Patents by Inventor Rex McCrary

Rex McCrary has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10579388
    Abstract: A method for use in a processor for arbitrating between multiple processes to select wavefronts for execution on a shader core is provided. The processor includes a compute pipeline configured to issue wavefronts to the shader core for execution, a hardware queue descriptor associated with the compute pipeline, and the shader core. The shader core is configured to execute work for the compute pipeline corresponding to a first memory queue descriptor executed using data for the first memory queue descriptor that is loaded into a first hardware queue descriptor. The processor is configured to detect a context switch condition, and, responsive to the context switch condition, perform a context switch operation including loading data for a second memory queue descriptor into the first hardware queue descriptor. The shader core is configured to execute work corresponding to the second memory queue descriptor that is loaded into the first hardware queue descriptor.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: March 3, 2020
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Robert Scott Hartog, Mark Leather, Michael Mantor, Rex McCrary, Sebastien Nussbaum, Philip J. Rogers, Ralph Clay Taylor, Thomas Woller
  • Patent number: 10242420
    Abstract: Methods and apparatus are described. A method includes an accelerated processing device running a process. When a maximum time interval during which the process is permitted to run expires before the process completes, the accelerated processing device receives an operating-system-initiated instruction to stop running the process. The accelerated processing device stops the process from running in response to the received operating-system-initiated instruction.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: March 26, 2019
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Robert Scott Hartog, Ralph Clayton Taylor, Michael Mantor, Kevin John McGrath, Sebastien Nussbaum, Nuwan Jayasena, Rex McCrary, Mark Leather, Philip J. Rogers, Thomas Woller
  • Publication number: 20180321946
    Abstract: A method for use in a processor for arbitrating between multiple processes to select wavefronts for execution on a shader core is provided. The processor includes a compute pipeline configured to issue wavefronts to the shader core for execution, a hardware queue descriptor associated with the compute pipeline, and the shader core. The shader core is configured to execute work for the compute pipeline corresponding to a first memory queue descriptor executed using data for the first memory queue descriptor that is loaded into a first hardware queue descriptor. The processor is configured to detect a context switch condition, and, responsive to the context switch condition, perform a context switch operation including loading data for a second memory queue descriptor into the first hardware queue descriptor. The shader core is configured to execute work corresponding to the second memory queue descriptor that is loaded into the first hardware queue descriptor.
    Type: Application
    Filed: July 19, 2018
    Publication date: November 8, 2018
    Applicant: Advanced Micro Devices, Inc.
    Inventors: Robert Scott Hartog, Mark Leather, Michael Mantor, Rex McCrary, Sebastien Nussbaum, Philip J. Rogers, Ralph Clay Taylor, Thomas Woller
  • Patent number: 10078882
    Abstract: A method of processing commands is provided. The method includes holding commands in queues and executing the commands in an order based on their respective priority. Commands having the same priority are held in the same queue.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: September 18, 2018
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Philip J. Rogers, David Gotwalt, Tom Frisinger, Rex McCrary
  • Publication number: 20170076421
    Abstract: Methods and apparatus are described. A method includes an accelerated processing device running a process. When a maximum time interval during which the process is permitted to run expires before the process completes, the accelerated processing device receives an operating-system-initiated instruction to stop running the process. The accelerated processing device stops the process from running in response to the received operating-system-initiated instruction.
    Type: Application
    Filed: November 28, 2016
    Publication date: March 16, 2017
    Applicant: Advanced Micro Devices, Inc.
    Inventors: Robert Scott Hartog, Ralph Clayton Taylor, Michael Mantor, Kevin John McGrath, Sebastien Nussbaum, Nuwan Jayasena, Rex McCrary, Mark Leather, Philip J. Rogers, Thomas Woller
  • Publication number: 20170053377
    Abstract: A method of processing commands is provided. The method includes holding commands in queues and executing the commands in an order based on their respective priority. Commands having the same priority are held in the same queue.
    Type: Application
    Filed: November 8, 2016
    Publication date: February 23, 2017
    Applicant: Advanced Micro Devices, Inc.
    Inventors: Philip J. Rogers, David Gotwalt, Tom Frisinger, Rex McCrary
  • Patent number: 9519943
    Abstract: A method of processing commands is provided. The method includes holding commands in queues and executing the commands in an order based on their respective priority. Commands having the same priority are held in the same queue.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: December 13, 2016
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Philip J. Rogers, David Gotwalt, Tom Frisinger, Rex McCrary
  • Patent number: 9507632
    Abstract: Methods, systems, and computer readable media for preemptive context-switching of processes on an accelerated processing device are based upon a comparison of the running time of the process and a threshold time quanta. A method includes preempting a process running on an accelerated processing device based upon a running time of the process and a threshold time quanta.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: November 29, 2016
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Robert Scott Hartog, Ralph Clay Taylor, Michael Mantor, Kevin McGrath, Sebastien Nussbaum, Nuwan Jayasena, Rex McCrary, Mark Leather, Philip Rogers, Thomas Woller
  • Patent number: 9329893
    Abstract: A method resumes an accelerated processing device (APD) wavefront in which a subset of elements have faulted. A restore command for a job including a wavefront is received. A list of context states for the wavefront is read from a memory associated with a APD. An empty shell wavefront is created for restoring the list of context states. A portion of not acknowledged data is masked over a portion of acknowledged data within the restored wavefronts.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: May 3, 2016
    Assignee: ADVANCED MICRO DEVICES, INC.
    Inventors: Robert Scott Hartog, Ralph Clay Taylor, Michael Mantor, Thomas R. Woller, Kevin McGrath, Sebastien Nussbaum, Nuwan Jayasena, Rex McCrary, Philip J. Rogers, Mark Leather
  • Patent number: 9299121
    Abstract: Methods, systems, and computer readable media embodiments are disclosed for preemptive context-switching of processes running on a accelerated processing device. Embodiments include, detecting by an accelerated processing device a memory exception, and preempting a process from running on the accelerated processing device based upon the detected exception.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: March 29, 2016
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Robert Scott Hartog, Ralph Clay Taylor, Michael Mantor, Kevin McGrath, Sebastien Nussbaum, Nuwan Jayasena, Rex McCrary, Mark Leather, Philip J. Rogers, Thomas R. Woller
  • Patent number: 9256465
    Abstract: Methods, systems, and computer readable media embodiments are disclosed for preemptive context-switching of processes running on an accelerated processing device. A method includes, responsive to an exception upon access to a memory by a process running on a accelerated processing device, whether to preempt the process based on the exception, and preempting, based upon the determining, the process from running on the accelerated processing device.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: February 9, 2016
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Robert Scott Hartog, Ralph Clay Taylor, Michael Mantor, Kevin McGrath, Sebastien Nussbaum, Nuwan Jayasena, Rex McCrary, Mark Leather, Philip J. Rogers, Thomas R. Woller
  • Patent number: 9176795
    Abstract: A method, system, and computer program product are disclosed for providing improved access to accelerated processing device compute resources to user mode applications. The functionality disclosed allows user mode applications to provide commands to an accelerated processing device without the need for kernel mode transitions in order to access a unified ring buffer. Instead, applications are each provided with their own buffers, which the accelerated processing device hardware can access to process commands. With full operating system support, user mode applications are able to utilize the accelerated processing device in much the same way as a CPU.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: November 3, 2015
    Assignees: Advanced Micro Devices, Inc., ATI Technologies ULC
    Inventors: Rex McCrary, Michael Houston, Philip J. Rogers, Gongxian Jeffrey Cheng, Mark Hummel, Paul Blinzer
  • Patent number: 9122522
    Abstract: Embodiments describe herein provide a method of for managing task scheduling on a accelerated processing device. The method includes executing a first task within the accelerated processing device (APD), monitoring for an interruption of the execution of the first task, and switching to a second task when an interruption is detected.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: September 1, 2015
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Robert Scott Hartog, Ralph Clay Taylor, Michael Mantor, Thomas Roy Woller, Kevin McGrath, Sebastien Nussbaum, Nuwan S. Jayasena, Rex McCrary, Philip J. Rogers, Mark Leather
  • Patent number: 8933942
    Abstract: Embodiments describe herein provide an apparatus, a computer readable medium and a method for simultaneously processing tasks within an APD. The method includes processing a first task within an APD. The method also includes reducing utilization of the APD by the first task to facilitate simultaneous processing of the second task, such that the utilization remains below a threshold.
    Type: Grant
    Filed: December 8, 2011
    Date of Patent: January 13, 2015
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Robert Scott Hartog, Ralph Clay Taylor, Michael Mantor, Thomas Roy Woller, Kevin McGrath, Rex McCrary, Philip J. Rogers, Mark Leather
  • Patent number: 8854381
    Abstract: A processing unit that includes a plurality of virtual engines and a shader core. The plurality of virtual engines is configured to (i) receive, from an operating system (OS), a plurality of tasks substantially in parallel with each other and (ii) load a set of state data associated with each of the plurality of tasks. The shader core is configured to execute the plurality of tasks substantially in parallel based on the set of state data associated with each of the plurality of tasks. The processing unit may also include a scheduling module that schedules the plurality of tasks to be issued to the shader core.
    Type: Grant
    Filed: September 1, 2010
    Date of Patent: October 7, 2014
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Michael Mantor, Rex McCrary
  • Patent number: 8803891
    Abstract: Embodiments described herein provide a method of arbitrating a processing resource. The method includes receiving a command to preempt a task and preventing additional wavefronts associated with the task from being processed. The method also includes evicting currently executing wavefronts associated with the task from being processed based upon predetermined criteria.
    Type: Grant
    Filed: November 30, 2011
    Date of Patent: August 12, 2014
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Robert Scott Hartog, Ralph Clay Taylor, Michael Mantor, Sebastien Nussbaum, Rex McCrary, Mark Leather, Philip J. Rogers, Thomas R. Woller
  • Patent number: 8743131
    Abstract: A method for executing processes within a computer system is provided. The method includes determining when to switch from a first process, executing within the computer system, to executing another process. Execution of the first process corresponds to a computer system storage location. The method also includes switching to executing the other process based upon a time quantum and resuming execution of the first process after the time quantum has lapsed, the resuming corresponding to the storage location.
    Type: Grant
    Filed: September 9, 2010
    Date of Patent: June 3, 2014
    Assignees: Advanced Micro Devices, Inc., ATI Technologies ULC
    Inventors: Rex McCrary, Frank Liljeros, Gongxian Jeffrey Cheng
  • Publication number: 20130160019
    Abstract: A method resumes an accelerated processing device (APD) wavefront in which a subset of elements have faulted. A restore command for a job including a wavefront is received. A list of context states for the wavefront is read from a memory associated with a APD. An empty shell wavefront is created for restoring the list of context states. A portion of not acknowledged data is masked over a portion of acknowledged data within the restored wavefronts.
    Type: Application
    Filed: December 14, 2011
    Publication date: June 20, 2013
    Applicant: Advanced Micro Devices, Inc.
    Inventors: Robert Scott HARTOG, Ralph Clay Taylor, Michael Mantor, Thomas R, Woller, Kevin McGrath, Sebastien Nussbaum, Nuwan Jayasena, Rex McCrary, Philip J. Rogers, Mark Leather
  • Publication number: 20130155077
    Abstract: A method of determining priority within an accelerated processing device is provided. The accelerated processing device includes compute pipeline queues that are processed in accordance with predetermined criteria. The queues are selected based on priority characteristics and the selected queue is processed until a time quantum lapses or a queue having a higher priority becomes available for processing.
    Type: Application
    Filed: December 14, 2011
    Publication date: June 20, 2013
    Applicant: Advanced Micro Devices, Inc.
    Inventors: Robert Scott HARTOG, Mark Leather, Michael Mantor, Rex McCrary, Sebastien Nussbaum, Philip J. Rogers, Ralph Clay Taylor, Thomas Woller
  • Publication number: 20130155079
    Abstract: Provided is a method for processing a command in a computing system including an accelerated processing device (APD) having a command processor. The method includes executing an interrupt routine to save one or more contexts related to a first set of instructions on a shader core in response to an instruction to preempt processing of the first set of instructions.
    Type: Application
    Filed: December 14, 2011
    Publication date: June 20, 2013
    Inventors: Robert Scott HARTOG, Nuwan JAYASENA, Mark LEATHER, Michael MANTOR, Rex McCRARY, Kevin McGRATH, Sebastien NUSSBAUM, Philip J. ROGERS, Ralph Clay TAYLOR, Thomas R. WOLLER