Advice on "mini" Beowulf cluster
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Miska Le Louarn lelouarn at eso.orgMon Feb 4 00:05:42 PST 2002
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> > Matrices multiply of 10000 can easily fit on one machine. Have you > looked at 4-way SMPs ? > Scalapack is "dense", you will be fine with Fast ethernet, specially > for a small number of nodes. Don't use a tiny blocksize and you won't > produce much traffic (rule of thumb: use the optimal blocksize > computed by ATLAS and try 1x, 2x, 3x, ...). Those machines seem to be way more expensive than a few PCs. Yes, I am not too concerned about the matrix multiplication in fact. However, the SVD is a n^3 process and that takes a *Lot* of memory... I was not sure if the oparation was network intensive too. I made some simple tests on just a few PCs which tended to show that it was not. Thanks for the confirmation. Ciao, Miska -- * Miska Le Louarn, PhD Phone: (49) 89 320 06 908 * * European Southern Observatory FAX : (49) 89 320 23 62 * * Karl Schwarzschild Str. 2 e-mail: lelouarn at eso.org * * D-85748 Garching http://www.eso.org/~lelouarn * * Germany *
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