[petsc-users] [mumps-users] MUMPS error

[paresh murthy]

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.
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