Hm - If you can work with cygwin/gnu compilers - then you can build petsc with them - and use it.
[however you can't build petsc with cygwin/gnu compilers - and then link in with an application using MS compilers] Satish On Sat, 21 Nov 2015, Brian Merchant wrote: > Hi all, > > I'd like to try and install PETSc on Windows (even though I have been > forewarned that it is better to simply install it on a unix system). > > Some information about my system: > * Windows 10 Pro, 64 bit > * latest Cygwin with make, gcc, g++, gfortran installed > > The PETSc installation instructions suggest that I run the following > command: > > ./configure --with-cc="win32fe cl" --with-fc="win32fe ifort" > --with-cxx="win32fe\ cl" --download-fblaslapack\ > > However, that results in the following error: > > C compiler you provided with -with-cc=win32fe cl does not work. > Cannot compile C with /cygdrive/a/petsc/bin/win32fe/win32fe cl. > > > The answer to this stackexchange question: > http://stackoverflow.com/questions/30229620/petsc-build-error-c-compiler-does-not-work > > recommends the following command instead (with escaped whitespace): > > ./configure --with-cc="win32fe\ cl" --with-fc="win32fe\ ifort" > --with-cxx="win32fe\ cl" --download-fblaslapack > > Running that command results in the following error (note no second line in > error): > > C compiler you provided with -with-cc=win32fe\ cl does not work. > > In both cases, the configure.log output only contains (I do not use Chinese > characters, these were in the file): > > > 㰡祳汭湩㹫arch-mswin-c-debug/lib/petsc/conf/configure.log > > What should I do? Also, do `gcc`/`g++` compiled programs not work on > Windows? I ask because if I simply run the suggested command in the "Quick > Installation" guide, using `gcc` and `g++`; then I don't get compilation > errors. Would it be okay to simply use those compilers then? > > Kind regards, > Brian >
