[Moller_simulation] [EXTERNAL] Installing remoll centrally and running without full remoll checked out

[Wouter Deconinck]

Hi,

I mentioned this in the simulation meeting, but it probably is more
usefully explained in an email.

You can install remoll in a central location (e.g. /usr/local) and run it
from there. For example, the following commands will install remoll
centrally (relevant stuff in blue):
  cmake -Bbuild -DCMAKE_INSTALL_PREFIX=/usr/local .
  make -Cbuild
  make -Cbuild install
Now you can run the command remoll from anywhere (assuming /usr/local/bin
is in your path).

The benefits of this are that you can now more easily run multiple
different jobs without having to copy the entire remoll directory multiple
times. You could create the following directory structure:
.
├── sim1
│   └── myrun1.mac
├── sim2
│   └── myrun2.mac
├── sim3
│   ├── geometry
│   │   └── ...
│   └── myrun3.mac
...

Whereas before you would have to locate the entire geometry etc etc in each
of those directories, you can now just keep the one macro that you are
modifying, and start remoll there. When remoll can't find a file locally,
it will look for it in the central install location. It will still write
output files to the directory you start remoll in (by default at least).

If you do want to change the geometry, you can just copy the geometry
directory there, but you don't need the macros etc.

Cheers,
Wouter
-- 
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