Concept

Cray

Related publications (32)

Can a Helmholtz solver run on a cluster?

Marc Anthony David Habisreutinger, Emmanuel Leriche, Vincent Keller

Our vectorized Helmholtz solver runs at 85% efficiency on a NEC SX-5. The most time-consuming parts have been ported on SMP, NUMA, and cluster architectures. It is shown that an OpenMP version can deliver similar performance when running it on a 16 process ...

IEEE2006

Inorganic chemistry calculations using HETV - A vectorized solver for the SO4 2--NO3 --NH4 + system based on the ISORROPIA algorithms

Athanasios Nenes

The reactions and corresponding system of equations for the inorganic SO4 2--NO3 --NH4 + system have been studied with a new heterogeneous partitioning code, HETV. The code is based on the algorithms of ISORROPIA (Nenes et al., Aquat. Geochem. 4 (1998) 123 ...

Elsevier Ltd2003

A parallel implementation of NEC for the analysis of large structures

Marcos Rubinstein, Abraham Rubinstein

We present a new, parallel version of the numerical electromagnetics code (NEC). The parallelization is based on a bidimensional block-cyclic distribution of matrices on a rectangular processor grid, assuring a theoretically optimal load balance among the ...

2003

On parallel computation of blood flow in human arterial network based on 1-D modelling

Alfio Quarteroni, Luca Formaggia

Parallel computation of blood flow in a 1D model of human arterial network has been carried out employing a Taylor Galerkin finite element method. Message passing interface libraries have been used on Origin 2000 SGI machine. A Greedy strategy for load-dis ...

Springer-Verlag2003

Transparent Adaptive Parallelism on NOWs using OpenMP

Willy Zwaenepoel

We present a system that allows OpenMP programs to execute on a network of workstations with a variable number of nodes. The ability to adapt to a variable number of nodes allows a program to take advantage of additional nodes that become available after i ...

1999

OpenMP on Networks of SMPs

Willy Zwaenepoel

In this paper, we present the first system that implements OpenMP on a network of shared-memory multiprocessors. This system enables the programmer to rely on a single, standard, shared-memory API for parallelization within a multiprocessor and between mul ...

1999

Sirocco: cost-effective fine-grain distributed shared memory

Babak Falsafi, James Richard Larus, David Wood

Software fine-grain distributed shared memory (FGDSM) provides a simplified shared-memory programming interface with minimal or no hardware support. Originally software FGDSMs targeted uniprocessor-node parallel machines. This paper presents Sirocco, a fam ...

1998

G2DEM: A parallel two-dimensional electromagnetic PIC code for the study of electron-cyclotron instabilities of relativistic electron beams in cylindrical cavities

Kurt Appert, Trach-Minh Tran

A two-dimensional PIC code aimed at the investigation of electron-cyclotron beam instabilities in gyrotrons and their effects on the beam quality is presented, The code is based on recently developed techniques for handling charge conservation and open bou ...

1997

Effects of electron-cyclotron instabilities on gyrotron beam quality

Kurt Appert, Trach-Minh Tran

A two-dimensional PIC code aimed at the investigation of electron-cyclotron beam instabilities in gyrotrons and their effects on the beam quality is presented. The code is based on recently developed techniques for handling charge conservation and open bou ...

1997

Parallel implementation of a distinct element method for granular media simulation on the Cray T3D

Thomas Liebling, Jean-Albert Ferrez, Didier Müller

An efficient implementation of Cundall's model on the Cray T3D massively parallel computer is presented. This model is used to simulate granular media where every grain is identified separately, generating very time-consuming simulations. First, we show a ...

1996

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