Kranc, Cactus, and MPI linking issues

[Nicholas Hugh Olsen]

After installing Kranc and seeing a successful install message, I went to build the ET with the standard

   simfactory/bin/sim build -j2 --thornlist manifest/einsteintoolkit.th

like I always do when changing or adding a thorn but I received a slew of errors about undefined references with MPI(See log file for details). All of this is done on a personal computer which I have attached my previously working configuration file(I think) for, along with options and thorn lists just in case.

The make.log was made with

 VERBOSE=1 simfactory/bin/sim build -j1 2>&1 | tee make.log 

as found on the support page without any changes made that might have messed with building.

[Roland Haas]

If it’s Kranc specific then you may consider using Kranc’s mailng list and issue tracker as mentioned on the Kranc website: http://kranccode.org/support.html

Having said that, the Kranc authors tend to see ET tickets and may speak up.

My (Debian Bookworm) /usr/lib/x86_64-linux-gnu/openmpi/lib/ looks like this

~$ ls /usr/lib/x86_64-linux-gnu/openmpi/lib/
libmca_common_monitoring.so  libmpi_cxx.so                libopen-rte.so
libmca_common_ofi.so         libmpi_java.so               liboshmem.so
libmca_common_ompio.so       libmpi_mpifh.so              ompi_monitoring_prof.so
libmca_common_sm.so          libmpi_usempi_ignore_tkr.so  openmpi3
libmca_common_ucx.so         libmpi_usempif08.so          pkgconfig
libmca_common_verbs.so       libompitrace.so
libmpi.so                    libopen-pal.so

ie there is a library mpi_cxx in addition to mpi. So you may try and add mpi_cxx to you MPI_LIBS variable in the option list.

[Ian Hinder]

@{606c600bedc14f007689694e} Is this still an issue, or did you manage to fix it? It sounds like it might be a problem with having the wrong, or multiple MPI libraries installed.

[Roland Haas]

This ticket seems to have gone stale. I will close it in in February unless there is activity.

[Roland Haas]

Stale ticket.