[Users] Problems running BBH example

[Roland Haas]

Hello Krishna,

The abort is triggered by the SystemTopology / HWLOC thorns having
encountered a processor / core / PU combination that they did not
expect. Is there anything in the stdout file?

I am not quite familiar enough with hwloc in particular to really make
a good suggestion.

You can certainly try and remove 

SystemTopology

and 

hwloc 

from your parameter file's ActiveThorn line(s). This will avoid the
issue but may, depending on your cluster (mis-)configuration, yield
non-ideal speeds (basically you must ensure manually that there is at
most one thread per CPU core). Carpet has an option

Carpet::set_cpu_affinity = "yes"

that probably gives you almost all you would get from SystemTopology so
you can try that one instead.

Can you provide details on the cluster / CPU of the cluster?

Yours,
Roland

> Hello,
> 
> I've downloaded and configured the Einstein Toolkit on my desktop,
> but I'm having an issue when I try to run the BBH example provided
> here
> <https://urldefense.com/v3/__https://einsteintoolkit.org/gallery/bbh/index.html__;!!DZ3fjg!-XFQ4fosXbEkKSRrQrEdwsGzgJCJQRkES951alRCNP9y0etbO9hlBmHws6LOl8wf57_50ErWvtxsYc05tAcu$
> > and the BNS simulation from here
> > <https://urldefense.com/v3/__https://einsteintoolkit.org/gallery/bns/index.html__;!!DZ3fjg!-XFQ4fosXbEkKSRrQrEdwsGzgJCJQRkES951alRCNP9y0etbO9hlBmHws6LOl8wf57_50ErWvtxsYWDkk_Pq$
> > >. The job finishes in an instant, producing the attached error
> > >file. (I'm using the
> command "simfactory/bin/sim create-submit GW150914_28 --define N 28
> --parfile par/GW150914/GW150914.rpar --procs 24 --walltime 24:00:00")
> 
> There seems to be an issue with the 'num_pus' to 'num_cores' ratio in
> the "system_topology.cc" file, but the error oddly persists even when
> I manually equate them, or cut out line 471 altogether. This error
> does not appear when I run the tov_ET example or the HelloWorld one.
> I'm also able to run this mini BNS tutorial
> <https://urldefense.com/v3/__https://www.youtube.com/watch?v=3euS5yMBFmI__;!!DZ3fjg!-XFQ4fosXbEkKSRrQrEdwsGzgJCJQRkES951alRCNP9y0etbO9hlBmHws6LOl8wf57_50ErWvtxsYZtrb0UG$
> > without any issues, so I'm a bit baffled. I've attached my .ini
> > file and the .cc file along with the error file in case it helps.
> Please take a look and let me know if I'm missing something obvious.
> 
> PS: My PC has 128GB of memory, a 13900K(24C/32T) processor and 1TB of
> storage.
> 
> Regards,
> Praveer



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