Patent application number | Description | Published |
20080250233 | Providing thread fairness in a hyper-threaded microprocessor - A method and apparatus for providing fairness in a multi-processing element environment is herein described. Mask elements are utilized to associated portions of a reservation station with each processing element, while still allowing common access to another portion of reservation station entries. Additionally, bias logic biases selection of processing elements in a pipeline away from a processing element associated with a blocking stall to provide fair utilization of the pipeline. | 10-09-2008 |
20100169582 | Obtaining data for redundant multithreading (RMT) execution - In one embodiment, the present invention includes a method for providing a cache block in an exclusive state to a first cache and providing the same cache block in the exclusive state to a second cache when cores accessing the two caches are executing redundant threads. Other embodiments are described and claimed. | 07-01-2010 |
20100169628 | Controlling non-redundant execution in a redundant multithreading (RMT) processor - In one embodiment, the present invention includes a method for controlling redundant execution such that if an exceptional event occurs, the redundant execution is stopped, non-redundant execution is performed in one of the threads until the exceptional event has been-resolved, after which a state of the threads is synchronized, and redundant execution is continued. Other embodiments are described and claimed. | 07-01-2010 |
20110055524 | PROVIDING THREAD FAIRNESS IN A HYPER-THREADED MICROPROCESSOR - A method and apparatus for providing fairness in a multi-processing element environment is herein described. Mask elements are utilized to associated portions of a reservation station with each processing element, while still allowing common access to another portion of reservation station entries. Additionally, bias logic biases selection of processing elements in a pipeline away from a processing element associated with a blocking stall to provide fair utilization of the pipeline. | 03-03-2011 |
20110055525 | PROVIDING THREAD FAIRNESS IN A HYPER-THREADED MICROPROCESSOR - A method and apparatus for providing fairness in a multi-processing element environment is herein described. Mask elements are utilized to associated portions of a reservation station with each processing element, while still allowing common access to another portion of reservation station entries. Additionally, bias logic biases selection of processing elements in a pipeline away from a processing element associated with a blocking stall to provide fair utilization of the pipeline. | 03-03-2011 |
20110307894 | Redundant Multithreading Processor - A redundant multithreading processor is presented. In one embodiment, the processor performs execution of a thread and its duplicate thread in parallel and determines, when in a redundant multithreading mode, whether or not to synchronize an operation of the thread and an operation of the duplicate thread. | 12-15-2011 |
20130013898 | Managing Multiple Threads In A Single Pipeline - In one embodiment, the present invention includes a method for determining if an instruction of a first thread dispatched from a first queue associated with the first thread is stalled in a pipestage of a pipeline, and if so, dispatching an instruction of a second thread from a second queue associated with the second thread to the pipeline if the second thread is not stalled. Other embodiments are described and claimed. | 01-10-2013 |
20140052963 | TECHNIQUE TO PERFORM THREE-SOURCE OPERATIONS - A technique to perform three-source instructions. At least one embodiment of the invention relates to converting a three-source instruction into at least two instructions identifying no more than two source values. | 02-20-2014 |
20140095838 | Physical Reference List for Tracking Physical Register Sharing - A processor includes a processing unit including a storage module having stored thereon a physical reference list for storing identifications of physical registers that have been referenced by multiple logical registers, and a reclamation module for reclaiming physical registers to a free list based on a count of each of the physical registers on the physical reference list. | 04-03-2014 |
20140195790 | PROCESSOR WITH SECOND JUMP EXECUTION UNIT FOR BRANCH MISPREDICTION - A secondary jump execution unit (JEU) is incorporated in a micro-processor to operate concurrently with a primary JEU, enabling the execution of simultaneous branch operations with possible detection of multiple branch mispredicts. When branch operations are executed on both JEUs in a same instruction cycle, mispredict processing for the secondary JEU is skidded into the primary JEU's dispatch pipeline such that the branch processing for the secondary JEU occurs after processing of the branch for the primary JEU and while the primary JEU is not processing a branch. Moreover, in cases when a nuke command is also received from a reorder buffer of the processor, the branch processing for the secondary JEU is further delayed to accommodate processing of the nuke on the primary JEU. Further embodiments support the promotion of the secondary JEU to have access to the mispredict mechanisms of the primary JEU in certain circumstances. | 07-10-2014 |