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1. 发明授权

US08495342B2 Configuring plural cores to perform an instruction having a multi-core characteristic 有权
标题翻译：配置多个内核以执行具有多核特性的指令
公开(公告)号：US08495342B2
公开(公告)日：2013-07-23
申请号：US12335921
申请日：2008-12-16
申请人： Louis B. Capps, Jr. , Michael J. Shapiro , Robert H. Bell, Jr. , Thomas E. Cook , William E. Burky
发明人： Louis B. Capps, Jr. , Michael J. Shapiro , Robert H. Bell, Jr. , Thomas E. Cook , William E. Burky
IPC分类号： G06F9/30
CPC分类号： G06F9/5061 , G06F9/3842 , G06F9/3851 , G06F9/3887
摘要： A processor having multiple cores coordinates functions performed on the cores to automatically, dynamically and repeatedly reconfigure the cores for optimal performance based on characteristics of currently executing software. A core running a thread detects a multi-core characteristic of the thread and assigns one or more other cores to the thread to dynamically combine the cores into what functionally amounts to a common core for more efficient execution of the thread.
摘要翻译：具有多个核的处理器协调在核上执行的功能，以基于当前执行的软件的特性自动，动态地和重复地重新配置核以获得最佳性能。运行线程的核心检测线程的多核特性，并为线程分配一个或多个其他内核，以将内核动态组合到功能上相当于共同核心的内核，从而更有效地执行线程。

2. 发明授权

US07870337B2 Power-aware line intervention for a multiprocessor snoop coherency protocol 有权
标题翻译：多处理器侦听一致性协议的功率感知线路干预
公开(公告)号：US07870337B2
公开(公告)日：2011-01-11
申请号：US11946249
申请日：2007-11-28
申请人： Robert H. Bell, Jr. , Louis B. Capps, Jr. , Thomas E. Cook , Michael J. Shapiro , Naresh Nayar
发明人： Robert H. Bell, Jr. , Louis B. Capps, Jr. , Thomas E. Cook , Michael J. Shapiro , Naresh Nayar
IPC分类号： G06F13/00 , G06F13/28 , G01R21/00 , G01R21/06 , G01R19/00
CPC分类号： G06F12/0831 , G06F2212/1028 , Y02D10/13
摘要： A snoop coherency method, system and program are provided for intervening a requested cache line from a plurality of candidate memory sources in a multiprocessor system on the basis of the sensed temperature or power dissipation value at each memory source. By providing temperature or power dissipation sensors in each of the candidate memory sources (e.g., at cores, cache memories, memory controller, etc.) that share a requested cache line, control logic may be used to determine which memory source should source the cache line by using the power sensor signals to signal only the memory source with acceptable power dissipation to provide the cache line to the requester.
摘要翻译：提供窥探一致性方法，系统和程序，用于基于每个存储器源处的感测温度或功率耗散值，在多处理器系统中从多个候选存储器源插入所请求的高速缓存行。通过在共享所请求的高速缓存行的每个候选存储器源（例如，在内核，高速缓冲存储器，存储器控制器等）中提供温度或功率耗散传感器，可以使用控制逻辑来确定哪个存储器源应该来源于高速缓存通过使用功率传感器信号仅以可接受的功率消耗信号通知存储器源，以向请求器提供高速缓存线。

3. 发明授权

US09507640B2 Multicore processor and method of use that configures core functions based on executing instructions 有权
标题翻译：基于执行指令配置核心功能的多核处理器和使用方法
公开(公告)号：US09507640B2
公开(公告)日：2016-11-29
申请号：US12335696
申请日：2008-12-16
申请人： Louis B. Capps, Jr. , Ronald E. Newhart , Thomas E. Cook , Robert H. Bell, Jr. , Michael J. Shapiro
发明人： Louis B. Capps, Jr. , Ronald E. Newhart , Thomas E. Cook , Robert H. Bell, Jr. , Michael J. Shapiro
IPC分类号： G06F9/50 , G06F11/34
CPC分类号： G06F9/30145 , G06F9/30021 , G06F9/3802 , G06F9/5044 , G06F11/3024 , G06F11/3409 , G06F15/80 , G06F2209/501
摘要： A multiprocessor system having plural heterogeneous processing units schedules instruction sets for execution on a selected of the processing units by matching workload processing characteristics of processing units and the instruction sets. To establish an instruction set's processing characteristics, the homogeneous instruction set is executed on each of the plural processing units with one or more performance metrics tracked at each of the processing units to determine which processing unit most efficiently executes the instruction set. Instruction set workload processing characteristics are stored for reference in scheduling subsequent execution of the instruction set.
摘要翻译：具有多个异构处理单元的多处理器系统通过匹配处理单元的工作负载处理特性和指令集来调度在所选择的处理单元上执行的指令集。为了建立指令集的处理特性，通过在每个处理单元跟踪的一个或多个性能度量在多个处理单元中的每一个上执行均匀指令集，以确定哪个处理单元最有效地执行指令集。指令集工作负载处理特性被存储以用于调度指令集的后续执行。

4. 发明授权

US07962770B2 Dynamic processor reconfiguration for low power without reducing performance based on workload execution characteristics 失效
标题翻译：动态处理器重新配置为低功耗，而不会降低基于工作负载执行特性的性能
公开(公告)号：US07962770B2
公开(公告)日：2011-06-14
申请号：US11960163
申请日：2007-12-19
申请人： Louis B. Capps, Jr. , Robert H. Bell, Jr. , Michael J. Shapiro
发明人： Louis B. Capps, Jr. , Robert H. Bell, Jr. , Michael J. Shapiro
IPC分类号： G06F1/26
CPC分类号： G06F1/3203 , G06F1/3243 , Y02D10/152 , Y02D50/20
摘要： A method, system and program are provided for dynamically reconfiguring a pipelined processor to operate with reduced power consumption without reducing existing performance. By monitoring or detecting the performance of individual units or stages in the processor as they execute a given workload, each stage may use high-performance circuitry until such time as a drop in the throughput performance is detected, at which point the stages are reconfigured to use lower-performance circuitry so as to meet the reduced performance throughput requirements using less power. By configuring the processor to back off from high-performance designs to low-performance designs to meet the detected performance characteristics of the executing workload warrant, power dissipation may be optimized.
摘要翻译：提供了一种方法，系统和程序，用于动态重新配置流水线处理器，以降低功耗进行操作，而不会降低现有性能。通过在处理器执行给定工作负载时监视或检测处理器中的各个单元或级的性能，每个级可以使用高性能电路，直到检测到吞吐量性能下降为止，此时将级重新配置为使用低性能电路，以便通过更少的功率来满足降低的性能吞吐量要求。通过将处理器配置为从高性能设计退回到低性能设计，以满足检测到的执行工作量保证的性能特征，可以优化功耗。

5. 发明授权

US08886918B2 Dynamic instruction execution based on transaction priority tagging 有权
标题翻译：基于事务优先级标记的动态指令执行
公开(公告)号：US08886918B2
公开(公告)日：2014-11-11
申请号：US11946504
申请日：2007-11-28
申请人： Louis B. Capps, Jr. , Robert H. Bell, Jr.
发明人： Louis B. Capps, Jr. , Robert H. Bell, Jr.
IPC分类号： G06F9/30 , G06F11/34 , G06F9/50 , G06F9/38
CPC分类号： G06F9/30101 , G06F9/3851 , G06F9/5011 , G06F11/3409 , G06F11/3466 , G06F2201/81 , G06F2201/885 , G06F2209/507 , Y02D10/22 , Y02D10/34
摘要： A method, system and program are provided for dynamically assigning priority values to instruction threads in a computer system based on one or more predetermined thread performance tests, and using the assigned instruction priorities to determine how resources are used in the system. By storing the assigning priority values for each thread as a tag in the thread's instructions, tagged instructions from different threads that are dispatched through the system are allocated system resources based on the tagged priority values assigned to the respective instruction threads. Priority values for individual threads may be updated with control software which tests thread performance and uses the test results to apply predetermined adjustment policies. The test results may be used to optimize the workload allocation of system resources by dynamically assigning thread priority values to individual threads using any desired policy, such as achieving thread execution balance relative to thresholds and to performance of other threads, reducing thread response time, lowering power consumption, etc.
摘要翻译：提供了一种方法，系统和程序，用于基于一个或多个预定的线程性能测试来动态地为计算机系统中的指令线程分配优先级值，并且使用所分配的指令优先级来确定如何在系统中使用资源。通过将每个线程的分配优先级值作为标签存储在线程的指令中，基于分配给各个指令线程的标记的优先级值来分配来自系统调度的来自不同线程的标记指令。可以使用测试线程性能的控制软件更新各个线程的优先级值，并使用测试结果来应用预定的调整策略。测试结果可用于通过使用任何期望的策略动态地将线程优先级值分配给各个线程来优化系统资源的工作量分配，例如实现相对于阈值的线程执行平衡以及其他线程的性能，减少线程响应时间，降低功耗等

6. 发明授权

US09881099B2 System, method and computer program product for data transfer management 有权
公开(公告)号：US09881099B2
公开(公告)日：2018-01-30
申请号：US12786072
申请日：2010-05-24
申请人： Robert H. Bell, Jr. , Louis Bennie Capps, Jr. , Danie M. Dreps , Luis A Lastras-Montano , Michael J Shapiro
发明人： Robert H. Bell, Jr. , Louis Bennie Capps, Jr. , Danie M. Dreps , Luis A Lastras-Montano , Michael J Shapiro
IPC分类号： G06F17/30 , G06F12/00 , G06K9/62
CPC分类号： G06F17/30899 , G06F17/30259 , G06K9/6202
摘要： According to one aspect of the present disclosure a method and technique for managing data transfer is disclosed. The method includes comparing, by a processor unit of a data processing system, data to be written to a memory subsystem to a stored data pattern and, responsive to determining that the data matches the stored data pattern, replacing the matching data with a pattern tag corresponding to the matching data pattern. The method also includes transmitting the pattern tag to the memory subsystem.

7. 发明授权

US09582284B2 Performance of processors is improved by limiting number of branch prediction levels 有权
标题翻译：通过限制分支预测级别的数量来提高处理器的性能
公开(公告)号：US09582284B2
公开(公告)日：2017-02-28
申请号：US13308696
申请日：2011-12-01
申请人： Robert H. Bell, Jr. , Wen-Tzer T. Chen
发明人： Robert H. Bell, Jr. , Wen-Tzer T. Chen
IPC分类号： G06F9/38 , G06F11/30
CPC分类号： G06F9/3844 , G06F9/3842 , G06F11/30 , G06F11/3024 , G06F11/3409 , G06F2201/81
摘要： A method utilizes information provided by performance monitoring hardware to dynamically adjust the number of levels of speculative branch predictions allowed (typically 3 or 4 per thread) for a processor core. The information includes cycles-per-instruction (CPI) for the processor core and number of memory accesses per unit time. If the CPI is below a CPI threshold; and the number of memory accesses (NMA) per unit time is above a prescribed threshold, the number of levels of speculative branch predictions is reduced per thread for the processor core. Likewise, the number of levels of speculative branch predictions could be increased, from a low level to maximum allowed, if the CPI threshold is exceeded or the number of memory accesses per unit time is below the prescribed threshold.
摘要翻译：一种方法利用由性能监视硬件提供的信息来动态调整对于处理器核心允许的推测分支预测级别（通常为每线程3或4个）。该信息包括处理器核心的每个指令周期（CPI）和每单位时间的存储器访问次数。如果CPI低于CPI阈值; 并且每单位时间的存储器访问次数（NMA）高于规定的阈值，则对于处理器核，每个线程的推测分支预测的级别数量减少。同样地，如果超过CPI阈值或每单位时间的存储器访问次数低于规定的阈值，则可以将推测分支预测的级数从低级别增加到允许的最大级别。

8. 发明授权

US09298458B2 Performance of emerging applications in a virtualized environment using transient instruction streams 有权
公开(公告)号：US09298458B2
公开(公告)日：2016-03-29
申请号：US13427083
申请日：2012-03-22
申请人： Robert H. Bell, Jr. , Hong L. Hua , Ram Raghavan , Mysore S. Srinivas
发明人： Robert H. Bell, Jr. , Hong L. Hua , Ram Raghavan , Mysore S. Srinivas
IPC分类号： G06F9/30 , G06F9/38
CPC分类号： G06F9/30054 , G06F9/30185 , G06F9/3802
摘要： A method, system and computer-usable medium are disclosed for managing transient instruction streams. Transient flags are defined in Branch-and-Link (BRL) instructions that are known to be infrequently executed. A bit is likewise set in a Special Purpose Register (SPR) of the hardware (e.g., a core) that is executing an instruction request thread. Subsequent fetches or prefetches in the request thread are treated as transient and are not written to lower-level caches. If an instruction is non-transient, and if a lower-level cache is non-inclusive of the L1 instruction cache, a fetch or prefetch miss that is obtained from memory may be written in both the L1 and the lower-level cache. If it is not inclusive, a cast-out from the L1 instruction cache may be written in the lower-level cache.

9. 发明授权

US08943272B2 Variable cache line size management 有权
标题翻译：可变缓存行大小管理
公开(公告)号：US08943272B2
公开(公告)日：2015-01-27
申请号：US13451742
申请日：2012-04-20
申请人： Robert H. Bell, Jr. , Wen-Tzer T. Chen , Diane G. Flemming , Hong L. Hua , William A. Maron , Mysore S. Srinivas
发明人： Robert H. Bell, Jr. , Wen-Tzer T. Chen , Diane G. Flemming , Hong L. Hua , William A. Maron , Mysore S. Srinivas
IPC分类号： G06F12/00 , G06F12/08
CPC分类号： G06F12/08 , G06F12/0811 , G06F12/0897
摘要： According to one aspect of the present disclosure, a method and technique for variable cache line size management is disclosed. The method includes: determining whether an eviction of a cache line from an upper level sectored cache to an unsectored lower level cache is to be performed, wherein the upper level cache includes a plurality of sub-sectors, each sub-sector having a cache line size corresponding to a cache line size of the lower level cache; responsive to determining that an eviction is to be performed, identifying referenced sub-sectors of the cache line to be evicted; invalidating unreferenced sub-sectors of the cache line to be evicted; and storing the referenced sub-sectors in the lower level cache.
摘要翻译：根据本公开的一个方面，公开了一种用于可变高速缓存行大小管理的方法和技术。该方法包括：确定是否执行将高速缓存行从高级扇区高速缓存驱逐到未故障的较低级高速缓存，其中高级缓存包括多个子扇区，每个子扇区具有高速缓存行对应于较低级缓存的高速缓存行大小的大小; 响应于确定要执行驱逐，识别要被驱逐的高速缓存行的参考子扇区; 使要删除的缓存行的未引用子扇区无效; 并将所引用的子扇区存储在下级缓存中。

10. 发明授权

US08769210B2 Dynamic prioritization of cache access 有权
标题翻译：高速缓存访问的动态优先级
公开(公告)号：US08769210B2
公开(公告)日：2014-07-01
申请号：US13323076
申请日：2011-12-12
申请人： Robert H. Bell, Jr. , Hong L. Hua , William A. Maron , Mysore S. Srinivas
发明人： Robert H. Bell, Jr. , Hong L. Hua , William A. Maron , Mysore S. Srinivas
IPC分类号： G06F12/08
CPC分类号： G06F12/0815
摘要： Some embodiments of the inventive subject matter are directed to a cache comprising a tracking unit and cache state machines. In some embodiments, the tracking unit is configured to track an amount of cache resources used to service cache misses within a past period. In some embodiments, each of the cache state machines is configured to, determine whether a memory access request results in a cache miss or cache hit, and in response to a cache miss for a memory access request, query the tracking unit for the amount of cache resources used to service cache misses within the past period. In some embodiments, the each of the cache state machines is configured to service the memory access request based, at least in part, on the amount of cache resources used to service the cache misses within the past period according to the tracking unit.
摘要翻译：本发明主题的一些实施例涉及包括跟踪单元和高速缓存状态机的高速缓存。在一些实施例中，跟踪单元被配置为跟踪用于在过去时间段内服务高速缓存未命中的高速缓存资源的量。在一些实施例中，每个高速缓存状态机被配置为，确定存储器访问请求是否导致高速缓存未命中或高速缓存命中，并且响应于存储器访问请求的高速缓存未命中，查询跟踪单元的数量用于在过去一段时间内缓存未命中服务的缓存资源。在一些实施例中，每个高速缓存状态机被配置为至少部分地基于用于根据跟踪单元在过去时段内服务高速缓存未命中的高速缓存资源的量来服务存储器访问请求。

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