[Users] Machine tests

[Roland Haas]

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Hello all,

> I suggest that you run anyway.  It's likely there will be failures 
> (all intel-compiler-based systems are currently showing failures
> in GRHydro and other tests), so you may as well set up your tree
> and
Not all intel systems show the same behaviour. Intel 12/13 based
systems seem to have few tests that fail and those that fail fail due
to tolerances being possibly too large.

Intel 11 system on the other hand crash catastrophically, from what I
can tell so far from the compiler not handling Cray pointers correctly
(eg the Hydro_InitExcision gives a segfault). So far I have no good
workaround for the issue. I will have to check if all usage of Cray
pointers is affected or only the Reconstruction drivers (which is
where the segfault happens) since they use array slices.

These are not the usual GRHydro failures unfortunately but instead a
compiler bug. A workaround that does not fail on other compilers is
required (one workaround is eg to set the size of the leftmost
dimension of the pointee in question to zero, it almost seems as if
the compiler actually allocates space for the pointees).

Yours,
Roland

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