I have a parallel setup of 6 identical machines with Linux mint 18, ssh and openmpi.
when i execute this, mpiexec -np 16 --hostfile mpi-hostfile namd2 apoa1.namd > apoa1.log with following host file localhost slots=4 slave1 slots=4 slave2 slots=4 slave3 slots=4 slave4 slots=4 slave5 slots=4 it gives error ssh: Could not resolve hostname slave3: Temporary failure in name resolution ssh: Could not resolve hostname slave4: Temporary failure in name resolution ssh: Could not resolve hostname slave5: Temporary failure in name resolution and if comment slave3,4,5 and run mpiexec -np 12.... it works fine if I changed the order, then it runs with first 3 host names. is there any limitation with openmpi? or any idea to solve this? -- kind regards, -Madhuranga Rathnayake | මධුරංග රත්නායක-
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