Abstract:
PROBLEM TO BE SOLVED: To provide a method, apparatus, system that enables effective communication between instruction set architecture-based sequencers having heterogeneous resources.SOLUTION: The method comprises: directly communicating a request from a user-level application to an accelerator coupled to a first instruction sequencer via the first instruction sequencer, where the accelerator comprises a heterogeneous resource with respect to the first instruction sequencer; providing the request to the accelerator via an exo-skeleton associated with the accelerator; and performing a first function in the accelerator in response to the request in parallel with a second function in the first instruction sequencer.
Abstract:
PROBLEM TO BE SOLVED: To provide a method, apparatus and system for scheduling OS-independent 'shreds' without intervention of an operating system. SOLUTION: For at least in one embodiment, the shred is scheduled for execution by a scheduler routine rather than the operating system. The scheduler routine may run on each enabled sequencer. The schedulers may retrieve shred descriptors from a queue system. The sequencer associated with the scheduler may then execute the shred described by the descriptor. Other embodiments are also described and claimed. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide various embodiments of a method, a device and a system for scheduling OS independent 'shred' without interposition of an operating system.SOLUTION: For at least one embodiment, a shred is scheduled for execution not by an operating system but by a scheduler routine. The scheduler routine can travel on the respective validated sequencers. A scheduler can acquire a shred descriptor from a queue system. Next, a sequencer associated with the scheduler can execute the shred to be described by the descriptor. Other embodiments are also described, and claimed.
Abstract:
PROBLEM TO BE SOLVED: To provide a method for generating a persistent user-level thread. SOLUTION: Embodiments of the invention provide a method of creating, based on an operating-system (OS)-scheduled thread running on an OS-visible sequencer and using an instruction set extension, a persistent user-level thread to run on an OS-sequestered sequencer independently of context switch activities on the OS-scheduled thread. The OS-scheduled thread and the persistent user-level thread may share a common virtual address space. Embodiments of the invention may also provide a method of causing a service thread running on an additional OS-visible sequencer to provide OS services to the persistent user-level thread. Embodiments of the invention may further provide apparatus, system, and machine-readable medium thereof. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a method, a device, and a system for performing effective communication between instruction set architecture-based sequencers having heterogeneous resources. SOLUTION: The method includes: a step in which a first instruction sequencer is connected from a user-level application via the first instruction sequencer and a request is directly communicated to an accelerator having a heterogeneous resource with respect to the instruction sequencer; a step of providing the accelerator with the request via an exoskeleton related to the accelerator; and a step of performing a first function in parallel to a second function in the first instruction sequencer in response to the request in the accelerator. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a method, a device, and a system allowing effective communication between respective instruction set architecture base sequencers having heterogeneous resources. SOLUTION: This method is constructed of steps for: directly transmitting a request to an accelerator, which is connected via a first instruction sequencer and has heterogeneous resources about the first instruction sequencer, from a user level application to the first instruction sequencer; offering the request to the accelerator via an exoskeleton about the accelerator; and executing a first function in the accelerator in response to the request in parallel to a second function in the first instruction sequencer. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
Disclosed are embodiments of a system, methods and mechanism for management and translation of mapping between logical sequencer addresses and physical or logical sequencers in a multi-sequencer multithreading system. A mapping manager may manage assignment and mapping of logical sequencer addresses or pages to actual sequencers or frames of the system. Rationing logic associated with the mapping manager may take into account sequencer attributes when such mapping is performed Relocation logic associated with the mapping manager may manage spill and fill of context information to/from a backing store when re-mapping actual sequencers. Sequencers may be allocated singly, or may be allocated as part of partitioned blocks. The mapping manager may also include translation logic that provides an identifier for the mapped sequencer each time a logical sequencer address is used in a user program. Other embodiments are also described and claimed.
Abstract:
Method, apparatus and system embodiments to schedule OS-independent "shreds" without intervention of an operating system. For at least one embodiment, the shred is scheduled for execution by a scheduler routine rather than the operating system. A scheduler routine may run on each enabled sequencer. The schedulers may retrieve shred descriptors from a queue system. The sequencer associated with the scheduler may then execute the shred described by the descriptor. Other embodiments are also described and claimed.
Abstract:
Disclosed are embodiments of a system, methods and mechanism for management and translation of mapping between logical sequencer addresses and physical or logical sequencers in a multi-sequencer multithreading system. A mapping manager may manage assignment and mapping of logical sequencer addresses or pages to actual sequencers or frames of the system. Rationing logic associated with the mapping manager may take into account sequencer attributes when such mapping is performed Relocation logic associated with the mapping manager may manage spill and fill of context information to/from a backing store when re-mapping actual sequencers. Sequencers may be allocated singly, or may be allocated as part of partitioned blocks. The mapping manager may also include translation logic that provides an identifier for the mapped sequencer each time a logical sequencer address is used in a user program. Other embodiments are also described and claimed.
Abstract:
Es werden Techniken beschrieben, um eine kryptografische Speicherisolierung mit geringem Overhead bereitzustellen, um Angriffsschwachstellen in einer virtualisierten Mehrbenutzer-Rechenumgebung zu mindern. Speicherlese- und Speicherschreiboperationen für Zieldaten, wobei jede Operation über einen Befehl initiiert wird, der mit einer bestimmten virtuellen Maschine (VM) assoziiert ist, schließen die Generierung und/oder Validierung eines Nachrichtenauthentifizierungscodes ein, der wenigstens auf einem VM-spezifischen kryptografischen Schlüssel und einer physikalischen Speicheradresse der Zieldaten basiert. Derartige Operationen können ferner das Senden des generierten Nachrichtenauthentifizierungscodes über eine Vielzahl von Zusatzbits beinhalten, die innerhalb einer Datenzeile integriert sind, die die Zieldaten einschließt. Im Falle eines Validierungsfehlers können ein oder mehrere Fehlercodes generiert und verschiedenen Entitäten der Vertrauensdomänenarchitektur basierend auf einem Betriebsmodus der assoziierten virtuellen Maschine bereitgestellt werden.