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are LAPACK and scaLAPACK can help me to solve my problems ?

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are LAPACK and scaLAPACK can help me to solve my problems ?

Postby sameh » Tue Jan 25, 2005 6:14 am

Hi my friends

I saw some complex routines in LAPACK but
Iam interested in matrix manipulations in terms of :

1) calculations of distance matrix.
2) inverse of a matrix.
3) mean & standard deviation of a matrix.
4) normalisation.
..........etc.

Is LAPACK or scaLAPACK with MPI can help me to solve this problems ?
sameh
 
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Joined: Mon Jan 24, 2005 12:05 pm

Postby Julien Langou » Fri Feb 04, 2005 11:44 am

> 1) calculations of distance matrix.

no, LAPACK provide most of the building blocks to produce an algorithm to solve this problem but does not provide any algorithm to solve this problem

> 2) inverse of a matrix.

yes, xGETRF + xGETRI where x stands for the precision (S, C, D or Z)

> 3) mean & standard deviation of a matrix.

no.

> 4) normalisation.

no.
Julien Langou
 
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Location: Denver, CO, USA

Re:

Postby animechords » Fri Aug 06, 2010 8:13 pm

Julien Langou wrote:> 1) calculations of distance matrix.

no, LAPACK provide most of the building blocks to produce an algorithm to solve this problem but does not provide any algorithm to solve this problem

> 2) inverse of a matrix.

yes, xGETRF + xGETRI where x stands for the precision (S, C, D or Z)

> 3) mean & standard deviation of a matrix.

no.

> 4) normalisation.

no.


so, it's mean that we must build an algorithm to find a normalization ourself? well, I will try it, but need to learning first..
animechords
 
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