Merge pull request #1640 from homnath/devel #19

Job	Run time
Check file changes	30s
Test on Mac	19m 12s
Test Intel on ubuntu-20.04	11m 46s
Test on ubuntu-latest	2m 58s
Test on ubuntu-20.04	2m 4s
Test run example 2 - fault tpv5	5m 29s
Test run example 1 - meshfem3D simple model	4m 4s
Test run example 11 - poroelastic	3m 6s
Test run example 10 - homogeneous halfspace	2m 45s
Test run example 3 - layered halfspace	3m 17s
Test run example 0 - make tests	7m 8s
Test run example 4 - small adjoint	4m 45s
Test run example 5 - socal1D	3m 45s
Test run example 6 - socal1D 1d_socal	3m 21s
Test run example 7 - socal1D 1d_prem	3m 19s
Test run example 8 - socal1D 1d_cascadia	3m 32s
Test run example 9 - coupling FK	3m 39s
Test run example 12 - PML elastic	4m 44s
Test run example 13 - PML acoustic	3m 45s
Test run example 14 - waterlayered halfspace	3m 37s
Test run example 15 - tomographic model	2m 40s
Test run example 16 - cavity	2m 37s
Test run example 17 - sep bathymetry	4m 19s
	1h 46m 22s

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