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1. 发明申请

US20130247069A1 Creating A Checkpoint Of A Parallel Application Executing In A Parallel Computer That Supports Computer Hardware Accelerated Barrier Operations 审中-公开
标题翻译：创建支持计算机硬件加速屏障操作的并行计算机中并行应用程序的检查点
公开(公告)号：US20130247069A1
公开(公告)日：2013-09-19
申请号：US13420676
申请日：2012-03-15
申请人： Wen Chen , Tsai-Yang Jea , William P. Lepera , Serban C. Maerean , Hung Q. Thai , Hanhong Xue , Zhi Zhang
发明人： Wen Chen , Tsai-Yang Jea , William P. Lepera , Serban C. Maerean , Hung Q. Thai , Hanhong Xue , Zhi Zhang
IPC分类号： G06F9/46
CPC分类号： G06F9/522 , G06F9/542 , G06F11/1402 , G06F11/1438
摘要： In a parallel computer executing a parallel application, where the parallel computer includes a number of compute nodes, with each compute node including one or more computer processors, the parallel application including a number of processes, and one or more of the processes executing a barrier operation, creating a checkpoint of a parallel application includes: maintaining, by each computer processor, global barrier operation state information, the global barrier operation state information includes an aggregation of each process's barrier operation state information; invoking, for each process of the parallel application, a checkpoint handler; saving, by each process's checkpoint handler as part of a checkpoint for the parallel application, the process's barrier operation state information; and exiting, by each process, the checkpoint handler.
摘要翻译：在执行并行应用的并行计算机中，其中并行计算机包括多个计算节点，每个计算节点包括一个或多个计算机处理器，并行应用程序包括多个进程，以及执行屏障的一个或多个进程创建并行应用的检查点的操作包括：由每个计算机处理器维护全局障碍操作状态信息，全局障碍操作状态信息包括每个进程的屏障操作状态信息的聚合; 对并行应用程序的每个进程调用一个检查点处理程序; 由每个进程的检查点处理程序作为并行应用程序的检查点的一部分保存进程的屏障操作状态信息; 并通过每个进程退出检查点处理程序。

2. 发明授权

US09092272B2 Preparing parallel tasks to use a synchronization register 有权
公开(公告)号：US09092272B2
公开(公告)日：2015-07-28
申请号：US13314477
申请日：2011-12-08
申请人： Tsai-Yang Jea , William P. LePera , Hanhong Xue , Zhi Zhang
发明人： Tsai-Yang Jea , William P. LePera , Hanhong Xue , Zhi Zhang
IPC分类号： G06F9/46 , G06F9/52
CPC分类号： G06F9/52 , G06F9/522
摘要： A job may be divided into multiple tasks that may execute in parallel on one or more compute nodes. The tasks executing on the same compute node may be coordinated using barrier synchronization. However, to perform barrier synchronization, the tasks use (or attach) to a barrier synchronization register which establishes a common checkpoint for each of the tasks. A leader task may use a shared memory region to publish to follower tasks the location of the barrier synchronization register—i.e., a barrier synchronization register ID. The follower tasks may then monitor the shared memory to determine the barrier synchronization register ID. The leader task may also use a count to ensure all the tasks attach to the BSR. This advantageously avoids any task-to-task communication which may reduce overhead and improve performance.

3. 发明申请

US20130152101A1 PREPARING PARALLEL TASKS TO USE A SYNCHRONIZATION REGISTER 有权
标题翻译：准备使用并发寄存器的并行任务
公开(公告)号：US20130152101A1
公开(公告)日：2013-06-13
申请号：US13314477
申请日：2011-12-08
申请人： Tsai-Yang Jea , William P. LePera , Hanhong Xue , Zhi Zhang
发明人： Tsai-Yang Jea , William P. LePera , Hanhong Xue , Zhi Zhang
IPC分类号： G06F9/50
CPC分类号： G06F9/52 , G06F9/522
摘要： A job may be divided into multiple tasks that may execute in parallel on one or more compute nodes. The tasks executing on the same compute node may be coordinated using barrier synchronization. However, to perform barrier synchronization, the tasks use (or attach) to a barrier synchronization register which establishes a common checkpoint for each of the tasks. A leader task may use a shared memory region to publish to follower tasks the location of the barrier synchronization register—i.e., a barrier synchronization register ID. The follower tasks may then monitor the shared memory to determine the barrier synchronization register ID. The leader task may also use a count to ensure all the tasks attach to the BSR. This advantageously avoids any task-to-task communication which may reduce overhead and improve performance.
摘要翻译：作业可以被划分为可以在一个或多个计算节点上并行执行的多个任务。可以使用屏障同步来协调在相同计算节点上执行的任务。然而，为了执行屏障同步，任务使用（或附加）到屏障同步寄存器，其为每个任务建立公共检查点。领导任务可以使用共享存储器区域向跟随者任务发布屏障同步寄存器的位置，即屏障同步寄存器ID。随后的任务可以监视共享存储器以确定屏障同步寄存器ID。领导任务还可以使用计数来确保所有任务附加到BSR。这有利地避免任何任务到任务的通信，这可以减少开销并提高性能。

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