Re: [OMPI users] How to yield CPU more when not computing (was curious behavior during wait for broadcast: 100% cpu)

On Mon, Nov 7, 2016 at 8:54 AM, Dave Love wrote: > > [Some time ago] > Jeff Hammond writes: > > > If you want to keep long-waiting MPI processes from clogging your CPU > > pipeline and heating up your machines, you can turn blocking MPI > >

Re: [OMPI users] mpi4py+OpenMPI: Qs about submitting bugs and examples

"r...@open-mpi.org" writes: >> Is this mailing list a good spot to submit bugs for OpenMPI? Or do I >> use github? > > You can use either - I would encourage the use of github “issues” when > you have a specific bug, and the mailing list for general questions I was told not

Re: [OMPI users] Redusing libmpi.so size....

Mahesh Nanavalla writes: > Hi all, > > I am using openmpi-1.10.3. > > openmpi-1.10.3 compiled for arm(cross compiled on X86_64 for openWRT > linux) libmpi.so.12.0.3 size is 2.4MB,but if i compiled on X86_64 (linux) > libmpi.so.12.0.3 size is 990.2KB. > > can

Re: [OMPI users] what was the rationale behind rank mapping by socket?

"r...@open-mpi.org" writes: > Yes, I’ve been hearing a growing number of complaints about cgroups for that > reason. Our mapping/ranking/binding options will work with the cgroup > envelope, but it generally winds up with a result that isn’t what the user > wanted or

Re: [OMPI users] How to yield CPU more when not computing (was curious behavior during wait for broadcast: 100% cpu)

[Some time ago] Jeff Hammond writes: > If you want to keep long-waiting MPI processes from clogging your CPU > pipeline and heating up your machines, you can turn blocking MPI > collectives into nicer ones by implementing them in terms of MPI-3 > nonblocking collectives

Re: [OMPI users] Having problem with the Master/Slave program...

Hi, master() never MPI_Bcast(dojob=2, c...), hence the hang Cheers, Gilles On Tuesday, November 8, 2016, Baris Kececi via users < users@lists.open-mpi.org> wrote: > Hi friends, > I'm trying to write a simple parallel master/slave program. > Here in my program the task of master is to

[OMPI users] Having problem with the Master/Slave program...

Hi friends,I'm trying to write a simple parallel master/slave program.Here in my program the task of master is to distribute a randomly filled array to the workers.And each worker have to print a part of the array. That's all what i want to do. The master need to make run the workers each time.