<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:12pt">Hello Mike,<br><br>I would guess, as perhaps others might as well, that it is trying to solve a million x million dense matrix.<br>Are you sure you have removed the zeroes and given it a sparse matrix ?<br><br>Paresh<br><div><span><br></span></div><div><br></div> <div style="font-family: times new roman, new york, times, serif; font-size: 12pt;"> <div style="font-family: times new roman, new york, times, serif; font-size: 12pt;"> <div dir="ltr"> <font face="Arial" size="2"> <hr size="1"> <b><span style="font-weight:bold;">From:</span></b> Hui Zhang <mike.hui.zhang@hotmail.com><br> <b><span style="font-weight: bold;">To:</span></b> mumps-users@listes.ens-lyon.fr; PETSc users list <petsc-users@mcs.anl.gov> <br><b><span style="font-weight: bold;">Cc:</span></b> Hui Zhang <mike.hui.zhang@hotmail.com> <br> <b><span
style="font-weight: bold;">Sent:</span></b> Saturday, February 23, 2013 9:51 AM<br> <b><span style="font-weight: bold;">Subject:</span></b> [mumps-users] MUMPS error<br> </font> </div> <br>
Error reported by MUMPS in numerical factorization phase: Cannot allocate required memory 70397575 megabytes<br><br>The required memory is too large. Is that normal? I'm solving a Helmholtz equation on 100^3 mesh partitioned to 4^3 processors.<br><br><br><br><br> </div> </div> </div></body></html>