[aspect-devel] update on memory pbs

[Wolfgang Bangerth]

> Memory should be more or less constant between successive time steps.
> There may be fluctuation within time steps (the solver and
> preconditioners will have to allocate temporary memory that they release
> when they're done, and so do other parts of the program) but at the end
> of each time step we should be back at the same level as what we had at
> the end of the previous time step.

As one more data point: during solution of the Stokes system, the total 
amount of memory for the program (the VIRT column in 'top') goes up from 
7.7 to 8.6 GB, but it drops down to 7.7 GB again at the end of each time 
step.

Best
  W.

-- 
------------------------------------------------------------------------
Wolfgang Bangerth               email:            bangerth at math.tamu.edu
                                 www: http://www.math.tamu.edu/~bangerth/