Search found 3 matches

by Cielaah
Fri Dec 14, 2018 8:04 am
Forum: User discussion
Topic: Matrix overflow when using PARILU
Replies: 5
Views: 1459

Re: Matrix overflow when using PARILU

Dear Hartwig, thank you for your response. I did not refer to an overflow for the ParILU preconditioner, but to a - in my point of view - wrong iteration over the CSR data structure. As I wrote in my original post I get the error "error: zero diagonal element in row x!". When analyzing the source of...
by Cielaah
Thu Nov 15, 2018 11:27 am
Forum: User discussion
Topic: Matrix overflow when using PARILU
Replies: 5
Views: 1459

Re: Matrix overflow when using PARILU

Dear Hartwig, thanks for looking into this. I actually want to solve a positive definite matrix, but I can't share it for data security guideline reasons. But like I said, this problem occurs with several matrices. (Another example for this error with a positive definite matrix would be this one: ht...
by Cielaah
Thu Oct 25, 2018 9:19 am
Forum: User discussion
Topic: Matrix overflow when using PARILU
Replies: 5
Views: 1459

Matrix overflow when using PARILU

Hi, I wrote a little application that reads a sparse matrix and an optinal rhs and analyses them with user-input solver and preconditioner parameters. All works well except when I want to use PARILU as preconditioner. When printing the solver information I get an "error: zero diagonal element in row...