International Business Machines Corporation

Ron Sivan

Dan S Chevion

Dov Ramm

Sima Nadler

Richard R Treumann

Guy Bashkansky

Sergei Shmulyian

Yuval Shimony

An automatic vehicular traffic flow control technique defines a controlled area, wherein vehicles belonging to different traffic streams contend for occupancy of a conflict zone. A traversal order is computed for the vehicles in the controlled area, wherein the ordered vehicles are assigned to traverse the conflict zone sequentially in accordance with their respective positions in the traversal order. Tracking and tracked vehicles are designated, wherein a respective tracked vehicle immediately precedes each of the tracking vehicles in the traversal order. The tracking vehicles maintain a specified physical relationship with their respective tracked vehicles until the tracked vehicle has traversed the conflict zone. The speed of the traffic streams is increased as necessary so as to achieve a desired throughput through the conflict zone.

Optimization of vehicular traffic flow through a conflict zone

Establishing communication between people when face-to-face communication is difficult by pointing a portable device in a direction of a target and recording a position and orientation of the portable device and by recording a distance between the portable device and the target. Further, this communication is established by calculating a location of the target based on the recorded position, orientation, and distance and broadcasting, via the portable device, a message including the calculated location of the target. Moreover, this communication is established when the target receiving the message, compares the calculated location of the target with an actual position of the target to determine whether the target that received the initiation message is within a predetermined proximity of the calculated location of the target. If the receiving target is within the predetermined proximity of the intended target, a reply is transmitted to the portable device to initiate handshaking.

Method of establishing communication between two or more real world entities and apparatuses performing the same

An embodiment of the present invention is directed to a method for compiling, storing, and interpreting, as often as needed, a representation of any MPI datatype, including the steps of compiling a tree representation of an MPI datatype into a compact, linear data gather scatter program (DGSP) wherein the DGSP is of a form general enough to encode an arbitrarily complex datatype, registering the compact linear DGSP with a communications subsystem for later interpretation by the subsystem for at least one of sends, receives, packs and unpacks, creating a registered DGSP, and interpreting the registered DGSP. In one embodiment of the present invention, the form of the DGSP uses a single generalized representation. In another embodiment the single generalized representation covers any of the arbitrarily complex datatype patterns that can arise in this context. In yet another embodiment, the single generalized representation provides that any datatype that can be constructed using an application programming interface (API) in MPI can be converted into the form.

Data gather/scatter machine

Growing community of inventors

Haifa, Israel

Ron Sivan