Dear preCICE community,
We are happy to announce a new bugfix preCICE release v3.1.1.
We fixed a bug which results in a hang in initialize when using non-zero initial data with data mappings using collectives on a parallel participant along with at least one rank having an empty mesh. In practice, this happens when the solver domain decomposition results in a rank not handling a coupling interface, such as the parallel fluid participant in the flow-over-heated-plate tutorial.
We also added missing checks for unknown/typoed participant names in <exchange> and <m2n> tags.
TLDR please upgrade if you are on v3.x.x
For all details, check the full list of changes in the changelog.
Happy coupling!