Abstract:
A method and a system is provided for the processing of data or signals with a number of functional units which are each adapted to apply one or several functions to the data or signals, and which are connected with each other via a connection matrix for the exchange of data or signals between the functional units. At least one functional unit of the system is programmable and/or configurable such that it performs a particular function out of a number of different functions. The connection matrix is programmed and/or configured such that the functional units are connected with each other in a particular configuration out of a number of different configurations.
Abstract:
A mechanism is provided for redundant execution of a set of instructions. A redundant execution begin (rbegin) instruction to be executed by a first hardware thread on the first processor is identified in the set of instructions. The set of instructions immediately after the rbegin instruction are executed on the first hardware thread and on a second hardware thread. Responsive to both the first processor and the second processor ending execution of the set of instructions, responsive to a first set of cache lines in a first speculative store matching a second set of cache lines in a second speculative store, and responsive to a first set of register states in a first status register matching a second set of register states in a second status register, dirty lines in the first speculative store are committed thereby committing a redundant transaction state to an architectural state.
Abstract:
System, method and computer program product for a multiprocessing system to offer selective pairing of processor cores for increased processing reliability. A selective pairing facility is provided that selectively connects, i.e., pairs, multiple microprocessor or processor cores to provide one highly reliable thread (or thread group). Each paired microprocessor or processor cores that provide one highly reliable thread for high-reliability connect with a system components such as a memory “nest” (or memory hierarchy), an optional system controller, and optional interrupt controller, optional I/O or peripheral devices, etc. The memory nest is attached to a selective pairing facility via a switch or a bus. Each selectively paired processor core is includes a transactional execution facility, wherein the system is configured to enable processor rollback to a previous state and reinitialize lockstep execution in order to recover from an incorrect execution when an incorrect execution has been detected by the selective pairing facility.
Abstract:
The invention relates to a multichannel controller module for integrated modular avionics, having at least two channels, wherein, in each of the channels, at least one first interface, which is intended for communication with a control computer, a processor, at least one second interface, which is intended for communication with a peripheral, and a first memory, which is provided with an operating system, are connected in order to interchange data with one another, wherein a second memory is provided for selective storage of at least one application program for communication with the peripheral, wherein a selection means is provided, by means of which the application program is selectively assigned a first or a second mode of operation, wherein the first mode of operation is a redundant duplex mode of operation, in which both channels are used to execute the application program, and the two channels are in this case connected to one another via a data interchange and fault monitoring means, and wherein the second mode of operation is a non-redundant simplex mode of operation, in which only one of the two channels is used to .execute the application program, and the data interchange and fault monitoring means is in this case deactivated.
Abstract:
An input/output control apparatus including: a unit that controls input/output of data relating to a computation of a plurality of processors in response to an access request from a second input/output unit and an access request from a first input/output unit which requires higher reliability than said second input/output unit, and orders at least one of a plurality of processors to perform a computation relating to the access request from said first input/output unit away from the computation relating to the access request from said second input/output unit in case of that said first input/output unit issued an access request, so that a same computation is made by said plurality of processors; a unit that compares the results of said computations relative to the access request from said first input/output unit provided from said plurality of processors; and a unit that allows the data associated with said computations of said processors to be output on the basis of said compared results.
Abstract:
A storage apparatus includes: an associating unit that associates a first memory area in which data to be copied are stored and a second memory area of a destination storage apparatus to which the data are copied; a detecting unit that detects a start or an end of copying the data from the first memory area to the second memory area associated by the associating unit; and an access control unit that controls access to the first memory area and the second memory area based on a result of detection performed by the detecting unit.
Abstract:
A system for distributing available memory resource comprising at least two random access memory (RAM) elements and RAM routing logic. The RAM routing logic comprises configuration logic to dynamically distribute the available memory resource into a first memory area providing redundant memory storage and a second memory area providing non-redundant memory storage.
Abstract:
A unit and method for clock changeover in a system having at least two processing units, in which switchover device(s) are provided by which a switchover between at least two operating modes of the system is able to be implemented in which a clock pulse changeover is carried out in at least one processing unit in a switching of the operating mode.
Abstract:
An electronic adapter device and an electronic system that comprises the electronic adapter device are described. The electronic adapter device comprises a device and a redundant device able to receive data from a first plurality of electronic devices and redundant data from a second plurality of electronic devices, and able to select therefrom first data and first redundant data respectively. The electronic adapter device also comprises a controller able to receive the selected first data and the selected first redundant data and is able to generate therefrom an error signal indicating a fault in an electronic device of the first plurality or a fault in the device.
Abstract:
A microcontroller capable of improving processing performance as a whole by executing different programs by a plurality of CPUs and capable of detecting abnormality for safety-required processing by evaluating results of the same processing executed by the plurality of CPUs. A plurality of processing systems including CPUs and memories are provided, data output from the CPUs in each of the processing systems is separately compressed and stored by compressors for each of the CPUs, respectively. The compressed storage data is mutually compared by a comparator, and abnormality of processing can be detected when the comparison result indicates a mismatch. Even when the timings by which the same processing results are obtained are different when the plurality of CPUs asynchronously execute the same processing, the processing results of both of them can be easily compared with each other since compression is carried out by the compressors. Moreover, since the comparison of the comparator is enabled when comparison enable is given from all the CPUs, the comparison operation result can be obtained based on the timing at which the results of compression by the plurality of compressors are determined.