Hi guys, am new to cluster computing, so please bear with me. currently trying to utilize the available desktops found in labs.
Started trying out 2 labs, (namely Lab A which have 192.168.0.xx IPs and Lab B which have public IPs 202.185.77.xx series) Have been running Paraview in Lab A without any problem so far. (mpirun -np 18 -machinefile quad_lan pvserver) As i tried to extend the cluster to Lab B's desktops, by specifying their IPs in my machinefile like: 202.185.77.110 slots=4 max-slots=4 *#(eth1 = 202.185.77.110; eth0 = 192.168.0.10)* 202.185.77.219 slots=2 max-slots=2 *<-- this is "pc226*" 192.168.0.227 slots=2 max-slots=2 my programs hangs while my client tries to connect to the pvserver. if i wait long enough, it will show the error yewyong@vrc1:~/installer/mpi_test> mpirun -np 8 -machinefile quad_hama pvserver --use-offscreen-rendering Listen on port: 11111 Waiting for client... Client connected. [pc226][[8636,1],6][btl_tcp_endpoint.c:631:mca_btl_tcp_endpoint_complete_connect] connect() failed: Connection timed out (110) note that when running "hello_world", it shows that the makeshift cluster are able to communicate which each other. after trying out different sequence in the machinefile, i found out that whenever a cross IPs mpirun server is started, the system pauses when the client tries to connect. Would it be related to the problem raised in " http://www.open-mpi.org/community/lists/devel/2009/07/6385.php";? i'm not too sure if i've fully described the situation, please let me know if you guys need any extra information. thank you in advance. yewyong.
