Dear all, (let's use this mailing list for more than just announcements ;-) --- and please keep Jeff and Martin R. in the loop, as I don't know whether they [still] subscribe to the list) Sorry for being a bit late with this discussion. Today is the deadline for the Embiggening check through all the chapters, and I finally finished the tools chapter. *TL;DR:* The `handle_alloc` functions are the only ones being embiggened. Do they need to be? Are these enough? *Details below:* There we currently see two situations where we have an "Embiggening" taking place: mpi_t_cvar_handle_alloc mpi_t_pvar_handle_alloc With the paramter `count` being a POLYTOOLS_NUM_ELEM, leading to two additional calls with `_l` suffix where said count is not an `int` but an `MPI_Count`. The description of `count` in both calls is as follows: "number of elements used to represent this variable (non-negative integer)" I was wondering now: Is this `count` to be an `MPI_Count` necessary? I am not against it, I just want to make sure we have a strong argument for it. If we ever have a performance or config variable that in itself contains more than 2,147,483,647 values (per instance), that variable in itself might be the performance bottleneck we are trying to uncover ;-) If we argue for having this `count` as an `MPI_Count`, to make things future proof. What about the calls to mpi_t_cvar_get_num mpi_t_pvar_get_num ? I do see a difference in defining a single variable with lots of entries and defining lots of variables with single values, so I am also not against this distinction. I just want to make sure, we don't /miss out/ on these call, just because their parameter names are not `count` but `num_cvars` and `num_pvars`, respectively. If we do change these, however, we'd have to update all the calls that take an `index` value, too, as that `index` is between 0 and `num_pvar` and `num_cvar`, respectively. And that's basically every call ;-) So, are we good with how things are defined at the moment? Should we adapt? In which direction? Any thoughts on this? Cheers, Marc-Andre -- Dr. rer. nat. Marc-André Hermanns IT Center Group: High Performance Computing Division: Computational Science and Engineering RWTH Aachen University Seffenter Weg 23 52074 Aachen Phone: +49 241 80-24381 [email protected] www.itc.rwth-aachen.de