Dear Patrick and Stephan, Thanks a lot for your kind help.
I managed to run ARTS with atmlab and a timer (Patrick's suggestion) as well as run ARTS directly from the cfile created by ATMLAB (with a Debug mode). I assume this way we have a fair evaluation of the computation time of the ARTS simulation. I already use the "on-the-fly" option to compute the absorption which should be less time consuming than the look-up table (from Patrick's advice). Patrick also mentioned that nothing should be critical if we use standard setting. Stephan, do you have any example of not standard setting (to check if I have an option which increases the computation time of ARTS). I also was successful to compute the Jacobians directly from an arts controlfile. But when I want to copy the output into a matrix to write the values in an ASCII file (following the example TestWfuns.arts: Copy( Ja, jacobian ) I get the error message: Method Copy needs input variable: jacobian I will have a closer look to the users guide and I let you know what is unclear. Thanks a lot again, Best regards, Pauline ----- Météo-France ----- Dr. Pauline Martinet Chercheur CNRM/GMEI/LISA pauline.marti...@meteo.fr Fixe : +33 561079031 ----- Mail original ----- De: "Stefan Buehler" <stefan.bueh...@uni-hamburg.de> À: "Pauline Martinet" <pauline.marti...@meteo.fr> Cc: "Patrick Eriksson" <patrick.eriks...@chalmers.se>, "domenico cimini" <domenico.cim...@imaa.cnr.it>, "francesco deangelis1" <francesco.deangel...@graduate.univaq.it>, "arts users mi" <arts_users.mi@lists.uni-hamburg.de> Envoyé: Lundi 11 Juillet 2016 17:58:37 Objet: Re: Advise concerning ARTS computation speed Dear Pauline, > Could anyone help in explaining what is the function to compute Jacobians > from ARTS alone with atmlab ? There are several example ARTS controlfiles with Jacobians included in the distribution, e.g.: controlfiles/artscomponents/wfuns/TestWfuns.arts controlfiles/classroom_exercises/exe3_jacobian/jacobian.arts You find documentation on each individual ARTS method on the docserver: http://arts.mi.uni-hamburg.de/docserver-trunk/ or if you start the docserver that comes with your ARTS distribution. > When I have the cfile from ARTS, what is the terminal command to execute it > without any matlab interface ? arts jacobian.arts If your arts executable is not in your shell path, you have to give the right path, e.g., ~/arts_build/src/arts jacobian.arts jacobian.arts here is the name of the controlfile. > (it is probably a silly question but I really had troubles to understand how > to use ARTS without > matlab this is why I never used). Have you tried the ARTS user guide (available at radiativetransfer.org)? How to run ARTS is described in Chapter 1. Please let us know if anything there is unclear, so that we can improve the documentation. Running ARTS without Matlab is really easier (and more thoroughly documented) than through the Matlab interface. (But so far lacking the capabilities to run retrievals, of course.) Best wishes, Stefan _______________________________________________ arts_users.mi mailing list arts_users.mi@lists.uni-hamburg.de https://mailman.rrz.uni-hamburg.de/mailman/listinfo/arts_users.mi
