To run FieldConvert in parallel the user needs to compile Nektar++ with MPI support and can employ the following command
or
replacing <nprocs> with the number of processors. This will produce multiple .dat or .vtu
files of the form test_P0.dat, test_P1.dat, test_P2.dat or test_P0.vtu, test_P1.vtu,
test_P2.vtu. Note when producing a parallel .vtu file an additional file called
.pvtu is written out which allows for parallel reading of the individual .vtu files.
Similarly functions that produce a .fld file output can be processed in this manner. In
the case when producing a .fld file a directory called test.fld (or the specified
output name) will be produced with the standard parallel field files placed within the
directory.