Inside benchmarks/ directories are named with the convention:

<category>-<group>/

The <group> is identified by a four-digit number:

• Numbers 0000-0999 are linear
• Numbers 1000-1999 are nonlinear geometry, linear material
• Numbers 2000-2999 are linear geometry, nonlinear material
• Numbers 3000-3999 are nonlinear geometry and material

Within each <category>-<group> directory, files are named as follows:

• o-*.tcl are Tcl test files that are compatible with both the OpenSees and Xara Tcl interpreters.
• x-*.tcl are Tcl test files that are compatible with Xara's superset of OpenSees Tcl
• test_o_*.py are Python test files compatible with both OpenSeesPy and Xara's backwards compatible opensees Python interface.
• test_x_*.py are Python files compatible with Xara's standard Python interface