D.e. Shaw Research, LLC

Shaw, David E.

Ron Dror

David E Shaw

Martin M Deneroff

Ping Tak Peter Tang

John K Salmon

Brannon J Batson

Kevin J Bowers

J P Grossman

Richard H Larson

John Klepeis

Michael Eastwood

Yibing Shan

A method for managing flow of particles into an array of pairwise-point-interaction-module includes receiving a first set of particles into a first queue. The first set is a proper subset of a second set of particles that comprises all particles that are to be passed into an array of pairwise-point-interaction-modules during a current time period. Prior to having received all particles from the second set, particles from the first set are allowed to pass from the first queue into the array.

Suppressing interaction between bonded particles

A method comprising causing a simulation machine for molecular dynamic simulation to determine that a topological distance that separates two particles is less than a threshold. The simulation machine includes nodes connected by a network. The nodes collectively representing a volume with each node corresponding to a portion of the simulation space. A topological relationship between the nodes corresponds to spatial relationship thereof in the simulation space. The simulation volume is occupied by particles that interact with each other. The two particles are among these particles. The simulation volume includes node boxes, each of which is handled by one of the nodes. Each of the nodes is implemented as an application specific integrated circuit that includes a combination of first and second hardware elements. The first hardware elements are especially designed to perform pairwise interactions. The second hardware elements operate to provide potentially interacting particles to the first hardware elements.

A method for performing computations associated with bodies located in a computation region includes, for each subset of multiple subsets of the computations, performing the computations in that subset of computations, including accepting data of bodies located in each of a plurality of import regions associated with the subset of the computations, the import regions being parts of the computation region; for each combination of a predetermined plurality of combinations of multiple of the import regions, performing computations associated with sets of bodies, wherein for each of the sets of bodies, at least one body of the set is located in each import region of the combination.

Zonal methods for computation of particle interactions

A computation system for computing interactions in a multiple-body simulation includes an array of processing modules arranged into one or more serially interconnected processing groups of the processing modules. Each of the processing modules includes storage for data elements and includes circuitry for performing pairwise computations between data elements each associated with a spatial location. Each of the pairwise computations makes use of a data element from the storage of the processing module and a data element passing through the serially interconnected processing modules. Each of the processing modules includes circuitry for selecting the pairs of data elements according to separations between spatial locations associated with the data elements.

Parallel computer architecture for computation of particle interactions

A parallel processing system for computing particle interactions includes a plurality of computation nodes arranged according to a geometric partitioning of a simulation volume. Each computation node has storage for particle data. This particle data is associated with particles in a region of the geometrically partitioned simulation volume. The parallel processing system also includes a communication system having links interconnecting the computation nodes. Each of the computation nodes includes a processor subsystem. These processor subsystems cooperate to coordinate computation of the particle interactions in a distributed manner.

Parallel processing system for computing particle interactions

A computer-implemented method for determining computational units for computing interactions among sets of bodies located in a computation region includes, for each computation associated with one of the sets of bodies, determining, according to an assignment rule that provides a mapping from a location of each of the bodies to a determined computation unit from the plurality of computation units, a computation unit from a plurality of computation units for performing the computation.

Determining computational units for computing multiple body interactions

A method and a corresponding software and a system for processing a charge distribution according to a spreading function and a predefined operation are described.

Growing community of inventors

New York, NY, United States of America

Ron Dror