公开(公告)号：SG11201606092XA

公开(公告)日：2016-08-30

申请号：SG11201606092X

申请日：2015-03-06

Applicant: IBM

Inventor： HELLER LISA CRANTON ,  KUBALA JEFFREY PAUL ,  BUSABA FADI YUSUF ,  BRADBURY JONATHAN DAVID ,  FARRELL MARK ,  OSISEK DAMIAN LEO ,  GREINER DAN ,  SLEGEL TIMOTHY ,  SCHMIDT DONALD WILLIAM ,  GAINEY CHARLES ,  JACOBI CHRISTIAN

IPC: G06F9/48 ,  G06F9/30 ,  G06F9/50

Abstract: Embodiments relate to multithreading in a computer. An aspect is a computer including a configuration having a core which includes physical threads and is operable in single thread (ST) and multithreading (MT) modes. The computer also includes a host program configured to execute in the ST mode on the core to issue a start-virtual-execution (start-VE) instruction to dispatch a guest entity which includes a guest virtual machine (VM). The start-VE instruction is executed by the core and includes obtaining a state description, having a guest state, from a location specified by the start-VE instruction. The execution includes determining, based on the guest state, whether the guest entity includes a single guest thread or multiple guest threads, and starting the guest threads in the MT mode or ST mode based on the guest state and a determination of whether the guest entity includes a single guest thread or multiple guest threads.

公开(公告)号：AU2015238663A1

公开(公告)日：2016-08-11

申请号：AU2015238663

申请日：2015-03-16

Applicant: IBM

Inventor： GREINER DAN ,  FARRELL MARK ,  OSISEK DAMIAN LEO ,  SCHMIDT DONALD WILLIAM ,  BUSABA FADI YUSUF ,  KUBALA JEFFREY PAUL ,  BRADBURY JONATHAN DAVID ,  HELLER LISA CRANTON ,  SLEGEL TIMOTHY ,  GAINEY JR CHARLES

IPC: G06F9/46

Abstract: THREAD CONTEXT RESTORATION IN A MULTITHREADING COMPUTER SYSTEM Amultithreading computer system includesa configuration with a core configurable between a single thread (ST) mode and a multithreading (MT) mode. The ST mode addresses a primary thread and the MT mode addresses the primary thread and one or more secondary threads on shared resources of the core. A multithreading facility is configured to control utilization of the configuration to perform a method including disabling one or more secondary threads based on switching from MT mode to ST mode. A thread context of secondary threads is made unavailable to programs. Based on a last-set program-specified maximum thread-id indicating MT, the thread context is obtained by a) executing a set MT instruction to resume the MT mode, and b) based on being in the resumed MT mode, accessing the thread context.

公开(公告)号：ZA201400731B

公开(公告)日：2015-10-28

申请号：ZA201400731

申请日：2014-01-30

Applicant: IBM

Inventor： ROGERS ROBERT ,  SCHMIDT DONALD WILLIAM ,  MULDER JAMES ,  PIERCE BERNARD ,  KUBALA JEFFREY PAUL ,  FARRELL MARK ,  GAINEY JR CHARLES

Abstract: A program (e.g., an operating system) is provided a warning that it has a grace period in which to perform a function, cleanup (e.g., complete, stop and/or move a dispatchable unit). The program is being warned, in one example, that it is losing access to its shared resources. For instance, in a virtual environment, a guest program is warned that it is about to lose its central processing unit resources, and therefore, it is to perform a function, such as cleanup.

公开(公告)号：CA2940988A1

公开(公告)日：2015-10-01

申请号：CA2940988

申请日：2015-03-16

Applicant: IBM

Inventor： GREINER DAN ,  FARRELL MARK ,  OSISEK DAMIAN LEO ,  SCHMIDT DONALD WILLIAM ,  BUSABA FADI YUSUF ,  KUBALA JEFFREY PAUL ,  BRADBURY JONATHAN DAVID ,  HELLER LISA CRANTON ,  SLEGEL TIMOTHY ,  GAINEY CHARLES JR

IPC: G06F9/46

Abstract: THREAD CONTEXT RESTORATION IN A MULTITHREADING COMPUTER SYSTEM Amultithreading computer system includesa configuration with a core configurable between a single thread (ST) mode and a multithreading (MT) mode. The ST mode addresses a primary thread and the MT mode addresses the primary thread and one or more secondary threads on shared resources of the core. A multithreading facility is configured to control utilization of the configuration to perform a method including disabling one or more secondary threads based on switching from MT mode to ST mode. A thread context of secondary threads is made unavailable to programs. Based on a last-set program-specified maximum thread-id indicating MT, the thread context is obtained by a) executing a set MT instruction to resume the MT mode, and b) based on being in the resumed MT mode, accessing the thread context.

公开(公告)号：CA2940891A1

公开(公告)日：2015-10-01

申请号：CA2940891

申请日：2015-03-06

Applicant: IBM

Inventor： HELLER LISA CRANTON ,  KUBALA JEFFREY PAUL ,  BUSABA FADI YUSUF ,  BRADBURY JONATHAN DAVID ,  FARRELL MARK ,  OSISEK DAMIAN LEO ,  GREINER DAN ,  SLEGEL TIMOTHY ,  SCHMIDT DONALD WILLIAM ,  GAINEY CHARLES ,  JACOBI CHRISTIAN

IPC: G06F9/50 ,  G06F9/455 ,  G06F9/48

Abstract: Embodiments relate to multithreading in a computer. An aspect is a computer including a configuration having a core which includes physical threads and is operable in single thread (ST) and multithreading (MT) modes. The computer also includes a host program configured to execute in the ST mode on the core to issue a start-virtual-execution (start-VE) instruction to dispatch a guest entity which includes a guest virtual machine (VM). The start-VE instruction is executed by the core and includes obtaining a state description, having a guest state, from a location specified by the start-VE instruction. The execution includes determining, based on the guest state, whether the guest entity includes a single guest thread or multiple guest threads, and starting the guest threads in the MT mode or ST mode based on the guest state and a determination of whether the guest entity includes a single guest thread or multiple guest threads.

公开(公告)号：IN4835CHN2014A

公开(公告)日：2015-09-18

申请号：IN4835CHN2014

申请日：2014-06-25

Applicant: IBM

Inventor： GAINEY JR CHARLES ,  MULDER JAMES ,  FARRELL MARK ,  BERNARD PIERCE ,  SCHMIDT DONALD WILLIAM ,  KUBALA JEFFREY PAUL ,  ROGERS ROBERT

IPC: G06F9/46

Abstract: A program (e.g. an operating system) is provided a warning that it has a grace period in which to perform a function such as cleanup (e.g. complete stop and/or move a dispatchable unit). The program is being warned in one example that it is losing access to its shared resources. For instance in a virtual environment a guest program is warned that it is about to lose its central processing unit resources and therefore it is to perform a function such as cleanup.

公开(公告)号：PL2430523T3

公开(公告)日：2015-05-29

申请号：PL10775818

申请日：2010-11-08

Applicant: IBM

Inventor： GREINER DAN ,  CRADDOCK DAVID ,  GREGG THOMAS ,  FARRELL MARK

IPC: G06F9/312

公开(公告)号：DK2430558T3

公开(公告)日：2015-04-27

申请号：DK10781635

申请日：2010-11-08

Applicant: IBM

Inventor： CRADDOCK DAVID ,  GREGG THOMAS ,  FARRELL MARK ,  EASTON JANET ,  SITTMANN III GUSTAV ,  LAIS ERIC NORMAN

IPC: G06F13/38 ,  G06F9/48 ,  G06F13/24

公开(公告)号：PL2430524T3

公开(公告)日：2015-02-27

申请号：PL10776345

申请日：2010-11-08

Applicant: IBM

Inventor： GREINER DAN ,  CRADDOCK DAVID ,  GREGG THOMAS ,  FARRELL MARK

IPC: G06F9/312 ,  G06F13/38

公开(公告)号：ES2523878T3

公开(公告)日：2014-12-02

申请号：ES10776345

申请日：2010-11-08

Applicant: IBM

Inventor： GREINER DAN ,  CRADDOCK DAVID ,  GREGG THOMAS ,  FARRELL MARK

IPC: G06F9/312 ,  G06F13/38

Abstract: Un procedimiento para ejecutar dentro de un circuito de procesamiento, que comprende un medio de almacenamiento legible por ordenador, legible por dicho circuito de procesamiento e instrucciones de almacenamiento para su ejecución por dicho circuito de procesamiento, una instrucción de almacenamiento que comprende un campo de código de operación que identifica una instrucción de almacenamiento en adaptador, un primer campo que identifica una primera ubicación que incluye los datos a ser almacenados en un adaptador, un segundo campo que identifica una segunda ubicación, cuyos contenidos incluyen un descriptor de función que identifica el adaptador, un designación de un espacio de direcciones dentro del adaptador en el que deben almacenarse los datos, y un desplazamiento dentro del espacio de direcciones, para almacenar datos en un adaptador, en el que el procedimiento comprende las etapas de: obtener una instrucción máquina a ser ejecutada, en el que la instrucción máquina está definida para su ejecución por un ordenador según una arquitectura de ordenador; y ejecutar la instrucción máquina, en el que la ejecución comprende: usar el descriptor de función para obtener una entrada de la tabla de funciones asociada con el adaptador; obtener una dirección de datos del adaptador usando al menos uno de entre la información en la entrada de la tabla de funciones y el desplazamiento; y almacenar los datos desde la primera ubicación en una ubicación específica en el espacio de direcciones identificado por la designación del espacio de direcciones, en el que la ubicación específica es identificada por la dirección de datos del adaptador.