run-dolfinx-scaling-test is a simple script provided by the fenicsx-performance-tests package in /usr/share/dolfinx/performance-tests which streamlines standardised scaling tests. Usage: run-dolfinx-scaling-test [-s] [-d DOFS_PER_PROCESS] By default the precompiled binary /usr/bin/dolfinx-scaling-test provided by the fenicsx-performance-tests package is used as the executable for running tests. A binary will be generated from source provided by the fenicsx-performance-tests-source package in a dolfinx-performance-tests-build dir if the -s option is used. The default value of DOFS_PER_PROCESS is 10000, a small number intended for testing correct execution (autopkgtest), not for scaling tests. Set -d to a value appropriate for scaling tests on your system.