Thanks for the report. Can you try with master and see if the issue is fixed there?
-Nathan On Tue, May 12, 2015 at 04:38:01PM +0000, Friedley, Andrew wrote: > Hi, > > I've run into a problem with the IMB-RMA exchange_get test. At this point I > suspect it's an issue in Open MPI or the test itself. Could someone take a > look? > > I'm running Open MPI 1.8.5 and IMB 4.0.2. MVAPICH2 is able to run all of > IMB-RMA successfully. > > mpirun -np 4 -mca pml ob1 -mca btl tcp,sm,self ./IMB-RMA > > Eventually hangs at the end of exchange_get (after 4mb is reported) running > the np=2 pass. IMB runs every np power of 2 up to and including the np given > on the command line. So, with mpirun -np 4 above, IMB runs each of its tests > with np=2 and then with np=4. > > If I run just the exchange_get test, the same thing happens: > > mpirun -np 4 -mca pml ob1 -mca btl tcp,sm,self ./IMB-RMA exchange_get > > If I run either of the above commands with -np 2, IMB-RMA successfully runs > to completion. > > I have reproduced with tcp, verbs, and PSM -- does not appear to be transport > specific. MVAPICH2 2.0 works. > > Below are bracktraces from two of the four ranks. The other two ranks each > have a backtrace similar to these two. > > Thanks! > > Andrew > > #0 0x00007fca39a4c0c7 in sched_yield () from /lib64/libc.so.6 > #1 0x00007fca393ef2fb in opal_progress () at runtime/opal_progress.c:197 > #2 0x00007fca33cd21f5 in opal_condition_wait (m=0x247fc70, c=0x247fcd8) > at ../../../../opal/threads/condition.h:78 > #3 ompi_osc_rdma_flush_lock (module=module@entry=0x247fb50, lock=0x2481a20, > target=target@entry=3) at osc_rdma_passive_target.c:530 > #4 0x00007fca33cd43bd in ompi_osc_rdma_flush (target=3, win=0x2482150) > at osc_rdma_passive_target.c:578 > #5 0x00007fca39fe5654 in PMPI_Win_flush (rank=3, win=0x2482150) > at pwin_flush.c:58 > #6 0x000000000040aec5 in IMB_rma_exchange_get () > #7 0x0000000000406a35 in IMB_warm_up () > #8 0x00000000004023bd in main () > > #0 0x00007f1c81890bdd in poll () from /lib64/libc.so.6 > #1 0x00007f1c81271c86 in poll_dispatch (base=0x1be8350, tv=0x7fff4c323480) > at poll.c:165 > #2 0x00007f1c81269aa4 in opal_libevent2021_event_base_loop (base=0x1be8350, > flags=2) at event.c:1633 > #3 0x00007f1c812232e8 in opal_progress () at runtime/opal_progress.c:169 > #4 0x00007f1c7b9641f5 in opal_condition_wait (m=0x1ccf4a0, c=0x1ccf508) > at ../../../../opal/threads/condition.h:78 > #5 ompi_osc_rdma_flush_lock (module=module@entry=0x1ccf380, lock=0x23287f0, > target=target@entry=0) at osc_rdma_passive_target.c:530 > #6 0x00007f1c7b9663bd in ompi_osc_rdma_flush (target=0, win=0x2317d00) > at osc_rdma_passive_target.c:578 > #7 0x00007f1c81e19654 in PMPI_Win_flush (rank=0, win=0x2317d00) > at pwin_flush.c:58 > #8 0x000000000040aec5 in IMB_rma_exchange_get () > #9 0x0000000000406a35 in IMB_warm_up () > #10 0x00000000004023bd in main () > _______________________________________________ > devel mailing list > de...@open-mpi.org > Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/devel > Link to this post: > http://www.open-mpi.org/community/lists/devel/2015/05/17396.php
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