Abstract:
A method, apparatus and system may utilize virtual machines in a grid computing environment. More specifically, hosts in a grid computing network may be configured to run various virtual machines. Additionally, these hosts may be configured to designate one or more of the virtual machines to processing grid applications. A resource manager may access predefined policies to monitor the grid virtual machine and manage resource allocation within the grid network, in conjunction with a virtual machine manager or a virtual machine monitor (“VMM”).
Abstract:
A method, apparatus and system for transparent and dynamic resource allocation in a virtualized environment is disclosed. An embodiment of the present invention enables a resource allocation module to dynamically evaluate resource requests from various clients and allocate the resources on a virtual host as available. The resource allocation module may additionally monitor resource usage and dynamically reallocate resources as appropriate.
Abstract:
A method, apparatus and system may optimize context switching between virtual machines (“VMs”). According to an embodiment of the present invention, a first processor core may execute a first VM while a second processor core may concurrently retrieve information pertaining to the state of a second VM into a processor cache. When the virtual machine manager (“VMM”) performs a context switch between the first and the second VMs, the second processor may immediately begin executing the second VM, while the first processor may save the state information for the first VM. In yet another embodiment, different threads on a processor may be utilized to execute different VMs on a host.
Abstract:
A server receives a request for a service. The server determines if a virtual machine already exists that offers the service. If so, the server returns an identifier of the virtual machine to the requesting client so that the client may access the service from the virtual machine. Otherwise, the server attempts to create an image of a virtual machine offering the service. If successful in creating the image, the image is installed as a new virtual machine in a host machine, and the server returns an identifier of the newly created virtual machine to the client.
Abstract:
A method, apparatus and system may optimize context switching between virtual machines (“VMs”). According to an embodiment of the present invention, separate caches may be utilized to store and retrieve state information for each respective VM on a host. When the virtual machine manager (“VMM”) performs a context switch between a first and a second VM, the VMM may instruct the processor to point from one cache (associated with the first VM) to another (associated with the second VM). Since the caches are dedicated to their respective VMs, the state information for each VM may be retained, thus eliminating the overhead of restoring information from memory and/or disk.
Abstract:
A system implements dishonest policies for managing unauthorized access requests. The system includes memory management hardware to store a set of dishonest policy bits, each dishonest policy bit that is configured to a predetermined value indicating disallowed access for one of a set of memory ranges. When a processor receives an access request for a location in a memory range to which access is not allowed as indicated by a set dishonest policy bit, the processor returns a false indication according to a dishonest policy that the requested access has been performed.
Abstract:
Systems and methods for transporting physical objects from real physical life into virtual worlds. Briefly stated, the method includes receiving characteristic and structure data from an object constructed in the real world. The characteristic and structure data is obtained from the object using a plurality of sensors placed in the vicinity of the object to sense the characteristics and structure of the object. The characteristic and structure data of the object is used to produce code necessary to create an equivalent representation of the object in a virtual world.
Abstract:
In some embodiments, a client computer includes a memory, a client presence program adapted to be located in the memory, and a processor. The processor is coupled to the memory and is adapted to execute the client presence program to receive provider presence information from an instant messaging (IM) server and to store the provider presence information in the memory. The provider presence information includes at least a provider status for at least one service provider.
Abstract:
A system and method is disclosed for providing a reward-based digital mobile coupon environment, where the digital coupons may be shared among peers. Consumers utilize mobile digital coupon carriers having digital representations of coupons. Sharing of coupons among peers may be rewarded with additional discounts or points. The digital coupon carriers communicate with electronic coupon terminals at retail locations for automatic coupon redemption. A coupon may correspond to a globally unique identifier in order to track usage, sharing and redemption. Coupon use and sharing may be dependent upon stored user profiles, merchant profiles and policies, or programs embedded in the coupon.
Abstract:
Routing a message (e.g., text message, voice message, etc.) based on the accessibility of an intended recipient's associated communication channels (e.g., email, fax, instant message, cell, landline, etc.) may involve discovering information relating to an accessibility state of one or more communication channels associated with the message recipient; maintaining a data repository comprising the discovered accessibility state information; and routing a message to the message recipient based on information in the data repository.