Re: [OMPI users] Subcommunicator communications do not complete intermittently

2022-09-12 Thread Niranda Perera via users
ls > like MUST [1] or Totalview. > > Best > Joachim > > > [1] https://itc.rwth-aachen.de/must/ > -- > *From:* users on behalf of George > Bosilca via users > *Sent:* Sunday, September 11, 2022 10:40:42 PM > *To:* Open MPI Users >

Re: [OMPI users] Subcommunicator communications do not complete intermittently

2022-09-11 Thread Protze, Joachim via users
/ From: users on behalf of George Bosilca via users Sent: Sunday, September 11, 2022 10:40:42 PM To: Open MPI Users Cc: George Bosilca Subject: Re: [OMPI users] Subcommunicator communications do not complete intermittently Assuming a correct implementation the described

Re: [OMPI users] Subcommunicator communications do not complete intermittently

2022-09-11 Thread George Bosilca via users
Assuming a correct implementation the described communication pattern should work seamlessly. Would it be possible to either share a reproducer or provide the execution stack by attaching a debugger to the deadlocked application to see the state of the different processes. I wonder if all processe

[OMPI users] Subcommunicator communications do not complete intermittently

2022-09-09 Thread Niranda Perera via users
Hi all, I have the following use case. I have N mpi ranks in the global communicator, and I split it into two, first being rank 0, and the other being all ranks from 1-->N-1. Rank0 acts as a master and ranks [1, N-1] act as workers. I use rank0 to broadcast (blocking) a set of values to ranks [1,