[mvapich-discuss] benchmark osu_bws run failed, on mvapich2-2.0rc1: gethostbyname: Unknown server error
Wang,Yanfei(SYS)
wangyanfei01 at baidu.com
Mon Mar 31 09:31:36 EDT 2014
Hi,
I am a fresh learner of MPI, and just try to do some verification on mVAPICH2 library on RoCE armed with mvapich2-2.0rc1 on MLNX_OFED_LINUX-2.1-1.0.6-rhel6.3-x86_64.
Could you give me some tips to fix this following issues.
Configuration:
[root at bb-nsi-ib04 pt2pt]# cat hosts_mvapich
ib03:1
ib04:1
[root at bb-nsi-ib04 pt2pt]# cat /etc/hosts
192.168.71.3 ib03
192.168.71.4 ib04
ERROR:
[root at bb-nsi-ib04 pt2pt]# mpirun_rsh -np 2 --hostfile hosts_mvapich osu_bw
gethostbyname: Unknown server error
[bb-nsi-ib04.*.com:mpirun_rsh][child_handler] Error in init phase, aborting! (0/2 mpispawn connections)
gethostbyname: Unknown server error
[root at bb-nsi-ib04 pt2pt]#
It could be caused by wrong configuration. Before on same platform I have do verification on OpenMPI with same RoCE configurations and similar host configurations.
Thanks.
-Yanfei
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