Here are the results using mpicc:
(ffe-64 153%) mpicc -o send4 send4.c
/usr/bin/ld: skipping incompatible /net/scratch1/dog/flash64/openmpi/
openmpi-1.0.2-32b/lib/libmpi.so when searching for -lmpi
/usr/bin/ld: cannot find -lmpi
collect2: ld returned 1 exit status
(ffe-64 154%) mpicc -showme
gcc -I/net/scratch1/dog/flash64/openmpi/openmpi-1.0.2-32b/include -I/
net/scratch1/dog/flash64/openmpi/openmpi-1.0.2-32b/include/openmpi/
ompi -pthread -L/net/scratch1/dog/flash64/openmpi/openmpi-1.0.2-32b/
lib -lmpi -lorte -lopal -lutil -lnsl -ldl -Wl,--export-dynamic -lutil
-lnsl -lm -ldl
Thus is seems the -m32 flag did not make it into mpicc. If I put it
in and compile, things compile without error:
(ffe-64 155%) gcc -m32 -I/net/scratch1/dog/flash64/openmpi/
openmpi-1.0.2-32b/include -I/net/scratch1/dog/flash64/openmpi/
openmpi-1.0.2-32b/include/openmpi/ompi -o send4 send4.c -pthread -L/
net/scratch1/dog/flash64/openmpi/openmpi-1.0.2-32b/lib -lmpi -lorte -
lopal -lutil -lnsl -ldl -Wl,--export-dynamic -lutil -lnsl -lm -ldl
(ffe-64 166%)
Next, I do an llogin to get some nodes and try to run:
(flashc 105%) mpiexec -n 4 ./send4
[flashc.lanl.gov:09921] mca: base: component_find: unable to open: /
lib/libc.so.6: version `GLIBC_2.3.4' not found (required by /net/
scratch1/dog/flash64/openmpi/openmpi-1.0.2-32b/lib/openmpi/
mca_paffinity_linux.so) (ignored)
[flashc.lanl.gov:09921] mca: base: component_find: unable to open:
libbproc.so.4: cannot open shared object file: No such file or
directory (ignored)
[flashc.lanl.gov:09921] mca: base: component_find: unable to open:
libbproc.so.4: cannot open shared object file: No such file or
directory (ignored)
[flashc.lanl.gov:09921] mca: base: component_find: unable to open:
libbproc.so.4: cannot open shared object file: No such file or
directory (ignored)
[flashc.lanl.gov:09921] mca: base: component_find: unable to open:
libbproc.so.4: cannot open shared object file: No such file or
directory (ignored)
[flashc.lanl.gov:09921] mca: base: component_find: unable to open:
libbproc.so.4: cannot open shared object file: No such file or
directory (ignored)
mpiexec: relocation error: /net/scratch1/dog/flash64/openmpi/
openmpi-1.0.2-32b/lib/openmpi/mca_soh_bproc.so: undefined symbol:
bproc_nodelist
The problem now looks like /lib/libc.so.6 is not longer available.
Indeed, it is available on the compiler nodes but it cannot be found
on the backend nodes - whoops!
The other problem is that the -m32 flag didn't make it into mpicc for
some reason.
-david
On Apr 10, 2006, at 8:41 AM, Brian Barrett wrote:
For Linux, this isn't too big of a problem, but you might want to
take a look at the output of "mpicc -showme" to get an idea of what
compiler flags / libraries would be added if you used the wrapper
compilers. I think for Linux the only one that might at all matter
is -pthread.
But I didn't mention it before because I'm pretty sure that's not the
issue...
Brian
On Apr 10, 2006, at 10:24 AM, David Gunter wrote:
The problem with doing it that way is that is disallows our in-hose
code teams from using their compilers of choice. Prior to open-mpi
we have been using LA-MPI. LA-MPI has always been compiled in such
a way that it wouldn't matter what other compilers were used to
build mpi applications provided the necessary include and lib files
were linked in the compilations.
-david
On Apr 10, 2006, at 8:00 AM, Ralph Castain wrote:
I'm not an expert on the configure system, but one thing jumps out
at me immediately - you used "gcc" to compile your program. You
really need to use "mpicc" to do so.
I think that might be the source of your errors.
Ralph
David Gunter wrote:
After much fiddling around, I managed to create a version of open-
mpi that would actually build. Unfortunately, I can't run the
simplest of applications with it. Here's the setup I used: export
CC=gcc export CXX=g++ export FC=gfortran export F77=gfortran
export CFLAGS="-m32" export CXXFLAGS="-m32" export FFLAGS="-m32"
export FCFLAGS="-m32" export LDFLAGS="-L/usr/lib" ./configure --
prefix=/net/scratch1/dog/flash64/openmpi/ openmpi-1.0.2-32b --
build=i686-pc-linux-gnu --with-bproc --with-g m --enable-io-romio
--with-romio --with-io-romio-flags='--build=i686- pc-linux-gnu'
Configure completes, as does 'make' and then 'make install'. Next
I tried to compile a simple MPI_Send test application, which
fails to run: (flashc 104%) gcc -m32 -I/net/scratch1/dog/flash64/
openmpi/ openmpi-1.0.2-32b/include -o send4 send4.c -L/net/
scratch1/dog/ flash64/openmpi/openmpi-1.0.2-32b/lib -lmpi /net/
scratch1/dog/flash64/openmpi/openmpi-1.0.2-32b/lib/libopal.so.0:
warning: epoll_wait is not implemented and will always fail /net/
scratch1/dog/flash64/openmpi/openmpi-1.0.2-32b/lib/libopal.so.0:
warning: epoll_ctl is not implemented and will always fail /net/
scratch1/dog/flash64/openmpi/openmpi-1.0.2-32b/lib/libopal.so.0:
warning: epoll_create is not implemented and will always fail
(flashc 105%) which mpiexec /net/scratch1/dog/flash64/openmpi/
openmpi-1.0.2-32b/bin/mpiexec (flashc 106%) mpiexec -n 4 ./send4
[flashc.lanl.gov:32373] mca: base: component_find: unable to
open: / lib/libc.so.6: version `GLIBC_2.3.4' not found (required
by /net/ scratch1/dog/flash64/openmpi/openmpi-1.0.2-32b/lib/
openmpi/ mca_paffinity_linux.so) (ignored) [flashc.lanl.gov:
32373] mca: base: component_find: unable to open: libbproc.so.4:
cannot open shared object file: No such file or directory
(ignored) [flashc.lanl.gov:32373] mca: base: component_find:
unable to open: libbproc.so.4: cannot open shared object file: No
such file or directory (ignored) [flashc.lanl.gov:32373] mca:
base: component_find: unable to open: libbproc.so.4: cannot open
shared object file: No such file or directory (ignored)
[flashc.lanl.gov:32373] mca: base: component_find: unable to
open: libbproc.so.4: cannot open shared object file: No such file
or directory (ignored) [flashc.lanl.gov:32373] mca: base:
component_find: unable to open: libbproc.so.4: cannot open shared
object file: No such file or directory (ignored) mpiexec:
relocation error: /net/scratch1/dog/flash64/openmpi/
openmpi-1.0.2-32b/lib/openmpi/mca_soh_bproc.so: undefined symbol:
bproc_nodelist I'm still open to suggestions. -david On Apr 10,
2006, at 7:11 AM, David R. (Chip) Kent IV wrote:
When running the tests, is the LD_LIBRARY_PATH getting set to
lib64 instead of lib or something like that? Chip On Sat, Apr
08, 2006 at 02:45:01AM -0600, David Gunter wrote:
I am trying to build a 32-bit compatible OpenMPI for our 64-bit
Bproc Opteron systems. I saw the thread from last August-
September 2005 regarding this but didn't see where it ever
succeeded or if any of the problems had been fixed. Most
importantly, romio is required to work as well. Is this
possible and how is it done? Here's what I have tried so far:
setenv CFLAGS -m32 setenv CXXFLAGS -m32 setenv FFLAGS -m32
setenv F90FLAGS -m32 I have used the '--build=i686-pc-linux-
gnu' option to the configure setup as well as --with-io-romio-
flags="--build=i686-pc-linux-gnu" configure halts with errors
when trying to run the Fortran 77 tests. If I remove those env
settings and just use the --build option, configure will
proceed to the end but the make will eventually halt with
errors due to a mix of lib64 libs being accessed at some point.
Any ideas? -david -- David Gunter CCN-8: HPC Environments:
Parallel Tools Team Los Alamos National Laboratory
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-- ----------------------------------------------------- David
R. "Chip" Kent IV Parallel Tools Team High Performance
Computing Environments Group (CCN-8) Los Alamos National
Laboratory (505)665-5021 drk...@lanl.gov
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