POLYSHIFT Communications Software for the Connection Machine System CM-200

POLYSHIFT Communications Software for the Connection Machine System CM-200

We describe the use and implementation of a polyshift function PSHIFT for circular shifts and end{oo shifts. Polyshift is useful in many scientiic codes using regular grids, such as nite diierence codes in several dimensions, multigrid codes, molecular dynamics computations, and in lattice gauge physics computations , such as Quantum Chromodynamics (QCD) calculations. Our implementation of the ...

Extraction on Connection Machine CM - 5

(Summary of Results) Abstract In this paper, we present a parallel implementation of an image feature extraction task on Connection Machine CM-5. We show that, given a 2048 2048 grey level image as input, the extraction of image features, which includes edge detection, thinning, linking, and linear approximation , can be performed in less than 1.2 seconds on a partition of CM-5 having 512 proce...

An Eecient Communication Strategy for Finite Element Methods on the Connection Machine Cm-5 System

The Network Architecture of the Connection Machine CM - 5

The Connection Machine Model CM-5 Supercomputer is a massively parallel computer system designed to ooer performance in the range of 1 teraaops (10 12 oating-point operations per second). The CM-5 obtains its high performance while ooering ease of programming, exibility, and reliability. The machine contains three communication networks: a data network, a control network, and a diagnostic netwo...

Face Recognition on the Connection Machine CM-5

A biologically motivated compute intensive approach to computer vision is developed and applied to the problem of face recognition. The approach is based on the use of two-dimensional Gabor functions that t the receptive elds of simple cells in the primary visual cortex of mammals. A descriptor set that is robust against translations is extracted and used for a search in an image database. The ...