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    • 6. 发明授权
    • Testing soft error rate of an application program
    • 测试应用程序的软错误率
    • US08296739B2
    • 2012-10-23
    • US12059897
    • 2008-03-31
    • Ronald Nick KallaJeffrey William KellingtonNaoko Pia SandaTodd Alan Venton
    • Ronald Nick KallaJeffrey William KellingtonNaoko Pia SandaTodd Alan Venton
    • G06F9/44
    • G06F11/3668
    • Techniques are provided for determining consequences of an injected fault on a system running a given application program or operating system, in order to measure the software impact of a hardware soft error on the application program/operating system. The application program software is emulated instruction-by-instruction, where source operands are randomly modified before an instruction is executed, and destination operands are randomly modified after an instruction is executed, in order to mimic hardware soft errors. In addition, a program counter is randomly modified after execution of a branch instruction. The resulting consequences of such modifications are monitored such that a fault of an instruction being executed is modeled in order to determine a soft error rate (SER) for a software application program or operating system.
    • 提供了用于确定注入的故障对运行给定应用程序或操作系统的系统的后果的技术,以便测量硬件软错误对应用程序/操作系统的软件影响。 应用程序软件被仿真逐个指令,其中在执行指令之前对源操作数进行随机修改,并且在执行指令之后随机修改目的地操作数,以模拟硬件软错误。 此外,在执行分支指令之后,程序计数器被随机地修改。 监视这种修改产生的后果,以便对所执行的指令的故障进行建模,以确定软件应用程序或操作系统的软错误率(SER)。
    • 8. 发明申请
    • INFORMATION HANDLING SYSTEM INCLUDING A PROCESSOR WITH A BIFURCATED ISSUE QUEUE
    • 信息处理系统,其中包括一个处理器与分歧问题队列
    • US20100161942A1
    • 2010-06-24
    • US12342045
    • 2008-12-22
    • James Wilson BishopMary Douglass BrownWilliam Elton BurkyTodd Alan Venton
    • James Wilson BishopMary Douglass BrownWilliam Elton BurkyTodd Alan Venton
    • G06F9/30
    • G06F9/30043G06F9/3838
    • An information handling system includes a processor with a bifurcated unified issue queue that may perform unified issue queue VSU store instruction dependency operations. The bifurcated unified issue queue BUIQ maintains VSU store instructions in the form of internal operations data. The BUIQ includes a unified issue queue UIQ 0 and a unified issue queue UIQ 1. The BUIQ may manage a particular VSU store instruction from one UIQ to determine data dependencies and employ the other UIQ to determine address dependencies of that particular VSU store instruction. The UIQs employ a dependency matrix including a dependency array. The dependency array data maintains both data and address dependency information. The particular VSU store instruction issues to execution units such as VSUs for data dependency information and load store units (LSUs) for address dependency information. A particular VSU store instruction may execute to provide data dependency information independent of address dependency information.
    • 信息处理系统包括具有分叉的统一发布队列的处理器,其可以执行统一的发布队列VSU存储指令依赖性操作。 分叉统一问题队列BUIQ以内部操作数据的形式维护VSU存储指令。 BUIQ包括统一的问题队列UIQ 0和统一的问题队列UIQ 1. BUIQ可以管理来自一个UIQ的特定VSU存储指令以确定数据依赖性并且使用另一个UIQ来确定该特定VSU存储指令的地址依赖性。 UIQ采用包括依赖性数组的依赖矩阵。 依赖性阵列数据维护数据和地址相关性信息。 特定的VSU存储指令发送到执行单元,例如用于数据依赖性信息的VSU和用于地址依赖性信息的加载存储单元(LSU)。 可以执行特定的VSU存储指令以提供独立于地址依赖性信息的数据依赖性信息。