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Re: [Getfem-users] some questions on sparse matrix operations on gmm++
From: |
Ronan Perrussel |
Subject: |
Re: [Getfem-users] some questions on sparse matrix operations on gmm++ |
Date: |
Tue, 14 Jun 2011 09:08:42 +0200 |
User-agent: |
Internet Messaging Program (IMP) H3 (4.3.5) |
Dear Umut,
I have partial answers to your questions.
+ Is there a way to get the triplet data of a sparse, say csr
matrix, directly from gmm++, or do I have to iterate over the
non-zeros of the matrix, I am searching for a method like row_data,
col_data, value_data or so, are these implemented transparently to
the user? I would like to get these 3 arrays.
gmm::csr_matrix< Scalar > MM;
row_data -> MM.jc
col_date -> MM.ir
value_data -> MM.pr
+ There is a mumps interface in the source code of the library? Are
there any starter examples on how to use this interface?
I used it some time ago. At this time, it was explained in the user
documentation. I cannot provide you more information.
Best regards,
Ronan