points example lacking point data

Question

points example lacking point data

pkestene opened this issue a year ago · comments

Description

Currently the "points" examples are disabled in the cmake build.
These examples require pts data files (one file per MPI process).

There is also a comment in example/CMakelist.txt stating the points data files are missing, so that why the example is disabled in the cmake build (while still enabled in the autotools build) .

Proposed solution

provide a simple executable that generate some point data to avoid distributing binary data files
instead of generating one point data file per MPI process, just use MPI-IO to make reading / writing the point data file a MPI collective operation. One advantage is that user can easily generate data for any number of MPI processes, and read them with a possibly different number of MPI processes as easily.

Carsten Burstedde · Answer 1 · Tue Jul 04 2023 14:51:05 GMT+0800 (China Standard Time)

Thanks for thinking this forward!

Carsten Burstedde · Answer 2 · Thu Oct 19 2023 16:12:37 GMT+0800 (China Standard Time)

I'm merging #212, which resolves the issue. We may keep this issue open low-priority to play with the location of the generated points some more depending on the connectivity.

Likewise, adding the sc_io error handling will be instructive with this example.