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762. By Alberto Garcia on 2018-12-30

Add option to keep input distribution to cellXC

By settting the optional argument 'keep_input_distribution' to
.true., the internal workload balancer in cellXC is deactivated,
and the input distribution kept for the XC computations. This is
advantageous when the client program has better workload-balancers
available.

761. By Alberto Garcia on 2018-12-30

Use "yes/no" distribution as initial one in SiestaXC

Give SiestaXC a head start with the appropriate distribution by
using the "yes/no" (called 'LINEAR') distribution from BSC as the
initial one. Just specify the box (with the appropriate conversions)
and let SiestaXC re-work its internal distribution list.

760. By Alberto Garcia on 2018-12-17

Refrain for now from making BSC's cellxc the default

Leave the fdf statements to select version, but leave SiestaXC
as the default for now.

759. By Alberto Garcia on 2018-12-12

Fix Util Makefiles

758. By Alberto Garcia on 2018-12-12

Remove BSC_CELLXC preprocessor blocks

By default, the BSC version of cellxc is used unless there
is a vdw functional in the "cocktail".

In 'forhar', the BSC version is used by default (no vdw
functionals might (ever?) be compatible with the Harris
option).

The user can control this behavior by means of the fdf
logical variable:

   XC.Use.BSC.CellXC (T/F)

757. By Alberto Garcia on 2018-12-10

Consolidate BSC_CELLXC blocks in forhar + fix potential bugs

A number of 'reord' operations towards 'sequential' fine-point
ordering (which were compiled-in only for the new interface) have been
removed, as all the arrays involved are already in 'sequential' form.

Tests show that these changes do not seem to affect the results, however.

The 'forhar' interface uses the 'ntm' argument in all cases, to simplify
the code.

756. By Alberto Garcia on 2018-12-09

Initialize needs_grads in dhscf

755. By Alberto Garcia on 2018-12-09

Consolidate BSC_CELLXC preprocessor blocks in dhscf

754. By Alberto Garcia on 2018-12-09

Remove XC incompatibility check in ldau.F

753. By Alberto Garcia on 2018-12-09

Have bsc_cellxc use the lower-level gridxc interfaces

BSC's version of cellxc now uses ldaxc, ggaxc, and setxc/getxc from
libGridXC. This enhances its functionality (more functionals) and
saves on duplicated code.

In 'meshsubs', 'distriphionmesh' now accepts an extra argument to flag
the need for stencil initilization.