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Inconsistent results with Pardiso

Rawlins__David
Beginner
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Hi,

I'm getting inconsistent results from one run to another with Pardiso and the same input file. I'm assuming it's due to an ill conditioned matrix, but I'm wondering if there may be something else that may be causing the inconsistent results.

Thanks,

Dave
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ArturGuzik
Valued Contributor I
557 Views
Hi,

I'm getting inconsistent results from one run to another with Pardiso and the same input file. I'm assuming it's due to an ill conditioned matrix, but I'm wondering if there may be something else that may be causing the inconsistent results.

Thanks,

Dave
Dave,

what do you mean by inconsistency? I saw some posts from people expecting bit-by-bit identical results, which for Pardiso you won't get.
In general, if the matrix is ill-conditioned, you should go along SVD path and not Pardiso.

A.
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Rawlins__David
Beginner
557 Views
Quoting - ArturGuzik
Dave,

what do you mean by inconsistency? I saw some posts from people expecting bit-by-bit identical results, which for Pardiso you won't get.
In general, if the matrix is ill-conditioned, you should go along SVD path and not Pardiso.

A.

Thanks, I'll look into SVD.

Dave
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