Dear FEAP users,
I have recently installed the parallel version of the FEAP 8.5 on my PC running on UBUNTU 20.4 LTS. Below is the configuration for PETSC-3.7.6 I have followed
In .bashrc I have
export PETSC_DIR=/home/osman/a_feap85_bin/parallel/petsc-3.7.6
export PETSC_ARCH=gnu-opt
Then, I have issued the following command on the terminal
python2 ./configure --download-{spooles,parmetis,superlu_dist,prometheus,mpich,ml,hypre=/home/osman/a_feap85_bin/parallel/hypre-v2.11.1.tar.gz,metis,mumps,scalapack,blacs,fblaslapack=1,cmake} --with-debugging=1
Afterwards, the PETSc library was complied successfully ( I run into errors during 'make PETSC_DIR=/home/osman/a_feap85_bin/parallel/petsc-3.7.6 PETSC_ARCH=gnu-opt streams' stage in the case when I tried to build the non-debugging version) . Later, I have observed that mpirun does not appear as an executable in /gnu-opt/bin/. There was only mpirun@ (adress sign) and mpiexec@ there. Therefore, I have downloaded mpirun via
sudo apt install openmpi-bin
which was installed in /usr/bin/ located in the path ( I checked it by issuing $PATH on the terminal).
As a next step, I would like to validate the installation of PARMETIS by using the command set given in the parfeap manual. However, I have ended up wih the following error
PARMETIS ERROR: The sum of tpwgts for constraint #0 is not 1.0
repeated according to the number of partitions specified as numnd.
I have dug up some information regarding the issue but that was not really helpful.
Would you please help me to sort out the problem? Enclosed you can find the mesh, the input file for PARMETIS and the screenshot of the terminal.
P.S.I was able to perform METIS partition. However, this mesh is just a trial mesh and I will definitely deal with larger mesh sizes in the near future. My second question is how large the mesh size should be in order to switch to PARMETIS, e.g. 100,000 elements? In other words, what would be the range of mesh-size that I can effectively rely on METIS? The feature of my processors goes as follows Intel® Xeon(R) Silver 4214R CPU @ 2.40GHz × 48 with 96 GB RAM.
Best regards,
Osman