Dear All,
I am studying Groups and Communicators, but before start going in detail, I
have a question about groups.
I would like to know if is it possible to create a group of masters of the
other groups and then a intra-communication in the new group. I have spent
sometime reading different tuto
Hi all,
I'm working to understand signal handling in OpenMPI. I read that "Open MPI
will forward SIGUSR1 and SIGUSR2 from mpiexec to the other processes". My
question is that is this feature enabled by default installation.
The scenario is that one MPI process raises a SIGUSR1, which has to be
de
Diego,
Assuming you have some common grounds between the 4 initial groups
(otherwise you will have to connect them via
MPI_Comm_connect/MPI_Comm_accept) you can merge the 4 groups together and
then use any MPI mechanism to create a partial group of leaders (such as
MPI_Comm_split).
If you spawn
I’m afraid we don’t currently support that use-case. We forward signals sent by
the user to mpiexec (i.e., the user “hits” mpiexec with a signal), but we don’t
do anything to support an application proc attempting to raise a signal and
asking it to be propagated.
If you are using OMPI master, o
Even this method of raising signal from user to mpiexec results in signal
handling by only one process. I've modified my earlier example where each
process publishes its pid, and I capture the pid and raise the signal using
'kill -SIGUSR1 ' from another terminal.
// test.c
void handle_signal(int
Again, you are sending the signal to just the one process whose pid you
specified. We don’t pick that signal up and propagate it. If you signal the pid
of mpiexec itself, then you’d see every proc report it.
> On Jul 25, 2017, at 11:40 AM, Marc Cooper wrote:
>
> Even this method of raising sig
Got it. I now see each proc reporting the signal. Thank you.
On 25 July 2017 at 11:45, r...@open-mpi.org wrote:
> Again, you are sending the signal to just the one process whose pid you
> specified. We don’t pick that signal up and propagate it. If you signal the
> pid of mpiexec itself, then yo
I have several questions about integration of openmpi with resource queuing
systems.
1.
I understand that openmpi supports integration with various resource
distribution systems such as SGE, LSF, torque etc.
I need to build an openmpi application that can interact with variety of
different res
> On Jul 25, 2017, at 3:48 PM, Kulshrestha, Vipul
> wrote:
>
> I have several questions about integration of openmpi with resource queuing
> systems.
>
> 1.
> I understand that openmpi supports integration with various resource
> distribution systems such as SGE, LSF, torque etc.
>
> I ne