SGI SCSL - multithreaded LAPACK performance

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SGI SCSL - multithreaded LAPACK performance

Postby andyquach » Mon Jul 27, 2015 12:05 am

I have recently been trying to run LAPACK dsyev (matrix diagonalization to find eigenvalues/vectors) with 16 processors on an SGI Origin m/c using the SGI SCSL library compiled with multithreaded routines.

The performance is dismal and I cannot find any information as to what efficiencies I could expect using parallelized LAPACK routines.

Any experience/feedback anyone has in this regard would be much appreciated.
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