Also, with DMRG, you have to set START_DIR to 1 when you restart a simulation. Otherwise, your sweeps will all only be left-to-right, rather than each sweep being a right-to-left then left-to-right. I just thought someone might like to know that. Also, is it possible to get an account for the ALPS website so that I can add information like this to it? I tried going to the create account/login page and it looked like I could only login - not create a new account.
Justin
-----Original Message----- From: comp-phys-alps-users-bounces@phys.ethz.ch on behalf of Justin David Peel Sent: Wed 1/28/2009 2:14 PM To: comp-phys-alps-users@phys.ethz.ch Subject: RE: [ALPS-users] Extending a simulation
However, if you are doing a DMRG simulation, you need to put in the parameter START_SWEEP and set it to the correct number. For example, if at first you ran with 32 states kept for 10 sweeps, you would then set the START_SWEEP parameter to 11 and SWEEPS to like 20. You could also change the number of states kept at this point. If you don't set the START_SWEEP parameter, the simulation will start all over.
-----Original Message----- From: comp-phys-alps-users-bounces@phys.ethz.ch on behalf of Matthias Troyer Sent: Wed 1/28/2009 10:31 AM To: comp-phys-alps-users@phys.ethz.ch Subject: Re: [ALPS-users] Extending a simulation
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/Running says 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