[petsc-users] Using MATLAB on Windows with PETSc on WSL

[Satish Balay]

Well matlab as you say is on windows side - and WSL is basically linux.

One can invoke binaries from the other side - but obj-files/libraries [wrt compilers, linking] won't work as far as I know.

And the MEX targets require compilers/liners to be functional - so I don't think this will work.

And we don't have experience with using matlab natively on windows anyway..

Satish

----

sread:
        -@${MATLAB_MEX}  -g GCC='${CC}' CC='${PCC}' CFLAGS='${COPTFLAGS} ${CC_FLAGS} ${CCPPFLAGS}' LDFLAGS='${PETSC_EXTERNAL_LIB_BASIC}' sread.c bread.c
        -@${RM} -f sread.o bread.o
        -@${MV} sread.mex* ${PETSC_DIR}/${PETSC_ARCH}/lib/petsc/matlab


On Tue, 28 Sep 2021, Barry Smith wrote:

> 
> 
> > On Sep 28, 2021, at 11:33 AM, Lucas Banting <bantingl at myumanitoba.ca> wrote:
> > 
> > Hello,
> > 
> > My overall goal is to send a sparse matrix to PETSc (in WSL)from MATLAB (in Windows) so I can use SLEPc for some eigenvalue routines, and send those eigenvectors back to MATLAB, as the MATLAB eigs() struggles with my matrix and I was looking to experiment with different eigenvalue algorithms.
> > 
> > I was trying to configure PETSc on Windows Subsystem for Linux (WSL2). Configuring without '--with-matlab' works fine. I tried the configure command:
> > 
> > ./configure --with-scalar-type=complex --with-openblas-dir=~/software/OpenBLAS/
> > --with-matlab-dir=/mnt/e/Program\ Files/MATLAB/R2020b
> > 
> > I was wondering if there is a fundamental reason this configure won't work, or if it is just the space in 'Program Files' that is breaking the configure command. 
> 
>    We cannot tell without the configure.log file. Note you may be able to use the shorten MS DOS directory names which do not have spaces for that directory?
> 
> > 
> > I think the only thing configuring with MATLAB is 'sopen' and 'sclose'?
> 
>   Yes
> 
> > Is it possible I could just remake these on my own for a WSL compatible version?
> 
>   The building of sopen and sclose is something you can do directly by adjusting the makefile  by hand to link the correct files. 
> > 
> > Thanks,
> > 
> > Lucas
> 
>