Re: [OMPI users] Inter vs Intracommunicator...Who is the best?

It is currently better in Open MPI to do a merge and use intracommunications. Thanks, Graham. --- Dr Graham E. Fagg | Distributed, Parallel and Meta-Computing Innovative Computing Lab. PVM3.4, HARNESS, FT-MPI & Open MPI

Re: [OMPI users] SEGV in libopal during MPI_Alltoall

sers mailing list us...@open-mpi.org http://www.open-mpi.org/mailman/listinfo.cgi/users Thanks, Graham. ---------- Dr Graham E. Fagg | Distributed, Parallel and Meta-Computing Innovative Computing Lab. PVM3.4, HARNESS, FT-MP

Re: [OMPI users] MPI_Bcast/MPI_Finalize hang with Open MPI 1.1

t why it hangs.. let you know as soon as I find anything but right now I am testing using TCP. Can you let me know the exact path and LD_LIBRARY_PATH your using on odin? Thanks, Graham. -- Dr Graham E.

Re: [OMPI users] MPI_Bcast/MPI_Finalize hang with Open MPI 1.1

u get different answers on any of the nodes (other than their rank) then we (I) have a problem! Thanks, Graham. -- Dr Graham E. Fagg | Distributed, Parallel and Meta-Computing Innovative Computing Lab. PVM3.4, HARNESS, F

Re: [OMPI users] MPI_Bcast/MPI_Finalize hang with Open MPI 1.1

4 Cheers, Doug Gregor Thanks, Graham. ------ Dr Graham E. Fagg | Distributed, Parallel and Meta-Computing Innovative Computing Lab. PVM3.4, HARNESS, FT-MPI, SNIPE & Open MPI Computer Science Dept | Suite 203, 1122 Volunteer Blvd, University of Tenne

Re: [OMPI users] Compiling C++ program

http://www.open-mpi.org/mailman/listinfo.cgi/users ___ users mailing list us...@open-mpi.org http://www.open-mpi.org/mailman/listinfo.cgi/users Thanks, Graham. -- Dr Graham E.

Re: [OMPI users] MPI_IN_PLACE

en-mpi.org/mailman/listinfo.cgi/users Thanks, Graham. ---------- Dr Graham E. Fagg | Distributed, Parallel and Meta-Computing Innovative Computing Lab. PVM3.4, HARNESS, FT-MPI, SNIPE & Open MPI Computer Science Dept | Suite 203, 1122 Volunteer Blvd

Re: [OMPI users] fresh benchmarks for "alltoall"

ordering to reduce 'stress' on interconnect switches.) Thanks, Graham. --- Dr Graham E. Fagg | Distributed, Parallel and Meta-Computing Innovative Computing Lab. PVM3.4, HARNESS, FT-MPI & Open MPI Compute

Re: [O-MPI users] does btl_openib work with multiple ports ?

On Tue, 7 Feb 2006, Jean-Christophe Hugly wrote: On Thu, 2006-02-02 at 21:49 -0700, Galen M. Shipman wrote: I suspect the problem may be in the bcast, ompi_coll_tuned_bcast_intra_basic_linear. Can you try the same run using mpirun -prefix /opt/ompi -wdir `pwd` -machinefile /root/machines -np

Re: [O-MPI users] Performance of all-to-all on Gbit Ethernet

wrote: On Fri, 6 Jan 2006, Graham E Fagg wrote: Looks like the problem is somewhere in the tuned collectives? Unfortunately I need a logfile with exactly those :( Carsten I hope not. Carsten can you send me your configure line (not the whole log) and any other things your set in your .mca

Re: [O-MPI users] Performance of all-to-all on Gbit Ethernet

-2012302 eMail ckut...@gwdg.de http://www.gwdg.de/~ckutzne ___ users mailing list us...@open-mpi.org http://www.open-mpi.org/mailman/listinfo.cgi/users Thanks, Graham. -- Dr Graham E

Re: [O-MPI users] Performance of all-to-all on Gbit Ethernet

Dr Graham E. Fagg | Distributed, Parallel and Meta-Computing Innovative Computing Lab. PVM3.4, HARNESS, FT-MPI, SNIPE & Open MPI Computer Science Dept | Suite 203, 1122 Volunteer Blvd, University of Tennessee | Knoxville, Tennessee, USA. TN 37996-3450 Email: f...@cs.utk.edu | Phone:+1(

Re: [O-MPI users] Performance of all-to-all on Gbit Ethernet

I am currently visiting HLRS/Stuttgart so I will try and call you in an hour or so, if your leaving soon I can call you tomorrow morning? Thanks, Graham. ---------- Dr Graham E. Fagg | Distributed, Parallel and Meta-Compu

Re: [O-MPI users] Performance of all-to-all on Gbit Ethernet

previous email to you I stated that one of the alltoalls is a sendrecv pairbased implementation). Carsten Thanks, Graham. -- Dr Graham E. Fagg | Distributed, Parallel and Meta-Computing Innovative Computing Lab