I don't honestly think many of us have any knowledge of mpi4py. Does this test work with other MPIs?
MPI_Allgather seems to be passing our tests, so I suspect it is something in the binding. If you can provide the actual test, I'm willing to take a look at it. On May 23, 2012, at 2:52 PM, Bennet Fauber wrote: > I've installed the latest mpi4py-1.3 on several systems, and there is a > repeated bug when running > > $ mpirun -np 5 python test/runtests.py > > where it throws an error on mpigather with openmpi-1.4.4 and hangs with > openmpi-1.3. > > It runs to completion and passes all tests when run with -np of 2, 3, 4, 6, > 7, 8, 9, 10, 11, and 12. > > There is a thread on this at > > http://groups.google.com/group/mpi4py/browse_thread/thread/509ac46af6f79973 > > where others report being able to replicate, too. > > The compiler used first was gcc-4.6.2, with openmpi-1.4.4. > > These are all Red Hat machines, RHEL 5 or 6 and with multiple compilers and > versions of openmpi 1.3.0 and 1.4.4. > > Lisandro who is the primary developer of mpi4py is able to replicate on > Fedora 16. > > Someone else is able to reproduce with > > [ quoting from the groups.google.com page... ] > =============================================================== > It also happens with the current hg version of mpi4py and > $ rpm -qa openmpi gcc python > python-2.7.3-6.fc17.x86_64 > gcc-4.7.0-5.fc17.x86_64 > openmpi-1.5.4-5.fc17.1.x86_64 > =============================================================== > > So, I believe this is a bug to be reported. Per the advice at > > http://www.open-mpi.org/community/help/bugs.php > > If you feel that you do have a definite bug to report but are > unsure which list to post to, then post to the user's list. > > Please let me know if there is additional information that you need to > replicate. > > Some output is included below the signature in case it is useful. > > -- bennet > -- > East Hall Technical Services > Mathematics and Psychology Research Computing > University of Michigan > (734) 763-1182 > > On RHEL 5, openmpi 1.3, gcc 4.1.2, python 2.7 > > $ mpirun -np 5 --mca btl ^sm python test/runtests.py --verbose --no-threads > --include cco_obj_inter > [0...@sirocco.math.lsa.umich.edu] Python 2.7 > (/home/bennet/epd7.2.2/bin/python) > [0...@sirocco.math.lsa.umich.edu] MPI 2.0 (Open MPI 1.3.0) > [0...@sirocco.math.lsa.umich.edu] mpi4py 1.3 > (build/lib.linux-x86_64-2.7/mpi4py) > [1...@sirocco.math.lsa.umich.edu] Python 2.7 > (/home/bennet/epd7.2.2/bin/python) > [1...@sirocco.math.lsa.umich.edu] MPI 2.0 (Open MPI 1.3.0) > [1...@sirocco.math.lsa.umich.edu] mpi4py 1.3 > (build/lib.linux-x86_64-2.7/mpi4py) > [2...@sirocco.math.lsa.umich.edu] Python 2.7 > (/home/bennet/epd7.2.2/bin/python) > [2...@sirocco.math.lsa.umich.edu] MPI 2.0 (Open MPI 1.3.0) > [2...@sirocco.math.lsa.umich.edu] mpi4py 1.3 > (build/lib.linux-x86_64-2.7/mpi4py) > [3...@sirocco.math.lsa.umich.edu] Python 2.7 > (/home/bennet/epd7.2.2/bin/python) > [3...@sirocco.math.lsa.umich.edu] MPI 2.0 (Open MPI 1.3.0) > [3...@sirocco.math.lsa.umich.edu] mpi4py 1.3 > (build/lib.linux-x86_64-2.7/mpi4py) > [4...@sirocco.math.lsa.umich.edu] Python 2.7 > (/home/bennet/epd7.2.2/bin/python) > [4...@sirocco.math.lsa.umich.edu] MPI 2.0 (Open MPI 1.3.0) > [4...@sirocco.math.lsa.umich.edu] mpi4py 1.3 > (build/lib.linux-x86_64-2.7/mpi4py) > testAllgather (test_cco_obj_inter.TestCCOObjInter) ... testAllgather > (test_cco_obj_inter.TestCCOObjInter) ... testAllgather > (test_cco_obj_inter.TestCCOObjInter) ... testAllgather > (test_cco_obj_inter.TestCCOObjInter) ... testAllgather > (test_cco_obj_inter.TestCCOObjInter) ... > [ hangs ] > > RHEL5 > =================================================== > $ python > Python 2.6.6 (r266:84292, Sep 12 2011, 14:03:14) > [GCC 4.4.5 20110214 (Red Hat 4.4.5-6)] on linux2 > > $ gcc -v > Using built-in specs. > COLLECT_GCC=gcc > COLLECT_LTO_WRAPPER=/home/software/rhel6/gcc/4.7.0/libexec/gcc/x86_64- > unknown-linux-gnu/4.7.0/lto-wrapper > Target: x86_64-unknown-linux-gnu > Configured with: ../gcc-4.7.0/configure --prefix=/home/software/rhel6/ > gcc/4.7.0 --with-mpfr=/home/software/rhel6/gcc/mpfr-3.1.0/ --with-mpc=/ > home/software/rhel6/gcc/mpc-0.9/ --with-gmp=/home/software/rhel6/gcc/ > gmp-5.0.5/ --disable-multilib > Thread model: posix > gcc version 4.7.0 (GCC) > > $ mpirun -np 5 python test/runtests.py --verbose --no-threads --include > cco_obj_inter > [4...@host-rh6.engin.umich.edu] Python 2.6 (/usr/bin/python) > [4...@host-rh6.engin.umich.edu] MPI 2.1 (Open MPI 1.6.0) > [4...@host-rh6.engin.umich.edu] mpi4py 1.3 (build/lib.linux-x86_64-2.6/mpi4py) > [2...@host-rh6.engin.umich.edu] Python 2.6 (/usr/bin/python) > [2...@host-rh6.engin.umich.edu] MPI 2.1 (Open MPI 1.6.0) > [2...@host-rh6.engin.umich.edu] mpi4py 1.3 (build/lib.linux-x86_64-2.6/mpi4py) > [1...@host-rh6.engin.umich.edu] Python 2.6 (/usr/bin/python) > [1...@host-rh6.engin.umich.edu] MPI 2.1 (Open MPI 1.6.0) > [1...@host-rh6.engin.umich.edu] mpi4py 1.3 (build/lib.linux-x86_64-2.6/mpi4py) > [0...@host-rh6.engin.umich.edu] Python 2.6 (/usr/bin/python) > [0...@host-rh6.engin.umich.edu] MPI 2.1 (Open MPI 1.6.0) > [0...@host-rh6.engin.umich.edu] mpi4py 1.3 (build/lib.linux-x86_64-2.6/mpi4py) > [3...@host-rh6.engin.umich.edu] Python 2.6 (/usr/bin/python) > [3...@host-rh6.engin.umich.edu] MPI 2.1 (Open MPI 1.6.0) > [3...@host-rh6.engin.umich.edu] mpi4py 1.3 (build/lib.linux-x86_64-2.6/mpi4py) > testAllgather (test_cco_obj_inter.TestCCOObjInter) ... testAllgather > (test_cco_obj_inter.TestCCOObjInter) ... testAllgather > (test_cco_obj_inter.TestCCOObjInter) ... testAllgather > (test_cco_obj_inter.TestCCOObjInter) ... testAllgather > (test_cco_obj_inter.TestCCOObjInter) ... ERROR > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users
