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I. Benet Llobera*, A. Medina Sierra**, C. Ayora+ and J. Carrera*

*Departament d'Enginyeria del Terreny, E.T.S.E.C.C.P.B., U.P.C., Barcelona, Spain
**Departament de Matematica Aplicada III, E.T.S.E.C.C.P.B., U.P.C., Barcelona, Spain
+Institut de Ciencies de la Terra, C.S.I.C., Barcelona, Spain

doi:10.4203/ccp.57.3.8

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I. Benet Llobera, A. Medina Sierra, C. Ayora, J. Carrera, "The Parallel Prototype of the Reactive Transport of Solutes Code", in B.H.V. Topping, (Editor), "Developments in Computational Mechanics with High Performance Computing", Civil-Comp Press, Edinburgh, UK, pp 113-119, 1999. doi:10.4203/ccp.57.3.8

Abstract

RETRASO is a code capable to simulate REactive TRAnsport of SOlutes. The code solves the reactive transport problem by substituting the chemical equations into a source/sink term of the transport equation leading to a system of nonlinear partial differential equations.

A parallel version of RETRASO has been developed to reduce the simulation time using a SPMD (Single Program Multiple Data) with message passing communication for distributed memory architecture. As a result of the CPU profiling analysis, parallelisation was focused on the following most consuming CPU time (more than 90%) parts: 1) the building of the Jacobian matrix of the Newton- Raphson linear system with a specific algorithm that minimises the communication needs, and 2) solving the system itself by a linear solver module developed at CEPBA (European Centre for Parallelism of Barcelona, UPC).

The performance of the parallelised version of RETRASO was checked in a SGI ORIGIN 2000 machine with a PVM version based on sockets.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 57 DEVELOPMENTS IN COMPUTATIONAL MECHANICS WITH HIGH PERFORMANCE COMPUTING Edited by: B.H.V. Topping Paper III.8 The Parallel Prototype of the Reactive Transport of Solutes Code I. Benet Llobera, A. Medina Sierra, C. Ayora+ and J. Carrera Departament d'Enginyeria del Terreny, E.T.S.E.C.C.P.B., U.P.C., Barcelona, Spain *Departament de Matematica Aplicada III, E.T.S.E.C.C.P.B., U.P.C., Barcelona, Spain +Institut de Ciencies de la Terra, C.S.I.C., Barcelona, Spain doi:10.4203/ccp.57.3.8 purchase the full-text of this paper Full Bibliographic Reference for this paper I. Benet Llobera, A. Medina Sierra, C. Ayora, J. Carrera, "The Parallel Prototype of the Reactive Transport of Solutes Code", in B.H.V. Topping, (Editor), "Developments in Computational Mechanics with High Performance Computing", Civil-Comp Press, Edinburgh, UK, pp 113-119, 1999. doi:10.4203/ccp.57.3.8 Abstract RETRASO is a code capable to simulate REactive TRAnsport of SOlutes. The code solves the reactive transport problem by substituting the chemical equations into a source/sink term of the transport equation leading to a system of nonlinear partial differential equations. A parallel version of RETRASO has been developed to reduce the simulation time using a SPMD (Single Program Multiple Data) with message passing communication for distributed memory architecture. As a result of the CPU profiling analysis, parallelisation was focused on the following most consuming CPU time (more than 90%) parts: 1) the building of the Jacobian matrix of the Newton- Raphson linear system with a specific algorithm that minimises the communication needs, and 2) solving the system itself by a linear solver module developed at CEPBA (European Centre for Parallelism of Barcelona, UPC). The performance of the parallelised version of RETRASO was checked in a SGI ORIGIN 2000 machine with a PVM version based on sockets. purchase the full-text of this paper (price £20) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £70 +P&P)
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