[Users] Problem with tutorial

[Roland Haas]

Hello Julia,

Very good. Thanks for letting me know.

Yours,
Roland

> [CAUTION: Non-UBC Email]
> 
> Dear Roland,
> Thank you very much for your help. Yes, the tutorial is working for me now.
> Best wishes,
> Julia
> ________________________________
> Von: Roland Haas <rhaas at mail.ubc.ca>
> Gesendet: Donnerstag, 20. November 2025 00:14
> An: Julia Speicher via Users <users at einsteintoolkit.org>
> Cc: Julia Speicher <j.i.speicher at uva.nl>
> Betreff: Re: [Users] Problem with tutorial
> 
> Hello Julia,
> 
> Sorry for the delay, but this turned into a bit more of a rabbit hole
> than expected.
> 
> Please give this another try on the tutorial server. You will have to,
> unfortunately, start from scratch to get new versions of the simfactory
> machine description files.
> 
> If you like to you can also try and update only Simulation Factory
> using:
> 
> cd repos/simfactory2
> git pull
> 
> then remove your configs/sim directory to force a compilation from
> scratch using the new files.
> 
> On you laptop things probably work fine, at least as long as there is
> no pro-compiled version of ADIOS2 installed already. On a cluster with
> ADIOS2 installed you may need to use branch rhaas/mpilibs of
> ExternalLibraries/ADIOS2 which we hope to very soon merge into
> ExternalLibraries/ADIOS2's master branch.
> 
> Please let me know if this solves the issue for you.
> 
> Just in case (though I suspect you are aware) there is the group of
> Philipp Moesta at UVA that uses the EinsteinToolkit extensively and may
> be able to provide some help as well.
> 
> Yours,
> Roland
> 
> > Hello Julia,
> >  
> > > I am new to the Einstein toolkit, so I wanted to go through the tutorial first. Unfortunately, I do not get beyond the step of building the Einstein toolkit:
> > > %%bash
> > > ./simfactory/bin/sim build -j2 --thornlist thornlists/einsteintoolkit.th
> > >
> > > I attached the output as a text file due to its length. The output ends with:
> > > /usr/bin/ld: /usr/local/lib/../lib/libadios2_cxx11_mpi.so.2.10: error adding symbols: DSO missing from command line
> > > collect2: error: ld returned 1 exit status
> > > make[1]: *** [/home/j/Cactus/lib/make/make.configuration:150: /home/j/Cactus/exe/cactus_sim] Error 1
> > > make: *** [Makefile:265: sim] Error 2  
> > Hmm, that is a linker error. My guess would be that one needs to
> > explicitly list the C++ bindings for MPI in the linker library list.
> >
> > This should of course work automatically, but clearly is not anymore.
> >  
> > > I am running the web-based tutorial, so I thought just running the
> > > Jupyter notebook cells would suffice (I tried restarting the kernel,
> > > but this did not help).  
> >
> > In particular on the ET maintained tutorial server it should just work.
> > Since it is not, we will have to fix the server and the code.
> >  
> > > Do you know how I could resolve this error?  
> >
> > Let me try and see and get back to you.
> >
> > Yours,
> > Roland
> >  
> 
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