Re: [OMPI users] Setting LD_LIBRARY_PATH for orted

2017-08-22 Thread Jackson, Gary L.
ARY_PATH > to the remote nodes prior to executing the command there. > > -- bennet > > > > On Tue, Aug 22, 2017 at 11:55 AM, Jackson, Gary L. > wrote: >> I’m using a build of OpenMPI provided by a third party. >> &g

Re: [OMPI users] Setting LD_LIBRARY_PATH for orted

2017-08-22 Thread Jackson, Gary L.
m-wide by adding the following line to /.../etc/openmpi-mca-params.conf orte_launch_agent = /.../myorted Cheers, Gilles On 8/22/2017 1:06 AM, Jackson, Gary L. wrote: > > I’m using a binary distribution of OpenMPI 1.10.2. As

[OMPI users] Setting LD_LIBRARY_PATH for orted

2017-08-21 Thread Jackson, Gary L.
I’m using a binary distribution of OpenMPI 1.10.2. As linked, it requires certain shared libraries outside of OpenMPI for orted itself to start. So, passing in LD_LIBRARY_PATH with the “-x” flag to mpirun doesn’t do anything: $ mpirun –hostfile ${HOSTFILE} -N 1 -n 2 -x LD_LIBRARY_PATH hostname

Re: [OMPI users] Poor performance on Amazon EC2 with TCP

2016-03-13 Thread Jackson, Gary L.
Gb network to tune. If you manage to tune it, I would like to get the values for the different MCA parameters so that out TCP BTL behaves optimally by default. Thanks, George. On Mar 10, 2016, at 11:45 , Jackson, Gary L. wrote: I re-ran all experiments with 1.10.2 configured the way you sp

Re: [OMPI users] Poor performance on Amazon EC2 with TCP

2016-03-10 Thread Jackson, Gary L.
On Tue, Mar 8, 2016 at 9:08 AM, Jackson, Gary L. <<mailto:gary.jack...@jhuapl.edu>gary.jack...@jhuapl.edu<mailto:gary.jack...@jhuapl.edu>> wrote: I've built OpenMPI 1.10.1 on Amazon EC2. Using NetPIPE, I'm seeing about half the performance for MPI over TCP as I do

Re: [OMPI users] Poor performance on Amazon EC2 with TCP

2016-03-08 Thread Jackson, Gary L.
Jason, how many Ethernet interfaces are there ? if several, can you try again with one only mpirun --mca btl_tcp_if_include eth0 ... Cheers, Gilles On Tuesday, March 8, 2016, Jackson, Gary L. wrote: I've built OpenMPI 1.10.1 on Amazon EC2. Using NetPIPE, I'm seeing abou

[OMPI users] Poor performance on Amazon EC2 with TCP

2016-03-08 Thread Jackson, Gary L.
I've built OpenMPI 1.10.1 on Amazon EC2. Using NetPIPE, I'm seeing about half the performance for MPI over TCP as I do with raw TCP. Before I start digging in to this more deeply, does anyone know what might cause that? For what it's worth, I see the same issues with MPICH, but I do not see it