International Business Machines Corporation

Lenovo (singapore) Pte. Ltd.

Globalfoundries Inc.

Clifton Ehrich Kerr

Justin Potok Bandholz

Alfredo Aldereguia

Grace Ann Richter

Jeffrey Ross Hamilton

Philip Louis Weinstein

Joseph Eric Maxwell

Kevin Michael Reinberg

Christopher Collier West

Zachary Benson Durham

Kevin S D Vernon

Kevin S Vernon

Connor B Reed

Pravin S Patel

Jonathan Randall Hinkle

Bruce James Wilkie

Christopher Landon Wood

Keith Manders Campbell

William James Sommerville

John Frank Nations, Jr

Shared memory workloads using existing network fabrics, including: presenting, by a Memory Mapped Input/Output (MMIO) translator, memory of the MMIO translator as a portion of a memory space of a host; receiving, by the MMIO translator, a first interrupt from an input/output (I/O) adapter; and storing, by the MMIO translator, without sending the first interrupt to an operating system, data associated with the first interrupt from the I/O adapter into the memory of the MMIO translator.

Shared memory workloads using existing network fabrics

Data exchange using fan unit signal lines is disclosed, including receiving a pulse width modulated (PWM) signal on a PWM signal line of a fan unit; detecting that a frequency of the PWM signal is outside a frequency range used to control a fan speed of a fan in the fan unit; selecting a data output based on the frequency of the PWM signal; and sending the data output on a tachometric signal line of the fan unit.

Data exchange using fan unit signal lines

Address verification on a bus, the bus connecting a plurality of receiving bus nodes and one or more sending bus nodes, the bus providing communication among the bus nodes, including: receiving, by a receiving bus node over the bus, a parity signal and an address signal, the address signal identifying an address of a target receiving bus node; determining, by the receiving bus node, whether the address of the target receiving bus node matches an address of the receiving bus node; responsive to determining that the address of the target receiving bus node matches the address of the receiving bus node, determining, by the receiving bus node, whether the parity signal is an expected parity signal; and responsive to determining that the parity signal is not the expected parity signal, suppressing, by the receiving bus node, an acknowledgment of receipt of the address signal.

Address verification on a bus

Methods, apparatuses, and computer program products for dynamically managing social networking groups according to embodiments of the present invention are provided. A particular embodiment includes detecting a predetermined number of user devices within a specified physical area; and in response to detecting the predetermined number of user devices within the specified physical area, creating a social networking group corresponding to the specified physical area. Another embodiment includes detecting a predetermined number of user devices exiting a specified physical area, each user device associated with a user belonging to a social networking group corresponding to the specified physical area; and in response to detecting the predetermined number of user devices exiting the specified physical area, destroying the social networking group after a duration following the detection of the predetermined number of users of the social networking group exiting the specified physical area.

Dynamically managing social networking groups

A method of detecting a cable connected to a first device includes generating a second signal within the first device, and outputting the second signal onto an input-only pin of a cable connector on the first device, wherein the input-only pin is assigned to receive a first signal from a driver on a second device when a cable is connected from the second device to the cable connector, and wherein the second signal has a frequency that is at least four times greater than the frequency of the first signal. The method further comprises determining that a cable is not connected to the cable connector in response to detecting the second signal on a wire coupled to the input-only pin, and determining that the cable is connected to the cable connector in response to detecting a signal other than the second signal.

Cable detection in a pin constrained connector

Embodiments provide for a cable connector for coupling a cable with a device having a mating connector. The cable connector includes a cable connector body having a device end, a cable end, a bottom side, and a pivot point on the bottom side between the device and cable ends. Also, the cable connector includes a strut having a first strut end pivotally coupled with the pivot point and a second strut end. The strut is operable to rotate between a retracted position and an actuated position. The second strut end is adapted to engage the device on a surface of the device below the mating connector in the actuated position.

Cable connector

A cable detection apparatus comprises a cable connector, a signal generator, and a detection module. The cable connector is located on a first device and has an input-only pin that is coupled to a receiver and assigned for receiving a first signal from a driver on a second device. The signal generator is located within the first device and has an output driving a second signal onto the input-only pin, wherein the second signal has a frequency that is at least four times greater than the frequency of the first signal. The detection module has a detection input coupled to the input-only pin, wherein the detection module produces a negative cable detection output in response to detecting the second signal, and wherein the detection module produces a positive cable detection output in response to detecting a signal other than the second signal.

Computer readable program instructions perform a method including identifying a starting location and a destination for traveling in a vehicle and identifying multiple available routes. Each route includes roadway segments that have a roadway type selected from multiple roadway types reflecting a set of roadway conditions. The method obtains a fuel price available to the vehicle, obtains a fuel economy value for the vehicle on each roadway type, and calculates a cost of driving each of a plurality of available routes. The cost of driving each available route is the sum of the cost of driving each segment of the route, wherein the cost of driving each roadway segment is the mathematical product of a length of the roadway segment and the available fuel price divided by the fuel economy for the vehicle on the roadway type for the roadway segment. The lowest cost route is then identified.

Identifying cost effective routes using vehicle fuel economy values that are specific to the roadway type

Error detection and correction of a data transmission, including: receiving a block of data, where the block includes a predefined number of words, with each word including a parity bit, where the block of data also an error-correcting code (ECC); determining, for each word in dependence upon the parity bit of the word, whether the word of the block includes a parity error; committing each word that does not include a parity error, if only one word of the block includes a parity error: correcting the one word that includes the parity error through use of the ECC of the block and committing the corrected word.

Error detection and correction of a data transmission

An apparatus includes a flexible support member having a first and second ends and a plurality of guides there between. The apparatus further includes an electrical generator having a magnet, an electrical coil surrounding the magnet, and a pair of electrical leads for delivering electrical current generated in the coil. A tensile member is connected between the first end of the support member and the magnet, wherein the tensile member extends along a path from the first end of the support member through the plurality of guides to the magnet. A spring element biases the magnet in a direction to impart tension to the tensile member. Deflection of the support member from a relaxed position to a deflected position modifies the length of the path of the tensile member to displace the magnet within the electrical coil and generate an electrical current.

Generating electrical current by deflection of a flexible support member

Methods, apparatus, and products are disclosed for optimizing a physical data communications topology between a plurality of computing nodes, the physical data communications topology including physical links configured to connect the plurality of nodes for data communications, that include carrying out repeatedly at a predetermined pace: detecting network packets transmitted through the links between each pair of nodes in the physical data communications topology, each network packet characterized by one or more packet attributes; assigning, to each network packet, a packet weight in dependence upon the packet attributes for that network packet; determining, for each pair of nodes in the physical data communications topology, a node pair traffic weight in dependence upon the packet weights assigned to the network packets transferred between that pair of nodes; and reconfiguring the physical links between each pair of nodes in dependence upon the node pair traffic weights.

Optimizing a physical data communications topology between a plurality of computing nodes

In one embodiment, a communication system for a multi-blade server system includes a multi-drop serial bus network interconnecting a management module with each of a plurality of servers in a multi-server chassis. A first transceiver subsystem is configured for communicating over the serial bus network between the management module and each server within a first frequency band. A second transceiver subsystem is configured for simultaneously communicating over the serial bus network between the management module and the servers within a second frequency band higher than the first frequency band. A first signal-filtering subsystem substantially filters out signals in the second frequency band from the first transceiver subsystem. A second signal-filtering subsystem substantially filters out the signals in the first frequency band from the second transceiver subsystem.

Dual-band communication of management traffic in a blade server system

Methods, apparatus, and products for detecting an increase in thermal resistance of a heat sink in a computer system, the heat sink dissipating heat for a component of the computer system, the computer system including a fan controlling airflow across the heat sink, the computer system also including a temperature monitoring device, including: measuring, by a monitoring module through use of the temperature monitoring device during operation of the computer system, thermal resistance of the heat sink; determining whether the measured thermal resistance of the heat sink is greater than a threshold thermal resistance, the threshold thermal resistance stored in a thermal profile in non-volatile memory, and if the measured thermal resistance of the heat sink is greater than the threshold thermal resistance, notifying a system administrator.

Growing community of inventors

Durham, NC, United States of America

Clifton Ehrich Kerr