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Subject: [OMPI users] a question about network connection of open-mpi
From: zhuangchao (freeoser_at_[hidden])
Date: 2011-07-08 05:06:13


hello all :

       I run the following command :

/data1/cluster/openmpi/bin/mpirun -d -machinefile /tmp/nodes.10515.txt -np 3 /data1/cluster/mpiblast-pio-1.6/bin/mpiblast -p blastn -i /data1/cluster/sequences/seq_4.txt -d Baculo_Nucleotide -o /data1/cluster/blast.out/blast.out.10515 -g T -m 0 -F F

      Then I get the following error from openmpi:

[node7][[3812,1],2][btl_tcp_endpoint.c:638:mca_btl_tcp_endpoint_complete_connect] connect() to 192.168.0.5 failed: No route to host (113)
[node7][[3812,1],2][btl_tcp_endpoint.c:638:mca_btl_tcp_endpoint_complete_connect] connect() to 159.226.126.15 failed: No route to host (113)

     The machinefile is defined as following :
     
     node1
     node5
     node7

     192.168.0.5 is not the ip of hosts in the machinefile . 159.226.126.15 is the another ip of node1 . But hostname node1

corresponds to 11.11.11.1 in the /etc/hosts .

    why do I get the error ? Can you help me ?

       Thank you !