[Users] McLachlan test suite

[Ian Hinder]

On 16 Jun 2010, at 16:11, Ian Hinder wrote:

> I have removed output for the reduction, but I now get differences  
> above tolerance in the Hamiltonian constraint:
>
>    H.x.asc: substantial differences
>       significant differences on 6 (out of 46) lines
>       maximum absolute difference in column 13 is 3.46657468355827e-12
>       maximum relative difference in column 13 is 9.69181535413736e-11
>       (insignificant differences on 9 lines)
>    H.y.asc: substantial differences
>       significant differences on 7 (out of 46) lines
>       maximum absolute difference in column 13 is 2.2119042708546e-12
>       maximum relative difference in column 13 is 4.60112943759897e-11
>       (insignificant differences on 8 lines)
>    H.z.asc: substantial differences
>       significant differences on 14 (out of 60) lines
>       maximum absolute difference in column 13 is 3.00423574906006e-12
>       maximum relative difference in column 13 is 6.2493109449911e-11
>       (insignificant differences on 7 lines)
>
> The evolved variables show differences below tolerance.
>
> I attach the patch which contains the testsuites.  I am inclined to  
> commit it, and warn people to use OMP_NUM_THREADS=1 when running  
> it.  At least this gives us a direct working regression test for  
> McLachlan.  But we should understand why the Hamiltonian constraint  
> is giving these differences.
>
> If we want to include this test in the release, we will need to  
> modify the einsteintoolkit.th thornlist to include the new thorn.   
> The test runs only on 2 processes, as specified in the test.ccl  
> file, due to the CarpetIOASCII output being dependent on the process  
> decomposition.  I have run the test successfully on my laptop and on  
> damiana, but not on anything more exotic.


Erik agreed that we should commit the testsuite, so I have committed  
it.  I attach a patch to add the test thorn to the einsteintoolkit.th  
thornlist.  OK to commit?

-- 
Ian Hinder
ian.hinder at aei.mpg.de
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