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Pardiso behaviour having right hand side "B" all zero.

Omer_Riaz
Beginner
114 Views
I am using PARDISO solver for my code. I am having problem if my right hand side is all zero. For all zero B the solver stuck in solution phase for inifite time and niether it exit from solution phase nor it gives error. Does PARDISO works with all zero B? Is this known problem in PARDISO or do I have to set some parameters to aviod this?
Thank you
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2 Replies
mecej4
Black Belt
114 Views
This is a guess, since there is nothing specific to explore:

Pardiso allows iterative refinement, and this can be a problem in the special case where the solution is a vector of zeroes.

Please show a short example of the problem.
Gennady_F_Intel
Moderator
114 Views
yes, short example would be very nice to have.
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