Abaqus-preCICE-FeniCS coupling issue

Using preCICE
1

I am trying to couple Abaqus and precice library, where I have written Abaqus user subroutine: coupling.f90

system: cluster (super computer); precice v2.4.0 (installed via spack); mpi: openmpi

I am using fortran module from precice: precice.f90, this on compilation with gfortran -c precice.f90 gives me precice.mod and precice.o files.

In order to use precice functions inside the abaqus subroutine, a shared library file is necessary to abaqus, created by linking coupling.f90 and precice.mod and libprecice.
I am using the following commands to create the shared library libstandard.so (all files are in same folder):

F03 ?= gfortran

all: libstandardU.so

libstandardU.so: coupling.f90
    $(F03) -shared -fPIC $^ -o $@ -I. $(shell pkg-config --libs libprecice)

then I ran:

abaqus job=Read.inp user=coupling.f90 ask=off int

I am still getting the error as undefined symbol precice:

Begin Abaqus/Standard Analysis
Mon 05 Aug 2024 03:56:08 PM CEST
Run standard
/cluster/SIMULIA/EstProducts/2024/linux_a64/code/bin/standard: symbol lookup error: /tmp/kandekac_Read_552606/libstandardU.so: undefined symbol: precice_

My code snippet to call the precice function inside the abaqus subroutine is:

      USE precice
      IMPLICIT NONE

      CHARACTER(50):: config, participantName, meshName
      CHARACTER(50):: writeInitialData, readItCheckp, writeItCheckp
      CHARACTER(50):: writeDataName
      CHARACTER(50):: node_coor_data_name
      CHARACTER(50):: spall_thick_data_name
      INTEGER :: ongoing,dimensions,meshID,bool,numberOfVertices
      INTEGER ::  writeDataID, node_coor_ID, spall_thick_ID
      REAL(8):: precice_dt, solver_dt

I am not sure, why it does not link precice?
Can anyone help me with this linking problem?

2

Hi @kandekac

I have coupled Abaqus to other software using preCICE, by using the Fortran bindings of preCICE. Using the Fortran bindings you can directly call preCICE API in the Abaqus subroutine. This way does not require any linking or compilation of functionality for coupling. I would suggest using the Fortran bindings rather than the Fortran module.