Hello Mike, I would guess, as perhaps others might as well, that it is trying to solve a million x million dense matrix. Are you sure you have removed the zeroes and given it a sparse matrix ?
Paresh ________________________________ From: Hui Zhang <mike.hui.zhang at hotmail.com> To: mumps-users at listes.ens-lyon.fr; PETSc users list <petsc-users at mcs.anl.gov> Cc: Hui Zhang <mike.hui.zhang at hotmail.com> Sent: Saturday, February 23, 2013 9:51 AM Subject: [mumps-users] MUMPS error Error reported by MUMPS in numerical factorization phase: Cannot allocate required memory 70397575 megabytes The required memory is too large. Is that normal? I'm solving a Helmholtz equation on 100^3 mesh partitioned to 4^3 processors. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20130223/606e666e/attachment.html>
