公开(公告)号：AU2015238706A1

公开(公告)日：2016-08-04

申请号：AU2015238706

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：CA2940982A1

公开(公告)日：2015-10-01

申请号：CA2940982

申请日：2015-03-16

Applicant: IBM

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

IPC: G06F9/46 ,  G06F9/455

Abstract: A computer system includes a virtual machine (VM) configuration with one or more cores. Each core is enabled to operate in a single thread (ST) mode or a multithreading (MT) mode. The ST mode consists of a single thread and the MT mode consists of a plurality of threads on shared resources of a respective core. The computer system includes a core-oriented system control area (COSCA) having a common area representing all of the cores of the VM configuration and separate core description areas for each of the cores in the VM configuration. Each core description area indicates a location of one or more thread description areas each representing a thread within the respective core, and each thread description area indicates a location of a state description of the respective thread.

公开(公告)号：PT2430532E

公开(公告)日：2013-11-25

申请号：PT10775820

申请日：2010-11-08

Applicant: IBM

Inventor： GREINER DAN ,  OSISEK DAMIAN LEO ,  SLEGEL TIMOTHY ,  HELLER LISA

IPC: G06F9/455 ,  G06F9/30

公开(公告)号：SG186079A1

公开(公告)日：2013-01-30

申请号：SG2012087292

申请日：2010-11-08

Applicant: IBM

Inventor： GREINER DAN ,  OSISEK DAMIAN LEO ,  SLEGEL TIMOTHY ,  HELLER LISA

Abstract: In a processor supporting execution of a plurality of functions of an instruction, an instruction blocking value is set for blocking one or more of the plurality of functions, such that an attempt to execute one of the blocked functions, will result in a program exception and the instruction will not execute, however the same instruction will be able to execute any of the functions that are not blocked functions.

公开(公告)号：AU2010355865A1

公开(公告)日：2012-12-20

申请号：AU2010355865

申请日：2010-11-08

Applicant: IBM

Inventor： SITTMANN III GUSTAV ,  CRADDOCK DAVID ,  GREGG THOMAS ,  SCHMIDT DONALD WILLIAM ,  BELMAR BRENTON FRANCOIS ,  FARRELL MARK ,  OSISEK DAMIAN LEO ,  TARCZA RICHARD ,  EASTON JANET

IPC: G06F9/48

Abstract: The conditions under which adapter interruptions are made pending are controlled. Responsive to an interruption being presented to an operating system, subsequent interruptions are suppressed on all central processing units in the configuration. The operating system processes the interruption, including examining and processing indicators of reported events until the operating system discontinues the suppression. This enables the operating system to control the number of pending interruptions and the number of processors processing those interruptions.

公开(公告)号：MX383436B

公开(公告)日：2025-03-11

申请号：MX2016012529

申请日：2016-09-26

Applicant: IBM

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

IPC: G06F9/30 ,  G06F9/38 ,  G06F9/50

Abstract: Un sistema de computadora incluye una configuración con un núcleo configurable entre un modo de subprocesamiento individual (ST) y un modo de subprocesamiento múltiple (MT). El modo ST dirige un subproceso primario y el modo MT dirige el subproceso primario y uno o más subprocesos secundarios en recursos compartidos del núcleo. Se configura un servicio de subprocesamiento múltiple para controlar la utilización de la configuración para llevar a cabo un método que incluye acceder al subproceso primario en el modo ST utilizando un valor de dirección de núcleo y conmutar del modo ST al modo MT. Se accede al subproceso primario o uno del uno o más subprocesos secundarios en el modo MT utilizando un valor de dirección expandida, en donde el valor de dirección expandida incluye el valor de dirección de núcleo concatenado con un valor de dirección de subproceso.

公开(公告)号：CA2940905C

公开(公告)日：2022-08-16

申请号：CA2940905

申请日：2015-03-19

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 ,  JACOBI CHRISTIAN

IPC: G06F9/46 ,  G06F9/50

Abstract: Embodiments relate to dynamic enablement of multithreading. According to an aspect, a computer system includes a 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. The computer system also includes a multithreading facility configured to control the configuration to perform a method. The method includes executing in the primary thread in the ST mode, an MT mode setting instruction. A number of threads requested is obtained from a location specified by the MT mode setting instruction. Based on determining that the number of threads requested indicates multiple threads, the MT mode is enabled to execute the multiple threads including the primary thread and the one or more secondary threads.

公开(公告)号：SI2862080T1

公开(公告)日：2018-12-31

申请号：SI201331247

申请日：2013-06-12

Applicant: IBM

Inventor： GREINER DAN ,  JACOBI CHRISTIAN ,  SLEGEL TIMOTHY ,  OSISEK DAMIAN LEO

IPC: G06F13/00 ,  G06F9/00 ,  G06F11/00

公开(公告)号：AU2015238632B2

公开(公告)日：2018-04-26

申请号：AU2015238632

申请日：2015-03-19

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 ,  JACOBI CHRISTIAN

IPC: G06F9/50 ,  G06F9/38

Abstract: Embodiments relate to dynamic enablement of multithreading. According to an aspect, a computer system includes a 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. The computer system also includes a multithreading facility configured to control the configuration to perform a method. The method includes executing in the primary thread in the ST mode, an MT mode setting instruction. A number of threads requested is obtained from a location specified by the MT mode setting instruction. Based on determining that the number of threads requested indicates multiple threads, the MT mode is enabled to execute the multiple threads including the primary thread and the one or more secondary threads.

公开(公告)号：AU2015238662A8

公开(公告)日：2018-04-19

申请号：AU2015238662

申请日：2015-03-16

Applicant: IBM

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

IPC: G06F9/455 ,  G06F9/50

Abstract: A computer system includes a virtual machine (VM) configuration with one or more cores. Each core is enabled to operate in a single thread (ST) mode or a multithreading (MT) mode. The ST mode consists of a single thread and the MT mode consists of a plurality of threads on shared resources of a respective core. The computer system includes a core-oriented system control area (COSCA) having a common area representing all of the cores of the VM configuration and separate core description areas for each of the cores in the VM configuration. Each core description area indicates a location of one or more thread description areas each representing a thread within the respective core, and each thread description area indicates a location of a state description of the respective thread.