The OPAL Discussion Forum

[Chris Rogers <chris.rogers AT stfc.ac.uk>]

Hi Dou,
Do you have a lattice file that I can look at? I will try to reproduce 
the issue.

Many thanks,
Chris

On 14/07/2023 07:53, Snuverink Jochem wrote:
> Hi Dou
>
> That looks like a bug to me. But has to be investigated more properly by 
> the developer who wrote that.
>
> The easiest solution is probably to Rebuild with cmake option:
>
> -DCMAKE_BUILD_TYPE=Release
>
> That will disable the asserts.
>
> Best regards,
> Jochem
>
>
> ------------------------------------------------------------------------
> *Von:* opal-request AT lists.psi.ch <opal-request AT lists.psi.ch> im Auftrag 
> von Calvo Portela, Pedro <Pedro.Calvo AT ciemat.es>
> *Gesendet:* Freitag, 14. Juli 2023 08:30
> *An:* opal <opal AT lists.psi.ch>; Dou Guoliang <douguoliang AT impcas.ac.cn>
> *Betreff:* Re: [Opal] The problem of the command "DUMPEMFIELDS" and 
> "DUMPFIELDS"
>
> Hi Dou
>
>
> I don't know the reason of your error with Dumpfields. However, 
> Dumpfields and DumpEMFields have been modified in the last to release 
> version of OPAL. Please check the following links:
>
> https://gitlab.psi.ch/OPAL/src/-/issues/651 
> <https://gitlab.psi.ch/OPAL/src/-/issues/651>
>
> https://gitlab.psi.ch/OPAL/src/-/issues/691 
> <https://gitlab.psi.ch/OPAL/src/-/issues/691>
>
>
> In one of those issue, we fix the unit problem that you mention.
>
>
> My suggestion is that you should use the last stable version of OPAL 
> (OPAL-2022.1). Please try to run your simulation with this version and 
> then let me know if your error still there.
>
>
> Best regards
>
> Pedro
>
> ------------------------------------------------
> /Dr. Pedro Calvo Portela
> Unidad de Aceleradores - CIEMAT
> Avenida Complutense 40, Edificio 7
> 28040 Madrid
> //Tel: +34 – 91 496 2554 / ext. 362542/
> /
> /
> ------------------------------------------------------------------------
> *De:* opal-request AT lists.psi.ch <opal-request AT lists.psi.ch> en nombre de 
> Dou Guoliang <douguoliang AT impcas.ac.cn>
> *Enviado:* jueves, 13 de julio de 2023 17:14
> *Para:* opal
> *Asunto:* [Opal] The problem of the command "DUMPEMFIELDS" and "DUMPFIELDS"
>
> Hi ,all
>
> When I use the command "DUMPFIELDS" and "DUMPEMFIELDS" , the *opal_2.4* 
> shows the error */(annex 1)/*:
>
> */_Error> *** Error: _/*
> */_Error> Internal OPAL error: _/*
> */_Error> Assertion 'idx.i < num_gridpx_m - 1' failed. _/*
> */_Error> idx.i = 118, num_gridpx_m - 1 = 118.000000 _/*
> */_Error> in _/*
> */_Error> 
> /afs/psi.ch/user/g/gsell/private/src/OPAL/src/src/Classic/Fields/FM3DH5BlockBase.h, line 163_/*
>
> I have checked my inputfile ,and there is no wrong experssion. The 
> detailed experssion is :
>
> *DUMPEMFIELDS, COORDINATE_SYSTEM = Cartesian, X_START= -0.8, 
> X_STEPS=1601, DX= 0.001, Y_START=-0.25, Y_STEPS=501, DY= 0.001, 
> Z_START=-0.02, Z_STEPS=41, DZ=0.001, T_START=0,T_STEPS=1, DT=0.1 
> ,FILE_NAME="FIELDEM-MAPXYZ.dat";**__***
>
> When I try to split the original output area of*X* into two parts, opal 
> can output the corresponding two parts normally. First change X_STEPS to 
> 117, and then change X_START and X_STPES  to -0.215 and 204.
>
> And I re-ran another cyclotron simulation and got the same error, except 
> */_idx.i _/*changed to 14 .
>
> In addition, I found that the unit of position coordinates of command 
>   "DUMPEMFIELDS" and "DUMPFIELDS" in the opal is defined as meters, but 
> in fact, the table head of the output file shows the unit of position 
> coordinates is millimeter.*/(annex 2)/*
>
> Has anyone met this error?
>
> Best regards,
> Dou
> *
> *
> *
> *
>
>         
> Dou Guoliang
> Institute of Modern Physics
> Chines Academy of Science
> douguoliang AT impcas.ac.cn
>
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