Hello,
I'm trying to compile an MPI-using program using XLF but I'm getting
undefined MPI symbols when linking. I built LAM with GCC 4.2 and
GFortran. Can a program compiled using XLF link to libraries
compiled with GFortran? Here is the makefile entry I'm using:
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]
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