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Modify MKL_PARDISO_PIVOT

Javi_Dopazo
Beginner
‎09-15-2023 09:07 AM
5,216 Views

Could someone help me by telling me how I can modify the function MKL_PARDISO_PIVOT

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AryanK_Intel
Employee
‎12-21-2023 09:38 PM
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Hi,

 

Sorry for the delay in response.

 

Sparse direct solvers like LAPACK and known variants don't employ pivoting strategies for symmetric positive matrices. MKL Pardiso also avoids analyzing pivots for performance when dealing with such matrices (mtype=2). 

For mtype=2 (symmetric positive-definite) and mtype=4 (complex and Hermitian positive definite), oneMKL Pardiso utilizes Cholesky factorization without pivoting. Since that setting iparm(56) = 1 is ignored for these matrix types.

 

Thanks & Regards,

Aryan. K.


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Javi_Dopazo
Beginner
‎12-22-2023 12:46 AM
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Thank you.

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AryanK_Intel
Employee
‎12-22-2023 01:47 AM
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Hi,


In case you run into any other issues please feel free to create a new thread.


Thanks & Regards,

Aryan.


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