73results about "Software simulation/interpretation/emulation" patented technology

A recovery virtual machine acquires execution frequency information from a file, and converts a procedure, of which execution frequency is high in the execution frequency information acquired, to native code, and the time for starting the conversion is thereby reduced. Furthermore, by performing conversion at a timing at which a target procedure is invoked, load occurring due to the conversion is distributed, to prevent occurrence of failure in execution of an application caused by the load occurring due to the conversion.

A server management apparatus for lowering migration costs during scale-in/scale-out and workload consolidation of a cluster system(s) to thereby reduce power consumption is disclosed. The apparatus manages a physical server group which renders operative a virtual server group thereon and, when putting into practice a cluster system including a plurality of virtual servers placed in the physical server group, manages the layout state of virtual servers pursuant to the load state of the virtual server group. When executing scale-in, a virtual server operating on a physical server with the minimum number of operative virtual servers is specified as a shutdown target. When executing scale-out, a workload variation is predicted to control a scale-out destination of cluster system so that load variation-resembled cluster systems gather on the same physical server. The scale-in execution timing is delayed if the predicted load variation tends to rise and accelerated if it falls.

The invention provides tools and techniques for migration of user profiles in place on a computer. In one method, a first step provides a migration content storage partition to hold migration content such as user settings. This partition is provided by using a partition manipulation tool to obtain sufficient space on the computer. A second step saves migration content into the provided partition. A third step deploys an image into another partition on the computer, overwriting that partition. A fourth step then uses the migration tool to restore migration content from the migration content storage partition into the newly imaged partition, thereby customizing the new image with at least some of the former image's user settings. The migration content storage partition may then be deleted, or it may be retained and made available to the user as additional storage.

The system and method for structuring self-provisioning workloads deployed in virtualized data centers described herein may provide a scalable architecture that can inject intelligence and embed policies into managed workloads to provision and tune resources allocated to the managed workloads, thereby enhancing workload portability across various cloud and virtualized data centers. In particular, the self-provisioning workloads may have a packaged software stack that includes resource utilization instrumentation to collect utilization metrics from physical resources that a virtualization host allocates to the workload, a resource management policy engine to communicate with the virtualization host to effect tuning the physical resources allocated to the workload, and a mapping that the resource management policy engine references to request tuning the physical resources allocated to the workload from a management domain associated with the virtualization host.

In a computer system supporting execution of virtualization software and at least one instance of virtual system hardware, an interface is provided into the virtualization software to allow a program to directly define the access characteristics of its program data stored in physical memory. The technique includes providing data identifying memory pages and their access characteristics to the virtualization software which then derives the memory access characteristics from the specified data. Optionally, the program may also specify a pre-defined function to be performed upon the occurrence of a fault associated with access to an identified memory page. In this manner, programs operating both internal and external to the virtualization software can protect his memory pages, without intermediation by the operating system software.

Hypervisor managed memory paging is provided in a data processing system having multiple logical partitions. The data processing system includes a shared memory pool defined within physical memory. The shared memory pool includes a volume of physical memory with dynamically adjustable sub-volumes or sets of physical pages associated with the multiple logical partitions. Each sub-volume or set is associated with a particular logical partition and includes mapped logical memory pages for that logical partition. A hypervisor memory manager interfaces the multiple logical partitions and the shared memory pool, and manages access to logical memory pages within the shared memory pool. The hypervisor memory manager further manages page-out and page-in of logical memory pages from the shared memory pool to one or more external paging devices. This page-out and page-in managing by the hypervisor memory manager is transparent to the multiple logical partitions.

The invention provides an OpenStack based software defined network simulation system. The system comprises a virtual machine creating module, a simulation network setting module and a test module, wherein the virtual machine creating module creates multiple virtual machines according to requirements, the simulation network setting module arranges at least one software defined network controller and at least one software defined network switch in the created virtual machines according to requirements so as to establish a corresponding network topology network, and the test module tests whether the arranged software defined network controller and software defined network switch satisfy requirements according to the established network topology structure. The system uses the test module to test whether the arranged software defined network controller and software defined network switch satisfy requirements, so that the needed controller and switch can be developed according to requirements, the setting flexibility of the software defined network is improved, and the design cost is reduced. The invention also provides a software defined network simulation method.

System and method for analyzing substrate noise is disclosed, which is capable of accepting inputs of increasing complexity and granularity. During the early phases, the tool can accept coarse circuit descriptions, such as gate level netlists. The tool is capable of generating rudimentary substrate models based on estimated die size, allowing the designer to have an early indication of potential substrate noise issues. During the middle phases, the tool can accept more accurate circuit descriptions, such as a SPICE netlist. A more detailed substrate model can be generated, which considers layout information, thereby allowing the designer to make layout and circuit modifications before the circuit is completed. Lastly, during final verification, the tool can accept an even more accurate netlist, such as a SPICE netlist that includes parasitic capacitance. The tool can also accept a more detailed substrate model and provides the substrate noise analysis necessary to finalize the design.

Provided in embodiments of the present invention are a method for generating configuration information and a network control unit. The method comprises: the network control unit receiving a virtual machine association message comprising an identifier of a first virtual machine of which the state is changed and an identifier of a first virtual built-in network element which detects the state change of the first virtual machine; the network control unit determining first information according to the identifier of the first virtual machine, and the first information comprising at least one of the following information: a first forwarding entry, a first virtual machine position information mapping entry and a first network policy. In the embodiments of the present invention, the network control unit determines the first information according to the identifier, included in the virtual machine association message, of the first virtual machine of which the state is changed, so that manual determination is not needed, and thus the network configuration efficiency is improved and the performance of a network is enhanced.

Initially, non-uniformity of statistical skews between a plurality of clock output terminal pairs is calculated. Next, a partial circuit driven by a clock output terminal pair having each skew distribution is extracted from an integrated circuit. Next, a second statistical timing characteristic which is a maximum value in the partial circuit is obtained from a first statistical timing characteristic of signal paths included in the extracted partial circuit. Next, timing verification for the integrated circuit is performed using the second statistical timing characteristics corresponding to the respective statistical clock skews.

The invention provides a local dynamic migration method and control system based on a Docker container technology, and belongs to the technical field of cloud computing. The problem of resource wastein an existing container migration technology is solved. The method determines the appearing of an overload server and triggers container migration according to the node resource usage rate and the predicted resource usage rate in the last n sampling periods; for the selection of a to-be-migrated container in the overload server, a container with large total usage rate and smaller internal storageis selected firstly to achieve the effect of balancing load while reducing migration overhead. For the selection of a target server, firstly enough available resources in the target server are ensured. For the case where a new container is generated in the migration process and the target server is overloaded caused by paralleling, it means that there is no server which can accommodate the container in all servers in the cluster, so that there is no need to migrate the container and replace the to-be-migrated container. The local dynamic migration method and control system improve resource utilization and reduce task execution time.

The invention discloses a method, a device and a system for acquiring virtual machine terminal data. The method for acquiring the virtual machine terminal data comprises that: a cloud client terminal receives a virtual machine list sent by a cloud server; the cloud client terminal issues a terminal data interception command to any one or multiple virtual machines in the virtual machine list; and the cloud client terminal receives the terminal data returned by the cloud server, wherein the cloud server uses the terminal data interception command to acquire the terminal data on the virtual machines. With the method, an effect of a desktop video recording function on the virtual machines of the client terminal can be realized without installation of software.

One embodiment provides a system for determining a process model for a photolithography process. The photolithography process can use multiple exposure-and-development steps to create features on a wafer. When the photolithography process exposes the wafer to a layout, the wafer can include topography variations which were caused by previous exposure-and-development steps. The process model can be used to predict patterns that are created on the wafer when the wafer is exposed to a second layout, wherein the wafer includes topography variations that were caused by resist features that were created when the wafer was exposed to a first layout. The process model can include a first term and a second term, wherein the first term is convolved with a sum of the first layout and the second layout, and wherein the second term is convolved with the second layout.

By providing plural layers in which circuit components of an integrated circuit using plural voltages are arranged in accordance with used voltages, separately arranging the circuit component to which a high voltage is applied in a specific layer among the plural layers, recognizing the used voltage for each layer, and performing a layout verification by applying a condition in accordance with the used voltage, it is possible to recognize the circuit component, to which a high voltage is applied, on the layout, and to perform the layout verification using a layout rule in accordance with the used voltage using only the layers used in an actual process without newly generating a dummy layer etc.

Managing a virtual computer resource on at least one virtual machine. The managing of the virtual computer resource on the at least one virtual machine is by controlling execution of the virtual computer resource on the at least one virtual machine by a virtual machine instance, such as a firmware facility, of a trusted part of a computer system. The virtual machine instance is unique in the computer system.

A design structure. The design structure includes: a first set of FETs having a designed first V_t and a second set of FETs having a designed second V_t, the first V_t different from the second V_t; a first monitor circuit containing at least one FET of the first set of FETs and a second monitor circuit containing at least one FET of the second set of FETs; a compare circuit configured to generate a compare signal based on a performance measurement of the first monitor circuit and of the second monitor circuit; a control unit responsive to the compare signal and configured to generate a control signal regulator based on the compare signal; and an adjustable voltage regulator responsive to the control signal and configured to voltage bias wells of FETs of the second set of FETs, the value of the voltage bias applied based on the control signal.

A layout verification device according to the present invention includes a layout verification unit that outputs a first error graphic corresponding to an area where there is an inconsistency with a design rule in a first layout pattern, and includes a target error graphic setting unit that sets a processing target area including the first error graphic, an error graphic search unit that searches a second error graphic included in a processing target area of a second layout pattern where verification by the layout verification unit has already been performed, and an error graphic equivalence judgment unit that judges that the first error graphic and the second error graphic are non-equivalent when a second target vertex coordinate of the second error graphic does not match any one of a plurality of peripheral vertex coordinates set in grid intersections adjacent to the first target vertex coordinate of the first error graphic.

Gating clocks has been a widely adopted technique for reducing dynamic power. The clock gating strategy employed has a huge bearing on the clock tree synthesis quality along with the impact to leakage and dynamic power. This invention is a technique for clock gate optimization to aid the clock tree synthesis. The technique enables cloning and redistribution of the fanout among the existing equivalent clock gates. The technique is placement aware and hence reduces overall clock wire length and area. The technique involves employing the k-means clustering algorithm to geographically partition the design's registers. This invention improves the clock tree synthesis quality on a complex design.

The invention provides a container creation method and device, electronic equipment and a storage medium, and belongs to the technical field of containers. The method comprises the steps of obtaininga to-be-updated new agent file in response to a container creation instruction; and mounting the new agent file to a first virtual machine directory in a virtual machine, so as to enable the virtual machine to obtain the new agent file according to the first virtual machine directory and operate a container based on the new agent file. By the adoption of the technical scheme, the problem that whena new container is created based on an existing container mirror image file updating mode, the container in the running state cannot run normally can be solved.

The invention relates to a prediction-based service function chain fault detection method, and belongs to the technical field of communication. The method comprises the following steps: firstly, according to performance correlation between virtual network functions of a service function chain in a virtual network environment, collecting data in a manner of monitoring performance data of each virtual network function on the whole service function chain, and dividing the working state of the service function chain; secondly, considering high-dimensional complexity and time-related characteristics of network monitoring data, combining with initiative requirements of fault detection, adopting a gating circulation unit network to detect faults, and predicting health conditions of the network byanalyzing historical performance data information of a service function chain; and finally, introducing transfer learning to accelerate the convergence rate of the model by utilizing the similarity of virtual network function nodes among different service function chains. According to the invention, the fault can be effectively detected while the fault detection time requirement is met.

The invention discloses a command learning method based on an internet of things. The method is characterized by comprising the following steps of 1, the parameter definition of a learning command; 2, the parameter entering of the learning command; 3, the parameter passing of the learning command; 4, the parameter storage of the learning command; 5, the update judgment of the learning command; 6, the parameter analysis of the learning command; 7, the transmission of the learning command; 8, the storage and transmission of the learning command; 9, the binding of the learning command. According to the command learning method based on the internet of things, a command learning system can be standardized, a user can conveniently expand command functions, and the development cost can be reduced.