAWEI TECH CO LTD

A message processing method, line card and switching device

The embodiment of the invention provides a message processing method, a line card and switching equipment. The method is applied to a stacking system including at least two pieces of switching equipment. And the line card having a stacking port at the main equipment of the system executes the following steps: receiving a message sent from a line card having a stacking port at the equipment in the stacking system; according to a virtual destination address carried in the received message and a corresponding relation between a virtual destination address stored locally and the line card of the main equipment, determining a line card corresponding to the virtual destination address carried by the message; and sending the message to the determined line card, indicating the determined line card to carry out processing on the message and determining whether to send the message to a main processing unit of the main equipment for processing according to the processing result. According to the invention, parts of messages that are intended to be sent a CPU of a line card having a stacking port at main equipment in a stacking system for processing can be distributed to CPUs of other line cards of the main equipment for processing, thereby reducing CPU loads of the stacked line cards and improving the message processing efficiency.
Owner:RUIJIE NETWORKS CO LTD
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