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1.发明授权Adaptive mechanisms and methods for supplying volatile data copies in multiprocessor systems 有权用于在多处理器系统中提供易失性数据副本的自适应机制和方法公开(公告)号：US08131938B2
公开(公告)日：2012-03-06
申请号：US12248209
申请日：2008-10-09
IPC分类号： G06F12/00
CPC分类号： G06F12/0811 , G06F12/0804 , G06F12/0831 , G06F2212/1016 , G06F2212/507
摘要： In a computer system with a memory hierarchy, when a high-level cache supplies a data copy to a low-level cache, the shared copy can be either volatile or non-volatile. When the data copy is later replaced from the low-level cache, if the data copy is non-volatile, it needs to be written back to the high-level cache; otherwise it can be simply flushed from the low-level cache. The high-level cache can employ a volatile-prediction mechanism that adaptively determines whether a volatile copy or a non-volatile copy should be supplied when the high-level cache needs to send data to the low-level cache. An exemplary volatile-prediction mechanism suggests use of a non-volatile copy if the cache line has been accessed consecutively by the low-level cache. Further, the low-level cache can employ a volatile-promotion mechanism that adaptively changes a data copy from volatile to non-volatile according to some promotion policy, or changes a data copy from non-volatile to volatile according to some demotion policy.
摘要翻译： 在具有存储器层次结构的计算机系统中，当高级缓存将数据拷贝提供给低级缓存时，共享副本可以是易失性的或非易失性的。 当数据拷贝稍后从低级缓存中替换时，如果数据拷贝是非易失性的，则需要将其写回高级缓存; 否则可以从低级缓存中简单地刷新。 高级缓存可以采用易失性预测机制，其自动地确定当高级缓存需要向低级缓存发送数据时是否应提供易失性拷贝或非易失性拷贝。 示例性的易失性预测机制建议如果高速缓存行已被低级缓存连续访问，则使用非易失性拷贝。 此外，低级缓存可以使用根据某些促销策略自动地将数据拷贝从易失性地改变为非易失性的易失性促进机制，或者根据某种降级策略将数据拷贝从非易失性变为不稳定。
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2.发明申请Adaptive Mechanisms and Methods for Supplying Volatile Data Copies in Multiprocessor Systems 有权在多处理器系统中提供易失性数据副本的自适应机制和方法公开(公告)号：US20090043966A1
公开(公告)日：2009-02-12
申请号：US12248209
申请日：2008-10-09
IPC分类号： G06F12/08
CPC分类号： G06F12/0811 , G06F12/0804 , G06F12/0831 , G06F2212/1016 , G06F2212/507
摘要： In a computer system with a memory hierarchy, when a high-level cache supplies a data copy to a low-level cache, the shared copy can be either volatile or non-volatile. When the data copy is later replaced from the low-level cache, if the data copy is non-volatile, it needs to be written back to the high-level cache; otherwise it can be simply flushed from the low-level cache. The high-level cache can employ a volatile-prediction mechanism that adaptively determines whether a volatile copy or a non-volatile copy should be supplied when the high-level cache needs to send data to the low-level cache. An exemplary volatile-prediction mechanism suggests use of a non-volatile copy if the cache line has been accessed consecutively by the low-level cache. Further, the low-level cache can employ a volatile-promotion mechanism that adaptively changes a data copy from volatile to non-volatile according to some promotion policy, or changes a data copy from non-volatile to volatile according to some demotion policy.
摘要翻译： 在具有存储器层次结构的计算机系统中，当高级缓存将数据拷贝提供给低级缓存时，共享副本可以是易失性的或非易失性的。 当数据拷贝稍后从低级缓存中替换时，如果数据拷贝是非易失性的，则需要将其写回高级缓存; 否则可以从低级缓存中简单地刷新。 高级缓存可以采用易失性预测机制，其自动地确定当高级缓存需要向低级缓存发送数据时是否应提供易失性拷贝或非易失性拷贝。 示例性的易失性预测机制建议如果高速缓存行已被低级缓存连续访问，则使用非易失性拷贝。 此外，低级缓存可以使用根据某些促销策略自动地将数据拷贝从易失性地改变为非易失性的易失性促进机制，或者根据某种降级策略将数据拷贝从非易失性变为不稳定。
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3.发明申请ADAPTIVE MECHANISMS AND METHODS FOR SUPPLYING VOLATILE DATA COPIES IN MULTIPROCESSOR SYSTEMS 失效自适应机制和方法供应多处理器系统中的挥发性数据复制公开(公告)号：US20080282032A1
公开(公告)日：2008-11-13
申请号：US11458192
申请日：2006-07-18
IPC分类号： G06F12/00
CPC分类号： G06F12/0811 , G06F12/0804 , G06F12/0831 , G06F2212/1016 , G06F2212/507
摘要： In a computer system with a memory hierarchy, when a high-level cache supplies a data copy to a low-level cache, the shared copy can be either volatile or non-volatile. When the data copy is later replaced from the low-level cache, if the data copy is non-volatile, it needs to be written back to the high-level cache; otherwise it can be simply flushed from the low-level cache. The high-level cache can employ a volatile-prediction mechanism that adaptively determines whether a volatile copy or a non-volatile copy should be supplied when the high-level cache needs to send data to the low-level cache. An exemplary volatile-prediction mechanism suggests use of a non-volatile copy if the cache line has been accessed consecutively by the low-level cache. Further, the low-level cache can employ a volatile-promotion mechanism that adaptively changes a data copy from volatile to non-volatile according to some promotion policy, or changes a data copy from non-volatile to volatile according to some demotion policy.
摘要翻译： 在具有存储器层次结构的计算机系统中，当高级缓存将数据拷贝提供给低级缓存时，共享副本可以是易失性的或非易失性的。 当数据拷贝稍后从低级缓存中替换时，如果数据拷贝是非易失性的，则需要将其写回高级缓存; 否则可以从低级缓存中简单地刷新。 高级缓存可以采用易失性预测机制，其自动地确定当高级缓存需要向低级缓存发送数据时是否应提供易失性拷贝或非易失性拷贝。 示例性的易失性预测机制建议如果高速缓存行已被低级缓存连续访问，则使用非易失性拷贝。 此外，低级缓存可以使用根据某些促销策略自动地将数据拷贝从易失性地改变为非易失性的易失性促进机制，或者根据某种降级策略将数据拷贝从非易失性变为不稳定。
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4.发明授权Adaptive mechanisms for supplying volatile data copies in multiprocessor systems 失效用于在多处理器系统中提供易失性数据副本的自适应机制公开(公告)号：US07478197B2
公开(公告)日：2009-01-13
申请号：US11458192
申请日：2006-07-18
IPC分类号： G06F12/00
CPC分类号： G06F12/0811 , G06F12/0804 , G06F12/0831 , G06F2212/1016 , G06F2212/507
摘要： In a computer system with a memory hierarchy, when a high-level cache supplies a data copy to a low-level cache, the shared copy can be either volatile or non-volatile. When the data copy is later replaced from the low-level cache, if the data copy is non-volatile, it needs to be written back to the high-level cache; otherwise it can be simply flushed from the low-level cache. The high-level cache can employ a volatile-prediction mechanism that adaptively determines whether a volatile copy or a non-volatile copy should be supplied when the high-level cache needs to send data to the low-level cache. An exemplary volatile-prediction mechanism suggests use of a non-volatile copy if the cache line has been accessed consecutively by the low-level cache. Further, the low-level cache can employ a volatile-promotion mechanism that adaptively changes a data copy from volatile to non-volatile according to some promotion policy, or changes a data copy from non-volatile to volatile according to some demotion policy.
摘要翻译： 在具有存储器层次结构的计算机系统中，当高级缓存将数据拷贝提供给低级缓存时，共享副本可以是易失性的或非易失性的。 当数据拷贝稍后从低级缓存中替换时，如果数据拷贝是非易失性的，则需要将其写回高级缓存; 否则可以从低级缓存中简单地刷新。 高级缓存可以采用易失性预测机制，其自动地确定当高级缓存需要向低级缓存发送数据时是否应提供易失性拷贝或非易失性拷贝。 示例性的易失性预测机制建议如果高速缓存行已被低级缓存连续访问，则使用非易失性拷贝。 此外，低级缓存可以使用根据某些促销策略自动地将数据拷贝从易失性变更为非易失性的易失性促进机制，或者根据某种降级策略将数据副本从非易失性变为不稳定。
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