Indication about the libmesh building in windows in msys2 shell is provided in the libmesh official site. But it doesn't work well in my case: Windows 10 + msys2 with gcc 6.3.0 + mingw64 with gcc 7.2.0. Some additional points should be take into acoount.
For both msys2 and mingw64
1. Symbolic links are not available in both msys2 or mingw64. Those include:
contrib/eigen/eigen; contrib/exodusii/v5.09, v5.22; contrib/nemesis/v3.09, v5.22
contrib/netcdf/v3,v4; contrib/qhull/qhull
you should build symbolic link by 'ln' (just a hard copy) or by 'mklink' yourself.
Libmesh should be compiled successful under msys2 then. But under mingw64, futher modification should be added.
2. Some optional dependencies are available
metis: see solution here.
fparse: operation system dependent 'mkdir' and POSIX 'link' function
netcdf: some problem in depdents upon hdf5
Disable them by using --disable-netcdf --disable-metis --disable-fparser
3. Dependent upon netcdf still exists even '--disable-netcdf' is indicated. Comment out line 40558 (subdirs="$subdirs contrib/netcdf/v4") of file 'configure'
4. Inconsistence between 'exodusII_io.h' and 'exodussII_io.C'
In 'exodusII_io.h' some varaibales are defined under the condition
----------------------------------
#ifdef LIBMESH_HAVE_EXODUS_API
UniquePtr<ExodusII_IO_Helper> exio_helper;
int _timestep;
#endif
--------------------------------
but are used unconditionedly in 'exodussII_io.C' at
--------------------------------------------
function ExodusII_IO::write_timestep_discontinuous
--------------------------------------------
"#ifdef LIBMESH_HAVE_EXODUS_API" is also needed here.
Everthing then should be allright!
Build PETSc in windows under mingw64
Installation of PETSc on windows is suggested in the official site of PETSc under cygwin and by specific script 'win32fe' provided. It could be, however, compiled in native windows under mingw64 with a few points should follows,
1. Don't use Windows style git such as TortoiseGit. Use git of msys2.
2. Specify your MPI environment by --with-mpi-include=<your mpi include folder> and --with-mpi-lib=<your mpi library>
3. Don't use ar in /mingw64/bin/ar by specify --with-ar=/usr/bin/ar
4. Set the gfortran compiler option by 'FOPTFLAGS=-fno-range-check'
The python script would something like:
#!/usr/bin/env python2
configure_options = [
'--with-mpi-include=/mingw64/include',
'--with-mpi-lib=/mingw64/lib/libmsmpi.a',
'--with-ar=/usr/bin/ar' ,
'--with-shared-libraries=0',
'--with-debugging=0',
'--with-visibility=0',
'--prefix=/usr/local/petsc',
'FOPTFLAGS=-O3 -fno-range-check',
]
if __name__ == '__main__':
import sys,os
sys.path.insert(0,os.path.abspath('config'))
import configure
configure.petsc_configure(configure_options)
5. Don't use python in /usr/bin/python other than /mingw/bin/python
e.g. runing the above script by type in > /usr/bin/python <your python script name>
Compilation of PETSc3.8.2 tests successfully!
1. Don't use Windows style git such as TortoiseGit. Use git of msys2.
2. Specify your MPI environment by --with-mpi-include=<your mpi include folder> and --with-mpi-lib=<your mpi library>
3. Don't use ar in /mingw64/bin/ar by specify --with-ar=/usr/bin/ar
4. Set the gfortran compiler option by 'FOPTFLAGS=-fno-range-check'
The python script would something like:
#!/usr/bin/env python2
configure_options = [
'--with-mpi-include=/mingw64/include',
'--with-mpi-lib=/mingw64/lib/libmsmpi.a',
'--with-ar=/usr/bin/ar' ,
'--with-shared-libraries=0',
'--with-debugging=0',
'--with-visibility=0',
'--prefix=/usr/local/petsc',
'FOPTFLAGS=-O3 -fno-range-check',
]
if __name__ == '__main__':
import sys,os
sys.path.insert(0,os.path.abspath('config'))
import configure
configure.petsc_configure(configure_options)
5. Don't use python in /usr/bin/python other than /mingw/bin/python
e.g. runing the above script by type in > /usr/bin/python <your python script name>
Compilation of PETSc3.8.2 tests successfully!
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