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

2006-06-29 Thread Doug Gregor
o allocate the nodes before executing mpirun: srun -A -N 4 Cheers, Doug Gregor broadcast_skeleton_content.cpp Description: Binary data ompi_info.log Description: Binary data

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

2006-06-29 Thread Doug Gregor
On Jun 29, 2006, at 5:23 PM, Graham E Fagg wrote: Hi Doug wow, looks like some messages are getting lost (or even delivered to the wrong peer on the same node.. ) Could you also try with: -mca coll_base_verbose 1 -mca coll_tuned_use_dynamic_rules 1 -mca coll_tuned_bcast_algorithm <1,2,3,

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

2006-06-30 Thread Doug Gregor
On Jun 29, 2006, at 11:16 PM, Graham E Fagg wrote: On Thu, 29 Jun 2006, Doug Gregor wrote: When I use algorithm 6, I get: [odin003.cs.indiana.edu:14174] *** An error occurred in MPI_Bcast [odin005.cs.indiana.edu:10510] *** An error occurred in MPI_Bcast Broadcasting integers from root 0

[OMPI users] Big improvements in derived datatype performance on 1.2

2006-12-15 Thread Doug Gregor
Hi all, While doing some benchmarking with derived data types, I found that the prerelease Open MPI 1.2 is giving *much* better performance than Open MPI 1.1. My simple benchmark is a modified NetPIPE that sends/ receives data via a derived data type build with MPI_Contiguous(1, MPI_BYTE,

Re: [OMPI users] Big improvements in derived datatype performance on 1.2

2006-12-18 Thread Doug Gregor
Hi George, On Dec 15, 2006, at 4:05 PM, George Bosilca wrote: Thanks for the graph. I was wondering how do we compare with the others MPI implementations. If you have others MPI installed on your cluster can you do the same measurements with them and augment your graph with the results ? Here'

Re: [OMPI users] OpenMPI C++ serialisation

2007-02-08 Thread Doug Gregor
On Feb 8, 2007, at 4:01 AM, Alok G Singh wrote: I also came across a presentation [2] from PVM/MPI 06, but I could find any code to go with it. The author seems to suggest the Boost serialisation library (which does support stdlib containers). Is this the way to go ? I have never used to Boost b