Hi Jeff, Please find enclosed the output (valgrind.out.gz) from /opt/openmpi-debug-1.4.2/bin/orterun -np 2 --host pbn11,pbn10 --mca btl openib,self --display-map --verbose --mca mpi_warn_on_fork 0 --mca btl_openib_want_fork_support 0 -tag-output /opt/valgrind-3.5.0/bin/valgrind --tool=memcheck --suppressions=/opt/openmpi-debug-1.4.2/share/openmpi/openmpi- valgrind.supp --suppressions=./suppressions.python.supp /opt/actran/bin/actranpy_mp ...
Thanks, Eloi On Tuesday 17 August 2010 09:32:53 Eloi Gaudry wrote: > On Monday 16 August 2010 19:14:47 Jeff Squyres wrote: > > On Aug 16, 2010, at 10:05 AM, Eloi Gaudry wrote: > > > I did run our application through valgrind but it couldn't find any > > > "Invalid write": there is a bunch of "Invalid read" (I'm using 1.4.2 > > > with the suppression file), "Use of uninitialized bytes" and > > > "Conditional jump depending on uninitialized bytes" in different ompi > > > routines. Some of them are located in btl_openib_component.c. I'll send > > > you an output of valgrind shortly. > > > > A lot of them in btl_openib_* are to be expected -- OpenFabrics uses > > OS-bypass methods for some of its memory, and therefore valgrind is > > unaware of them (and therefore incorrectly marks them as uninitialized). > > would it help if i use the upcoming 1.5 version of openmpi ? i read that a > huge effort has been done to clean-up the valgrind output ? but maybe that > this doesn't concern this btl (for the reasons you mentionned). > > > > Another question, you said that the callback function pointer should > > > never be 0. But can the tag be null (hdr->tag) ? > > > > The tag is not a pointer -- it's just an integer. > > I was worrying that its value could not be null. > > I'll send a valgrind output soon (i need to build libpython without > pymalloc first). > > Thanks, > Eloi > > > > Thanks for your help, > > > Eloi > > > > > > On 16/08/2010 18:22, Jeff Squyres wrote: > > >> Sorry for the delay in replying. > > >> > > >> Odd; the values of the callback function pointer should never be 0. > > >> This seems to suggest some kind of memory corruption is occurring. > > >> > > >> I don't know if it's possible, because the stack trace looks like > > >> you're calling through python, but can you run this application > > >> through valgrind, or some other memory-checking debugger? > > >> > > >> On Aug 10, 2010, at 7:15 AM, Eloi Gaudry wrote: > > >>> Hi, > > >>> > > >>> sorry, i just forgot to add the values of the function parameters: > > >>> (gdb) print reg->cbdata > > >>> $1 = (void *) 0x0 > > >>> (gdb) print openib_btl->super > > >>> $2 = {btl_component = 0x2b341edd7380, btl_eager_limit = 12288, > > >>> btl_rndv_eager_limit = 12288, btl_max_send_size = 65536, > > >>> btl_rdma_pipeline_send_length = 1048576, > > >>> > > >>> btl_rdma_pipeline_frag_size = 1048576, btl_min_rdma_pipeline_size = > > >>> 1060864, btl_exclusivity = 1024, btl_latency = 10, btl_bandwidth = > > >>> 800, btl_flags = 310, btl_add_procs = > > >>> 0x2b341eb8ee47<mca_btl_openib_add_procs>, btl_del_procs = > > >>> 0x2b341eb90156<mca_btl_openib_del_procs>, btl_register = 0, > > >>> btl_finalize = 0x2b341eb93186<mca_btl_openib_finalize>, btl_alloc = > > >>> 0x2b341eb90a3e<mca_btl_openib_alloc>, btl_free = > > >>> 0x2b341eb91400<mca_btl_openib_free>, btl_prepare_src = > > >>> 0x2b341eb91813<mca_btl_openib_prepare_src>, btl_prepare_dst = > > >>> 0x2b341eb91f2e<mca_btl_openib_prepare_dst>, btl_send = > > >>> 0x2b341eb94517<mca_btl_openib_send>, btl_sendi = > > >>> 0x2b341eb9340d<mca_btl_openib_sendi>, btl_put = > > >>> 0x2b341eb94660<mca_btl_openib_put>, btl_get = > > >>> 0x2b341eb94c4e<mca_btl_openib_get>, btl_dump = > > >>> 0x2b341acd45cb<mca_btl_base_dump>, btl_mpool = 0xf3f4110, > > >>> btl_register_error = > > >>> 0x2b341eb90565<mca_btl_openib_register_error_cb>, btl_ft_event = > > >>> 0x2b341eb952e7<mca_btl_openib_ft_event>} > > >>> > > >>> (gdb) print hdr->tag > > >>> $3 = 0 '\0' > > >>> (gdb) print des > > >>> $4 = (mca_btl_base_descriptor_t *) 0xf4a6700 > > >>> (gdb) print reg->cbfunc > > >>> $5 = (mca_btl_base_module_recv_cb_fn_t) 0 > > >>> > > >>> Eloi > > >>> > > >>> On Tuesday 10 August 2010 16:04:08 Eloi Gaudry wrote: > > >>>> Hi, > > >>>> > > >>>> Here is the output of a core file generated during a segmentation > > >>>> fault observed during a collective call (using openib): > > >>>> > > >>>> #0 0x0000000000000000 in ?? () > > >>>> (gdb) where > > >>>> #0 0x0000000000000000 in ?? () > > >>>> #1 0x00002aedbc4e05f4 in btl_openib_handle_incoming > > >>>> (openib_btl=0x1902f9b0, ep=0x1908a1c0, frag=0x190d9700, byte_len=18) > > >>>> at btl_openib_component.c:2881 #2 0x00002aedbc4e25e2 in handle_wc > > >>>> (device=0x19024ac0, cq=0, wc=0x7ffff279ce90) at > > >>>> btl_openib_component.c:3178 #3 0x00002aedbc4e2e9d in poll_device > > >>>> (device=0x19024ac0, count=2) at btl_openib_component.c:3318 #4 > > >>>> 0x00002aedbc4e34b8 in progress_one_device (device=0x19024ac0) at > > >>>> btl_openib_component.c:3426 #5 0x00002aedbc4e3561 in > > >>>> btl_openib_component_progress () at btl_openib_component.c:3451 #6 > > >>>> 0x00002aedb8b22ab8 in opal_progress () at > > >>>> runtime/opal_progress.c:207 #7 0x00002aedb859f497 in > > >>>> opal_condition_wait (c=0x2aedb888ccc0, m=0x2aedb888cd20) at > > >>>> ../opal/threads/condition.h:99 #8 > > >>>> 0x00002aedb859fa31 in ompi_request_default_wait_all (count=2, > > >>>> requests=0x7ffff279d0e0, statuses=0x0) at request/req_wait.c:262 #9 > > >>>> 0x00002aedbd7559ad in > > >>>> ompi_coll_tuned_allreduce_intra_recursivedoubling > > >>>> (sbuf=0x7ffff279d444, rbuf=0x7ffff279d440, count=1, dtype=0x6788220, > > >>>> op=0x6787a20, > > >>>> comm=0x19d81ff0, module=0x19d82b20) at coll_tuned_allreduce.c:223 > > >>>> #10 0x00002aedbd7514f7 in ompi_coll_tuned_allreduce_intra_dec_fixed > > >>>> (sbuf=0x7ffff279d444, rbuf=0x7ffff279d440, count=1, dtype=0x6788220, > > >>>> op=0x6787a20, comm=0x19d81ff0, module=0x19d82b20) at > > >>>> coll_tuned_decision_fixed.c:63 > > >>>> #11 0x00002aedb85c7792 in PMPI_Allreduce (sendbuf=0x7ffff279d444, > > >>>> recvbuf=0x7ffff279d440, count=1, datatype=0x6788220, op=0x6787a20, > > >>>> comm=0x19d81ff0) at pallreduce.c:102 #12 0x0000000004387dbf in > > >>>> FEMTown::MPI::Allreduce (sendbuf=0x7ffff279d444, > > >>>> recvbuf=0x7ffff279d440, count=1, datatype=0x6788220, op=0x6787a20, > > >>>> comm=0x19d81ff0) at stubs.cpp:626 #13 0x0000000004058be8 in > > >>>> FEMTown::Domain::align (itf= > > >>>> > > >>>> {<FEMTown::Boost::shared_base_ptr<FEMTown::Domain::Inter > > >>>> fa ce>> > > >>>> > > >>>> = {_vptr.shared_base_ptr = 0x7ffff279d620, ptr_ = {px = 0x199942a4, > > >>>> pn = {pi_ = 0x6}}},<No data fields>}) at interface.cpp:371 > > >>>> #14 0x00000000040cb858 in > > >>>> FEMTown::Field::detail::align_itfs_and_neighbhors (dim=2, set={px = > > >>>> 0x7ffff279d780, pn = {pi_ = 0x2f279d640}}, > > >>>> check_info=@0x7ffff279d7f0) at check.cpp:63 #15 0x00000000040cbfa8 > > >>>> in FEMTown::Field::align_elements (set={px = 0x7ffff279d950, pn = > > >>>> {pi_ = 0x66e08d0}}, check_info=@0x7ffff279d7f0) at check.cpp:159 > > >>>> #16 0x00000000039acdd4 in PyField_align_elements (self=0x0, > > >>>> args=0x2aaab0765050, kwds=0x19d2e950) at check.cpp:31 #17 > > >>>> 0x0000000001fbf76d in FEMTown::Main::ExErrCatch<_object* > > >>>> (*)(_object*, _object*, _object*)>::exec<_object> > > >>>> (this=0x7ffff279dc20, s=0x0, po1=0x2aaab0765050, po2=0x19d2e950) at > > >>>> /home/qa/svntop/femtown/modules/main/py/exception.hpp:463 > > >>>> #18 0x00000000039acc82 in PyField_align_elements_ewrap (self=0x0, > > >>>> args=0x2aaab0765050, kwds=0x19d2e950) at check.cpp:39 #19 > > >>>> 0x00000000044093a0 in PyEval_EvalFrameEx (f=0x19b52e90, > > >>>> throwflag=<value optimized out>) at Python/ceval.c:3921 #20 > > >>>> 0x000000000440aae9 in PyEval_EvalCodeEx (co=0x2aaab754ad50, > > >>>> globals=<value optimized out>, locals=<value optimized out>, > > >>>> args=0x3, argcount=1, kws=0x19ace4a0, kwcount=2, > > >>>> defs=0x2aaab75e4800, defcount=2, closure=0x0) at > > >>>> Python/ceval.c:2968 > > >>>> #21 0x0000000004408f58 in PyEval_EvalFrameEx (f=0x19ace2d0, > > >>>> throwflag=<value optimized out>) at Python/ceval.c:3802 #22 > > >>>> 0x000000000440aae9 in PyEval_EvalCodeEx (co=0x2aaab7550120, > > >>>> globals=<value optimized out>, locals=<value optimized out>, > > >>>> args=0x7, argcount=1, kws=0x19acc418, kwcount=3, > > >>>> defs=0x2aaab759e958, defcount=6, closure=0x0) at > > >>>> Python/ceval.c:2968 > > >>>> #23 0x0000000004408f58 in PyEval_EvalFrameEx (f=0x19acc1c0, > > >>>> throwflag=<value optimized out>) at Python/ceval.c:3802 #24 > > >>>> 0x000000000440aae9 in PyEval_EvalCodeEx (co=0x2aaab8b5e738, > > >>>> globals=<value optimized out>, locals=<value optimized out>, > > >>>> args=0x6, argcount=1, kws=0x19abd328, kwcount=5, > > >>>> defs=0x2aaab891b7e8, defcount=3, closure=0x0) at > > >>>> Python/ceval.c:2968 > > >>>> #25 0x0000000004408f58 in PyEval_EvalFrameEx (f=0x19abcea0, > > >>>> throwflag=<value optimized out>) at Python/ceval.c:3802 #26 > > >>>> 0x000000000440aae9 in PyEval_EvalCodeEx (co=0x2aaab3eb4198, > > >>>> globals=<value optimized out>, locals=<value optimized out>, > > >>>> args=0xb, argcount=1, kws=0x19a89df0, kwcount=10, defs=0x0, > > >>>> defcount=0, closure=0x0) at Python/ceval.c:2968 > > >>>> #27 0x0000000004408f58 in PyEval_EvalFrameEx (f=0x19a89c40, > > >>>> throwflag=<value optimized out>) at Python/ceval.c:3802 #28 > > >>>> 0x000000000440aae9 in PyEval_EvalCodeEx (co=0x2aaab3eb4288, > > >>>> globals=<value optimized out>, locals=<value optimized out>, > > >>>> args=0x1, argcount=0, kws=0x19a89330, kwcount=0, > > >>>> defs=0x2aaab8b66668, defcount=1, closure=0x0) at > > >>>> Python/ceval.c:2968 > > >>>> #29 0x0000000004408f58 in PyEval_EvalFrameEx (f=0x19a891b0, > > >>>> throwflag=<value optimized out>) at Python/ceval.c:3802 #30 > > >>>> 0x000000000440aae9 in PyEval_EvalCodeEx (co=0x2aaab8b6a738, > > >>>> globals=<value optimized out>, locals=<value optimized out>, > > >>>> args=0x0, argcount=0, kws=0x0, kwcount=0, defs=0x0, defcount=0, > > >>>> closure=0x0) at > > >>>> Python/ceval.c:2968 > > >>>> #31 0x000000000440ac02 in PyEval_EvalCode (co=0x1902f9b0, > > >>>> globals=0x0, locals=0x190d9700) at Python/ceval.c:522 #32 > > >>>> 0x000000000442853c in PyRun_StringFlags (str=0x192fd3d8 > > >>>> "DIRECT.Actran.main()", start=<value optimized out>, > > >>>> globals=0x192213d0, locals=0x192213d0, flags=0x0) at > > >>>> Python/pythonrun.c:1335 #33 0x0000000004429690 in > > >>>> PyRun_SimpleStringFlags (command=0x192fd3d8 "DIRECT.Actran.main()", > > >>>> flags=0x0) at > > >>>> Python/pythonrun.c:957 #34 0x0000000001fa1cf9 in > > >>>> FEMTown::Python::FEMPy::run_application (this=0x7ffff279f650) at > > >>>> fempy.cpp:873 #35 0x000000000434ce99 in FEMTown::Main::Batch::run > > >>>> (this=0x7ffff279f650) at batch.cpp:374 #36 0x0000000001f9aa25 in > > >>>> main (argc=8, argv=0x7ffff279fa48) at main.cpp:10 (gdb) f 1 > > >>>> #1 0x00002aedbc4e05f4 in btl_openib_handle_incoming > > >>>> (openib_btl=0x1902f9b0, ep=0x1908a1c0, frag=0x190d9700, byte_len=18) > > >>>> at btl_openib_component.c:2881 2881 reg->cbfunc( > > >>>> &openib_btl->super, hdr->tag, des, reg->cbdata ); Current language: > > >>>> auto; currently c > > >>>> (gdb) > > >>>> #1 0x00002aedbc4e05f4 in btl_openib_handle_incoming > > >>>> (openib_btl=0x1902f9b0, ep=0x1908a1c0, frag=0x190d9700, byte_len=18) > > >>>> at btl_openib_component.c:2881 2881 reg->cbfunc( > > >>>> &openib_btl->super, hdr->tag, des, reg->cbdata ); (gdb) l > > >>>> 2876 > > >>>> 2877 if(OPAL_LIKELY(!(is_credit_msg = > > >>>> is_credit_message(frag)))) { 2878 /* call registered > > >>>> callback */ > > >>>> 2879 mca_btl_active_message_callback_t* reg; > > >>>> 2880 reg = mca_btl_base_active_message_trigger + > > >>>> hdr->tag; 2881 reg->cbfunc(&openib_btl->super, hdr->tag, > > >>>> des, reg->cbdata ); 2882 > > >>>> if(MCA_BTL_OPENIB_RDMA_FRAG(frag)) { 2883 cqp = > > >>>> (hdr->credits>> 11)& 0x0f; > > >>>> 2884 hdr->credits&= 0x87ff; > > >>>> 2885 } else { > > >>>> > > >>>> Regards, > > >>>> Eloi > > >>>> > > >>>> On Friday 16 July 2010 16:01:02 Eloi Gaudry wrote: > > >>>>> Hi Edgar, > > >>>>> > > >>>>> The only difference I could observed was that the segmentation > > >>>>> fault appeared sometimes later during the parallel computation. > > >>>>> > > >>>>> I'm running out of idea here. I wish I could use the "--mca coll > > >>>>> tuned" with "--mca self,sm,tcp" so that I could check that the > > >>>>> issue is not somehow limited to the tuned collective routines. > > >>>>> > > >>>>> Thanks, > > >>>>> Eloi > > >>>>> > > >>>>> On Thursday 15 July 2010 17:24:24 Edgar Gabriel wrote: > > >>>>>> On 7/15/2010 10:18 AM, Eloi Gaudry wrote: > > >>>>>>> hi edgar, > > >>>>>>> > > >>>>>>> thanks for the tips, I'm gonna try this option as well. the > > >>>>>>> segmentation fault i'm observing always happened during a > > >>>>>>> collective communication indeed... does it basically switch all > > >>>>>>> collective communication to basic mode, right ? > > >>>>>>> > > >>>>>>> sorry for my ignorance, but what's a NCA ? > > >>>>>> > > >>>>>> sorry, I meant to type HCA (InifinBand networking card) > > >>>>>> > > >>>>>> Thanks > > >>>>>> Edgar > > >>>>>> > > >>>>>>> thanks, > > >>>>>>> éloi > > >>>>>>> > > >>>>>>> On Thursday 15 July 2010 16:20:54 Edgar Gabriel wrote: > > >>>>>>>> you could try first to use the algorithms in the basic module, > > >>>>>>>> e.g. > > >>>>>>>> > > >>>>>>>> mpirun -np x --mca coll basic ./mytest > > >>>>>>>> > > >>>>>>>> and see whether this makes a difference. I used to observe > > >>>>>>>> sometimes a (similar ?) problem in the openib btl triggered from > > >>>>>>>> the tuned collective component, in cases where the ofed > > >>>>>>>> libraries were installed but no NCA was found on a node. It > > >>>>>>>> used to work however with the basic component. > > >>>>>>>> > > >>>>>>>> Thanks > > >>>>>>>> Edgar > > >>>>>>>> > > >>>>>>>> On 7/15/2010 3:08 AM, Eloi Gaudry wrote: > > >>>>>>>>> hi Rolf, > > >>>>>>>>> > > >>>>>>>>> unfortunately, i couldn't get rid of that annoying segmentation > > >>>>>>>>> fault when selecting another bcast algorithm. i'm now going to > > >>>>>>>>> replace MPI_Bcast with a naive implementation (using MPI_Send > > >>>>>>>>> and MPI_Recv) and see if that helps. > > >>>>>>>>> > > >>>>>>>>> regards, > > >>>>>>>>> éloi > > >>>>>>>>> > > >>>>>>>>> On Wednesday 14 July 2010 10:59:53 Eloi Gaudry wrote: > > >>>>>>>>>> Hi Rolf, > > >>>>>>>>>> > > >>>>>>>>>> thanks for your input. You're right, I miss the > > >>>>>>>>>> coll_tuned_use_dynamic_rules option. > > >>>>>>>>>> > > >>>>>>>>>> I'll check if I the segmentation fault disappears when using > > >>>>>>>>>> the basic bcast linear algorithm using the proper command > > >>>>>>>>>> line you provided. > > >>>>>>>>>> > > >>>>>>>>>> Regards, > > >>>>>>>>>> Eloi > > >>>>>>>>>> > > >>>>>>>>>> On Tuesday 13 July 2010 20:39:59 Rolf vandeVaart wrote: > > >>>>>>>>>>> Hi Eloi: > > >>>>>>>>>>> To select the different bcast algorithms, you need to add an > > >>>>>>>>>>> extra mca parameter that tells the library to use dynamic > > >>>>>>>>>>> selection. --mca coll_tuned_use_dynamic_rules 1 > > >>>>>>>>>>> > > >>>>>>>>>>> One way to make sure you are typing this in correctly is to > > >>>>>>>>>>> use it with ompi_info. Do the following: > > >>>>>>>>>>> ompi_info -mca coll_tuned_use_dynamic_rules 1 --param coll > > >>>>>>>>>>> > > >>>>>>>>>>> You should see lots of output with all the different > > >>>>>>>>>>> algorithms that can be selected for the various collectives. > > >>>>>>>>>>> Therefore, you need this: > > >>>>>>>>>>> > > >>>>>>>>>>> --mca coll_tuned_use_dynamic_rules 1 --mca > > >>>>>>>>>>> coll_tuned_bcast_algorithm 1 > > >>>>>>>>>>> > > >>>>>>>>>>> Rolf > > >>>>>>>>>>> > > >>>>>>>>>>> On 07/13/10 11:28, Eloi Gaudry wrote: > > >>>>>>>>>>>> Hi, > > >>>>>>>>>>>> > > >>>>>>>>>>>> I've found that "--mca coll_tuned_bcast_algorithm 1" allowed > > >>>>>>>>>>>> to switch to the basic linear algorithm. Anyway whatever the > > >>>>>>>>>>>> algorithm used, the segmentation fault remains. > > >>>>>>>>>>>> > > >>>>>>>>>>>> Does anyone could give some advice on ways to diagnose the > > >>>>>>>>>>>> issue I'm facing ? > > >>>>>>>>>>>> > > >>>>>>>>>>>> Regards, > > >>>>>>>>>>>> Eloi > > >>>>>>>>>>>> > > >>>>>>>>>>>> On Monday 12 July 2010 10:53:58 Eloi Gaudry wrote: > > >>>>>>>>>>>>> Hi, > > >>>>>>>>>>>>> > > >>>>>>>>>>>>> I'm focusing on the MPI_Bcast routine that seems to > > >>>>>>>>>>>>> randomly segfault when using the openib btl. I'd like to > > >>>>>>>>>>>>> know if there is any way to make OpenMPI switch to a > > >>>>>>>>>>>>> different algorithm than the default one being selected > > >>>>>>>>>>>>> for MPI_Bcast. > > >>>>>>>>>>>>> > > >>>>>>>>>>>>> Thanks for your help, > > >>>>>>>>>>>>> Eloi > > >>>>>>>>>>>>> > > >>>>>>>>>>>>> On Friday 02 July 2010 11:06:52 Eloi Gaudry wrote: > > >>>>>>>>>>>>>> Hi, > > >>>>>>>>>>>>>> > > >>>>>>>>>>>>>> I'm observing a random segmentation fault during an > > >>>>>>>>>>>>>> internode parallel computation involving the openib btl > > >>>>>>>>>>>>>> and OpenMPI-1.4.2 (the same issue can be observed with > > >>>>>>>>>>>>>> OpenMPI-1.3.3). > > >>>>>>>>>>>>>> > > >>>>>>>>>>>>>> mpirun (Open MPI) 1.4.2 > > >>>>>>>>>>>>>> Report bugs to http://www.open-mpi.org/community/help/ > > >>>>>>>>>>>>>> [pbn08:02624] *** Process received signal *** > > >>>>>>>>>>>>>> [pbn08:02624] Signal: Segmentation fault (11) > > >>>>>>>>>>>>>> [pbn08:02624] Signal code: Address not mapped (1) > > >>>>>>>>>>>>>> [pbn08:02624] Failing at address: (nil) > > >>>>>>>>>>>>>> [pbn08:02624] [ 0] /lib64/libpthread.so.0 > > >>>>>>>>>>>>>> [0x349540e4c0] [pbn08:02624] *** End of error message > > >>>>>>>>>>>>>> *** > > >>>>>>>>>>>>>> sh: line 1: 2624 Segmentation fault > > >>>>>>>>>>>>>> > > >>>>>>>>>>>>>> \/share\/hpc3\/actran_suite\/Actran_11\.0\.rc2\.41872\/Red > > >>>>>>>>>>>>>> Ha tE L\ -5 \/ x 86 _6 4\ /bin\/actranpy_mp > > >>>>>>>>>>>>>> '--apl=/share/hpc3/actran_suite/Actran_11.0.rc2.41872/RedH > > >>>>>>>>>>>>>> at EL -5 /x 86 _ 64 /A c tran_11.0.rc2.41872' > > >>>>>>>>>>>>>> '--inputfile=/work/st25652/LSF_130073_0_47696_0/Case1_3Dre > > >>>>>>>>>>>>>> al _m 4_ n2 .d a t' > > >>>>>>>>>>>>>> '--scratch=/scratch/st25652/LSF_130073_0_47696_0/scratch' > > >>>>>>>>>>>>>> '--mem=3200' '--threads=1' '--errorlevel=FATAL' > > >>>>>>>>>>>>>> '--t_max=0.1' '--parallel=domain' > > >>>>>>>>>>>>>> > > >>>>>>>>>>>>>> If I choose not to use the openib btl (by using --mca btl > > >>>>>>>>>>>>>> self,sm,tcp on the command line, for instance), I don't > > >>>>>>>>>>>>>> encounter any problem and the parallel computation runs > > >>>>>>>>>>>>>> flawlessly. > > >>>>>>>>>>>>>> > > >>>>>>>>>>>>>> I would like to get some help to be able: > > >>>>>>>>>>>>>> - to diagnose the issue I'm facing with the openib btl > > >>>>>>>>>>>>>> - understand why this issue is observed only when using > > >>>>>>>>>>>>>> the openib btl and not when using self,sm,tcp > > >>>>>>>>>>>>>> > > >>>>>>>>>>>>>> Any help would be very much appreciated. > > >>>>>>>>>>>>>> > > >>>>>>>>>>>>>> The outputs of ompi_info and the configure scripts of > > >>>>>>>>>>>>>> OpenMPI are enclosed to this email, and some information > > >>>>>>>>>>>>>> on the infiniband drivers as well. > > >>>>>>>>>>>>>> > > >>>>>>>>>>>>>> Here is the command line used when launching a parallel > > >>>>>>>>>>>>>> computation > > >>>>>>>>>>>>>> > > >>>>>>>>>>>>>> using infiniband: > > >>>>>>>>>>>>>> path_to_openmpi/bin/mpirun -np $NPROCESS --hostfile > > >>>>>>>>>>>>>> host.list --mca > > >>>>>>>>>>>>>> > > >>>>>>>>>>>>>> btl openib,sm,self,tcp --display-map --verbose --version > > >>>>>>>>>>>>>> --mca mpi_warn_on_fork 0 --mca > > >>>>>>>>>>>>>> btl_openib_want_fork_support 0 [...] > > >>>>>>>>>>>>>> > > >>>>>>>>>>>>>> and the command line used if not using infiniband: > > >>>>>>>>>>>>>> path_to_openmpi/bin/mpirun -np $NPROCESS --hostfile > > >>>>>>>>>>>>>> host.list --mca > > >>>>>>>>>>>>>> > > >>>>>>>>>>>>>> btl self,sm,tcp --display-map --verbose --version --mca > > >>>>>>>>>>>>>> mpi_warn_on_fork 0 --mca btl_openib_want_fork_support 0 > > >>>>>>>>>>>>>> [...] > > >>>>>>>>>>>>>> > > >>>>>>>>>>>>>> Thanks, > > >>>>>>>>>>>>>> Eloi > > >>>>>>>>>>>> > > >>>>>>>>>>>> _______________________________________________ > > >>>>>>>>>>>> users mailing list > > >>>>>>>>>>>> us...@open-mpi.org > > >>>>>>>>>>>> http://www.open-mpi.org/mailman/listinfo.cgi/users > > >>> > > >>> -- > > >>> > > >>> > > >>> Eloi Gaudry > > >>> > > >>> Free Field Technologies > > >>> Company Website: http://www.fft.be > > >>> Company Phone: +32 10 487 959 > > >>> > > >>> _______________________________________________ > > >>> users mailing list > > >>> us...@open-mpi.org > > >>> http://www.open-mpi.org/mailman/listinfo.cgi/user > > > > > > _______________________________________________ > > > users mailing list > > > us...@open-mpi.org > > > http://www.open-mpi.org/mailman/listinfo.cgi/users -- Eloi Gaudry Free Field Technologies Company Website: http://www.fft.be Company Phone: +32 10 487 959
valgrind.out.gz
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