Menu

Discussion Forum

New Discussion
Filter

Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.

Out of memory during incomlete LU factorization

Posted Sep 1, 2010, 10:51 a.m. EDT 0 Replies

Devin Baillie
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

I am trying to solve a large 3D problem using the RF module (in COMSOL 4.0a). I'm on a WinXP 64bit machine with 32GB RAM. The mesh consists of 371244 tetrahedral elements, with a cubic geometry shape order. I'm trying to use the iterative GMRES solver, but I run out of memory during the incomplete LU factorisation. Is there any way to decrease the memory requirements for the incomplete LU factorization? Will increasing the number of iterations taken by the Incomplete LU solver help with this? Or changing to the SPOOLES solver?

If you need more details about my model to offer advice, let me know.

Thanks
0 Replies Last Post Sep 1, 2010, 10:51 a.m. EDT
COMSOL Moderator

Hello Devin Baillie

Your Discussion has gone 30 days without a reply. If you still need help with COMSOL and have an on-subscription license, please visit our Support Center for help.

If you do not hold an on-subscription license, you may find an answer in another Discussion or in the Knowledge Base.

Note that while COMSOL employees may participate in the discussion forum, COMSOL® software users who are on-subscription should submit their questions via the Support Center for a more comprehensive response from the Technical Support team.

Suggested Content