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pierangelo_f_

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02-16-2010
12:11 AM

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matrix pivots from pardiso

How can I get from PARDISO the max/min (or all) pivots after the factorisation of the matrix?

It's possible or not?

Thanks

2 Replies

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Gennady_F_Intel

Moderator

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02-16-2010
06:10 AM

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There are no such opportunity in the current version. F*or spd matrixes (mtype==2,4), when iparm*(30), then if the solver detects a zero or negative pivot for these matrix types, the factorization is stopped, PARDISO returns immediately with an error (*error *= -4) and *iparm*(30) contains the number of the equation where the first zero or negative pivot is detected.

--Gennady

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Paweł_J_

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05-22-2015
04:59 AM

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This question is about 5 years old, so maybe there where some changes and getting from PARDISO all zero pivots after factorization phase is now possible?

I'm aware of iparm(30) for matrices (mtype==2,4), what about matrix (mtype=-2) ?

thx in advance

Pawel J.

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