[petsc-users] Matrix stored on many machines, filled by one process

[Jed Brown]

On Thu, May 19, 2011 at 09:54, Bartłomiej W <bartlomiej.wach at yahoo.pl>wrote:

> I wanted to try a 64 bit system out and got the ubuntu with 2 GB RAM and
> additional 11 GB swap and still I get memory allocation error like this:
>
> [0] Maximum memory PetscMalloc()ed 2,514,564,304 OS cannot compute size of
> entire process


This is in PetscMallocComputeLog() and is not really an error. It's really
intended to be called when your program completes since the "maximum usage"
is calculated when objects are destroyed instead of when they are allocated.
(This could be handled better.) What is your code doing and what options are
you running with?
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