GitLab

- per default only some tests are run
- by setting CHECK_LEVEL=extended all test jobs are run

To be used like this

   class(elpa_t), pointer      :: e
   class(elpa_autotune_t), pointer :: tune_state

   e => elpa_allocate()
   call e%set(...)
   [...]
   assert_elpa_ok(e%setup())

   tune_state => e%autotune_setup(ELPA_AUTOTUNE_FAST, ELPA_AUTOTUNE_DOMAIN_REAL)

   ! Autotuning loop, continues until all combinations have been tried
   do while (e%autotune_step(tune_state))
     ! Do the steps that are representative of your calculation
     call e%eigenvectors(a, ev, z, error)
   end do

   ! Fix best parameters, and de-allocate the autotune object
   call e%autotune_set_best(tune_state)
   call elpa_autotune_deallocate(tune_state)

matrix for the test not prepared (called with zero matrix)
list of gitlab tests temporarily reduced

adding variants for single precision and complex math datatype
for the scalapack test

test analytic has been transformed to template to allow all
real/complex and single/double variants. However, at this
commit, only real double and real single variants are enabled

yet another attempt to improve single/double and real/complex
unification more readable

with obvious meaning

for easier comparisons of elpa and mkl, a test case using scalapack
function pdsyevd has been added

Anything if it makes Andreas happy :)

The new Makefile rule just dumped more and more lines into the test_x.sh
script, as the ">>" operator was used always.

From now on call make check with TASKS=x, e.g.

make check TASKS=2

The module is intended to be hidden, thus I moved it into the public
part of the legacy API.

Some test programs use it, thus the test programs have now also access
to ELPA's private modules. This is of course anyway necessary to test
ELPA internals that are not exposed via the public API.