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<p style="margin-top:0;margin-bottom:0">Hi Roland,</p>
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<p style="margin-top:0;margin-bottom:0">Thanks for the reply. I completely re-installed and compiled ETK and tried to run qc0 using this command:<br>
<br>
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<div>./simfactory/bin/sim create-run qc0 \</div>
<div> --parfile=par/qc0-mclachlan.par --procs=2 --num-threads=1 --ppn-used=2</div>
<br>
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<p style="margin-top:0;margin-bottom:0">The program runs only for a moment before I get a new error (attached). I'm not sure how to interpret this, could you take a look?</p>
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<p style="margin-top:0;margin-bottom:0">Much appreciated!</p>
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<div dir="ltr">Chad Henshaw<br>
Georgia Institute of Technology - Physics<br>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Roland Haas <rhaas@illinois.edu><br>
<b>Sent:</b> Tuesday, October 2, 2018 8:20:02 AM<br>
<b>To:</b> Gomard-Henshaw, Chad<br>
<b>Cc:</b> ian.hinder@aei.mpg.de; Einstein Toolkit Users<br>
<b>Subject:</b> Re: [Users] Issue running the default qc0-mclachlan.par</font>
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<div class="PlainText">Hello Chad,<br>
<br>
that information can be read out of eg the RunScript that you can find<br>
in simulations/XXX/output-0000/SIMFACTORY/RunScript or (the default<br>
value anyway) from <br>
<br>
simfactory/bin/sim print-mdb-entry $(simfactory/bin/sim whoami | awk '{print $NF}') | grep threads<br>
max-num-threads = 12<br>
num-threads = 6<br>
<br>
You can also force the issue by using:<br>
<br>
<br>
./simfactory/bin/sim create-run static_tov --parfile=par/static_tov_small_short.par --procs=2 --num-threads=1 --ppn-used=2 --walltime=8:0:0<br>
<br>
which uses 2 threads in total (procs=2) with 1 thread per MPI rank (num-threads=1) and makes simfactory believe that there are 2 cores present (ppn-used=2). This results in 2 MPI ranks with 1 thread each.<br>
<br>
Yours,<br>
Roland<br>
<br>
> Hi Ian,<br>
> <br>
> <br>
> Thanks for replying. This didn't work for me, but I understand your logic. Is there a way that I can determine how many threads per process my simfactory is configured for? That way I should be able to specify the exact # of procs right?<br>
> <br>
> <br>
> Thanks!<br>
> <br>
> <br>
> --<br>
> <br>
> Chad Henshaw<br>
> Georgia Institute of Technology - Physics<br>
> <br>
> <br>
> ________________________________<br>
> From: ian.hinder@aei.mpg.de <ian.hinder@aei.mpg.de><br>
> Sent: Monday, October 1, 2018 5:06:24 PM<br>
> To: Gomard-Henshaw, Chad<br>
> Cc: Einstein Toolkit Users<br>
> Subject: Re: [Users] Issue running the default qc0-mclachlan.par<br>
> <br>
> <br>
> <br>
> On 28 Sep 2018, at 18:48, Gomard-Henshaw, Chad <cgomard@gatech.edu<mailto:cgomard@gatech.edu>> wrote:<br>
> <br>
> Hello,<br>
> <br>
> When running the default qc0 simulation, I get an error (see attached). This was run using the following command in the windows linux subshell:<br>
> <br>
> ./simfactory/bin/sim create-run qc05 \<br>
> --parfile=par/qc0-mclachlan.par<br>
> <br>
> <br>
> The simulation runs for about an hour before aborting; I get partial output files but only with two data points. Can you please advise on how to address this issue?<br>
> <br>
> Hi,<br>
> <br>
> We should have a FAQ... You need to run on at least two processes, due to internal limitations in the code. So add<br>
> <br>
> --procs 2<br>
> <br>
> to your create-run command line.<br>
> <br>
> [I don't know exactly how your machine is configured in simfactory; if it is configured to use more than one thread per process, then you need to use enough "--procs" (which really means "threads") that at least two MPI processes are used.]<br>
> <br>
> --<br>
> Ian Hinder<br>
> <a href="https://ianhinder.net">https://ianhinder.net</a><br>
> <br>
<br>
<br>
<br>
-- <br>
My email is as private as my paper mail. I therefore support encrypting<br>
and signing email messages. Get my PGP key from <a href="http://pgp.mit.edu">http://pgp.mit.edu</a> .<br>
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