Data mapping not allowed for parallel computation

Using preCICE
,
6

Runs only in serial because you use a write-consistent mapping:

  <participant name="OpenFOAM">
    <use-mesh name="OpenFOAM-Mesh" provide="yes"/>
    <read-data name="Heat-Flux" mesh="OpenFOAM-Mesh"/>
    <write-data name="Temperature" mesh="OpenFOAM-Mesh"/>
  </participant>

  <participant name="Nutils">
    <use-mesh name="OpenFOAM-Mesh" from="OpenFOAM"/>
    <use-mesh name="Nutils-Mesh-GP" provide="yes"/>
    <use-mesh name="Nutils-Mesh-CC" provide="yes"/>
    <mapping:nearest-neighbor direction="write" from="Nutils-Mesh-CC" to="OpenFOAM-Mesh" constraint="consistent"/>
    <mapping:nearest-neighbor direction="read"  from="OpenFOAM-Mesh" to="Nutils-Mesh-GP" constraint="consistent"/>
    <read-data name="Temperature" mesh="Nutils-Mesh-GP" />
    <write-data name="Heat-Flux" mesh="Nutils-Mesh-CC" />
  </participant>    

  <coupling-scheme:serial-explicit>
    ...
    <exchange data="Temperature" mesh="OpenFOAM-Mesh" from="OpenFOAM" to="Nutils"/>
    <exchange data="Heat-Flux" mesh="OpenFOAM-Mesh" from="Nutils" to="OpenFOAM"/>
  </coupling-scheme:serial-explicit>

Works in serial and parallel:

  <participant name="OpenFOAM">
    <use-mesh name="OpenFOAM-Mesh" provide="yes"/>
    <use-mesh name="Nutils-Mesh-CC" from="Nutils"/>
    <read-data name="Heat-Flux" mesh="OpenFOAM-Mesh"/>
    <write-data name="Temperature" mesh="OpenFOAM-Mesh"/>
    <mapping:nearest-neighbor direction="read" from="Nutils-Mesh-CC" to="OpenFOAM-Mesh" constraint="consistent"/>
  </participant>

  <participant name="Nutils">
    <use-mesh name="OpenFOAM-Mesh" from="OpenFOAM"/>
    <use-mesh name="Nutils-Mesh-GP" provide="yes"/>
    <use-mesh name="Nutils-Mesh-CC" provide="yes"/>
    <mapping:nearest-neighbor direction="read"  from="OpenFOAM-Mesh" to="Nutils-Mesh-GP" constraint="consistent"/>
    <read-data name="Temperature" mesh="Nutils-Mesh-GP" />
    <write-data name="Heat-Flux" mesh="Nutils-Mesh-CC" />
  </participant>    

  <coupling-scheme:serial-explicit>
    ...
    <exchange data="Temperature" mesh="OpenFOAM-Mesh" from="OpenFOAM" to="Nutils"/>
    <exchange data="Heat-Flux" mesh="Nutils-Mesh-CC" from="Nutils" to="OpenFOAM"/>
  </coupling-scheme:serial-explicit>