Patents by Inventor Soraya Ghiasi

Soraya Ghiasi 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: 8635478
    Abstract: During manufacture, an operating range for dynamic voltage and frequency scaling can be established. A nominal operating point is identified based on a design nominal operating frequency for a computer processor. The nominal operating point comprises a nominal operating voltage identified for the design nominal operating frequency. In dependence upon the nominal operating point, an operating range of frequency and voltage over which the computer processor is to function is determined. Information specifying the nominal operating point and the operating range is stored in non-volatile storage associated with the computer processor.
    Type: Grant
    Filed: December 29, 2011
    Date of Patent: January 21, 2014
    Assignee: International Business Machines Corporation
    Inventors: Harold W. Chase, Joshua D. Friedrich, Andrew J. Geissler, Soraya Ghiasi, Norman K. James, Jagat V. Pokala, Malcolm S. Ware
  • Patent number: 8261285
    Abstract: A data processing system includes a power supply, a plurality of processors wherein each processor is separately powerable by the power supply under operating system control. The operating system determines periodically a measure of system utilization and controls the switches to alter the number of active (powered) processors where the number of active processors reflects the measured system utilization and a set of utilization threshold values. System utilization may be based on the number of active tasks. The utilization thresholds preferably include a maximum threshold and a minimum threshold. A measured utilization exceeding the maximum threshold causes an increase in the number of active processors while utilization less than the minimum threshold causes a decrease in the number of active processors. The utilization thresholds may be determined from threshold factors that reflect time and date information, quality of service information, or a weighted average of historical utilization values.
    Type: Grant
    Filed: March 31, 2008
    Date of Patent: September 4, 2012
    Assignee: International Business Machines Corporation
    Inventors: Wesley Michael Felter, Soraya Ghiasi
  • Publication number: 20120198255
    Abstract: During manufacture, an operating range for dynamic voltage and frequency scaling can be established. A nominal operating point is identified based on a design nominal operating frequency for a computer processor. The nominal operating point comprises a nominal operating voltage identified for the design nominal operating frequency. In dependence upon the nominal operating point, an operating range of frequency and voltage over which the computer processor is to function is determined. Information specifying the nominal operating point and the operating range is stored in non-volatile storage associated with the computer processor.
    Type: Application
    Filed: December 29, 2011
    Publication date: August 2, 2012
    Applicant: International Business Machines Corporation
    Inventors: Harold W. Chase, Joshua D. Friedrich, Andrew J. Geissler, Soraya Ghiasi, Norman K. James, Jagat V. Pokala, Malcolm S. Ware
  • Patent number: 8214658
    Abstract: Mitigating effects of delamination of components in the data processing system is provided. A signal is received from one or more sensors in the data processing system. A determination is made as to whether the signal indicates that one threshold in a plurality of thresholds has been reached or exceeded. Responsive to the signal indicating that one threshold in the plurality of thresholds has been reached or exceeded, a determination is made as to whether the one threshold is a low temperature threshold or a high temperature threshold. Responsive to the one threshold being a low temperature threshold, one of a plurality of actions is initiated to increase a temperature of the data processing system thereby mitigating effects of delamination of the components in the data processing system.
    Type: Grant
    Filed: August 20, 2008
    Date of Patent: July 3, 2012
    Assignee: International Business Machines Corporation
    Inventors: Jon A. Casey, Michael S. Floyd, Soraya Ghiasi, Kenneth C. Marston, Jennifer V. Muncy, Malcolm S. Ware, Roger D. Weekly
  • Patent number: 8171319
    Abstract: Disclosed are systems, methods, and computer program products for managing power states in processors of a data processing system. In one embodiment, the invention is directed to a data processing system having dynamically configurable power-performance states (“pstates”). The data processing system includes a processor configured to operate at multiple states of frequency and voltage. The data processing system also has a power manager module configured to monitor operation of the data processing system. The data processing system further includes a pstates table having a plurality of pstate definitions, wherein each pstate definition includes a voltage value, a frequency value, and at least one unique pointer that indicates a transition from a given pstate to a different pstate.
    Type: Grant
    Filed: April 16, 2009
    Date of Patent: May 1, 2012
    Assignee: International Business Machines Corporation
    Inventors: Soraya Ghiasi, Malcolm S. Ware, Karthick Rajamani, Freeman L. Rawson, III, Michael S. Floyd, Juan C. Rubio
  • Patent number: 8055477
    Abstract: A benchmark tester retrieves a voltage margin that corresponds to a device that a system includes. The voltage margin indicates an additional amount of voltage to apply to a nominal voltage that, when added, results in the device operating at a power limit while executing a worst-case power workload. Next, the benchmark tester (or thermal power management device) sets an input voltage for the device to a value equal to the sum of the voltage margin and the nominal voltage. The benchmark tester then dynamically benchmark tests the system, which includes adjusting the device's frequency and input voltage while ensuring that the device does not exceed the device's power limit. In turn, the benchmark tester records a guaranteed minimum performance boost for the system based upon a result of the benchmark testing.
    Type: Grant
    Filed: November 20, 2008
    Date of Patent: November 8, 2011
    Assignee: International Business Machines Corporation
    Inventors: Harold W. Chase, Soraya Ghiasi, Michael Stephen Floyd, Joshua David Friedrich, Steven Paul Hartman, Norman Karl James, Malcolm Scott Ware, Richard L. Willaman
  • Patent number: 8032334
    Abstract: A system for identifying a subset of sensors to sample to reduce the frequency of sensor access. The system determines rise times and records values for the sensors in the system. A time criticality of the sensors is determined based on the rise times. The system processes the sensors by first creating sensor subsets based on one or more constraints on the sensors. The system monitors the values of the sensors in a sensor subset and flags a sensor when it makes a determination that, prior to a next scheduled sampling of the sensor subset, the value of a sensor in the monitored sensor subset will exceed a threshold constraint. The system moves those flagged sensors to a second sensor subset which complies with the sensor's constraints.
    Type: Grant
    Filed: December 22, 2008
    Date of Patent: October 4, 2011
    Assignee: International Business Machines Corporation
    Inventors: Andreas Bieswanger, Michael S. Floyd, Andrew J. Geissler, Soraya Ghiasi, Hye-Young McCreary, Guillermo J. Silva, Malcolm S. Ware
  • Patent number: 7921313
    Abstract: A power management system schedules the voltage and frequency of processors in a data processing system based on two criteria. The first criterion is a prediction of the performance that the work currently running on the processor will experience at the different frequencies that are available. The second criterion is a system-wide constraint on the total power budget allocated to processors. Based on these criteria, low-level code sets the frequency and voltage of the processors in the system to match what the operating system is currently running on them.
    Type: Grant
    Filed: April 17, 2008
    Date of Patent: April 5, 2011
    Assignee: International Business Machines Corporation
    Inventors: Soraya Ghiasi, Thomas Walter Keller, Jr., Ramakrishna Kotla, Freeman Leigh Rawson, III
  • Patent number: 7917328
    Abstract: Monitoring temperature excursions an assembly experiences over a life of the assembly is provided. A determination is made as to whether the assembly has been in service beyond a predetermined end of life objective. Responsive to the assembly failing to be in service beyond the predetermined end of life objective, a new temperature value associated with the assembly is read. A modifier value for a figure of merit (FOM) value is computed and added to a cumulative figure of merit value. The cumulative figure of merit value is compared to a cumulative stress figure of merit budget. Responsive to the cumulative figure of merit value exceeding the cumulative stress figure of merit budget, an identified stress management solution is implemented.
    Type: Grant
    Filed: August 20, 2008
    Date of Patent: March 29, 2011
    Assignee: International Business Machines Corporation
    Inventors: Jon A. Casey, Michael S. Floyd, Soraya Ghiasi, Kenneth C. Marston, Jennifer V. Muncy, Malcom S. Ware, Roger D. Weekly
  • Patent number: 7908493
    Abstract: A mechanism is provided for unified management of power, performance, and thermals in computer systems. This mechanism incorporates elements to effectively address all aspects of managing computing systems in an integrated manner, instead of independently. The mechanism employs an infrastructure for real-time measurements feedback, an infrastructure for regulating system activity, component operating levels, and environmental control, a dedicated control structure for guaranteed response/preemptive action, and interaction and integration components. The mechanism provides interfaces for user-level interaction. The mechanism also employs methods to address power/thermal concerns at multiple timescales. In addition, the mechanism improves efficiency by adopting an integrated approach, rather than treating different aspects of the power/thermal problem as individual issues to be addressed in a piecemeal fashion.
    Type: Grant
    Filed: June 6, 2007
    Date of Patent: March 15, 2011
    Assignee: International Business Machines Corporation
    Inventors: Andreas Bieswanger, Michael S. Floyd, Soraya Ghiasi, Steven P. Hartman, Thomas W. Keller, Jr., Hye-Young McCreary, Karthick Rajamani, Freeman L. Rawson, III, Juan C. Rubio, Malcolm S. Ware
  • Publication number: 20100268968
    Abstract: Disclosed are systems, methods, and computer program products for managing power states in processors of a data processing system. In one embodiment, the invention is directed to a data processing system having dynamically configurable power-performance states (“pstates”). The data processing system includes a processor configured to operate at multiple states of frequency and voltage. The data processing system also has a power manager module configured to monitor operation of the data processing system. The data processing system further includes a pstates table having a plurality of pstate definitions, wherein each pstate definition includes a voltage value, a frequency value, and at least one unique pointer that indicates a transition from a given pstate to a different pstate.
    Type: Application
    Filed: April 16, 2009
    Publication date: October 21, 2010
    Applicant: International Business Machines Corporation
    Inventors: Soraya Ghiasi, Malcolm S. Ware, Karthick Rajamani, Freeman L. Rawson, III, Michael S. Floyd, Juan C. Rubio
  • Publication number: 20100125436
    Abstract: A benchmark tester retrieves a voltage margin that corresponds to a device that a system includes. The voltage margin indicates an additional amount of voltage to apply to a nominal voltage that, when added, results in the device operating at a power limit while executing a worst-case power workload. Next, the benchmark tester (or thermal power management device) sets an input voltage for the device to a value equal to the sum of the voltage margin and the nominal voltage. The benchmark tester then dynamically benchmark tests the system, which includes adjusting the device's frequency and input voltage while ensuring that the device does not exceed the device's power limit. In turn, the benchmark tester records a guaranteed minimum performance boost for the system based upon a result of the benchmark testing.
    Type: Application
    Filed: November 20, 2008
    Publication date: May 20, 2010
    Applicant: International Business Machines Corporation
    Inventors: Harold W. Chase, Soraya Ghiasi, Michael Stephen Floyd, Joshua David Friedrich, Steven Paul Hartman, Norman Karl James, Malcolm Scott Ware, Richard L. Willaman
  • Publication number: 20100094572
    Abstract: Methods, apparatus, and computer program products are described for dynamic frequency and voltage scaling for a computer processor, including identifying during manufacture a nominal operating point of frequency and voltage for a computer processor, the nominal operating point including a nominal operating voltage identified for a design nominal operating frequency; determining, in dependence upon the nominal operating point, an operating range of frequency and voltage over which the computer processor is to function; and storing, in non-volatile storage on the computer processor during manufacture, information specifying the nominal operating point and the operating range.
    Type: Application
    Filed: October 15, 2008
    Publication date: April 15, 2010
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Harold W. Chase, Joshua D. Friedrich, Soraya Ghiasi, Norman K. James, Jagat V. Pokala
  • Patent number: 7681054
    Abstract: Processing system performance is improved while meeting power management constraints in a processing system by using activity factor headroom estimation. The method and system estimate the power consumption of the system from a model that relates measured activities at a present operating point to power consumption for any available operating point of one or more processors in the system. The method then chooses the operating point(s) with the highest performance among the available operating points that will still meet budgetary constraints or specific thresholds of power consumption. The budgetary constraints or specific thresholds may be dynamically adjusted, and the method will update the operating point(s) to maintain safe operation and maximize performance. The method provides the best performance for the executing workload while ensuring safe operation.
    Type: Grant
    Filed: October 3, 2006
    Date of Patent: March 16, 2010
    Assignee: International Business Machines Corporation
    Inventors: Soraya Ghiasi, Thomas Walter Keller, Karthick Rajamani, Freeman Leigh Rawson, III, Juan C. Rubio
  • Publication number: 20100049995
    Abstract: Mitigating effects of delamination of components in the data processing system is provided. A signal is received from one or more sensors in the data processing system. A determination is made as to whether the signal indicates that one threshold in a plurality of thresholds has been reached or exceeded. Responsive to the signal indicating that one threshold in the plurality of thresholds has been reached or exceeded, a determination is made as to whether the one threshold is a low temperature threshold or a high temperature threshold. Responsive to the one threshold being a low temperature threshold, one of a plurality of actions is initiated to increase a temperature of the data processing system thereby mitigating effects of delamination of the components in the data processing system.
    Type: Application
    Filed: August 20, 2008
    Publication date: February 25, 2010
    Applicant: International Business Machines Corporation
    Inventors: Jon A. Casey, Michael S. Floyd, Soraya Ghiasi, Kenneth C. Marston, Jennifer V. Muncy, Malcolm S. Ware, Roger D. Weekly
  • Publication number: 20100049466
    Abstract: Monitoring temperature excursions an assembly experiences over a life of the assembly is provided. A determination is made as to whether the assembly has been in service beyond a predetermined end of life objective. Responsive to the assembly failing to be in service beyond the predetermined end of life objective, a new temperature value associated with the assembly is read. A modifier value for a figure of merit (FOM) value is computed and added to a cumulative figure of merit value. The cumulative figure of merit value is compared to a cumulative stress figure of merit budget. Responsive to the cumulative figure of merit value exceeding the cumulative stress figure of merit budget, an identified stress management solution is implemented.
    Type: Application
    Filed: August 20, 2008
    Publication date: February 25, 2010
    Applicant: International Business Machines Corporation
    Inventors: Jon A. Casey, Michael S. Floyd, Soraya Ghiasi, Kenneth C. Marston, Jennifer V. Muncy, Malcom S. Ware, Roger D. Weekly
  • Patent number: 7533003
    Abstract: A weighted event counting system and method for processor performance measurements provides low latency and low error performance measurement capability. A weighted performance counter accumulates a performance count according to a plurality of event signals provided from functional units in the processor. Differing weights are applied to the event signals in according to the correlation between each event with processor performance. The weights may be provided from programmable registers, so that the weights can be adjusted under program control. The event signals may be combined to reduce the bit-width of the set of event signal, with mutually-exclusive events merged in single fields of the combinatorial result and events having the same weights merged according to a sub-total. The weights are applied to the combinatorial result and used to update a performance count. The performance count can then be used by power management software or hardware to make adjustments in operating parameters of the processor.
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: May 12, 2009
    Assignee: International Business Machines Corporation
    Inventors: Michael S. Floyd, Soraya Ghiasi, Thomas W. Keller, Jr., Karthick Rajamani, Freeman Leigh Rawson, III, Juan C. Rubio
  • Publication number: 20090099817
    Abstract: A system for identifying a subset of sensors to sample to reduce the frequency of sensor access. The system determines rise times and records values for the sensors in the system. A time criticality of the sensors is determined based on the rise times. The system processes the sensors by first creating sensor subsets based on one or more constraints on the sensors. The system monitors the values of the sensors in a sensor subset and flags a sensor when it makes a determination that, prior to a next scheduled sampling of the sensor subset, the value of a sensor in the monitored sensor subset will exceed a threshold constraint. The system moves those flagged sensors to a second sensor subset which complies with the sensor's constraints.
    Type: Application
    Filed: December 22, 2008
    Publication date: April 16, 2009
    Applicant: International Business Machines Corporation
    Inventors: Andreas Bieswanger, Michael S. Floyd, Andrew J. Geissler, Soraya Ghiasi, Hye-Young McCreary, Guillermo J. Silva, Malcolm S. Ware
  • Patent number: 7502705
    Abstract: A system for identifying a subset of sensors to sample to reduce the frequency of sensor access. The system determines rise times and records values for the sensors in the system. A time criticality of the sensors is determined based on the rise times. The system processes the sensors by first creating sensor subsets based on one or more constraints on the sensors. The system monitors the values of the sensors in a sensor subset and flags a sensor when it makes a determination that, prior to a next scheduled sampling of the sensor subset, the value of a sensor in the monitored sensor subset will exceed a threshold constraint. The system moves those flagged sensors to a second sensor subset which complies with the sensor's constraints.
    Type: Grant
    Filed: May 29, 2007
    Date of Patent: March 10, 2009
    Assignee: International Business Machines Corporation
    Inventors: Andreas Bieswanger, Michael S. Floyd, Andrew J. Geissler, Soraya Ghiasi, Hye-Young McCreary, Guillermo J. Silva, Malcolm S. Ware
  • Publication number: 20080307238
    Abstract: A system is provided for unified management of power, performance, and thermals in computer systems. This system incorporates elements to effectively address all aspects of managing computing systems in an integrated manner, instead of independently. The system employs an infrastructure for real-time measurements feedback, an infrastructure for regulating system activity, component operating levels, and environmental control, a dedicated control structure for guaranteed response/preemptive action, and interaction and integration components. The system provides interfaces for user-level interaction. The system also employs methods to address power/thermal concerns at multiple timescales. In addition, the system improves efficiency by adopting an integrated approach, rather than treating different aspects of the power/thermal problem as individual issues to be addressed in a piecemeal fashion.
    Type: Application
    Filed: June 6, 2007
    Publication date: December 11, 2008
    Inventors: Andreas Bieswanger, Michael S. Floyd, Soraya Ghiasi, Steven P. Hartman, Thomas W. Keller, JR., Hye-Young McCreary, Karthick Rajamani, Freeman L. Rawson, III, Juan C. Rubio, Malcolm S. Ware