摘要:
A system and method is provided to deliver messages to processors operating in a multi-processing environment. In a multi-processor environment, interrupts are managed by storing events in a queue that correspond to a particular support processor. A main processor decodes an interrupt and determines which support processor generated the interrupt. The main processor then determines whether a kernel or an application should process the interrupt. Interrupts such as page faults, segment faults, and alignment errors are handled by the kernel, while “informational” signals, such as stop and signal requests, halt requests, mailbox requests, and DMC tag complete requests are handled by the application. In addition, multiple identical events are maintained, and event data may be included in the interrupt using the invention described herein.
摘要:
A computer implemented method, data processing system, and computer usable code are provided for generation of software thermal profiles for applications executing on a set of processors using thermal sampling. Sampling is performed of the thermal states of the set of processors for the set of workloads to create sampled information. A thermal index is then generated based on the sampled information.
摘要:
A computer implemented method, data processing system, and computer usable code are provided for optimizing thermal performance of a computer system. A set of system resources associated with the computer system are identified. A thermal index is requested for each of the set of system resources to form a set of thermal indexes. A thermal constraint is loaded and software is compiled using the set of thermal indexes in order not to exceed the thermal constraint.
摘要:
A computer implemented method, data processing system, and computer usable code are provided the generation of software thermal profiles for applications executed on a set of processors in a simulated environment. Execution of a software program being run on a software simulator is detected and hardware operations for the software program being executed by the set of processors are analyzed to create analyzed information. Then, a thermal index is generated based on the analyzed information.
摘要:
A computer implemented method, data processing system, and computer usable code are provided for analytical generation of software thermal profiles. In order to generate a thermal profile, a set of instruction streams are analyzed for a program being executed by a set of processors to create analyzed information. A thermal index is generated based on the analyzed information.
摘要:
A system and method for an asymmetric heterogeneous multi-threaded operating system are presented. A processing unit (PU) provides a trusted mode environment in which an operating system executes. A heterogeneous processor environment includes a synergistic processing unit (SPU) that does not provide trusted mode capabilities. The PU operating system uses two separate and distinct schedulers which are a PU scheduler and an SPU scheduler to schedule tasks on a PU and an SPU, respectively. In one embodiment, the heterogeneous processor environment includes a plurality of SPUs. In this embodiment, the SPU scheduler may use a single SPU run queue to schedule tasks for the plurality of SPUs or, the SPU scheduler may use a plurality of run queues to schedule SPU tasks whereby each of the run queues correspond to a particular SPU.
摘要:
A system and method for a processor thread acting as a system service provider is presented. A computer system boots up and initiates a service thread. The service thread is responsible for service related tasks, such as ECC checks and hardware log error checks. The service provider invokes a second thread which is used as an operational thread. The operational thread loads an operating system, a kernel, and runs various applications. While the operational thread executes, the service thread monitors the operational thread for proper functionality as well as monitoring service events. When the service thread detects a problem with either one of the service events or the operational thread, the service thread may choose to store operational data corresponding to the operational thread and terminates the operational thread.
摘要:
A computer implemented method, data processing system, and computer usable code are provided for using software and hardware thermal profiles to schedule the execution of applications. Hardware and software thermal profiles are generated for a set of processors and a set of applications, respectively, to form a plurality of hardware and software thermal profiles. Then a set of hardware and software thermal profiles are selected from the plurality of hardware and software thermal profiles. The set of software thermal profiles and the set of hardware thermal profiles are used to generate a thermal index. Finally, the execution of the set of applications is scheduled using the thermal index.
摘要:
A method and a system for managing a computer system's multiple processors as devices. The operating system accesses the multiple processors using processor device modules loaded into the operating system to facilitate a communication between an application requesting access to a processor and the processor. A device-like access is determined for accessing each one of the processors similar to device-like access for other devices in the system such as disk drives, printers, etc. An application seeking access to a processor issues device-oriented instructions for processing data, and in addition, the application provides the processor with the data to be processed. The processor processes the data according to the instructions provided by the application.
摘要:
A system and method for using a processor thread as a debugger is presented. A computer system boots up and initiates a debugger thread. The debugger thread loads a robust, debugger operating system and executes the debugger operating system. Once the debugger thread is functioning, the debugger thread invokes an operational thread. In turn, the operational thread loads a primary operating system and may run various applications. While the operational thread executes the primary operating system and the applications, the debugger thread monitors the operational thread for proper functionality. When the operational thread crashes or terminates, the debugger thread retrieves operational data from the operational thread and provides the operational data to a software developer for analysis.