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1. 发明申请

US20090006767A1 USING EPHEMERAL STORES FOR FINE-GRAINED CONFLICT DETECTION IN A HARDWARE ACCELERATED STM 有权
标题翻译：在硬件加速STM中使用EPHEMERAL STORES进行细粒度冲突检测
公开(公告)号：US20090006767A1
公开(公告)日：2009-01-01
申请号：US11769094
申请日：2007-06-27
申请人： Bratin Saha , Ali-Reza Adl-Tabatabai , Gad Sheaffer , Quinn Jacobson
发明人： Bratin Saha , Ali-Reza Adl-Tabatabai , Gad Sheaffer , Quinn Jacobson
IPC分类号： G06F12/08 , G06F12/00 , G06F9/46
CPC分类号： G06F12/14 , G06F8/458 , G06F9/52 , G06F9/522 , G06F12/0802 , G06F12/1483
摘要： A method and apparatus for fine-grained filtering in a hardware accelerated software transactional memory system is herein described. A data object, which may have any arbitrary size, is associated with a filter word. The filter word is in a first default state when no access, such as a read, from the data object has occurred during a pendancy of a transaction. Upon encountering a first access, such as a first read, from the data object, access barrier operations including an ephemeral/private store operation to set the filter word to a second state are performed. Upon a subsequent/redundant access, such as a second read, the access barrier operations are elided to accelerate the subsequent access, based on the filter word being set to the second state to indicate a previous access occurred.
摘要翻译：这里描述了用于硬件加速软件事务存储器系统中的细粒度过滤的方法和装置。可以具有任意大小的数据对象与过滤字相关联。当在事务的挂起期间没有发生来自数据对象的访问（例如读取）时，过滤器字处于第一默认状态。在从数据对象遇到诸如第一次读取的第一次访问时，执行包括将过滤词设置为第二状态的临时/私人存储操作的访问障碍操作。在诸如第二次读取的后续/冗余访问之后，基于滤波器字被设置为第二状态来指示先前访问发生，访问屏障操作被消除以加速后续访问。

2. 发明授权

US08185698B2 Hardware acceleration of a write-buffering software transactional memory 有权
公开(公告)号：US08185698B2
公开(公告)日：2012-05-22
申请号：US11784859
申请日：2007-04-09
申请人： Bratin Saha , Ali-Reza Adl-Tabatabai , Quinn Jacobson
发明人： Bratin Saha , Ali-Reza Adl-Tabatabai , Quinn Jacobson
IPC分类号： G06F12/00
CPC分类号： G06F9/3834 , G06F9/3851 , G06F9/3863 , G06F9/467 , G06F12/0842
摘要： A method and apparatus for accelerating a software transactional memory (STM) system is described herein. Annotation field are associated with lines of a transactional memory. An annotation field associated with a line of the transaction memory is initialized to a first value upon starting a transaction. In response to encountering a read operation in the transaction, then annotation field is checked. If the annotation field includes a first value, the read is serviced from the line of the transaction memory without having to search an additional write space. A second and third value in the annotation field potentially indicates whether a read operation missed the transactional memory or a tentative value is stored in a write space. Additionally, an additional bit in the annotation field, may be utilized to indicate whether previous read operations have been logged, allowing for subsequent redundant read logging to be reduced.

3. 发明申请

US20070186056A1 Hardware acceleration for a software transactional memory system 审中-公开
标题翻译：软件交易内存系统的硬件加速
公开(公告)号：US20070186056A1
公开(公告)日：2007-08-09
申请号：US11349787
申请日：2006-02-07
申请人： Bratin Saha , Ali-Reza Adl-Tabatabai , Quinn Jacobson
发明人： Bratin Saha , Ali-Reza Adl-Tabatabai , Quinn Jacobson
IPC分类号： G06F13/28
CPC分类号： G06F13/4243 , G06F9/3834 , G06F9/466 , G06F9/526
摘要： A method and apparatus for accelerating transactional execution. Barriers associated with shared memory lines reference by memory accesses within a transaction are only invoked/executed the first time the shared memory lines are accessed within a transaction. Hardware support, such as a transaction field/transaction bits, are provided to determine if an access is the first access to a shared memory line during a pendancy of a transaction. Additionally, in an aggressive operational mode version numbers representing versions of elements stored in shared memory lines are not stored and validated upon commitment to save on validation cost. Moreover, even in a cautious mode, that stores version numbers to enable validation, validation costs may not be incurred, if eviction of accessed shared memory lines do not occur during execution of the transaction.
摘要翻译：一种用于加速事务执行的方法和装置。只有在事务中首次访问共享内存条时，才会调用/执行与事务中的内存访问相关联的共享内存条引用的障碍。提供诸如事务字段/事务位之类的硬件支持来确定访问是否是在事务挂起期间对共享存储器行的第一次访问。另外，在积极的操作模式中，代表存储在共享存储器行中的元素的版本号的版本号在保存验证成本的承诺时不被存储和验证。而且，即使在谨慎的模式下，存储版本号以启用验证，如果在执行交易期间没有发生访问的共享内存条的驱逐，则可能不会产生验证成本。

4. 发明申请

US20070186055A1 Technique for using memory attributes 有权
标题翻译：使用内存属性的技术
公开(公告)号：US20070186055A1
公开(公告)日：2007-08-09
申请号：US11349661
申请日：2006-02-07
申请人： Quinn Jacobson , Anne Bracy , Hong Wang , John Shen , Per Hammarlund , Matthew Merten , Suresh Srinivas , Kshitij Doshi , Gautham Chinya , Bratin Saha , Ali-Reza Adl-Tabatabai , Gad Sheaffer
发明人： Quinn Jacobson , Anne Bracy , Hong Wang , John Shen , Per Hammarlund , Matthew Merten , Suresh Srinivas , Kshitij Doshi , Gautham Chinya , Bratin Saha , Ali-Reza Adl-Tabatabai , Gad Sheaffer
IPC分类号： G06F13/28
CPC分类号： G06F12/0815 , G06F11/3471 , G06F11/3648 , G06F12/0804 , G06F12/0817 , G06F12/0831 , G06F12/0842 , G06F12/145 , G06F2201/865
摘要： A technique for using memory attributes to relay information to a program or other agent. More particularly, embodiments of the invention relate to using memory attribute bits to check various memory properties in an efficient manner.
摘要翻译：使用存储器属性将信息中继到程序或其他代理的技术。更具体地，本发明的实施例涉及使用存储器属性位以有效的方式检查各种存储器特性。

5. 发明授权

US08719807B2 Handling precompiled binaries in a hardware accelerated software transactional memory system 有权
标题翻译：在硬件加速软件事务内存系统中处理预编译的二进制文件
公开(公告)号：US08719807B2
公开(公告)日：2014-05-06
申请号：US11648008
申请日：2006-12-28
申请人： Bratin Saha , Ali-Reza Adl-Tabatabai , Quinn Jacobson
发明人： Bratin Saha , Ali-Reza Adl-Tabatabai , Quinn Jacobson
IPC分类号： G06F9/45 , G06F9/30 , G06F13/00
CPC分类号： G06F9/30087 , G06F9/3004 , G06F9/30043 , G06F9/30076 , G06F9/3834 , G06F9/3851 , G06F9/3861 , G06F9/467 , G06F12/0837 , G06F2212/62
摘要： A method and apparatus for enabling a Software Transactional Memory (STM) with precompiled binaries is herein described. Upon encountering an access operation in a transaction, an annotation field associated with a memory location referenced by the access is checked. In response to the memory location representing a previous similar access within the transaction, the access is performed without access barriers. However, if the annotation field is in a default state representing no previous access during a pendancy of the transaction, then a mode of the processor is determined. If the processor mode is in implicit mode, an access handler/barrier is asynchronously executed. Conversely, in an explicit mode, a flag is set instead of asynchronously executing the handler. In addition, during compilation convert explicit and convert implicit instructions are inserted to intelligently convert modes for precompiled and newly compiled binaries. Furthermore, new versions of newly compiled functions may be inserted to provide strong atomicity between previously and newly compiled functions.
摘要翻译：这里描述了使用预编译二进制文件实现软件事务存储器（STM）的方法和装置。在事务中遇到访问操作时，检查与由访问引用的存储器位置相关联的注释字段。响应于表示事务内先前类似访问的存储器位置，访问被执行而没有访问障碍。然而，如果注释字段处于表示在事务的挂起期间没有先前访问的默认状态，则确定处理器的模式。如果处理器模式处于隐式模式，则异步执行访问处理程序/障碍。相反，在显式模式下，设置标志而不是异步执行处理程序。此外，在编译期间，转换显式和转换隐式指令将被智能地转换为预编译和新编译的二进制文件的模式。此外，可以插入新版本的新编译的函数，以便在先前和新编译的函数之间提供强大的原子性。

6. 发明授权

US08521965B2 Hardware acceleration for a software transactional memory system 有权
标题翻译：软件交易内存系统的硬件加速
公开(公告)号：US08521965B2
公开(公告)日：2013-08-27
申请号：US12782518
申请日：2010-05-18
申请人： Bratin Saha , Ali-Reza Adl-Tabatabai , Quinn Jacobson
发明人： Bratin Saha , Ali-Reza Adl-Tabatabai , Quinn Jacobson
IPC分类号： G06F12/10
CPC分类号： G06F13/4243 , G06F9/3834 , G06F9/466 , G06F9/526
摘要： A method and apparatus for accelerating transactional execution. Barriers associated with shared memory lines referenced by memory accesses within a transaction are only invoked/executed the first time the shared memory lines are accessed within a transaction. Hardware support, such as a transaction field/transaction bits, are provided to determine if an access is the first access to a shared memory line during a pendancy of a transaction. Additionally, in an aggressive operational mode version numbers representing versions of elements stored in shared memory lines are not stored and validated upon commitment to save on validation costs. Moreover, even in a cautious mode, that stores version numbers to enable validation, validation costs may not be incurred, if eviction of accessed shared memory lines do not occur during execution of the transaction.
摘要翻译：一种用于加速事务执行的方法和装置。只有在事务中第一次访问共享内存条时，才会调用/执行与事务中的内存访问引用的共享内存条相关联的障碍。提供诸如事务字段/事务位之类的硬件支持来确定访问是否是在事务挂起期间对共享存储器行的第一次访问。另外，在积极的操作模式中，代表存储在共享存储器行中的元素的版本号的版本号在保存验证成本的承诺时不被存储和验证。而且，即使在谨慎的模式下，存储版本号以启用验证，如果在执行交易期间没有发生访问的共享内存条的驱逐，则可能不会产生验证成本。

7. 发明申请

US20120297152A1 HARDWARE ACCELERATION OF A WRITE-BUFFERING SOFTWARE TRANSACTIONAL MEMORY 审中-公开
标题翻译：写硬缓存软件的硬件加速
公开(公告)号：US20120297152A1
公开(公告)日：2012-11-22
申请号：US13471841
申请日：2012-08-01
申请人： Bratin Saha , Ali-Reza Adl-Tabatabai , Quinn Jacobson
发明人： Bratin Saha , Ali-Reza Adl-Tabatabai , Quinn Jacobson
IPC分类号： G06F12/00
CPC分类号： G06F9/3834 , G06F9/3851 , G06F9/3863 , G06F9/467 , G06F12/0842
摘要： A method and apparatus for accelerating a software transactional memory (STM) system is described herein. Annotation field are associated with lines of a transactional memory. An annotation field associated with a line of the transaction memory is initialized to a first value upon starting a transaction. In response to encountering a read operation in the transaction, then annotation field is checked. If the annotation field includes a first value, the read is serviced from the line of the transaction memory without having to search an additional write space. A second and third value in the annotation field potentially indicates whether a read operation missed the transactional memory or a tentative value is stored in a write space. Additionally, an additional bit in the annotation field, may be utilized to indicate whether previous read operations have been logged, allowing for subsequent redundant read logging to be reduced.
摘要翻译：本文描述了用于加速软件事务存储器（STM）系统的方法和装置。注释字段与事务存储器的行相关联。与事务存储器的行相关联的注释字段在启动事务时被初始化为第一个值。响应于在事务中遇到读取操作，则检查注释字段。如果注释字段包含第一个值，则读取将从事务存储器的行提供服务，而不必搜索额外的写入空间。注释字段中的第二和第三个值潜在地指示读操作是否错过事务存储器或暂存值是否存储在写空间中。此外，注释字段中的另外一个位可以用于指示是否已经记录先前的读取操作，从而允许减少随后的冗余读取记录。

8. 发明申请

US20120179875A1 USING EPHEMERAL STORES FOR FINE-GRAINED CONFLICT DETECTION IN A HARDWARE ACCELERATED STM 有权
标题翻译：在硬件加速STM中使用EPHEMERAL STORES进行细粒度冲突检测
公开(公告)号：US20120179875A1
公开(公告)日：2012-07-12
申请号：US13346987
申请日：2012-01-10
申请人： Bratin Saha , Ali-Reza Adl-Tabatabai , Gad Sheaffer , Quinn Jacobson
发明人： Bratin Saha , Ali-Reza Adl-Tabatabai , Gad Sheaffer , Quinn Jacobson
IPC分类号： G06F12/08 , G06F12/00
CPC分类号： G06F12/14 , G06F8/458 , G06F9/52 , G06F9/522 , G06F12/0802 , G06F12/1483
摘要： A method and apparatus for fine-grained filtering in a hardware accelerated software transactional memory system is herein described. A data object, which may have an arbitrary size, is associated with a filter word. The filter word is in a first default state when no access, such as a read, from the data object has occurred during a pendancy of a transaction. Upon encountering a first access, such as a first read, from the data object, access barrier operations including an ephemeral/private store operation to set the filter word to a second state are performed. Upon a subsequent/redundant access, such as a second read, the access barrier operations are elided to accelerate the subsequent access, based on the filter word being set to the second state to indicate a previous access occurred.
摘要翻译：这里描述了用于硬件加速软件事务存储器系统中的细粒度过滤的方法和装置。可以具有任意大小的数据对象与过滤字相关联。当在事务的挂起期间没有发生来自数据对象的访问（例如读取）时，过滤器字处于第一默认状态。在从数据对象遇到诸如第一次读取的第一次访问时，执行包括将过滤词设置为第二状态的临时/私人存储操作的访问障碍操作。在诸如第二次读取的后续/冗余访问之后，基于滤波器字被设置为第二状态来指示先前访问发生，访问屏障操作被消除以加速后续访问。

9. 发明申请

US20080270745A1 Hardware acceleration of a write-buffering software transactional memory 有权
标题翻译：写缓冲软件事务内存的硬件加速
公开(公告)号：US20080270745A1
公开(公告)日：2008-10-30
申请号：US11784859
申请日：2007-04-09
申请人： Bratin Saha , Ali-Reza Adl-Tabatabai , Quinn Jacobson
发明人： Bratin Saha , Ali-Reza Adl-Tabatabai , Quinn Jacobson
IPC分类号： G06F9/00
CPC分类号： G06F9/3834 , G06F9/3851 , G06F9/3863 , G06F9/467 , G06F12/0842
摘要： A method and apparatus for accelerating a software transactional memory (STM) system is described herein. Annotation field are associated with lines of a transactional memory. An annotation field associated with a line of the transaction memory is initialized to a first value upon starting a transaction. In response to encountering a read operation in the transaction, then annotation field is checked. If the annotation field includes a first value, the read is serviced from the line of the transaction memory without having to search an additional write space. A second and third value in the annotation field potentially indicates whether a read operation missed the transactional memory or a tentative value is stored in a write space. Additionally, an additional bit in the annotation field, may be utilized to indicate whether previous read operations have been logged, allowing for subsequent redundant read logging to be reduced.
摘要翻译：本文描述了用于加速软件事务存储器（STM）系统的方法和装置。注释字段与事务存储器的行相关联。与事务存储器的行相关联的注释字段在启动事务时被初始化为第一个值。响应于在事务中遇到读取操作，则检查注释字段。如果注释字段包含第一个值，则读取将从事务存储器的行提供服务，而不必搜索额外的写入空间。注释字段中的第二和第三个值潜在地指示读操作是否错过事务存储器或暂存值是否存储在写空间中。此外，注释字段中的另外一个位可以用于指示是否已经记录先前的读取操作，从而允许减少随后的冗余读取记录。

10. 发明授权

US08200909B2 Hardware acceleration of a write-buffering software transactional memory 有权
标题翻译：写缓冲软件事务内存的硬件加速
公开(公告)号：US08200909B2
公开(公告)日：2012-06-12
申请号：US13094370
申请日：2011-04-26
申请人： Bratin Saha , Ali-Reza Adl-Tabatabai , Quinn Jacobson
发明人： Bratin Saha , Ali-Reza Adl-Tabatabai , Quinn Jacobson
IPC分类号： G06F12/00
CPC分类号： G06F9/3834 , G06F9/3851 , G06F9/3863 , G06F9/467 , G06F12/0842
摘要： A method and apparatus for accelerating a software transactional memory (STM) system is described herein. Annotation field are associated with lines of a transactional memory. An annotation field associated with a line of the transaction memory is initialized to a first value upon starting a transaction. In response to encountering a read operation in the transaction, then annotation field is checked. If the annotation field includes a first value, the read is serviced from the line of the transaction memory without having to search an additional write space. A second and third value in the annotation field potentially indicates whether a read operation missed the transactional memory or a tentative value is stored in a write space. Additionally, an additional bit in the annotation field, may be utilized to indicate whether previous read operations have been logged, allowing for subsequent redundant read logging to be reduced.
摘要翻译：本文描述了用于加速软件事务存储器（STM）系统的方法和装置。注释字段与事务存储器的行相关联。与事务存储器的行相关联的注释字段在启动事务时被初始化为第一个值。响应于在事务中遇到读取操作，则检查注释字段。如果注释字段包含第一个值，则读取将从事务存储器的行提供服务，而不必搜索额外的写入空间。注释字段中的第二和第三个值潜在地指示读操作是否错过事务存储器或暂存值是否存储在写空间中。此外，注释字段中的另外一个位可以用于指示是否已经记录先前的读取操作，从而允许减少随后的冗余读取记录。

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