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

20 Oct 2014

      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@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@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 ?

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

Alain Miniussi