[mpich-discuss] GFORTRAN on MinGW doesn't link

[Bland, Wesley B.]

Unfortunately, we haven't supported Windows since MPICH version 1.4.1p1. You can find out more at the FAQ page: http://wiki.mpich.org/mpich/index.php/Frequently_Asked_Questions#Q:_Why_can.27t_I_build_MPICH_on_Windows_anymore.3F

Thanks,
Wesley

> On Sep 17, 2014, at 10:39 AM, Miao Li <rockymountai at gmail.com> wrote:
> 
> Hello, Folks
> 
> Sorry to bug you guys with this but I am sure there are tons of people
> have encountered this before, I am creating a MPI program with MPICH-2
> and gfortran on Windows 8 64 with MinGW, but for some reason the
> MPICH-2 can't be linked and errors are:
> 
> hello_mpi.o:hello_mpi.f90:(.text+0x10): undefined reference to `mpi_init_'
> hello_mpi.o:hello_mpi.f90:(.text+0x2a): undefined reference to `mpi_comm_size_'
> hello_mpi.o:hello_mpi.f90:(.text+0x44): undefined reference to `mpi_comm_rank_'
> hello_mpi.o:hello_mpi.f90:(.text+0x54): undefined reference to `mpi_wtime_'
> hello_mpi.o:hello_mpi.f90:(.text+0x6bd): undefined reference to `mpi_wtime_'
> hello_mpi.o:hello_mpi.f90:(.text+0x7f7): undefined reference to `mpi_finalize_'
> c:/users/<myid>/program_files/mingw/bin/../lib/gcc/mingw32/4.8.1/../../../../mingw32/bin/ld.exe:
> C:\Users\<myid>\AppData\L
> ocal\Temp\cckYDcnb.o: bad reloc address 0x20 in section `.eh_frame'
> c:/users/<myid>/program_files/mingw/bin/../lib/gcc/mingw32/4.8.1/../../../../mingw32/bin/ld.exe:
> final link failed: Inval
> id operation
> collect2.exe: error: ld returned 1 exit status
> 
> This is just a "hello world" program and I followed the instructions
> in the README.winbin.rtf file
> 
> "
> 
> 2) add –I…mpich2\include
> 
> 3) add –L…mpich2\lib
> 
> "
> 
> Some people believe that the "-lmpi" option should be used at the very
> end of command, I did that but doesn't help.
> 
> I even tried compiling without any makefile but just a single command like:
> 
>> gfortran.exe -I"C:\Program Files\MPICH2\include" hello_mpi.f90 -L"C:\Program Files\MPICH2\lib" -lmpi
> 
> But still it doesn't work for me.
> 
> Did any of you guys have encountered this before?
> 
> I really look forward your response, any inputs are highly appreciated!!!
> 
> Thank you so much!
> 
> Best Regard
> 
> NOTE:
> 
> Here is my simple makefile:
> 
> F90    = gfortran
> MPI_DIR   = /c/Program\ Files/MPICH2
> MPI_LIB_DIR  = $(MPI_DIR)/lib
> MPI_LIB_INCLUDE = $(MPI_DIR)/include
> MPI_LIB   = -L$(MPI_LIB_DIR) -lmpi
> MPI_INCLUDE  = -I$(MPI_LIB_INCLUDE)
> SRC    = hello_mpi.f90
> OBJ    = $(SRC:.f90=.o)
> EXEC   = hello
> $(EXEC): $(OBJ)
> $(F90) -o $(EXEC)  $(OBJ) $(MPI_LIB)
> $(OBJ) : $(SRC)
> $(F90) $(MPI_INCLUDE) -c $<
> clean:
> rm *.o
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