28-getelementi…

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			Scalability test (3D)
			`````````````````````

			:Sources:

			.. collapse:: cohesive_extrinsic.cc (click to expand)

			.. literalinclude:: examples/c++/scalability_test/cohesive_extrinsic.cc
			:language: c++
			:lines: 20-

			.. collapse:: material-elastic.dat (click to expand)

			.. literalinclude:: examples/c++/scalability_test/material-elastic.dat
			:language: text

			:Location:

			``examples/c++/`` `scalability_test <https://gitlab.com/akantu/akantu/-/blob/master/examples/c++/scalability_test>`_

			This example is used to do scalability test, with elastic material or cohesive elements inserted on the fly.
			The `cube.geo` should generate a mesh with roughly 4'500'000 elements and 730'000 nodes. The `cube.msh` file included is a `tiny` cube only to test if the code works.

			To run the full simulation the full mesh has to be generated `gmsh -3 cube.geo -o cube.msh`

			The simulation consist of a cube with a compressive force on top and a shear force on four sides as shown in the figure bellow

			.. figure:: examples/c++/scalability_test/images/cube.svg
			:align: center
			:width: 60%

			This examples was used to run the scalability test from the JOSS paper the
			full mesh and results presented in the following graph can be found here:
			`perf-test-akantu-cohesive
			<https://gitlab.com/akantu/performance-testing-cohesive/-/tree/publications/joss?ref_type=tags>`_

			.. figure:: examples/c++/scalability_test/images/TTS.svg
			:align: center
			:width: 60%