Hi all, Trying to run OpenMPI ( trunk Revision: 32428 ) I faced the problem running OMPI with more than 65 procs. It looks like MPI failes to open 66th connection even with running `hostname` over tcp. It also seems to unrelated to specific host. All hosts are Ubuntu 12.04.1 LTS
mpirun -np 66 --hostfile /proj/SSA/Mellanox/tmp//20140810_070156_hostfile.txt --mca btl tcp,self hostname [nodename] [[4452,0],65] ORTE_ERROR_LOG: Error in file base/ess_base_std_orted.c at line 288 ....................................... It looks like environment issue, but I can't find any limit related. Any ideas ? Thanks. Lenny Verkhovsky SW Engineer, Mellanox Technologies www.mellanox.com<http://www.mellanox.com> Office: +972 74 712 9244 Mobile: +972 54 554 0233 Fax: +972 72 257 9400
