Summit (OLCF)

Summit is massive supercomputer at ORNL with 6 NVIDIA V100 GPUs and 2 IBM Power9 CPUs per node. Apply for resources on Summit through the INCITE, ALCC, or director’s discretionary programs.

Summit does not support container execution at this time. glotzerlab-software instead provides a build script and a module environment to create an equivalent software stack.

First, clone the glotzerlab-software repository:

$ git clone
$ cd software

If you already have a clone, update it:

$ cd software
$ git pull origin trunk

Per OLCF policies, you should install your software in NFS under /ccs/proj/. Set the installation root directory to /ccs/proj/your-project/glotzerlab-software to share a single software installation with your project. Include your username in the directory name (e.g. /ccs/proj/your-project/glotzerlab-software-$USER}) to install a user-specific set of software.

Build the software environment and install it into the root:

$ script/summit/ /ccs/proj/your-project/glotzerlab-software
... compiling software will take several minutes ...

Activate the environment with:

$ source /ccs/proj/your-project/glotzerlab-software/

The summit environment is intended to execute HOOMD simulations. Compared to the containerized environments, the following packages are missing because they do not yet support the ppc64le architecture:

  • embree
  • fresnel

The following packages are missing because they do not build on summit:

  • jupyter
  • matplotlib
  • pandas
  • pyqt5
  • scikit-image

The summit environment is a python3 venv. You may extend it with additional python packages using python3 -m pip install:

$ source /ccs/proj/your-project/glotzerlab-software/
$ python3 -m pip install package


Not all python packages support the ppc64le architecture.

Use the following commands in your job scripts or interactively to execute software inside the container:

source /ccs/proj/your-project/glotzerlab-software/
jsrun <jsrun options> command arguments


Properly selecting jsrun options for your job is beyond the scope of this document. If you do not know how to choose these, seek expert help.