Hello everyone, I am having trouble installing FreeFEM + PETSc on a HPC cluster. Precisely, the installation seems OK at first glance, and everything runs smoothly when I run the codes on one node; however, when I try to run on multiple nodes, the code just stops randomly, similarly to a previously…

I tried out -pc_type jacobi -ksp_max_it 10 as you suggested and the program seems to run fine. Same applied for -pc_type bjacobi . However, -pc_type lu -pc_factor_mat_solver type superlu_dist get stuck just like mumps. Maybe the issue is somehow related to the conversion between matrix types (that …

Can you reproduce this on a standalone PETSc example?

I do not think so. If I run the previously mentioned PETSc example, ex15.c with srun -n 384 ex15 -m 200 -n 200 -ksp_type preonly -pc_type lu -pc_factor_mat_solver_type mumps -log_view -options_left , it seems like all the options are detected, and the program completes successfully.

Maybe try to edit src/fflib/ffapi.cpp, in ffapi_mpi_init(), remove everything and just keep the call to PetscInitialize() (you may have to add #include <petsc.h> at the top of the file), then try to recompile in src.

Thanks for the tip. Unfortunately, that did not work. The corresponding function looks like the following: static void ffapi_mpi_init(int &argc, char** &argv){ #ifdef WITH_PETSCxxxxx PetscInitialize(&argc, &argv, 0, ""); #endif } The compilation is successful, but the tests do not even s…

Unfortunately, that does not work either. The following function static void ffapi_mpi_init(int &argc, char** &argv){ PetscInitialize(&argc, &argv, 0, ""); } returns the error ../fflib/ffapi.cpp: In function ‘void ffapi::ffapi_mpi_init(int&, char**&)’: ../fflib/ffapi.cpp:258:5: error: ‘P…

Well, you need to remove the macro and fix the error.

Unfortunately, I just cannot figure it out. I think removing the macro inside the function mentioned causes problems in the non-petsc part of FreeFEM. I understand that you do not have much time to dedicate to this issue (I already appreciate very much the help you gave me), but without further guid…

Right, you just want to compile the files needed for FreeFem++-mpi, and you probably need to fix the compile line/link line to include the proper PETSc flags. Anyway, if you can’t get it to compile (my idea was to let PETSc initialize MPI since the code seems to be working when it’s PETSc-only), you…

FreeFEM compilation: issues on HPC

FreeFEM installation

aszaboa March 25, 2025, 5:46pm 44

Thanks for looking into it! I will look into it whether I did not mix modules up, and talk to the sysadmin for machine specific help.

Topic		Replies	Views
MPI fail on HPC cluster FreeFEM installation	30	3443	November 22, 2021
FreeFem++ PETSc configuration problem in Linux FreeFEM installation	32	4011	January 28, 2021
PETSc/MUMPS Compilation fail on arch-linux FreeFEM installation	9	481	April 7, 2022
FreeFEM compilation FreeFEM installation	2	54	December 11, 2025
Trouble installing FreeFEM with full plugin support on HPC cluster FreeFEM installation	25	368	April 16, 2025

FreeFEM compilation: issues on HPC

Related topics