Abstract: A method for migrating a virtual machine executing on a host. The method involves monitoring, by a monitoring agent connected to a device driver, hosts in a network, wherein the device driver is connected to a network interface card, determining a virtual machine to be migrated based on a virtual machine policy, sending, by the host, a request to migrate to at least one of a plurality of target hosts in the network, receiving an acceptance to the request to migrate from at least one of the plurality of target hosts, determining, by the monitoring agent, a chosen target host to receive the virtual machine based on a migration policy, wherein the chosen target host is one of the at least one target hosts that sent the acceptance, sending a confirmation and historical information to the chosen target host, and migrating the virtual machine to the chosen target host.

Abstract: A containment mechanism provides for the grouping and isolation of multiple processes running on a single computer using a single instance of the operating system. A system environment is divided into one or more side-by-side and/or nested spaces enabling the partitioning and controlled sharing of resources by creating different views of hierarchical name spaces via virtual hierarchies. A set of declarative rules specifying access capabilities may specify a set of filter drivers to be used to limit access to nodes in the hierarchical name space. The rules may be applied in sequence to construct a new name space from an existing one, or to add to an existing hierarchy. Filter drivers are used to limit access to nodes in the new name space or new portion of the name space. Access to nodes can be limited (read-only access instead of read/write) or nodes can be hidden altogether. Rules may be specified in a declarative language such as XML.

Abstract: Described are a system and method of embedding a virtual storage area network on an electronic device. A virtual machine runs on the electronic device. The virtual machine provides a virtual storage target for responding to block storage requests from storage initiators. A virtual fabric is coupled between the virtual machine and an external storage area network (SAN). The virtual fabric routes a storage request from a storage initiator to the virtual storage target.

Abstract: A server farm includes a plurality of server devices. The plurality of server devices includes a plurality of topology service endpoints and a plurality of target service endpoints. A client computing system sends a topology service request to one of the topology service endpoints. In response, the topology service endpoint sends target service endpoint Uniform Resource Identifiers (URIs) to the client computing system. When a client application at the client computing system needs to send a target service request to one of the target service endpoints, the client computing system applies a load balancing algorithm to select one of the target service endpoint URIs. The client computing system then sends a target service request to the target service endpoint identified by the selected one of the target service endpoint URIs. In this way, the client computing system may use a load balancing algorithm appropriate for the client application.

Abstract: Methods, apparatus, and products are disclosed for scheduling applications for execution on a plurality of compute nodes of a parallel computer to manage temperature of the plurality of compute nodes during execution that include: identifying one or more applications for execution on the plurality of compute nodes; creating a plurality of physically discontiguous node partitions in dependence upon temperature characteristics for the compute nodes and a physical topology for the compute nodes, each discontiguous node partition specifying a collection of physically adjacent compute nodes; and assigning, for each application, that application to one or more of the discontiguous node partitions for execution on the compute nodes specified by the assigned discontiguous node partitions.

Abstract: To determine, when a virtual machine is executed by an arbitrary machine, whether the virtual machine can access computer resources required for the virtual machine, provided is a method of checking a possibility of executing a virtual machine including a first physical computer for executing a first virtual machine and a second physical computer capable of executing a virtual machine. The method includes the steps of: acquiring information on first logical resources; acquiring setting information set to a adaptor of the first physical computer so that the first virtual machine accesses the first logical resources; listing second logical resources accessible when the first virtual machine is executed by the second physical computer by setting the setting information to a adaptor of the second physical computer; and determining whether the first virtual machine can be executed by the second physical computer by comparing the first and second logical resources.

Abstract: A virtual core management system including a first physical core and a second physical core, and a virtual core including a collection of logical states associated with execution of a program. The virtual core management system further includes a first temperature sensor configured to sense a temperature of the first physical core and a second temperature sensor configured to sense a temperature of the second physical core, and a virtual core management component configured to map the virtual core to one of the first physical core and the second physical core based on at least one of the temperature of the first physical core and the temperature of the second physical core.

Abstract: Techniques for eradicating operating system jitter-induced slowdown are provided. The techniques include allocating one or more computing resources to one or more logical partitions of one or more parallel programs in proportion of one or more cycles consumed by one or more sources of operating system jitter in each compute phase in each of the one or more logical partitions.

Abstract: In an embodiment of the present invention there is provided a method of facilitating pipelines throughput in a pipeline processor system including at least one producer processor/consumer processor pair. The method includes the step of controlling (22) the producer processor/consumer processor pair to allow them to run out-of-sync without violating dependency (21,23,26).

Abstract: A system and method for performing backfilling on an incoming flow of incoming parallel programs provided by a population of clients to a facility, the system comprising a computer-controlled prediction functionality operative to generate a current run-time prediction for at least some of the incoming parallel programs, a backfiller performing backfilling on the incoming flow of incoming parallel programs based at least partly on at least some of the run-time predictions; and a prediction updater operative, if the current run-time of an incoming parallel program currently in process exceeds the current run-time prediction, to generate an updated run-time prediction to exceed the current run-time, to re-define the current run time to equal the updated run-time prediction, thereby to allow the backfiller to continue performing backfilling based on the updated run-time prediction.

Abstract: A method and system for managing transactions is provided. A transaction is initiated on a first data by a first entity with the first data being comprised in a basis memory. A change in the first data is moved as a second data to a transaction memory. The second data is read from the transaction memory if a request for reading the first data is received from the first entity. The first data is read from the basis memory if the request for reading the first data is received from a second entity. The write access of the second entity to the first data is locked.

Abstract: The present invention allows CPU utilization for a virtual machine (VM) to be captured from a perspective of a host. Specifically, under the present invention, a work request having a set (e.g., one or more) of jobs is received by a host and allocated to a virtual machine on a node. The work request is typically accompanied by an account identifier such as a multi-value billing code. Once the work request is allocated to a particular VM on the node, a “startacct” script is issued, and a first account record is created. Thereafter, the work request is processed and the CPU utilization needed to complete the set of jobs is monitored. Once the set of jobs is completed, an “endacct” script is issued and a second account record is created. Among other things, the second account record includes the monitored CPU utilization and the account identifier.

Abstract: In certain embodiments, a method for virtual infrastructure management includes discovering a plurality of heterogeneous virtual environments, each virtual environment comprising one or more components and being associated with one or more vendor-specific management operations. The method further comprises generating, for each of the plurality of heterogeneous virtual environments, one or more virtual environment objects that model that virtual environment and are operable to abstract the one or more vendor-specific management operations of that virtual environment to a normalized set of management operations. The method further comprises facilitating management of the plurality of heterogeneous virtual environments using the virtual environment objects that model the plurality of heterogeneous virtual environments.

Abstract: A method, system and computer program product enables the granular collection and utilization of hardware statistical samples for the efficient scheduling and allocation of data processing resources. In particular, a Partition Statistics Capture and Analysis (PSCA) utility utilizes special purpose registers to collect statistical samples, such as: (1) instructions completed; (2) Level2 (L2) cache misses; (3) cycles per instruction (CPI); and/or (4) other statistics selected based on the programming of the PSCA utility. Further, these statistical samples are utilized for the several purposes, including: (1) determining how long (time) the footprint of a partition takes to become established during the “cold start” period, i.e., during system instantiation; (2) detecting movement of the CPI curve in order to determine the (shifted) location of the onset of steady state (i.e., the knee) on the CPI curve; and (3) utilizing the statistical samples to guide dispatch decisions and make tuning recommendations.

Abstract: A method for managing software modules of at least two operating systems sharing physical resources of a computing environment, but running in different partitions separated by a virtualization boundary comprises accumulating module information in a virtualization subsystem that directs the creation and management of the partitions. The accumulated module information is used across the virtualization boundary to manage the use of the software modules. Also, a method for managing software modules comprises making at least two operating systems aware that they are being hosted in a virtualized computing environment.

Abstract: A method of virtual processing includes running a virtual processor (1), which when the virtual processor (1) encounters a faulting instruction unmaps the virtual processor (1) from the physical processor (A), and generates a list of other of the physical processors that could execute the instruction. Then determines if one of the other of the physical processors in the list is currently idle, and when one of the other of the physical processors in the list is determined to be currently idle, maps the virtual processor (1) to a physical processor (B) which is the one of the other of the physical processors in the list that was determined to be currently idle.

Abstract: A method for playing dynamic content includes: allocating and occupying playing resources for playing of dynamic contents by dynamic content priority; preempting playing resources occupied by dynamic contents of lower priorities to play back dynamic contents of higher priorities in precedence. The dynamic contents of which the playing resources are preempted can be handled as appropriate in accordance with the preset processing policy. A playing apparatus for playing dynamic content includes a content receiving module, a storage unit, a play scheduling module, a content playing module, and a user configuration module. The present invention supports automatic playing of dynamic contents by priority and in accordance with the policy preset by the user, and can be implemented simply and conveniently.

Abstract: To provide a resource management system capable of stably providing most recently updated resource information at a high speed. A resource information update unit collects resource information from a plurality of agents by means of agent connection management unit according to an update schedule of resource information stored in a schedule storage unit, and stores the same in a resource information storage unit. A retrieval processing unit accesses the resource information storage unit to acquire retrieval results of resource information. A static schedule generation unit selects update interval for each of resource information, generates a static schedule, and store the same in the schedule storage unit.

Abstract: A system has plural physical machines that contain virtual machines. A load balancer receives a request from a client. In response to the request, it is determined whether at least one additional virtual machine should be started up. In response to determining that at least one additional virtual machine should be started up, the load balancer sends at least one command to start up the at least one additional virtual machine in at least one of the physical machines.

Abstract: Machine-readable media, methods, and apparatus are described to change a first scheduler in the virtual machine monitor. In some embodiments, a second scheduler is loaded in a virtual machine monitor when the virtual machine monitor is running; and then is activated to handle a scheduling request for a scheduling process in place of the first scheduler, when the virtual machine monitor is running.