[Beowulf] Strange Behavior

[Mathias Brito]

Hi,

I'm benchmarking my 16 nodes cluster with HPL and I
obtain a estrange result, different of all I ever seen
before. When I send more data with a big N, the
performance is worse than with small values of N. I
used N=5000 with NB=20 and the performance was 3.3GB,
when I send N=10000 with NB=20 i get only 2.1GB. I
don't liked the result, the nodes are athlon xp 1600+
with 512MB RAM, and I think the cluster very slow.
Someone had the same problem and could help me?

Mathias

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Mathias Brito
Universidade Estadual de Santa Cruz - UESC
Departamento de Ciências Exatas e Tecnológicas
Estudante do Curso de Ciência da Computação

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