[OMPI users] a question about network connection of open-mpi

[zhuangchao]

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 !