Not a dumb question at all. :-) I think the problem is your L flag. Our mpif90 wrapper compiler should already know where to find the MPI library, which is located in wherever you installed openmpi. Your flag is trying to overload our settings and I believe is causing confusion.
So just eliminate the flag and I think you¹ll find everything compiles just fine. Hope that helps Ralph On 6/10/07 1:08 PM, "Jeff Pummill" <jpum...@uark.edu> wrote: > Maybe the "dumb question" of the week, but here goes... > > I am trying to compile a piece of code (NPB) under OpenMPI and I am having a > problem with specifying the right library. Possibly something I need to define > in a LD_LIBRARY_PATH statement? > > Using Gnu mpich, the line looked like this... > > FMPI_LIB = -L/opt/mpich/gnu/lib/ -lmpich > > I tried to replace this with... > > FMPI_LIB = -L/usr/lib/openmpi/ -llibmpi > > to which the make responded... > mpif90 -O -o ../bin/cg.A.2 cg.o ../common/print_results.o ../common/randdp.o > ../common/timers.o -L/usr/lib/openmpi/ -llibmpi > /usr/bin/ld: cannot find -llibmpi > collect2: ld returned 1 exit status > > Wrong library file? Setup or path issue?
