Greetings to all.

I've been having some problems running the GW150914 simulation. When following the tutorial on " https://einsteintoolkit.org/gallery/bbh/cr.html " , I run into problems when running the parfile, specifically when running 

simfactory/bin/sim create-submit GW150914_28 --define N 28 --parfile par/GW150914/GW150914.rpar --procs 128 --walltime 24:00:00

This leads to the error
Parameter file: /home/enzo/Cactus/par/GW150914/GW150914.rpar
Skeleton Created
Job directory: "/home/enzo/simulations/GW150914_28"
Executable: "/home/enzo/Cactus/exe/cactus_sim"
Option list: "/home/enzo/simulations/GW150914_28/SIMFACTORY/cfg/OptionList"
Submit script: "/home/enzo/simulations/GW150914_28/SIMFACTORY/run/SubmitScript"
Run script: "/home/enzo/simulations/GW150914_28/SIMFACTORY/run/RunScript"
Parameter file: "/home/enzo/simulations/GW150914_28/SIMFACTORY/par/GW150914.rpar"
Assigned restart id: 0 
Error: Too many nodes specified: nodes=16 (maxnodes is 1)
Aborting Simfactory.

I am inclined to believe this is because I am running it on my own laptop, but I would nonetheless like to know exactly what does that error mean and if I can fix it somehow.

I would really appreciate your help, thank you :)

Best regards,
Enzo