This resolves issue #146 in development_branch

[palkinev]

This pull request either substitutes MPI_LOGICAL8 functions with integer analogues where needed or removes them if not used anymore.
This safely solves issue #146 .

[Niceno]

Dear Egor,

Wouldn't it be possible to replace MPI_LOGICAL8 with MPI_LOGICAL instead of MPI_INTEGER?

Or, is it so that there is no MPI_LOGICAL at all in MPICH?

Cheers,

 Bojan

[palkinev]

Yes,
'MPI_LOGICAL' is acceptable option, it always was as it is mentioned in issue #146 .

MPI_LOGICAL is always 8-byte long with -fdefault-integer-8 with gcc or -i8 with intel fortran compiler options.

However we might just stick with 0 and 1 of type MPI_INTEGER8 as a substitution.

My logic behind this decision was actually caused by an attempt to mimic your thought process you once told me:
“Someone will look inside the code and see those real*8 or real(kind=4) etc.
Instead we are going to have just ‘real’ type and it will always be set with double precision.”

If MPI_INTEGER8 and MPI_REAL8 are our main types in Backup_Mod it may bother some users why exactly are we using MPI_LOGICAL and not MPI_LOGICAL8.