Dear OpenMPI users Relative indexing error occurs in my CentOS small cluster. What and where should I check ?
Environment: - 4node GbE cluster (CentOS 6.7) - OpenMPI 1.8.7 (builded usin system compiler, gcc version 4.4.7 20120313 and installed /usr/local/openmpi-1.8.7) - use ssh without password authentification (using RSA key) This is "myhosts" file: -------------- ensis10 slots=4 ensis12 slots=6 ensis13 slots=6 ensis14 slots=6 -------------- Command line and error messgae: $ mpirun --hostfile ./myhosts -np 4 -host +n2 hostname -------------------------------------------------------------------------- A relative host was specified, but no prior allocation has been made. Thus, there is no way to determine the proper host to be used. -host: +n2 Please see the orte_hosts man page for further information. -------------------------------------------------------------------------- # In case of direct hostname specification, it works fine such as: # [@ensis10] $ mpirun --hostfile ./myhosts -np 4 -host ensis12 hostname # ensis12 # ensis12 # ensis12 # ensis12 # Thanks in advance -- S.Wakashima (waku2...@gmail.com)
