摘要:
A system, method and computer program product for enhancing a real-time operating system (RTOS) with functionality normally associated with a general purpose operating system (GPOS). A hypervisor that is adapted to perform a real-time scheduling function supports concurrent execution of an RTOS and a GPOS on a system of shared hardware resources. The RTOS or its applications can utilize services provided by the GPOS. Such services may include one or more of file system organization, network communication, network management, database management, security, user-interface support and others. To enhance operational robustness and security, the hypervisor can be placed in read-only storage while maintaining the ability to update scheduling mechanisms. A programmable policy manager that is maintained in read-write storage can be used to dictate scheduling policy changes to the hypervisor as required to accommodate current needs.
摘要:
The present invention is a method for integrating multiple object codes from heterogeneous architectures. For a program on a first processor to reference a program from the name space of a second processor, the object code for the second-processor program is enclosed in a wrapper to create object code in the first-processor name space. The header of the wrapped object code defines a new symbol in the name space of the first processor, and the symbol points to the second-processor object code contained in the wrapped object code. Instead of directly referencing the second-processor object code, the referencing program on the first processor references the wrapped object code. A system tool can be used to wrap the object code which runs on the second processor.
摘要:
A system and method for sharing resources between real-time and virtualizing operating systems is presented. A computer system uses effective address mapping of support processors' local memory to share resources between separate operating systems. When threads are created for either operating system, the thread's corresponding processor memory is mapped into an effective address space. In doing so, the processor's local memory is accessible by the thread, regardless of whether the processor is running, or whether the processor is executing a different thread from a different operating system. For example, a computer system may have eight support processors and running two operating systems whereby the first operating system requires six support processors and the second operating system requires all eight support processors. In this example, resources are virtualized and shared between the two operating systems in order to meet the requirements of both operating systems.
摘要:
A system and method for loading software on a plurality of processors is presented. A processing unit (PU) retrieves a file from system memory and loads it into its internal memory. The PU extracts a processor type from the file's header which identifies whether the file should execute on the PU or a synergistic processing unit (SPU). If an SPU should execute the file, the PU DMA's the file to the SPU for execution. In one embodiment, the file is a combined file which includes both PU and SPU code. In this embodiment, the PU identifies one or more section headers included in the file which indicates embedded SPU code within the combined file. In this embodiment, the PU extracts the SPU code from the combined file and DMA's the extracted code to an SPU for execution.
摘要:
A system and method for virtualization of processor resources is presented. A thread is created on a processor and the processor's local memory is mapped into an effective address space. In doing so, the processor's local memory is accessible by other processors, regardless of whether the processor is running. Additional threads create additional local memory mappings into the effective address space. The effective address space corresponds to either a physical local memory or a “soft” copy area. When the processor is running, a different processor may access data that is located in the first processor's local memory from the processor's local storage area. When the processor is not running, a softcopy of the processor's local memory is stored in a memory location (i.e. locked cache memory, pinned system memory, virtual memory, etc.) for other processors to continue accessing.
摘要:
A system and method for grouping processors is presented. A processing unit (PU) initiates an application and identifies the application's requirements. The PU assigns one or more synergistic processing units (SPUs) and a memory space to the application in the form of a group. The application specifies whether the task requires shared memory or private memory. Shared memory is a memory space that is accessible by the SPUs and the PU. Private memory, however, is a memory space that is only accessible by the SPUs that are included in the group. When the application executes, the resources within the group are allocated to the application's execution thread. Each group has its own group properties, such as address space, policies (i.e. real-time, FIFO, run-to-completion, etc.) and priority (i.e. low or high). These group properties are used during thread execution to determine which groups take precedence over other tasks.
摘要:
The present invention relates to a composition for use in the treatment of a detached retina, comprising an oil and an additive capable of increasing the extensional viscosity of the oil. The present invention also relates to a method and kit of parts for producing the composition.
摘要:
A software system, such as an operating system, that has multiple parts can be deployed to a computing device incrementally, rather than all at once. The software system self-adapts to the user's needs by installing and removing system extensions automatically without user intervention. A core part of the software system is deployed in the computing device, and system extensions are delivered to the computing device when needed. The software system is aware of the system extensions, so they appear to be part of the system, even though they have not yet been downloaded. The system extensions can be delivered to the computing system on demand or over time during idle times of the computing device. Unused system extensions can be removed from the computing device, and can be downloaded again when next needed.
摘要:
A method and system for implementing a web page conversion involves one or more clickable conversion links on a web page. A conversion link can be represented by a clickable text, image, or image sequences. When a user clicks on a conversion link, a normal HTTP request is sent to a conversion server identified by the link. The conversion server looks at the ‘Referer’ header in the HTTP request to determine the URL of the web page that the user wants to convert. The conversion server fetches this web page (including text, images and other resources) through the HTTP protocol, converts it according to the type of conversion, and returns the converted page as a response to the initial HTTP request. The originating web page can be an HTML page, and the returned, converted page can be a PDF document, a WML page, or a JPEG image.
摘要:
A radiation image-able coating includes a curable polymer matrix, a metal complex disposed in the curable polymer matrix, wherein the metal complex is configured to form localized metallic particles when exposed to heat.