Mathematica sometimes falters when dealing with (very) large documents. This problem is likely exacerbated under low-memory conditions. If you have not already set $HistoryLength to some low value, then perhaps that would help. I usually use a value of 10; if your iterative process does not rely on previous results, you might try zero.
I hope this helps; but it may not!
On Sun, Sep 23, 2012 at 12:01 AM, Marco Gabiccini <firstname.lastname@example.org>wrote:
> Dear all, > > I am running a cascade of optimizations using FindMinimum (basically I > made a wrapper to FindMinimum to use it for Extended Kalman Filtering) > and in order to keep track of the optimization progress I print some > helpful messages (beside writing some files with the actual results). I > end up having a long list of output cells. > > The problem comes when I try to delete all output by using the > correspondent command in the menu (or even selecting the output cells > and delete them manually). Mathematica freezes and sometimes it closes. > This problem is really annoying. Of course saving the .nb file with the > output on is not feasible (around 350 Mb of dimension). > It there a workaround? > > Thanks, > > Marco > > Marco Gabiccini, PhD > Assistant Professor of Applied Mechanics and Robotics > Dept. of Mechanical, Nuclear and Production Engineering > University of Pisa > Via Diotisalvi 2, 56122 Pisa PI > Italy >