High Performance Computing Applications in Mexico


HIPERCAM - ITDC-216

Keywords: HPCN, neural networks, image processing, domain decomposition, elastohydrodynamic lubrication, parallelisation


Start Date: 1 February 95 / Duration: 30 months

[ participants / contact]


Objectivies and Approach

HIPERCAM covers research in the application of high performance computing to areas such as mechanical engineering, environmental engineering and computer science. The technical domains covered are image processing, neural networks and natural language processing, elastohydrodynamic lubrication and domain decomposition.

Progress and Results

Image Processing: Two prototypes of a parallel image processing machine have been developed. One uses an image algebra, and the other uses a cellular automata specification. Both have been implemented on a workstation cluster, and it is intended to port them to the Parsytec's PowerXplorer.

Neural Networks and Natural Language Processing: Experiments are being conduceted on machine translation from English to Spanish and vice-versa. The systems have been implemented on a sequential computer and will now be ported to parallel machine.

Elastohydrodynamic Lubrication: Application of numerical and analytical methods to the simulation of roughness behaviour in heavily loaded elastohydrodynamic lubricated contacts. A sequential code for smooth surfaces has been validated and tested. A paralellised version has been validated and tested. Sequential implementation of multi-grid codes is now in progress.

Domain Decomposition: Experiments with data decomposition techniques that can be derived at compile time. Some research groups rely on language extensions to guide data decomposition. In this approach, the data decomposition is derived by the compiler during an optimisation phase. Experiments performed on the Parsytec's PowerXplorer with a data decomposition technique that reduces communication has improved performance for a class of regular problems by 40% compared to traditional techniques.

Information Dissemination Activities and/or Exploitation

Much of this work has been the subject of Master and PhD theses. Project reports and technical reports on all of these subjects are available directly from the contact person.


Coordinator

ITESM - Centro de Supercomputo
Ave. E. Garza Sada 2501 Sur
Monterrey, NL 64849, MEX

EU Partners

Parsytec Computer GmbH, D
Pallas GmbH, D

Non-EU Partners

ITESM, MEX
Instituto Tecnologico y de Estudios Superiores de Monterrey, MEX

CONTACT POINT

Dr. David A. Gharza-Salazar
Tel: +52 8 358 20 00 Ext. 5244
Fax: +52 8 3284 081
E-mail: dgarza@campus.mty.itesm.mx


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HIPERCAM - ITDC-216, May 1997


please address enquiries to the ESPRIT Information Desk

html version of synopsis by Nick Cook