[Mesa-users] Question about running many similar simulations on a cluster

[Connor Jennings]

Hello,
My name is Connor Jennings. I'm a student at UC Berkeley using MESA in a
research project. I want to run a lot MESA (I'm using version r15140)
simulations for RR Lyrae stars on the Savio cluster (which runs on Linux)
here at Berkeley, and I have a few questions about the best way to do this.
Our plan is to generate a grid of initial parameters, and then run a
simulation for each space on the grid so we can run each simulation in
parallel. My current understanding is that we would have to create a new
folder for each simulation, even though the only thing different in the
folders would be a few lines in the inlist file. Is there a more efficient
way to do this, or do we expect to need to create 1000 folders for 1000
simulations, etc. ?
Additionally, Savio has the ability to run multiple programs on the same
node, so I am wondering how MESA's speed scales with its number of cores.
I.e. If I have access to two nodes each with 20 cores each and need to run
10 simulations, would it be faster to run 1 simulation on each node using
all 20 cores, and do that 5 times, or to run 5 simulations per node using 4
cores each and do that once?
Thank You,
Connor Jennings
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