Underscores could be the issue. My program is calling MPI functions
in all caps with no underscoring, e.g. MPI_SEND . I tried adding -
fno_underscoring to my LDFLAGS, but that didn't help. Are there any
other flags can I try using?
Thank you,
Aaron Thompson
Vanderbilt University
aaron.p.thompson_at_[hidden]
> Could your problem be Case or leading or trailing underscores?
>
> Some code has:
>
> MPI_Send
> mpi_send
> mpi_send_
> _mpi_send_
>
> The code and MPI libs need to have the same Case and underscore
> policy.
>
> Regards,
> joe Griffin
On Jul 9, 2007, at 1:20 PM, lam-request_at_[hidden] wrote:
> cp /usr/local/lammpi/include/mpif.h .
> $(MAKE) LD="/opt/ibmcmp/xlf/8.1/bin/xlf -o" \
> LDFLAGS="-I/usr/local/lammpi/include -L/usr/local/lammpi/lib
> -llammpio -llamf77mpi -lmpi -llam -ldl" \
> FC="/opt/ibmcmp/xlf/8.1/bin/xlf" \
> FFLAGS="-c -ffast-math -qstrict -O3 -qarch=auto -
> qmaxmem=32768 -I/usr/local/lammpi/include" \
> EX=$(EX) BINROOT=$(BINROOT) $(TYPE)
>
> Here's the exact error I'm getting:
> /usr/bin/ld: Undefined symbols:
> _mpi_allreduce_
> _mpi_barrier_
> _mpi_comm_rank_
> _mpi_comm_size_
> _mpi_finalize_
> _mpi_init_
> _mpi_recv_
> _mpi_send_
> _mpi_irecv_
> _mpi_wait_
>
> Thank you!
>
> Aaron Thompson
> Vanderbilt University
> aaron.p.thompson_at_[hidden]
>
>
>
>
>
>
|
