PartMC: Particle-resolved Monte Carlo code for atmospheric aerosol simulation

Version 2.4.0
Released 2017-02-14


Copyright (C) 2005-2017 Nicole Riemer and Matthew West
Portions copyright (C) Andreas Bott, Richard Easter, Jeffrey Curtis, and Jian Tian
Licensed under the GNU General Public License version 2 or (at your option) any later version.
For details see the file COPYING or


Required dependencies:

Optional dependencies:


  1. Install cmake and NetCDF (see above). The NetCDF libraries are required to compile PartMC. The netcdf.mod Fortran 90 module file is required, and it must be produced by the same compiler being used to compile PartMC.

  2. Unpack PartMC:

    tar xzvf partmc-2.4.0.tar.gz
  3. Change into the main PartMC directory (where this README file is located):

    cd partmc-2.4.0
  4. Make a directory called build and change into it:

    mkdir build
    cd build
  5. If desired, set environment variables to indicate the install locations of supporting libraries. If running echo $SHELL indicates that you are running bash, then you can do something like:

    export NETCDF_HOME=/
    export MOSAIC_HOME=${HOME}/mosaic-2012-01-25
    export SUNDIALS_HOME=${HOME}/opt
    export GSL_HOME=${HOME}/opt

    Of course the exact directories will depend on where the libraries are installed. You only need to set variables for libraries installed in non-default locations, and only for those libraries you want to use. Everything except NetCDF is optional.

    If echo $SHELL instead is tcsh or similar, then the environment variables can be set like setenv NETCDF_HOME / and similarly.

  6. Run cmake with the main PartMC directory as an argument (note the double-c):

    ccmake ..
  7. Inside ccmake press c to configure, edit the values as needed, press c again, then g to generate. Optional libraries can be activated by setting the ENABLE variable to ON. For a parallel build, toggle advanced mode with t and set the CMAKE_Fortran_COMPILER to mpif90, then reconfigure.

  8. Optionally, enable compiler warnings by pressing t inside ccmake to enable advanced options and then setting CMAKE_Fortran_FLAGS to:

    -O2 -g -fimplicit-none -W -Wall -Wconversion -Wunderflow -Wimplicit-interface -Wno-compare-reals -Wno-unused -Wno-unused-parameter -Wno-unused-dummy-argument -fbounds-check
  9. Compile PartMC and test it as follows. Some tests may fail due to bad random initial conditions, so re-run the tests a few times to see if failures persist.

    make test
  10. To run just a single set of tests do something like:

    ctest -R bidisperse   # argument is a regexp for test names
  11. To see what make is doing run it like:

    VERBOSE=1 make
  12. To run tests with visible output or to make some plots from the tests run them as:

    cd test_run/emission
    ./            # similarly for other tests
    gnuplot -persist plot_species.gnuplot # etc...
  13. To run full scenarios, do, for example:

    cd ../scenarios/1_urban_plume


The main partmc command reads .spec files and does the run specified therein. Either particle-resolved runs, sectional-code runs, or exact solutions can be generated. A run produces one NetCDF file per output timestep, containing per-particle data (from particle-resolved runs) or binned data (from sectional or exact runs). The extract_* programs can read these per-timestep NetCDF files and output ASCII data (the extract_sectional_* programs are used for sectional and exact model output).