open TELEMAC-MASCARET The mathematically superior suite of solvers

Hi, all
I am using telemac v8p0r0 and I want to use the APIs from TelApy. I have installed the metis-5.1.0 and its dynamic version, both libmetis.a and libmetis.so are built.
Moreover, I have successfully compiled Dynamic compilation for TelApy.
However, when I test the example telemac2d.ipynb in the folder of /v8p0r0/scripts/python27/TelApy/notebooks/api, there get some errors about _api.so and METIS_PartMeshDual:

Python 2.7.15rc1 (default, Nov 12 2018, 14:31:15)
[GCC 7.3.0] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import TelApy.api.t2d
>>> import os
>>> HOMETEL = os.environ.get('HOMETEL')
>>> os.chdir(HOMETEL + '/examples/telemac2d/breach')
>>> from TelApy.api.t2d import Telemac2d
>>> from mpi4py import MPI
>>> my_case = Telemac2d('t2d_breach.cas', lang=1, comm=MPI.COMM_WORLD)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/home/lairuixun/telemac-mascaret/v8p0r0/scripts/python27/TelApy/api/t2d.py", line 56, in __init__
dicofile, lang, stdout, comm, recompile)
File "/home/lairuixun/telemac-mascaret/v8p0r0/scripts/python27/TelApy/api/api_module.py", line 137, in __init__
'\n'+str(execpt))
Exception: Error: unable to load the dynamic library _api.so
You can check the environment variable PYTHONPATH
/home/lairuixun/telemac-mascaret/v8p0r0/builds/ubugfopenmp/wrap_api/lib/libpartel.so: undefined symbol: METIS_PartMeshDual

Hi,

This looks like the error you would get if metis was actually compiled in static but linked as if it was in dynamic.

What command did you used to compile metis ?

Can you give me the return of the command ldd on _api.so (in builds/<usetelcfg>/wrap_api/lib)

Hi, yugi. Thanks for your kindly reply.
I followed the instruction on the web that compiled the dynamic version of metis by:
$ cmake -D CMAKE_INSTALL_PREFIX=/home/lairuixun/telemac-mascaret/v8p0r0/optionals/metis-5.1.0/build -DSHARED=TRUE
$ make
$ make install
A libmetis.so was built with size of 507.6 k.
I also checked the return of the command ldd on _api.so in which many undefined symbols including METIS_PartMeshDual(libpartel.so) were founded. The same situation was founded on libpartel.so. However, I don't know how to solve it.

I attached the return of the command on _api.so and libpartel.so, as well as the compiled process of dynamic version of metis-5.1.0.

Thanks!

The only thing I can think of is that the LD_LIBRARY_PATH is not set properly.
Even though it looks good in your pysource and telemac compilation works.
Try echo $LD_LIBRARY_PATH and check that the path to metis is in there.

Also try rerunning compileTELEMAC.py --clean.