公开(公告)号：US10129329B2

公开(公告)日：2018-11-13

申请号：US14881157

申请日：2015-10-13

Applicant: Cray Inc.

Inventor： Edwin L. Froese ,  Eric P. Lundberg ,  Igor Gorodetsky ,  Howard Pritchard ,  Charles Giefer ,  Robert L. Alverson ,  Duncan Roweth

IPC: G06F15/167 ,  H04L29/08 ,  G06F8/41 ,  G06F9/52 ,  G06F9/54 ,  H04L12/26 ,  H04L12/751 ,  H04L12/715

Abstract: An improved method for the prevention of deadlock in a massively parallel processor (MPP) system wherein, prior to a process sending messages to another process running on a remote processor, the process allocates space in a deadlock-avoidance FIFO. The allocated space provides a “landing zone” for requests that the software process (the application software) will subsequently issue using a remote-memory-access function. In some embodiments, the deadlock-avoidance (DLA) function provides two different deadlock-avoidance schemes: controlled discard and persistent reservation. In some embodiments, the software process determines which scheme will be used at the time the space is allocated.

公开(公告)号：US09160607B1

公开(公告)日：2015-10-13

申请号：US13798074

申请日：2013-03-12

Applicant: Cray Inc.

Inventor： Edwin L. Froese ,  Eric P. Lundberg ,  Igor Gorodetsky ,  Howard Pritchard ,  Charles Giefer ,  Robert L. Alverson ,  Duncan Roweth

IPC: G06F15/167 ,  H04L29/08 ,  G06F9/45 ,  G06F9/52 ,  G06F9/54 ,  G06F15/00 ,  G06F9/46

CPC classification number: H04L67/10 ,  G06F8/458 ,  G06F9/52 ,  G06F9/524 ,  G06F9/54 ,  G06F15/167 ,  H04L12/2602 ,  H04L43/00 ,  H04L43/02 ,  H04L45/02 ,  H04L45/04 ,  H04L67/2842

Abstract: An improved method for the prevention of deadlock in a massively parallel processor (MPP) system wherein, prior to a process sending messages to another process running on a remote processor, the process allocates space in a deadlock-avoidance FIFO. The allocated space provides a “landing zone” for requests that the software process (the application software) will subsequently issue using a remote-memory-access function. In some embodiments, the deadlock-avoidance (DLA) function provides two different deadlock-avoidance schemes: controlled discard and persistent reservation. In some embodiments, the software process determines which scheme will be used at the time the space is allocated.

Abstract translation: 一种用于在大规模并行处理器（MPP）系统中防止死锁的改进方法，其中在将消息发送到在远程处理器上运行的另一进程之前，该进程在死锁避免FIFO中分配空间。 分配的空间为软件进程（应用软件）随后将使用远程存储器访问功能发出的请求提供“着陆区域”。 在一些实施例中，死锁避免（DLA）功能提供两种不同的死锁避免方案：受控丢弃和永久保留。 在一些实施例中，软件过程确定在分配空间时将使用哪种方案。

公开(公告)号：US20160077997A1

公开(公告)日：2016-03-17

申请号：US14881157

申请日：2015-10-13

Applicant: Cray Inc.

Inventor： Edwin L. Froese ,  Eric P. Lundberg ,  Igor Gorodetsky ,  Howard Pritchard ,  Charles Giefer ,  Robert L. Alverson ,  Duncan Roweth

IPC: G06F15/167 ,  H04L29/08

CPC classification number: H04L67/10 ,  G06F8/458 ,  G06F9/52 ,  G06F9/524 ,  G06F9/54 ,  G06F15/167 ,  H04L43/00 ,  H04L43/02 ,  H04L45/02 ,  H04L45/04 ,  H04L67/2842

Abstract: An improved method for the prevention of deadlock in a massively parallel processor (MPP) system wherein, prior to a process sending messages to another process running on a remote processor, the process allocates space in a deadlock-avoidance FIFO. The allocated space provides a “landing zone” for requests that the software process (the application software) will subsequently issue using a remote-memory-access function. In some embodiments, the deadlock-avoidance (DLA) function provides two different deadlock-avoidance schemes: controlled discard and persistent reservation. In some embodiments, the software process determines which scheme will be used at the time the space is allocated.

Abstract translation: 一种用于在大规模并行处理器（MPP）系统中防止死锁的改进方法，其中在将消息发送到在远程处理器上运行的另一进程之前，该进程在死锁避免FIFO中分配空间。 分配的空间为软件进程（应用软件）随后将使用远程存储器访问功能发出的请求提供“着陆区域”。 在一些实施例中，死锁避免（DLA）功能提供两种不同的死锁避免方案：受控丢弃和永久保留。 在一些实施例中，软件过程确定在分配空间时将使用哪种方案。