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Elmer is a finite element software for multiphysical problems published under open source. Elmer is mainly but not exclusively developed by CSC – IT Center for Science.

Elmer/ICE is  Open Source Finite Element Software for Ice Sheet, Glaciers and Ice Flow Modelling.

References 


To Compile Elmer follow this wiki. 


Notes:

1. If you are using intel compiler set elmer-opts.cmake to be as follows:


2. Load the relevant modules e.g.

$ module list
Currently Loaded Modulefiles:
  1) cmake/3.13.4       2) intel/2018.5.274   3) hpcx/2.4.0         4) mkl/2018.5.274

Procedure 


1. Retrieve the source and unpack it. Here we clone the whole repository:

$ git clone https://www.github.com/ElmerCSC/elmerfem


2. Create build directory

$ mkdir elmer-build


3. Elmer compilation system is built upon CMake which utilizes out of source builds strongly.

Create pre-cache file, and save it as, f.ex, elmer-opts.cmake for CMake which contains something like this:

SET(CMAKE_INSTALL_PREFIX "$ENV{PWD}/../elmer-install" CACHE PATH "")
SET(CMAKE_C_COMPILER "gcc" CACHE STRING "")
SET(CMAKE_CXX_COMPILER "g++" CACHE STRING "")
SET(CMAKE_Fortran_COMPILER "gfortran" CACHE STRING "")


Here you can choose the installation directory for Elmer as well by modifying variable the CMAKE_INSTALL_PREFIX.


In case, you are using intel compiler set elmer-opts.cmake to be as follows:

SET(CMAKE_INSTALL_PREFIX "../elmer-install" CACHE PATH "")
SET(CMAKE_C_COMPILER "icc" CACHE STRING "")
SET(CMAKE_CXX_COMPILER "icpc" CACHE STRING "")
SET(CMAKE_Fortran_COMPILER "ifort" CACHE STRING "")


4. Generate build scripts

$ cd elmer-build

--- For elmer use
$ cmake -C ../elmer-opts.cmake ../elmerfem 

--- For elmer/ice add the bool flag
$ cmake -C ../elmer-opts.cmake ../elmerfem -DWITH_ElmerIce:BOOL=TRUE

...
-- ------------------------------------------------
--   Package filename: elmerfem-8.4-9d3f59b-20190807_Linux-x86_64 
--   Patch version: 8.4-9d3f59b 
-- Configuring done
-- Generating done
-- Build files have been written to: ..... /elmer-build


The cmake tool will now inform if any libraries are missing. The build configuration can be further edited using e.g. ccmake tool or cmake-gui application.


5. Build and install

$ make -j8 install


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