Patents by Inventor Sambit Sahu

Sambit Sahu 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).

  • Supporting memory management in an offload of network protocol processing
    Patent number: 8332531
    Abstract: A number of improvements in network adapters that offload protocol processing from the host processor are provided. Specifically, mechanisms for handling memory management and optimization within a system utilizing an offload network adapter are provided. The memory management mechanism permits both buffered sending and receiving of data as well as zero-copy sending and receiving of data. In addition, the memory management mechanism permits grouping of DMA buffers that can be shared among specified connections based on any number of attributes. The memory management mechanism further permits partial send and receive buffer operation, delaying of DMA requests so that they may be communicated to the host system in bulk, and expedited transfer of data to the host system.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: December 11, 2012
    Assignee: International Business Machines Corporation
    Inventors: Douglas M. Freimuth, Elbert C. Hu, Ronald Mraz, Erich M. Nahum, Prashant Pradhan, Sambit Sahu, John M. Tracey
  • ESTIMATION OF TRANSIT DEMAND MODELS FOR ENHANCING RIDERSHIP
    Publication number: 20120310707
    Abstract: A method of estimating a transit demand graph includes collecting conditional information that includes at least one condition that when satisfied converts at least one non-rider into a rider, generating a non-rider transit demand graph by satisfying one of the conditions, and generating a normalized transit demand graph from the non-rider transit demand graph and a rider transit demand graph. The riders use public transit and the non-riders do not use public transit. The non-rider transit demand graph shows the demand of the non-riders for a public transit route. The rider transit demand graph shows the demand of riders for the same public transit route.
    Type: Application
    Filed: July 16, 2012
    Publication date: December 6, 2012
    Applicant: International Business Machines Corporation
    Inventors: Milind Naphade, Sambit Sahu
  • Monitoring Service in a Distributed Platform
    Publication number: 20120297054
    Abstract: Techniques for enabling monitoring across one or more domains are provided. The techniques include identifying information technology resources across one or more domains, collecting information technology dependency information relating to the information technology resources identified across one or more domains, collecting monitoring data from the information technology resources identified across one or more domains, and using the dependency information to aggregate the monitoring data into one or more pre-determined metrics.
    Type: Application
    Filed: May 20, 2011
    Publication date: November 22, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Gerd Breiter, Sambit Sahu, Anca Sailer, Hidayatullah Shaikh, Mahesh Viswanathan
  • Supporting memory management in an offload of network protocol processing
    Patent number: 8316109
    Abstract: A number of improvements in network adapters that offload protocol processing from the host processor are provided. Specifically, mechanisms for handling memory management and optimization within a system utilizing an offload network adapter are provided. The memory management mechanism permits both buffered sending and receiving of data as well as zero-copy sending and receiving of data. In addition, the memory management mechanism permits grouping of DMA buffers that can be shared among specified connections based on any number of attributes. The memory management mechanism further permits partial send and receive buffer operation, delaying of DMA requests so that they may be communicated to the host system in bulk, and expedited transfer of data to the host system.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: November 20, 2012
    Assignee: International Business Machines Corporation
    Inventors: Douglas M. Freimuth, Elbert C. Hu, Ronald Mraz, Erich M. Nahum, Prashant Pradhan, Sambit Sahu, John M. Tracey
  • Estimation of transit demand models for enhancing ridership
    Patent number: 8306848
    Abstract: A method of estimating a transit demand graph includes collecting conditional information that includes at least one condition that when satisfied converts at least one non-rider into a rider, generating a non-rider transit demand graph by satisfying one of the conditions, and generating a normalized transit demand graph from the non-rider transit demand graph and a rider transit demand graph. The riders use public transit and the non-riders do not use public transit. The non-rider transit demand graph shows the demand of the non-riders for a public transit route. The rider transit demand graph shows the demand of riders for the same public transit route.
    Type: Grant
    Filed: June 6, 2011
    Date of Patent: November 6, 2012
    Assignee: International Business Machines Corporation
    Inventors: Milind Naphade, Sambit Sahu
  • Fine-Grained Cloud Management Control Using Nested Virtualization
    Publication number: 20120260247
    Abstract: A computer implemented method, a computer program product and a data processing system allocate resources within a computing organization. A hypervisor layer is implemented on an underlying hardware. The hypervisor layer comprises a set of virtual machines. A first pseudo-hypervisor layer is then implemented within a first one of the set of virtual machines of the hypervisor layer. The first pseudo-hypervisor layer comprises a second set of virtual machines. A first software component is located within a first virtual machine of the second set of virtual machines of the first pseudo-hypervisor layer. A second software component is collocated within a second virtual machine of the second set of virtual machines of the first pseudo-hypervisor layer.
    Type: Application
    Filed: April 5, 2011
    Publication date: October 11, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Hai Huang, Yaoping Ruan, Sambit Sahu
  • Method for extracting signature from problem records through unstructured and structured text mapping, classification and ranking
    Patent number: 8260773
    Abstract: The structure attributes and unstructured attributes of a ticket are used to generate a problem signature. For structured attributes, correlation between field values is determined and fields with the highest weight are identified. For unstructured attributes, data mining techniques are applied to generate a plurality of keywords with a ranking for each ticket by identifying keywords, and commonly used acronyms and corpus variances. The set of structured attributes and the plurality of keywords from unstructured attributes form the signature of a given problem ticket.
    Type: Grant
    Filed: September 24, 2008
    Date of Patent: September 4, 2012
    Assignee: International Business Machines Corporation
    Inventors: Raymond B. Jennings, III, Hai Huang, Yaoping Ruan, Debanjan Saba, Ramendra K. Sahoo, Sambit Sahu, Anees A. Shaikh
  • Migrating Virtual Machines with Adaptive Compression
    Publication number: 20120221744
    Abstract: A method, data processing system, and computer program product for managing images. A processor unit divides an image for a virtual machine into blocks. The processor unit determines whether to compress the blocks prior to transmitting the blocks to a destination for the image. In response to a determination to compress the blocks, the processor unit compresses the blocks to form a compressed set of blocks. The processor unit sends the compressed set of blocks and any uncompressed blocks remaining in the blocks to the destination for the image.
    Type: Application
    Filed: February 25, 2011
    Publication date: August 30, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Patrick B. Heywood, Sambit Sahu, Kunwadee Sripanidkulchai, Jie Zheng
  • METHOD AND APPARATUS FOR EFFICIENT AND ACCURATE ANALYTICS WITH CROSS-DOMAIN CORRELATION
    Publication number: 20120215829
    Abstract: A method of generating analytics to provide an analysis of data from distinct data domains includes collecting sensor data from at least two distinct data domains, deriving parameters from the collected data, wherein at least one of the parameters is a first domain parameter derived from one of the data domains and at least another one of the parameters is a second domain parameter derived from the other data domain, providing a data model that enables a user to specify at least one of the first parameters and at least one of the second domain parameters and generate at least one rule based on the selected parameters, and generating analytics that analyze the collected data against the rules to determinate whether the rules have been satisfied and provide results of the analysis to a user of the analytics.
    Type: Application
    Filed: February 17, 2011
    Publication date: August 23, 2012
    Applicant: International Business Machines Corporation
    Inventors: Milind Naphade, Sambit Sahu, Jing Dai
  • TASK PRIORITIZATION MANAGEMENT IN A VIRTUALIZED ENVIRONMENT
    Publication number: 20120185848
    Abstract: A method, computer program product, and system for managing tasks for a virtual machine are presented. An amount of resources to perform a task for the virtual machine are identified in response to receiving a request to perform the task for the virtual machine in a set of data processing systems. A set of resources in the set of data processing systems available to complete the task for the virtual machine are identified. A set of priorities for a set of phases of the task are identified. Operations are scheduled on the set of resources to perform the task for the virtual machine based on the set of priorities identified for the set of phases of the task.
    Type: Application
    Filed: January 17, 2011
    Publication date: July 19, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Murthy V. Devarakonda, Patrick B. Heywood, Sambit Sahu, Kunwadee Sripanidkulchai, Jie Zheng
  • Centralized Rendering Of Collaborative Content
    Publication number: 20120124124
    Abstract: A method is disclosed that includes rendering a portion of a collaborative data stream at a first application running in a first virtual machine on a physical server. The method also includes the first application sharing the rendered portion of the collaborative data stream with a multiplicity of second applications running in second virtual machines on the physical server. Apparatus and program products are also disclosed.
    Type: Application
    Filed: November 16, 2010
    Publication date: May 17, 2012
    Applicant: International Business Machines Corporation
    Inventors: Kirk A. Beaty, Andrzej Kochut, Sambit Sahu, Charles O. Schulz, Hidayatullah Shaikh
  • MODULAR CLOUD DYNAMIC APPLICATION ASSIGNMENT
    Publication number: 20120054332
    Abstract: An illustrative embodiment includes a method for use with a computing system comprising a first computer coupled to one or more additional computers, wherein each of the one or more additional computers manages a respective set of one or more virtualized computing resources, and wherein the first computer manages the one or more additional computers. The method includes the steps of determining an assignment of at least one application to at least one of: (i) the first computer; and (ii) at least one of the one or more additional computers; and responsive to a detected condition, changing the assignment of the at least one application to the at least one of: (i) the first computer; and (ii) the at least one of the one or more additional computers.
    Type: Application
    Filed: August 31, 2010
    Publication date: March 1, 2012
    Applicant: International Business Machines Corporation
    Inventors: Sambit Sahu, Anca Sailer, Hidayatullah H. Shaikh
  • MODULAR CLOUD COMPUTING SYSTEM
    Publication number: 20120054345
    Abstract: In an illustrative embodiment, a computing system comprises a first computer coupled to one or more additional computers. Each of the one or more additional computers manages a respective set of one or more virtualized computing resources. The first computer manages the one or more additional computers.
    Type: Application
    Filed: August 31, 2010
    Publication date: March 1, 2012
    Applicant: International Business Machines Corporation
    Inventors: Sambit SAHU, Anca SAILER, Hidayatullah H. SHAIKH
  • METHOD AND SYSTEM FOR END-TO-END QUALITY OF SERVICE IN VIRTUALIZED DESKTOP SYSTEMS
    Publication number: 20120036251
    Abstract: A system and method is provided for integrating the front-end and back-end of a virtualized desktop environment to achieve an objective. Network measurements are gathered which are related to enforcement of an objective. Based on gathered network measurements and quality of service requirements for user sessions, a determination is made as to how back-resources and front-end remoting protocol settings are to be adjusted. The back-end resources and the front-end remoting protocol settings are controlled to achieve the objective.
    Type: Application
    Filed: August 9, 2010
    Publication date: February 9, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Kirk A. Beaty, Andrzej Kochut, Sambit Sahu, Charles O. Schulz, Hidayatullah H. Shaikh
  • DYNAMIC VIRTUAL MACHINE SHUTDOWN WITHOUT SERVICE INTERRUPTIONS
    Publication number: 20110307887
    Abstract: Techniques for dynamically managing a sleep state of a virtual machine are provided. The techniques include detecting idleness of a virtual machine, putting the idle virtual machine into a sleep state, implementing a virtual machine surrogate, wherein the virtual machine surrogate listens to network traffic, enabling the virtual machine to handle network traffic that is capable of being handled by the virtual machine, and enabling the virtual machine to queue network traffic and wake-up the virtual machine in the sleep state for network traffic that the virtual machine surrogate is incapable of handling.
    Type: Application
    Filed: June 11, 2010
    Publication date: December 15, 2011
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Hai Huang, Yaoping Ruan, Sambit Sahu, Anees A. Shaikh
  • Enabling Service Virtualization in a Cloud
    Publication number: 20110296021
    Abstract: A service-level specification for information technology services is obtained from a user. The service-level specification is mapped into an information technology specific deployment plan. Information technology specific resources are deployed in accordance with the information technology specific deployment plan to provide the information technology services.
    Type: Application
    Filed: May 28, 2010
    Publication date: December 1, 2011
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Chitra Dorai, Raymond B. Jennings, III, Sambit Sahu, Anees A. Shaikh
  • METHOD AND SYSTEM FOR MICROLOCKING WEB CONTENT
    Publication number: 20110296177
    Abstract: A method and system for ensuring the authenticity of server returned information displayed at a client browser is provided. The method comprises receiving the server returned information at a client computer; storing a copy of the server returned information at the client computer; inspecting the server returned information for one or more locked objects; allowing the client browser to operate one or more client installed scripts; inspecting the server returned information for any modifications to the one or more locked objects; and in response to determining that the one or more client installed scripts have made modifications to the one or more locked objects, replacing the modified locked objects with unmodified versions of the locked objects from the stored copy of the server returned information.
    Type: Application
    Filed: May 26, 2010
    Publication date: December 1, 2011
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Hani T. Jamjoom, Debanjan Saha, Sambit Sahu
  • Methods and computer program products for managing application performance on a network
    Patent number: 8005935
    Abstract: Managing application performance on a network. A network graph is generated from a set of application endpoints on the network. The network graph is annotated by associating one or more of the application endpoints with at least one of a corresponding latency annotation or a corresponding available bandwidth annotation. An end to end plan is formulated from the annotated network graph, wherein the plan maps one or more application requirements onto the plurality of paths in accordance with one or more end to end control adjustments including at least one of a server selection adjustment, an internet service provider (ISP) selector, or an overlay routing adjustment.
    Type: Grant
    Filed: April 5, 2007
    Date of Patent: August 23, 2011
    Assignee: International Business Machines Corporation
    Inventors: Prashant Pradhan, Debanjan Saha, Sambit Sahu, Manpreet Singh
  • Method and apparatus for proactive alert generation via equivalent machine configuration determination from problem history data
    Patent number: 7984333
    Abstract: A method, and system employing the method, initiates proactive maintenance of computer systems and/or devices in a computer network. The method determines the subsystems of the computers and network devices and analyzes their configuration data including their respective subsystems. The method generates maintenance characteristics for the devices, and determines a maintenance event for devices using the maintenance characteristics and the configuration data of the devices. The method initiates a maintenance solution of a device determined to have a problematic configuration.
    Type: Grant
    Filed: October 31, 2008
    Date of Patent: July 19, 2011
    Assignee: International Business Machines Corporation
    Inventors: Yaoping Ruan, Debanjan Saha, Sambit Sahu, Anees A. Shaikh
  • System and method for detecting status changes in a network using virtual coordinate mapping
    Patent number: 7979537
    Abstract: A system and method for scalable status change detection in a network of nodes includes embedding node coordinate positions into a virtual map environment. A cluster of nodes are represented with a representative node to form a hierarchy of nodes and clusters where changes in a status of the representative node imply a status change in the nodes of the cluster. By selectively monitoring the representative nodes for the changes in status, the representative nodes create a capability for scalable monitoring of the network.
    Type: Grant
    Filed: June 2, 2008
    Date of Patent: July 12, 2011
    Assignee: International Business Machines Corporation
    Inventors: Michael R. Haley, Sanghwan Lee, Prashant Pradhan, Debanjan Saha, Sambit Sahu