Re: [Boost-users] [EXTERNAL] bjam hangs on select (in develop branch)

Subject: Re: [Boost-users] [EXTERNAL] bjam hangs on select (in develop branch)
From: Belcourt, Kenneth (kbelco_at_[hidden])
Date: 2014-10-20 13:10:35

Hi Alian,

I’ve seen this problem before but it appears to affect very few people so I’ve not needed to fix it.  Perhaps the time has come to address it.

Was bjam passed a -j option, if so, what was it?

— Noel

On Oct 20, 2014, at 9:33 AM, Alain Miniussi <alain.miniussi_at_oca.eu> wrote:

> 
> Hi,
> 
> I am trying to test Boost.MPI with Intel's implementation and I am stuck while trying to run simple tests through bjam.
> Bjam is hangs on the select (not pselect ?) instruction of the unix exec_wait.
> As far as processes are concerned:
> 
>  PID USER      PR  NI S %CPU    TIME+   PPID COMMAND
>      .......................
> 16882 alainm    20   0 S  0.0   0:01.61  6507 bjam
> 16899 alainm    20   0 T  0.0   0:00.00 16882 sh
> 16900 alainm    20   0 Z  0.0   0:00.00 16899 mpiexec.hydra <defunct>
> .......
> 
> bjam calls a generated shell (below) which calls a mpiexe.hydra which work perfectly fine outside bjam.
> The mpiexec.hydra dies the the shell refuses to let it go.
> 
> the shell script, generated by bjam, is:
> 
> ===============================================
> [alainm_at_gurney engine]$ more /proc/16899/cmdline
> /bin/sh
> LD_LIBRARY_PATH="/gpfs/scratch/alainm/view/boost/bin.v2/libs/mpi/build/intel-linux/debug:/gpfs/scratch/alainm/view/boost/bin.v2/libs/serialization/build/intel-linux/debug:/softs/
> intel/composer_xe_2015.0.090/bin/lib:/softs/intel/composer_xe_2015.0.090/lib/intel64:$LD_LIBRARY_PATH"
> export LD_LIBRARY_PATH
> 
>    status=0
>    if test $status -ne 0 ; then
>        echo Skipping test execution due to testing.execute=off
>        exit 0
>    fi
>    mpiexec.hydra -n 2 "../../../bin.v2/libs/mpi/test/broadcast_stl_test-2.test/intel-linux/debug/broadcast_stl_test-2" blob  > "../../../bin.v2/libs/mpi/test/broadcast_stl_test-2.te
> st/intel-linux/debug/broadcast_stl_test-2-run.output" 2>&1
>    status=$?
>    echo >> "../../../bin.v2/libs/mpi/test/broadcast_stl_test-2.test/intel-linux/debug/broadcast_stl_test-2-run.output"
>    echo EXIT STATUS: $status >> "../../../bin.v2/libs/mpi/test/broadcast_stl_test-2.test/intel-linux/debug/broadcast_stl_test-2-run.output"
>    if test $status -eq 0 ; then
>        cp "../../../bin.v2/libs/mpi/test/broadcast_stl_test-2.test/intel-linux/debug/broadcast_stl_test-2-run.output" "../../../bin.v2/libs/mpi/test/broadcast_stl_test-2.test/intel-
> linux/debug/broadcast_stl_test-2-run"
>    fi
>    verbose=0
>    if test $status -ne 0 ; then
>        verbose=1
>    fi
>    if test $verbose -eq 1 ; then
>        echo ====== BEGIN OUTPUT ======
>        cat "../../../bin.v2/libs/mpi/test/broadcast_stl_test-2.test/intel-linux/debug/broadcast_stl_test-2-run.output"
>        echo ====== END OUTPUT ======
>    fi
>    exit $status
> 
> [alainm_at_gurney engine]$
> =================================================
> 
> 
> Note that select only test for the subprocess output, at the hanging point mpiexec.hydra is done with its outputs.
> 
> Any idea ?
> 
> Alain
> 
> PS: there was a cmake based project some time ago, is it still active or is bjam here to stay ?
> 
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