Hi,
Am 28.06.2010 um 08:10 schrieb Srinivas Gopal:
I have used the wrapper compilers ($FC=mpif90 and $CC=mpicc), even
then i was getting these errors. Anyway I used -lmpi in place of -
lmpich and the build was successful. Thanks a lot for your help :)
I saw makefiles, where the compilers (i.e. MPI wrappers) were only
used for compiling the source to object files. Later on these were
still linked with `gcc` or `ld`. Hence the MPI library must be
accessed also for the linker step by `mpicc` instead of `gcc` when
setting $LD is supported, or set in e.g. $LDFLAGS for the latter.
Why is there no `mpild` to do this automatically then?
-- Reuti
Cheers,
Srinivas
On Fri, Jun 25, 2010 at 5:19 PM, Jeff Squyres <jsquy...@cisco.com>
wrote:
On Jun 25, 2010, at 4:11 AM, Götz Waschk wrote:
> libmpich is not part of open-mpi. Maybe your software build with
mpich
> only? If your software does not use anything specific to mpich, you
> could try to change -lmpich to -lmpi .
Better yet, the Open MPI team strongly discourages listing
individual MPI libraries on the link line because we reserve the
right to change them over time.
Instead, we *strongly* advise you to just use Open MPI's wrapper
compilers, which will insert all the Right compiler and linker
flags. Then you don't have to worry about any of those pesky -I and
-L options, especially when transitioning between different MPI
implementations and versions of Open MPI.
http://www.open-mpi.org/faq/?category=mpi-apps#general-build
http://www.open-mpi.org/faq/?category=mpi-apps#cant-use-wrappers
--
Jeff Squyres
jsquy...@cisco.com
For corporate legal information go to:
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