The OPAL Discussion Forum

[Philippe Piot <piot AT nicadd.niu.edu>]

Dear All,

    I am trying to open the attached json file produce from a scan in opal using pyopalTool. Simply doing

--

from opal import load_dataset, filetype
ds = load_dataset('phiscan/', fname='phiscan_samples_0.json')

--

gives the error

--Found 1 json files from 1 optimizers and 0 pareto front files
2020-04-21 19:10:10,208 - opal - ERROR - invalid literal for int() with base 10: 'phiscan'

--

  Thank you for any suggestions. All the best, -- Philippe.

Philippe Piot,
https://www.niu.edu/advanced-accelerator-randd/
Northern Illinois University, Dept of Physics and
Northern Illinois Center for Accelerator & Detector Development
DeKalb, IL 60115, USA
Tel: 815 753 6473, Web:  http://www.physics.niu.edu/physics/

Argonne National Laboratory, Advanced Photon Source
Accelerator System Division

Lemont, IL 60439, USA

Tel: 630 252 2415, Web:  https://www.aps.anl.gov/Accelerator-Systems-Division 

On Tue, Apr 21, 2020 at 6:32 AM Philippe Piot <piot AT nicadd.niu.edu> wrote:

Dear All,

  Does somebody could share an example of an opal input file demonstrating how to scan a parameter (e.g. a solenoid B field) and record some of the beam parameters at the end of the beamline. Right now I am doing this externally (with my own scripts) but I am wondering if this is possible with the sampler feature. Thank you,  -- Philippe.

Philippe Piot,
https://www.niu.edu/advanced-accelerator-randd/
Northern Illinois University, Dept of Physics and
Northern Illinois Center for Accelerator & Detector Development
DeKalb, IL 60115, USA
Tel: 815 753 6473, Web:  http://www.physics.niu.edu/physics/

Argonne National Laboratory, Advanced Photon Source
Accelerator System Division

Lemont, IL 60439, USA

Tel: 630 252 2415, Web:  https://www.aps.anl.gov/Accelerator-Systems-Division 

Attachment: phiscan_samples_0.json
Description: application/json