Re: [OMPI users] Randomly long (100ms vs 7000+ms) fulfillment of MPI_Ibcast

ursday, November 6, 2014 at 10:18 AM To: Open MPI Users <us...@open-mpi.org<mailto:us...@open-mpi.org>> Subject: Re: [OMPI users] Randomly long (100ms vs 7000+ms) fulfillment of MPI_Ibcast The CUDA person is now responding. I will try and reproduce. I looked through the zip file but d

Re: [OMPI users] Randomly long (100ms vs 7000+ms) fulfillment of MPI_Ibcast

pport or not. " Can you provide more detail about what that means? Thanks From: users [mailto:users-boun...@open-mpi.org] On Behalf Of Ralph Castain Sent: Thursday, November 06, 2014 1:05 PM To: Open MPI Users Subject: Re: [OMPI users] Randomly long (100ms vs 7000+ms) fulfillment of MPI_Ibcast I

Re: [OMPI users] Randomly long (100ms vs 7000+ms) fulfillment of MPI_Ibcast

eply-To: Open MPI Users <us...@open-mpi.org <mailto:us...@open-mpi.org>> > Date: Monday, November 3, 2014 at 10:02 AM > To: Open MPI Users <us...@open-mpi.org <mailto:us...@open-mpi.org>> > Subject: Re: [OMPI users] Randomly long (100ms vs 7000+ms) fulfillment of >

Re: [OMPI users] Randomly long (100ms vs 7000+ms) fulfillment of MPI_Ibcast

s...@open-mpi.org<mailto:us...@open-mpi.org>> Subject: Re: [OMPI users] Randomly long (100ms vs 7000+ms) fulfillment of MPI_Ibcast Which version of OMPI were you testing? On Nov 3, 2014, at 9:14 AM, Steven Eliuk <s.el...@samsung.com<mailto:s.el...@samsung.com>> wrote: Hello, We

Re: [OMPI users] Randomly long (100ms vs 7000+ms) fulfillment of MPI_Ibcast

Which version of OMPI were you testing? > On Nov 3, 2014, at 9:14 AM, Steven Eliuk wrote: > > Hello, > > We were using OpenMPI for some testing, everything works fine but randomly, > MPI_Ibcast() > takes long time to finish. We have a standalone program just to test it.

[OMPI users] Randomly long (100ms vs 7000+ms) fulfillment of MPI_Ibcast

Hello, We were using OpenMPI for some testing, everything works fine but randomly, MPI_Ibcast() takes long time to finish. We have a standalone program just to test it. The following is the profiling results of the simple test program on our cluster: Ibcast 604 mb takes 103 ms Ibcast 608 mb