I am running the benchmark b_eff on a mulitprocessor opteron based system. The benchmark measures throughput. And the benchmark runs fine over tcp/ip and myrinet on cluster of 2 a 4 cores. When I run the application on an 8core system over 2 cpus the run is fine. When I run it over say 4 or more I get the error:
/opt/ompi/bin/mpirun -np 4 -machinefile myh -mca btl tcp,self b_eff I get sometimes an error such as ERROR - invalid message content after MPI_Alltoallv - myrank=1 i_rep=0 i_msg=15 i_pat=14 i_sr=1 i_loop=5 Msglng=71468 buf=(16 0)!=(16 31) But not always. I searched the FAQs, could not find an entry with a similar error. Any idea? Lydia ------------------------------------------ Dr E L Heck University of Durham Institute for Computational Cosmology Ogden Centre Department of Physics South Road DURHAM, DH1 3LE United Kingdom e-mail: lydia.h...@durham.ac.uk Tel.: + 44 191 - 334 3628 Fax.: + 44 191 - 334 3645 ___________________________________________
