Dear Jakub,
Although extending your simulation is possible by rewriting XML files by hand, I would recommend you to set up a new simulation with larger value of SWEEPS and run it from the first.
Indeed, if you want to reduce the errorbar significantly (say, by factor 10), then you have to increase SWEEPS at least by factor 10^2=100. In such a situation, the contribution from the previous run to the final statistics (as well as the total CPU time) is negligible. Thus practically you will lose nothing by re-running the simulation from the first.
Best, Synge
From: Matthias Troyer troyer@phys.ethz.ch Date: Wed, 28 Jan 2009 09:31:00 -0800
On 27 Jan 2009, at 03:21, Jakub Zakrzewski wrote:
Hello,
I am fresh, just trying ALPS, so question may be trivial. How to "extend a simulation" in QMC (worm). Info in wiki: http://alps.comp-phys.org/mediawiki-1.9.3/index.php/Runningsays to increase the amount of sweeps (which I did) and set a simulation status ti running from finished. But where to set it? Example -- ... is missing...
If your parameters are called parms, then parameter2xml creates a file parms.in.xml, and the simulation creates a file parms.out.xml . The latter is the file to edit.
Matthias