International Business Machines Corporation

Qualcomm Incorporated

James Xenidis

Ahmed Gheith

Brian Lee White Eagle

Eric Van Hensbergen

Kanak Behari Agarwal

Ramakrishnan Rajamony

Patrick Joseph Bohrer

Michael D Kistler

Mark Richard Nutter

Michael Norman Day

Maximino Aguilar, Jr

Karl J Weinmeister

Alyson T Cabral

Alexander J Buck

Charles Ray Johns

Hubertus Franke

Giles R Frazier

Leah Shalev

Bradly George Frey

Michael D Snyder

Shmuel Ben-Yehuda

Julian Satran

Zorik Machulsky

Orran Yaakov Krieger

Cathy May

Jon K Kriegel

Gary L Whisenhunt

Benjamin Herrenschmidt

Andrew Matthew Theurer

Kirk Edward Morrow

Kumar K Gala

Alex Chunghen Chow

Michael Stan Gowen

Becky Bruce

Michael J Neuling

Michael K Gschwind

Michael Steven Siegel

Naresh Nayar

Eric Rozner

Gregory Scott Still

Prabhakar Nandavar Kudva

Han Zhao

Justin Gregory Manweiler

Ilan Shimony

Gheorghe Calin Cascaval

Pia Naoko Sanda

James Lee Van Oosten

Daniel James Henderson

Pablo Montesinos Ortego

Dario Suarez Gracia

David W Siegel

Jan Simon Rellermeyer

Jon David Mason

Scott D Guthridge

Maximino Aguilar

A request to access to a logical location in a file stored in a content addressable storage (CAS) system can be processed by retrieving first tree data from a first node in a first hash tree that represents a first version of the file. Based on the first tree data, a second node is selected from which a CAS signature is compared to a reserved CAS signature to determine the proper file version. In response to a match, a third node is accessed in a second hash tree that represents a second version of the file. Tree data is retrieved from a third node.

File versions within content addressable storage

A request to access to a logical location in a file stored in a content addressable storage (CAS) system can be handled by retrieving first tree data from a first node in a hash tree that represents the file, the first tree data including a first hash tree depth, a first CAS signature, a block size and a file size. Based on the tree data, a second node is selected from a higher level in the hash tree. Second tree data from the second node of the hash tree that represents the file is retrieved, including a second CAS signature. The second CAS signature is determined to match a reserved CAS signature, and in response, an indication that the requested logical location is unallocated within the file is provided.

Files having unallocated portions within content addressable storage

For location-based communication with mobile devices, a set of callee conditions is received at a caller's device, which has to be satisfied by a callee according to information descriptive of a condition of the callee. The state information is distinct from the location and a time of the callee's presence at the location. An evaluation is made that each device associated with each potential callee in a first subset has been present at the location at a specified time, and that each potential callee in the first subset satisfies the set of callee conditions. At the caller's device, an instruction is received for making a telecommunication call to a device of a potential callee in a first subset. The call is initiated from the caller's device to mobile devices associated with the first subset of potential callees.

Callee condition based communication with mobile devices

Approaches presented herein enable performing a health analysis of a user using a smart floor mat. Specifically, a sensory array of the smart floor mat collects static and dynamic pressure data for capturing the movement and force exerted by a user's feet as the user walks across the smart floor mat. A healthcare analysis is then performed by comparing this current measurement data against the user's historical measurement data and expected results to generate a healthcare insight such as a trend, pattern, or deviation. The healthcare insight can predict or indicate a health issue. If a deviation exceeding a predefined permissible threshold exists, a healthcare professional can be notified.

Performing a health analysis using a smart floor mat

A method, system and computer program product for assisting a user to meet with other users with complementary attributes. Attributes (e.g., likes, dislikes) of a user, such as a user of a mobile device, are received to populate a profile of the user. The user attributes of profiles of actively participating users that are located in a geographic area are analyzed with respect to the attributes of the user to identify other users with complementary profiles. Those users with complementary profiles as the user are clustered to form a 'cluster' at a designated waypoint. Directions are then provided to the user to reach the designated waypoint to meet the other users of the same cluster. In this manner, the user is able to meet other users in the physical world with complementary interests and experiences at a designated waypoint.

Utilizing attributes of users to cluster users at a waypoint

Systems, methods, and computer program products retrieve data from a low retrieval speed device. A request is made to retrieve data from the low retrieval speed device. A determination is made that the time to respond to the request will exceed a threshold amount of time. In response to the determination that the time to respond to the request will exceed the threshold amount of time, a load stall interrupt is generated. In response to the load stall interrupt, one or more system resources associated with a source of the request are released.

Load stall interrupt

In an approach to cooperative evidence gathering, a first computing device receives a request for data corresponding to an event, where a second computing device detecting the event initiates the request for data. The first computing device aggregates data from one or more sensors, the one or more sensors associated with one or more first computing devices within a proximity of a location of the event. The first computing device determines whether at least a portion of the aggregated data is applicable to the event.

Cooperative evidence gathering

A method, system, and computer program product for resolving cache lookup of large pages with variable granularity are provided in the illustrative embodiments. A number of unused bits in an available number of bits is identified. The available number of bits is configured to address a page of data in memory, wherein the page exceeding a threshold size, and the page comprising a set of parts. The unused bits are mapped to the plurality of parts such that a value of the unused bits corresponds to existence of a subset of the set of parts in a memory. A virtual address is translated to a physical address of a requested part in the set of parts. A determination is made, using the unused bits, whether the requested part exists in the memory.

Resolving cache lookup of large pages with variable granularity

Multi-processor computing device methods manage resource accesses by a signaling event manager signaling processor elements requesting access to a resource to wake up to access the resource when the resource is available or wait for an event when the resource is busy. Processor elements may enter a sleep state while awaiting access to the requested resource. When multiple elements are waiting for the resource, the processor element with a highest assigned priority is signaled to wake up when the resource is available without waking other elements. Priorities may be assigned to processor elements waiting for the resource based on a heuristic or parameter that may depend on a state of the computing device or the processor elements. A sleep duration may be estimated for a processor element waiting for a resource and the processor element may be removed from a scheduling queue or assigned another thread during the sleep duration.

Directed event signaling for multiprocessor systems

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Cedar Park, TX, United States of America

James Xenidis