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31. 发明申请

US20120227048A1 FRAMEWORK FOR SCHEDULING MULTICORE PROCESSORS 审中-公开
标题翻译：调度多处理器的框架
公开(公告)号：US20120227048A1
公开(公告)日：2012-09-06
申请号：US13413768
申请日：2012-03-07
申请人： Elmootazbellah Nabil Elnozahy , Heather Lynn Hanson , James Lyle Peterson , Freeman Leigh Rawson, III , Malcolm Scott Ware
发明人： Elmootazbellah Nabil Elnozahy , Heather Lynn Hanson , James Lyle Peterson , Freeman Leigh Rawson, III , Malcolm Scott Ware
IPC分类号： G06F9/46
CPC分类号： G06F9/4893 , G06F9/4881 , G06F9/5027 , G06F9/54 , Y02D10/22 , Y02D10/24
摘要： A method for a framework for scheduling tasks in a multi-core processor or multiprocessor system is provided in the illustrative embodiments. A thread is selected according to an order in a scheduling discipline, the thread being a thread of an application executing in the data processing system, the thread forming the leader thread in a bundle of threads. A value of a core attribute in a set of core attributes is determined according to a corresponding thread attribute in a set of thread attributes associated with the leader thread. A determination is made whether a second thread can be added to the bundle such that the bundle including the second thread will satisfy a policy. If the determining is affirmative, the second thread is added to the bundle. The bundle is scheduled for execution using a core of the multi-core processor.
摘要翻译：在说明性实施例中提供了用于在多核处理器或多处理器系统中调度任务的框架的方法。根据调度规则中的顺序选择线程，该线程是在数据处理系统中执行的应用程序的线程，线程形成一束线程中的引导线程。一组核心属性中的核心属性的值根据与引导线程相关联的一组线程属性中的相应线程属性来确定。确定是否可以将第二线程添加到捆绑包，使得包括第二线程的包将满足策略。如果确定是肯定的，则将第二个线程添加到捆绑包中。该捆绑计划使用多核处理器的核心进行执行。

32. 发明申请

US20120223764A1 ON-CHIP CONTROL OF THERMAL CYCLING 审中-公开
标题翻译：热循环的片上控制
公开(公告)号：US20120223764A1
公开(公告)日：2012-09-06
申请号：US13040094
申请日：2011-03-03
申请人： Malcolm Scott Allen-Ware , John Bruce Carter , Elmootazbellah Nabil Elnozahy , Wei Huang
发明人： Malcolm Scott Allen-Ware , John Bruce Carter , Elmootazbellah Nabil Elnozahy , Wei Huang
IPC分类号： H03K3/36
CPC分类号： H01L23/34 , H01L2924/0002 , H01L2924/00
摘要： A method, system, and computer program product for on-chip control of thermal cycling in an integrated circuit (IC) are provided in the illustrative embodiments. A first circuit is configured on the IC for adjusting a first voltage being applied to a first part of the IC. A first temperature of the first part is measured at a first time. A determination is made that the first temperature is outside a temperature range defined by an upper temperature threshold and a lower temperature threshold. The first voltage is adjusted by reducing the first voltage when the first temperature exceeds the upper temperature threshold and by increasing the first voltage when the first temperature is below the lower temperature threshold, thereby causing the first temperature of the first part to attain a value within the temperature range.
摘要翻译：在说明性实施例中提供了用于集成电路（IC）中的热循环的片上控制的方法，系统和计算机程序产品。在IC上配置第一电路，用于调整施加到IC的第一部分的第一电压。在第一时间测量第一部分的第一温度。确定第一温度在由较高温度阈值和较低温度阈值所限定的温度范围之外。当第一温度超过上限温度阈值时，通过降低第一电压并且当第一温度低于低温阈值时增加第一电压，从而使第一部分的第一温度达到第一电压值温度范围。

33. 发明授权

US07934061B2 Methods and arrangements to manage on-chip memory to reduce memory latency 有权
标题翻译：管理片上存储器以减少内存延迟的方法和安排
公开(公告)号：US07934061B2
公开(公告)日：2011-04-26
申请号：US12145034
申请日：2008-06-24
申请人： Dilma Menezes da Silva , Elmootazbellah Nabil Elnozahy , Orran Yaakov Krieger , Hazim Shafi , Xiaowei Shen , Balaram Sinharoy , Robert Brett Tremaine
发明人： Dilma Menezes da Silva , Elmootazbellah Nabil Elnozahy , Orran Yaakov Krieger , Hazim Shafi , Xiaowei Shen , Balaram Sinharoy , Robert Brett Tremaine
IPC分类号： G06F12/00 , G06F13/00 , G06F3/00
CPC分类号： G06F12/08 , G06F12/0893 , G06F2212/251 , G06F2212/253
摘要： Methods, systems, and media for reducing memory latency seen by processors by providing a measure of control over on-chip memory (OCM) management to software applications, implicitly and/or explicitly, via an operating system are contemplated. Many embodiments allow part of the OCM to be managed by software applications via an application program interface (API), and part managed by hardware. Thus, the software applications can provide guidance regarding address ranges to maintain close to the processor to reduce unnecessary latencies typically encountered when dependent upon cache controller policies. Several embodiments utilize a memory internal to the processor or on a processor node so the memory block used for this technique is referred to as OCM.
摘要翻译：考虑通过操作系统提供对软件应用（OCM）的控制的措施来减少处理器所看到的存储器延迟的方法，系统和媒体。许多实施例允许OCM的一部分由软件应用程序通过应用程序接口（API）和由硬件管理的部分来管理。因此，软件应用程序可以提供关于地址范围的指导，以保持靠近处理器，以减少在依赖于缓存控制器策略时通常遇到的不必要的延迟。几个实施例利用处理器内部或处理器节点上的存储器，因此用于该技术的存储器块被称为OCM。

34. 发明申请

US20080270726A1 Apparatus and Method for Providing Remote Access Redirect Capability in a Channel Adapter of a System Area Network 有权
标题翻译：在系统区域网络的信道适配器中提供远程访问重定向能力的装置和方法
公开(公告)号：US20080270726A1
公开(公告)日：2008-10-30
申请号：US12174746
申请日：2008-07-17
申请人： Elmootazbellah Nabil Elnozahy , Peter Anthony Walker
发明人： Elmootazbellah Nabil Elnozahy , Peter Anthony Walker
IPC分类号： G06F12/02
CPC分类号： H04L49/351 , G06F3/0601 , G06F2003/0692 , H04L49/25 , H04L49/3009 , H04L49/358 , H04L67/1097
摘要： A method and apparatus for providing remote access redirect in a host channel adapter of a system area network are provided. The apparatus and method provide a mechanism by which a host channel adapter, in response to receiving a marker message, places selected channel(s) of the host channel adapter in a remote access redirect (RAR) mode of operation. During the RAR mode of operation, memory access messages received by the host channel adapter that are destined for portions of an application memory space marked as being protected are converted to RAR receive messages and redirected to a queue pair associated with an operating system rather than the queue pair for the application. The operating system is responsible for serializing access to application memory pages outside of the host channel adapter. The mechanisms of the present invention may be used to perform a checkpoint data integrity operation.
摘要翻译：提供了一种用于在系统区域网络的主机信道适配器中提供远程访问重定向的方法和装置。该装置和方法提供了一种机制，主机信道适配器响应于接收到标记消息，将主机信道适配器的选定信道放置在远程接入重定向（RAR）操作模式中。在RAR操作模式期间，由主机信道适配器接收的目的地为标记为受保护的应用存储器空间的部分的存储器访问消息被转换为RAR接收消息，并被重定向到与操作系统相关联的队列对，而不是应用程序的队列对。操作系统负责对主机通道适配器之外的应用程序内存页进行序列化访问。本发明的机制可以用于执行检查点数据完整性操作。

35. 发明授权

US6014686A Apparatus and methods for highly available directory services in the distributed computing environment 失效
标题翻译：在分布式计算环境中高可用性目录服务的设备和方法
公开(公告)号：US6014686A
公开(公告)日：2000-01-11
申请号：US880094
申请日：1997-06-20
申请人： Elmootazbellah Nabil Elnozahy , Vivek Ratan , Mark Edward Segal
发明人： Elmootazbellah Nabil Elnozahy , Vivek Ratan , Mark Edward Segal
IPC分类号： G06F9/46 , G06F11/00 , G06F11/20 , G06F11/30 , G06F15/16
CPC分类号： G06F11/2041 , G06F11/1482 , G06F11/2071 , G06F11/2097 , G06F9/465 , G06F9/547 , G06F11/2028
摘要： In the Distributed Computing Environment (DCE) standard, availability of directory services is increased by apparatus and methods using agents inserted between requesting clients and servers. By using agents, additional functions are carried out which are not performed in a typical DCE environment. Each agent inserts itself between the requesters and servers by writing over the pointer to the server with information pointing to the agent, thus redirecting requests to themselves. The agent then receives incoming requests and forwards them on to its associated server and other agents. The agent handling requests for the master server is called the "master" agent and the agents handling requests for replica servers are "replica" agents. The agents make sure requests are performed before replying to the original requester. Agents also monitor themselves. If a master agent crashes, the remaining agents elect a new master agent. If a replica agent crashes the master agent excludes the agent from further communications. The apparatus and methods provide a highly available and robust directory server.
摘要翻译：在分布式计算环境（DCE）标准中，使用插入请求的客户端和服务器之间的代理的设备和方法来增加目录服务的可用性。通过使用代理，执行在典型的DCE环境中不执行的附加功能。每个代理程序通过将指向代理的信息写入服务器的指针，将自身插入请求者和服务器之间，从而将请求重定向到自己。然后，代理接收传入的请求并将其转发到其关联的服务器和其他代理。处理对主服务器的请求的代理称为“主”代理，处理对副本服务器的请求的代理是“副本”代理。代理人在回复原始请求者之前确保执行请求。代理商也监控自己。如果主代理程序崩溃，其余代理将选择一个新的主代理程序。如果副本代理程序崩溃，则主代理程序将不再进一步通信。该设备和方法提供了高可用性和强大的目录服务器。

36. 发明授权

US08381028B2 Accelerating recovery in MPI environments 失效
标题翻译：加速MPI环境的恢复
公开(公告)号：US08381028B2
公开(公告)日：2013-02-19
申请号：US13447917
申请日：2012-04-16
申请人： Elmootazbellah Nabil Elnozahy
发明人： Elmootazbellah Nabil Elnozahy
IPC分类号： G06F11/00
CPC分类号： G06F11/1438 , G06F11/1471 , G06F11/1482 , G06F11/202
摘要： A computer usable program product for accelerating recovery in an MPI environment is provided in the illustrative embodiments. A first portion of a distributed application executes using a first processor and a second portion using a second processor in a distributed computing environment. After a failure of operation of the first portion, the first portion is restored to a checkpoint. A first part of the first portion is distributed to a third processor and a second part to a fourth processor. A computation of the first portion is performed using the first and the second parts in parallel. A first message is computed in the first portion and sent to the second portion, the message having been initially computed after a time of the checkpoint. A second message is replayed from the second portion without computing the second message in the second portion.
摘要翻译：在说明性实施例中提供了用于在MPI环境中加速恢复的计算机可用程序产品。在分布式计算环境中，使用第一处理器和第二部分使用第二处理器执行分布式应用的第一部分。在第一部分的操作失败之后，第一部分被恢复到检查点。第一部分的第一部分被分配到第三处理器和第二部分到第四处理器。使用第一部分和第二部分并行地执行第一部分的计算。在第一部分中计算第一消息并将其发送到第二部分，该消息已经在检查点的时间之后被初始地计算。从第二部分重播第二个消息，而不计算第二部分中的第二个消息。

37. 发明授权

US08312224B2 Recovery in shared memory environment 失效
标题翻译：在共享内存环境中恢复
公开(公告)号：US08312224B2
公开(公告)日：2012-11-13
申请号：US12788944
申请日：2010-05-27
申请人： Elmootazbellah Nabil Elnozahy
发明人： Elmootazbellah Nabil Elnozahy
IPC分类号： G06F12/00
CPC分类号： G06F11/1461 , G06F11/1456 , G06F2201/82 , G06F2201/84
摘要： A system, and computer usable program product for recovery in a shared memory environment are provided in the illustrative embodiments. A core in a multi-core processor is designated as a user level core (ULC), which executes an instruction to modify a memory while executing an application. A second core is designated as a operating system core (OSC), which manages checkpointing of several segments of the shared memory. A set of flags is accessible to a memory controller to manage a shared memory. A flag in the set of flags corresponds to one segment in the segments of the shared memory. A message or instruction for modification of a segment is received. A cache line tracking determination is made whether a cache line used for the modification has already been used for a similar modification. If not, a part of the segment is checkpointed. The modification proceeds after checkpointing.
摘要翻译：在说明性实施例中提供了用于在共享存储器环境中恢复的系统和计算机可用程序产品。多核处理器中的核心被指定为用户级核心（ULC），其在执行应用时执行修改存储器的指令。第二核心被指定为操作系统核心（OSC），其管理共享存储器的几个段的检查点。内存控制器可以访问一组标志来管理共享内存。该组标志中的标志对应于共享存储器的段中的一个段。接收到用于修改段的消息或指令。进行高速缓存行跟踪确定用于修改的高速缓存行是否已经被用于类似的修改。如果没有，该段的一部分将被检查点。检查点后进行修改。

38. 发明授权

US08271831B2 Tolerating soft errors by selective duplication 失效
标题翻译：通过选择性复制容忍软错误
公开(公告)号：US08271831B2
公开(公告)日：2012-09-18
申请号：US12788968
申请日：2010-05-27
申请人： Elmootazbellah Nabil Elnozahy , Mark William Stephenson
发明人： Elmootazbellah Nabil Elnozahy , Mark William Stephenson
IPC分类号： G06F11/00
CPC分类号： G06F11/1497 , G06F11/1479
摘要： A method, system, and computer usable program product for tolerating soft errors by selective duplication are provided in the illustrative embodiments. An application executing in a data processing system, selects an instruction that has to be protected from soft errors. The instruction is marked for duplication such that the instruction is duplicated during execution of the instruction. The marked instruction is sent for execution to a hardware front end.
摘要翻译：在说明性实施例中提供了通过选择性复制来容忍软错误的方法，系统和计算机可用程序产品。在数据处理系统中执行的应用程序，选择必须被保护的指令免于软错误。该指令被标记为复制，使得指令在执行指令期间被复制。标记的指令被发送到硬件前端执行。

39. 发明授权

US07953854B2 Apparatus and method for providing remote access redirect capability in a channel adapter of a system area network 有权
标题翻译：用于在系统区域网络的信道适配器中提供远程访问重定向能力的装置和方法
公开(公告)号：US07953854B2
公开(公告)日：2011-05-31
申请号：US12174746
申请日：2008-07-17
申请人： Elmootazbellah Nabil Elnozahy , Peter Anthony Walker
发明人： Elmootazbellah Nabil Elnozahy , Peter Anthony Walker
IPC分类号： G06F15/173
CPC分类号： H04L49/351 , G06F3/0601 , G06F2003/0692 , H04L49/25 , H04L49/3009 , H04L49/358 , H04L67/1097
摘要： A method and apparatus for providing remote access redirect in a host channel adapter of a system area network are provided. The apparatus and method provide a mechanism by which a host channel adapter, in response to receiving a marker message, places selected channel(s) of the host channel adapter in a remote access redirect (RAR) mode of operation. During the RAR mode of operation, memory access messages received by the host channel adapter that are destined for portions of an application memory space marked as being protected are converted to RAR receive messages and redirected to a queue pair associated with an operating system rather than the queue pair for the application. The operating system is responsible for serializing access to application memory pages outside of the host channel adapter. The mechanisms of the present invention may be used to perform a checkpoint data integrity operation.
摘要翻译：提供了一种用于在系统区域网络的主机信道适配器中提供远程访问重定向的方法和装置。该装置和方法提供了一种机制，主机信道适配器响应于接收到标记消息，将主机信道适配器的选定信道放置在远程接入重定向（RAR）操作模式中。在RAR操作模式期间，由主机信道适配器接收的目的地为标记为受保护的应用存储器空间的部分的存储器访问消息被转换为RAR接收消息，并被重定向到与操作系统相关联的队列对，而不是应用程序的队列对。操作系统负责对主机通道适配器之外的应用程序内存页进行序列化访问。本发明的机制可以用于执行检查点数据完整性操作。

40. 发明授权

US06988125B2 Servicing client requests in a network attached storage (NAS)-based network including replicating a client-server protocol in a packet generated by the NAS device 有权
标题翻译：在基于网络连接存储（NAS）的网络中维护客户端请求，包括在NAS设备生成的数据包中复制客户端 - 服务器协议
公开(公告)号：US06988125B2
公开(公告)日：2006-01-17
申请号：US09915435
申请日：2001-07-26
申请人： Elmootazbellah Nabil Elnozahy , Michael David Kistler
发明人： Elmootazbellah Nabil Elnozahy , Michael David Kistler
IPC分类号： G06F13/00
CPC分类号： G06F17/30197 , G06F17/30106 , H04L29/06 , H04L67/1002 , H04L67/1097 , H04L67/2814 , H04L67/2852 , H04L69/329 , H04L2029/06054
摘要： A method and system for responding to a client request for information from a service device in a data processing network. Initially, the server receives the information request from the client and determines that the requested information is not in the server's cache. The server then generates a storage request and sends the storage request to a network attached storage device. The storage device retrieves the requested information and generates a set of packets containing the requested information. The storage device then sending the generated packets simultaneously to the client to satisfy the client request and to the server to refresh the server cache. The storage request may include protocol information corresponding to the client-server connection that the storage device uses to replicate the client-server protocol stack in the generated packet. Sending the generated packet may comprise including a multicast address in the packet.
摘要翻译：一种用于响应来自数据处理网络中的服务设备的客户端请求信息的方法和系统。最初，服务器从客户端接收信息请求，并确定所请求的信息不在服务器的缓存中。然后，服务器生成存储请求，并将存储请求发送到网络连接的存储设备。存储设备检索所请求的信息并生成包含所请求信息的一组分组。然后，存储设备同时向客户端发送生成的包，以满足客户端请求，并向服务器刷新服务器缓存。存储请求可以包括对应于存储设备用于在生成的分组中复制客户机 - 服务器协议栈的客户端 - 服务器连接的协议信息。发送生成的分组可以包括在分组中包括多播地址。

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