The OPAL Discussion Forum

["Adelmann Andreas (PSI)" <andreas.adelmann AT psi.ch>]

Hello Simon there is no such thing like a global in OPAL.

You would need to use standard output together with VALUE for the 

Output of Expressions (see 10.4.5 in the manual). Then you would need

to parse the standard output file. 

Cheers A

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Dr. sc. math. Andreas (Andy) Adelmann
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On 18 Mar 2021, at 17:29, Dr. Simon Friederich <s.friederich AT uni-mainz.de> wrote:

Dear OPAL-Team,

I want to save all custom variables/parameters into a file after a simulation has finished.
Then I can look up e.g. the set quadrupole strength (I set this via a variable) for the specific run.

Do you think this is possible using the OPAL-syntax and, if so, can you suggest something? (In a python session i would properly do this using the "globals()" command. I was thinking of having a python-script reading all ".in"-files and filter their content for "REAL", "REAL VECTOR", and "STRING".)

The best would be to do this after "ENDTRACK;" because sometimes I overwrite variables inbetween (e.g. the zstart-parameter when using imported distributions; Thanks again to Christof for this hint, it's really handy).

Best regards
Simon

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Dr. Simon Friederich
Helmholtz-Institut Mainz | Insitut für Kernphysik
Kollaboration ACID       | B
Johannes Gutenberg-Universität Mainz
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55128 Mainz, Deutschland

Tel.: +49 (0)6131 39-23160
E-Mail: s.friederich AT uni-mainz.de