[OMPI users] libevent hangs on app finalize stage

Hi all. I believe there is a bug in event_base_loop() function from file event.c (opal/mca/event/libevent2022/libevent/). Consider the case when application is going to be finalized and both event_base_loop() and event_base_loopbreak() are called in the same time in parallel threads. Then

Re: [OMPI users] Valgrind reports a plenty of Invalid read's in osc_rdma_data_move.c

Hi Nathan, surely, OpenMPI was compiled with the Valgrind support: %/opt/mpi/openmpi-1.8.4.dbg/bin/ompi_info | grep -i memchecker MCA memchecker: valgrind (MCA v2.0, API v2.0, Component v1.8.4) The following configure options were used: --enable-mem-debug --enable-debug

Re: [OMPI users] MPI_type_create_struct + MPI_Type_vector + MPI_Type_contiguous

Dear Gus, Dear all, Thanks a lot. MPI_Type_Struct works well for the first part of my problem, so I am very happy to be able to use it. Regarding MPI_TYPE_VECTOR. I have studied it and for simple case it is clear to me what id does (at least I believe). Foe example if I have a matrix define as:

Re: [OMPI users] libevent hangs on app finalize stage

Thought about this some more and realized that the orte progress engine wasn’t using the opal_progress_thread support functions, which include a “break” event to kick us out of just such problems. So I changed it on the master. From your citing of libevent 2.0.22, I believe that must be where

[OMPI users] mpirun hangs without internet connection

I have installed OpenMPI 1.6.5 under cygwin. When trying test example $mpirun hello or, e.g., more complex examples from scalapack, such as $mpirun -np 4 xslu everything works fine when there is an internet connection. However, when the cable is disconnected, mpirun hangs without any error

Re: [OMPI users] mpirun hangs without internet connection

On 1/15/2015 5:39 PM, Klara Hornisova wrote: I have installed OpenMPI 1.6.5 under cygwin. When trying test example $mpirun hello current cygwin package is 1.8.4-1, could you test it ? or, e.g., more complex examples from scalapack, such as $mpirun -np 4 xslu everything works fine when

Re: [OMPI users] libevent hangs on app finalize stage

Hi Ralph. Of course that may indicate an issue with custom compiler, but given that it fails with gcc and inserted delay I still think it is a OMPI bug, since such a delay could be caused by operating system at that exact point. For me simply commenting out "base->event_gotterm =

Re: [OMPI users] libevent hangs on app finalize stage

Hmmm…I’m not seeing a failure. Let me try on another system. Modifying libevent is not a viable solution :-( > On Jan 15, 2015, at 10:26 AM, Leonid wrote: > > Hi Ralph. > > Of course that may indicate an issue with custom compiler, but given that it > fails with gcc

Re: [OMPI users] libevent hangs on app finalize stage

Ah, indeed - I found the problem. Fix coming momentarily > On Jan 15, 2015, at 10:31 AM, Ralph Castain wrote: > > Hmmm…I’m not seeing a failure. Let me try on another system. > > > Modifying libevent is not a viable solution :-( > > >> On Jan 15, 2015, at 10:26 AM, Leonid

Re: [OMPI users] libevent hangs on app finalize stage

Fixed - sorry about that! > On Jan 15, 2015, at 10:39 AM, Ralph Castain wrote: > > Ah, indeed - I found the problem. Fix coming momentarily > >> On Jan 15, 2015, at 10:31 AM, Ralph Castain wrote: >> >> Hmmm…I’m not seeing a failure. Let me try on

Re: [OMPI users] MPI_type_create_struct + MPI_Type_vector + MPI_Type_contiguous

> On Jan 15, 2015, at 06:02 , Diego Avesani wrote: > > Dear Gus, Dear all, > Thanks a lot. > MPI_Type_Struct works well for the first part of my problem, so I am very > happy to be able to use it. > > Regarding MPI_TYPE_VECTOR. > > I have studied it and for simple

Re: [OMPI users] MPI_type_create_struct + MPI_Type_vector + MPI_Type_contiguous

dear George, dear Gus, dear all, Could you please tell me where I can find a good example? I am sorry but I can not understand the 3D array. Really Thanks Diego On 15 January 2015 at 20:13, George Bosilca wrote: > > On Jan 15, 2015, at 06:02 , Diego Avesani

Re: [OMPI users] MPI_type_create_struct + MPI_Type_vector + MPI_Type_contiguous

I never used MPI_Type_create_subarray, only MPI_Type_Vector. What I like about MPI_Type_Vector is that you can define a stride, hence you can address any regular pattern in memory. However, it envisages the array layout in memory as a big 1-D array, with a linear index progressing in either