Patents by Inventor Patrick Stuedi

Patrick Stuedi 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: 10055381
    Abstract: An RDMA-capable network interface controller provides an RDMA access to a physical memory using multiple mapping tables; the physical memory includes a plurality of physical memory regions, at least some of which are associated with a virtual memory region. A mapping unit is configured to map memory region identifiers, each of which is adapted to identify a virtual memory region and an associated physical memory region, to virtual memory regions and to the associated physical memory regions based on a mapping table selected from multiple mapping tables based on a network identifier. Each of the mapping tables is indexed using a plurality of memory region identifiers, each associated with a virtual memory region and a physical memory region. A processing unit is configured to receive an access request from a client for accessing one of the physical memory regions associated with a virtual memory region.
    Type: Grant
    Filed: November 21, 2015
    Date of Patent: August 21, 2018
    Assignee: International Business Machines Corporation
    Inventors: Bernard Metzler, Jonas Pfefferle, Patrick Stuedi, Animesh K. Trivedi
  • Patent number: 9940240
    Abstract: A persistent caching system is provided. The persistent caching system includes a storage system having a caching server for storing data, and a client for accessing the data through a network. The caching server is configured to store the data in a number of virtual memory blocks. The virtual memory blocks refer to an associated memory-mapped file in a file system of the caching server. The caching server is configured to export addresses of the virtual memory blocks to the client. The client is configured to access at least some of the virtual memory blocks through RDMA using the exported addresses. The caching server is configured to page virtual memory blocks being accessed by one or more clients through RDMA to and/or from the memory-mapped files associated with the accessed virtual memory blocks.
    Type: Grant
    Filed: October 15, 2014
    Date of Patent: April 10, 2018
    Assignee: International Business Machines Corporation
    Inventors: Bernard Metzler, Martin L. Schmatz, Patrick Stuedi, Animesh K. Trivedi
  • Patent number: 9904627
    Abstract: An RDMA-capable network interface controller provides an RDMA access to a physical memory using multiple mapping tables; the physical memory includes a plurality of physical memory regions, at least some of which are associated with a virtual memory region. A mapping unit is configured to map memory region identifiers, each of which is adapted to identify a virtual memory region and an associated physical memory region, to virtual memory regions and to the associated physical memory regions based on a mapping table selected from multiple mapping tables based on a network identifier. Each of the mapping tables is indexed using a plurality of memory region identifiers, each associated with a virtual memory region and a physical memory region. A processing unit is configured to receive an access request from a client for accessing one of the physical memory regions associated with a virtual memory region.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: February 27, 2018
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Bernard Metzler, Jonas Pfefferle, Patrick Stuedi, Animesh K. Trivedi
  • Patent number: 9497268
    Abstract: Method and device for data transmissions using RDMA. The present invention is implemented between a first entity using a first data structure type and a second entity using a second data structure type over a third entity. The third entity is coupled to a table caching fingerprints of first data structures of the first data structure type and second data structures of the second data structure type associated therewith. A certain first data structure and the second data structure associated therewith represent a certain, identical RDMA function call. A first data structure representing a certain RDMA function call is sent from the first entity to the third entity; the fingerprint for the sent first data structure is determined; a second data structure associated with the determined fingerprint is looked up in the table; and the looked up second data structure is sent to the second entity.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: November 15, 2016
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Bernard Metzler, Patrick Stuedi, Animesh Kumar Trivedi
  • Publication number: 20160267051
    Abstract: An RDMA-capable network interface controller provides an RDMA access to a physical memory using multiple mapping tables; the physical memory includes a plurality of physical memory regions, at least some of which are associated with a virtual memory region. A mapping unit is configured to map memory region identifiers, each of which is adapted to identify a virtual memory region and an associated physical memory region, to virtual memory regions and to the associated physical memory regions based on a mapping table selected from multiple mapping tables based on a network identifier. Each of the mapping tables is indexed using a plurality of memory region identifiers, each associated with a virtual memory region and a physical memory region. A processing unit is configured to receive an access request from a client for accessing one of the physical memory regions associated with a virtual memory region.
    Type: Application
    Filed: March 13, 2015
    Publication date: September 15, 2016
    Inventors: Bernard Metzler, Jonas Pfefferle, Patrick Stuedi, Animesh K. Trivedi
  • Publication number: 20160267052
    Abstract: An RDMA-capable network interface controller provides an RDMA access to a physical memory using multiple mapping tables; the physical memory includes a plurality of physical memory regions, at least some of which are associated with a virtual memory region. A mapping unit is configured to map memory region identifiers, each of which is adapted to identify a virtual memory region and an associated physical memory region, to virtual memory regions and to the associated physical memory regions based on a mapping table selected from multiple mapping tables based on a network identifier. Each of the mapping tables is indexed using a plurality of memory region identifiers, each associated with a virtual memory region and a physical memory region. A processing unit is configured to receive an access request from a client for accessing one of the physical memory regions associated with a virtual memory region.
    Type: Application
    Filed: November 21, 2015
    Publication date: September 15, 2016
    Inventors: Bernard Metzler, Jonas Pfefferle, Patrick Stuedi, Animesh K. Trivedi
  • Patent number: 9338193
    Abstract: Embodiments relate to providing remote procedure calls (RPC) with call-by-reference semantics using remote direct memory access (RDMA). An aspect includes establishing a session between a client and a server. A client session heap memory and a server session heap memory are initialized with a RDMA provider. A parameter is then stored in the session heap memory. A handle for the parameter is passed to the server which permits access to the parameter responsive to an on-demand request from the server.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: May 10, 2016
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Bernard Metzler, Patrick Stuedi, Animesh K. Trivedi
  • Patent number: 9332038
    Abstract: Embodiments relate to providing remote procedure calls (RPC) with call-by-reference semantics using remote direct memory access (RDMA). An aspect includes establishing a session between a client and a server. A client session heap memory and a server session heap memory are initialized with a RDMA provider. A parameter is then stored in the session heap memory. A handle for the parameter is passed to the server which permits access to the parameter responsive to an on-demand request from the server.
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: May 3, 2016
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Bernard Metzler, Patrick Stuedi, Animesh K. Trivedi
  • Publication number: 20150113088
    Abstract: A persistent caching system is provided. The persistent caching system includes a storage system having a caching server for storing data, and a client for accessing the data through a network. The caching server is configured to store the data in a number of virtual memory blocks. The virtual memory blocks refer to an associated memory-mapped file in a file system of the caching server. The caching server is configured to export addresses of the virtual memory blocks to the client. The client is configured to access at least some of the virtual memory blocks through RDMA using the exported addresses. The caching server is configured to page virtual memory blocks being accessed by one or more clients through RDMA to and/or from the memory-mapped files associated with the accessed virtual memory blocks.
    Type: Application
    Filed: October 15, 2014
    Publication date: April 23, 2015
    Inventors: Bernard Metzler, Martin L. Schmatz, Patrick Stuedi, Animesh K. Trivedi
  • Publication number: 20140359145
    Abstract: Embodiments relate to providing remote procedure calls (RPC) with call-by-reference semantics using remote direct memory access (RDMA). An aspect includes establishing a session between a client and a server. A client session heap memory and a server session heap memory are initialized with a RDMA provider. A parameter is then stored in the session heap memory. A handle for the parameter is passed to the server which permits access to the parameter responsive to an on-demand request from the server.
    Type: Application
    Filed: May 31, 2013
    Publication date: December 4, 2014
    Inventors: Bernard Metzler, Patrick Stuedi, Animesh K. Trivedi
  • Publication number: 20140359146
    Abstract: Embodiments relate to providing remote procedure calls (RPC) with call-by-reference semantics using remote direct memory access (RDMA). An aspect includes establishing a session between a client and a server. A client session heap memory and a server session heap memory are initialized with a RDMA provider. A parameter is then stored in the session heap memory. A handle for the parameter is passed to the server which permits access to the parameter responsive to an on-demand request from the server.
    Type: Application
    Filed: September 10, 2013
    Publication date: December 4, 2014
    Applicant: International Business Machines Corporation
    Inventors: Bernard Metzler, Patrick Stuedi, Animesh K. Trivedi
  • Publication number: 20140214997
    Abstract: Method and device for data transmissions using RDMA. The present invention is implemented between a first entity using a first data structure type and a second entity using a second data structure type over a third entity. The third entity is coupled to a table caching fingerprints of first data structures of the first data structure type and second data structures of the second data structure type associated therewith. A certain first data structure and the second data structure associated therewith represent a certain, identical RDMA function call. A first data structure representing a certain RDMA function call is sent from the first entity to the third entity; the fingerprint for the sent first data structure is determined; a second data structure associated with the determined fingerprint is looked up in the table; and the looked up second data structure is sent to the second entity.
    Type: Application
    Filed: January 28, 2014
    Publication date: July 31, 2014
    Applicant: International Business Machines Corporation
    Inventors: Bernard Metzler, Patrick Stuedi, Animesh Kumar Trivedi
  • Patent number: 8701155
    Abstract: A cloud infrastructure that communicates with computing devices is provided. The computing devices install filters on other computing devices that they wish to receive items from including pictures, messages, and documents. The filters include criteria that are evaluated on the computing devices, rather than at a server, to determine if an item may be sent to another computing device. The computing devices may then send items that match the criteria to the cloud infrastructure, and the items may be stored and queued for delivery to other computing devices. The items may be encrypted before being provided to the cloud infrastructure, and decrypted when received by the computing devices.
    Type: Grant
    Filed: June 14, 2010
    Date of Patent: April 15, 2014
    Assignee: Microsoft Corporation
    Inventors: Patrick Stuedi, Mahesh Balakrishnan, Iqbal Mohomed, Venugopalan Ramasubramanian, Zhuoqing Morley Mao, Edward P. Wobber
  • Publication number: 20130326122
    Abstract: A method of distributed memory access in a network, the network including a plurality of distributed compute elements, at least one control element and a plurality of distributed memory elements, wherein a data element is striped into data segments, the data segments being imported on at least a number of the distributed memory elements by multiple paths in the network, includes receiving, by a requesting element, credentials including an access permission for accessing the number of distributed memory elements and location information from the control element, the location information indicating physical locations of the data segments on the number of distributed memory elements; and launching, by the requesting element, a plurality of data transfers of the data segments over the multiple paths in the network to and/or from the physical locations.
    Type: Application
    Filed: May 21, 2013
    Publication date: December 5, 2013
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Patrick Droz, Antonius P. Engbersen, Christoph Hagleitner, Ronald P. Luijten, Bernard Metzler, Martin L. Schmatz, Patrick Stuedi, Animesh Kumar Trivedi
  • Publication number: 20110208958
    Abstract: A cloud infrastructure that communicates with computing devices is provided. The computing devices install filters on other computing devices that they wish to receive items from including pictures, messages, and documents. The filters include criteria that are evaluated on the computing devices, rather than at a server, to determine if an item may be sent to another computing device. The computing devices may then send items that match the criteria to the cloud infrastructure, and the items may be stored and queued for delivery to other computing devices. The items may be encrypted before being provided to the cloud infrastructure, and decrypted when received by the computing devices.
    Type: Application
    Filed: June 14, 2010
    Publication date: August 25, 2011
    Applicant: MICROSOFT CORPORATION
    Inventors: Patrick Stuedi, Mahesh Balakrishnan, Iqbal Mohomed, Venugopalan Ramasubramanian, Zhuoqing Morley Mao, Edward P. Wobber