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Pivot threshold for getrf fcns

Ben_Held
Beginner
‎02-24-2016 04:04 AM
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Is there any documentation that explains that this threshold is?  Is there any external control?  We are seeing far more pivoting using these functions that our own code.

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VipinKumar_E_Intel
Employee
‎02-25-2016 08:42 PM
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Hi,

There isn't any threshold in getrf. The algorithm is just looking for the maximal element in a column and places it to diagonal before factorizing this column.

 

--Vipin

 

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