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: 10055381Abstract: 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: GrantFiled: November 21, 2015Date of Patent: August 21, 2018Assignee: International Business Machines CorporationInventors: Bernard Metzler, Jonas Pfefferle, Patrick Stuedi, Animesh K. Trivedi
-
Patent number: 9940240Abstract: 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: GrantFiled: October 15, 2014Date of Patent: April 10, 2018Assignee: International Business Machines CorporationInventors: Bernard Metzler, Martin L. Schmatz, Patrick Stuedi, Animesh K. Trivedi
-
Patent number: 9904627Abstract: 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: GrantFiled: March 13, 2015Date of Patent: February 27, 2018Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Bernard Metzler, Jonas Pfefferle, Patrick Stuedi, Animesh K. Trivedi
-
Patent number: 9497268Abstract: 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: GrantFiled: January 28, 2014Date of Patent: November 15, 2016Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Bernard Metzler, Patrick Stuedi, Animesh Kumar Trivedi
-
Publication number: 20160267051Abstract: 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: ApplicationFiled: March 13, 2015Publication date: September 15, 2016Inventors: Bernard Metzler, Jonas Pfefferle, Patrick Stuedi, Animesh K. Trivedi
-
Publication number: 20160267052Abstract: 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: ApplicationFiled: November 21, 2015Publication date: September 15, 2016Inventors: Bernard Metzler, Jonas Pfefferle, Patrick Stuedi, Animesh K. Trivedi
-
Patent number: 9338193Abstract: 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: GrantFiled: May 31, 2013Date of Patent: May 10, 2016Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Bernard Metzler, Patrick Stuedi, Animesh K. Trivedi
-
Patent number: 9332038Abstract: 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: GrantFiled: September 10, 2013Date of Patent: May 3, 2016Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Bernard Metzler, Patrick Stuedi, Animesh K. Trivedi
-
Publication number: 20150113088Abstract: 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: ApplicationFiled: October 15, 2014Publication date: April 23, 2015Inventors: Bernard Metzler, Martin L. Schmatz, Patrick Stuedi, Animesh K. Trivedi
-
Publication number: 20140359145Abstract: 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: ApplicationFiled: May 31, 2013Publication date: December 4, 2014Inventors: Bernard Metzler, Patrick Stuedi, Animesh K. Trivedi
-
Publication number: 20140359146Abstract: 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: ApplicationFiled: September 10, 2013Publication date: December 4, 2014Applicant: International Business Machines CorporationInventors: Bernard Metzler, Patrick Stuedi, Animesh K. Trivedi
-
Publication number: 20140214997Abstract: 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: ApplicationFiled: January 28, 2014Publication date: July 31, 2014Applicant: International Business Machines CorporationInventors: Bernard Metzler, Patrick Stuedi, Animesh Kumar Trivedi
-
Patent number: 8701155Abstract: 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: GrantFiled: June 14, 2010Date of Patent: April 15, 2014Assignee: Microsoft CorporationInventors: Patrick Stuedi, Mahesh Balakrishnan, Iqbal Mohomed, Venugopalan Ramasubramanian, Zhuoqing Morley Mao, Edward P. Wobber
-
Publication number: 20130326122Abstract: 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: ApplicationFiled: May 21, 2013Publication date: December 5, 2013Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Patrick Droz, Antonius P. Engbersen, Christoph Hagleitner, Ronald P. Luijten, Bernard Metzler, Martin L. Schmatz, Patrick Stuedi, Animesh Kumar Trivedi
-
Publication number: 20110208958Abstract: 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: ApplicationFiled: June 14, 2010Publication date: August 25, 2011Applicant: MICROSOFT CORPORATIONInventors: Patrick Stuedi, Mahesh Balakrishnan, Iqbal Mohomed, Venugopalan Ramasubramanian, Zhuoqing Morley Mao, Edward P. Wobber