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There are some additional requirements for the simulations packages, mostly python dependencies that are so ubiquitous in scientific computing environments that it is more difficult for users for us to provide new versions than it is to supply them with the stack. These requirements are (there is some overlap here with the basic stack requirements):
- python 2.7 or 3.6
- numpy - available from conda
- scipy - available from conda
- astropy - available from conda
- matplotlib - available from conda
- sqlalchemy - available from conda
- Cython (note: even if using the stack-supplied Anaconda distribution, you should run conda install cython to install the Sims stack)- available from conda
- cmake - available from conda if requiredcmake
- gfortran (which is necessary to build the ephemeris-generating software package oorb)
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- On linux systems, gfortran is probably preinstalled. Otherwise, you can get gfortran binaries from https://gcc.gnu.org/wiki/GFortranBinariesMacOS or (on a mac) from the homebrew distribution (brew install gcc).
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The recommended (simplest) approach is to use the newest LSST software stack, and use the LSST-provided version miniconda python. (See here if you want to use your own python).
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