Dear All I found the solution!
run a bash script like #!/bin/bash for i in `seq -w 1 128` do outtext=`echo $i` outtext2=`ssh hpc$i "uptime"` echo hpc$outtext $outtext2 #logout done; to make sure, that all hosts are known Thus it was a cluster/bsub problem, not a julia specific one. regards Moritz On Thursday, 30 October 2014 09:45:40 UTC+2, moritz braun wrote: > > Dear All > > I am now testing the parallel execution of tasks in julia > using the > julia --machinefile file option. > The problem is it works sometimes > while sometimes I get the following error message: > ssh_askpass: exec(/usr/libexec/openssh/gnome-ssh-askpass): No such file or > directory > Host key verification failed. > > > Any hints as to what could be the reason for this are appreciated. > > > regards > > Moritz >