公开(公告)号：SG11201606090RA

公开(公告)日：2016-08-30

申请号：SG11201606090R

申请日：2015-03-20

Applicant: IBM

Inventor： HELLER LISA CRANTON ,  BUSABA FADI YUSUF ,  FARRELL MARK

IPC: G06F9/455 ,  G06F9/30 ,  G06F9/38 ,  G06F9/50

Abstract: According to one aspect, a computer system includes a configuration with a machine enabled to operate in a single thread (ST) mode and a multithreading (MT) mode. In addition, the machine includes physical threads. The machine is configured to perform a method that includes issuing a start-virtual-execution (start-VE) instruction to dispatch a guest entity having multiple logical threads on the core. The guest entity includes all or a part of a guest virtual machine (VM), and issuing is performed by a host running on one of the physical threads on the core in the ST mode. The executing of the start-VE instruction by the machine includes mapping each of the logical threads to a corresponding one of the physical threads, initializing each of the mapped physical threads with a state of the corresponding logical thread, and starting execution of the guest entity on the core in MT mode.

公开(公告)号：AU2015238517A1

公开(公告)日：2016-08-11

申请号：AU2015238517

申请日：2015-03-20

Applicant: IBM

Inventor： HELLER LISA CRANTON ,  BUSABA FADI YUSUF ,  FARRELL MARK

IPC: G06F9/455 ,  G06F9/30 ,  G06F9/38 ,  G06F9/50

Abstract: According to one aspect, a computer system includes a configuration with a machine enabled to operate in a single thread (ST) mode and a multithreading (MT) mode. In addition, the machine includes physical threads. The machine is configured to perform a method that includes issuing a start-virtual-execution (start- VE) instruction to dispatch a guest entity having multiple logical threads on the core. The guest entity includes all or a part of a guest virtual machine (VM), and issuing is performed by a host running on one of the physical threads on the core in the ST mode. The executing of the start- VE instruction by the machine includes mapping each of the logical threads to a corresponding one of the physical threads, initializing each of the mapped physical threads with a state of the corresponding logical thread, and starting execution of the guest entity on the core in MT mode.

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：CY1112463T1

公开(公告)日：2015-12-09

申请号：CY111100912

申请日：2011-09-21

Applicant: IBM

Inventor： GAINEY JR CHARLES ,  FARRELL MARK ,  KUBALA JEFFREY ,  SCHMIDT DONALD

IPC: G06F9/50 ,  G06F9/30 ,  G06F9/455

Abstract: Γιαέναλογικάδιαμερισματοποιημένοσύστημακεντρικού (host) υπολογιστήπουπεριλαμβάνειξένιουςεπεξεργαστές (host CPUs), μιαδιευκόλυνσηκαιοδηγίαγιατηνανακάλυψητοπολογίαςενόςή περισσότερωνφιλοξενούμενωνεπεξεργαστών (guest CPUs), μιαςφιλοξενούμενηςδιαμόρφωσης, συμπεριλαμβάνειένανφιλοξενούμενοεπεξεργαστήτηςφιλοξενούμενηςδιαμόρφωσηςο οποίοςανακαλείκαιεκτελείμιαεντολήΑΠΟΘΗΚΕΥΣΗΠΛΗΡΟΦΟΡΙΩΝΣΥΣΤΗΜΑΤΟΣ, ηοποίαλαμβάνειπληροφορίεςτοπολογίαςτηςδιαμόρφωσηςτουυπολογιστή. Ηπληροφορίατοπολογίαςσυμπεριλαμβάνειπληροφορίαένθεσηςτωνεπεξεργαστώντηςδιαμόρφωσηςκαιτοβαθμόαποκλειστικότηταςτονοποίοέναςξένιοςεπεξεργαστήςπαρέχειστοναντίστοιχοφιλοξενούμενοεπεξεργαστή. Ηπληροφορίακατάπροτίμησηαποθηκεύεταισεένανπίνακαστηνμνήμη.

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：CA2940923A1

公开(公告)日：2015-10-01

申请号：CA2940923

申请日：2015-03-20

Applicant: IBM

Inventor： HELLER LISA CRANTON ,  BUSABA FADI YUSUF ,  FARRELL MARK

IPC: G06F9/50 ,  G06F9/455

Abstract: According to one aspect, a computer system includes a configuration with a machine enabled to operate in a single thread (ST) mode and a multithreading (MT) mode. In addition, the machine includes physical threads. The machine is configured to perform a method that includes issuing a start-virtual-execution (start- VE) instruction to dispatch a guest entity having multiple logical threads on the core. The guest entity includes all or a part of a guest virtual machine (VM), and issuing is performed by a host running on one of the physical threads on the core in the ST mode. The executing of the start- VE instruction by the machine includes mapping each of the logical threads to a corresponding one of the physical threads, initializing each of the mapped physical threads with a state of the corresponding logical thread, and starting execution of the guest entity on the core in MT mode.

公开(公告)号：SG11201402076YA

公开(公告)日：2014-06-27

申请号：SG11201402076Y

申请日：2012-11-13

Applicant: IBM

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

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：AU2010355805B2

公开(公告)日：2014-05-22

申请号：AU2010355805

申请日：2010-11-08

Applicant: IBM

Inventor： GREINER DAN ,  GAINEY CHARLES ,  CRADDOCK DAVID ,  CONESKI ANTHONY ,  GLENDENING BETH ,  FARRELL MARK ,  GREGG THOMAS ,  NJOKU-CHARLES UGOCHUKWU

IPC: G06F13/28 ,  G06F13/38

Abstract: An adapter is enabled for use. The enabling includes assigning one or more address spaces to the adapter, based on a request. For each address space assigned to the adapter, a corresponding device table entry is assigned. When the adapter is no longer needed, it is disabled and the assigned device table entries become available.

公开(公告)号：AU2010355798B2

公开(公告)日：2014-05-15

申请号：AU2010355798

申请日：2010-11-08

Applicant: IBM

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

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

Abstract: One or more message signaled interruption requests from one or more input/output (I/O) adapters are converted to I/O adapter event notifications. Each I/O adapter event notification includes the setting of one or more specific indicators in system memory and an interruption request, the first of which results in a pending I/O adapter interruption request. While a request for an I/O adapter interruption is pending, subsequent message signaled interruption requests are converted to I/O adapter event notifications, but do not result in additional requests for I/O adapter interruptions.

公开(公告)号：AU2010355801B2

公开(公告)日：2014-04-24

申请号：AU2010355801

申请日：2010-11-08

Applicant: IBM

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

IPC: G06F9/312 ,  G06F13/38

Abstract: Communication with adapters of a computing environment is facilitated. Instructions are provided that explicitly target the adapters. Information provided in an instruction is used to steer the instruction to an appropriate location within the adapter.