H5Part development and discussion

[PSI <achim.gsell AT psi.ch>]

> On 24 Jul 2017, at 19:45, Matthew Bettencourt <mbetten AT sandia.gov> wrote:
> 
> I really like H5Hut and I'm using the latest git verison.
> 
> 
> Question, it looks like the parallel_io define is really has_mpi which is 
> necessary for parallel_io but not sufficient.  If you are building with MPI 
> but not a parallel hdf5, then you get errors at link time if you enable 
> parallel_io or at compile time if you use mpicc.

I'm not sure whether I understand you correctly. Is this what you mean?

First case: building H5hut with MPI, a serial (not parallel) hdf5, 
PARALLEL_IO defined.
This combination is not valid. I will add some checks in configure and 
H5huts's header files to print an error.

Second case: building H5hut with MPI, a serial hdf5, PARALLEL_IO not defined.
This should work, I have to test this case.


Best

Achim