[Beowulf] PVM: urgent
fabio matturro
fabiomax3 at hotmail.com
Fri Nov 11 08:12:11 PST 2005
Hello,
I have some problems adding hosts with PVM.
I have installed PVM 3.4.2 (by Synaptic) on both hosts. Both of them run
Linux Ubuntu Hoary. I can correctly run pvm, compile and run programs on
both of them.
Each host is configured as follows:
.bashrc :
export PVM_RSH=/usr/bin/ssh
export PVM_ROOT=/usr/lib/pvm3
export PVM_DPATH=$PVM_ROOT/lib
export PVM_ARCH=LINUX
.bash_profile (same as .bashrc)
.shosts:
ubuntu matthew #Host:ubuntu, Account:matthew
ubuntuLAPTOP matthew #Host:ubuntuLAPTOP, Account:matthew
I've created keys for both hosts and copied them into authorized_keys under
$HOME/.ssh directory. When I try to connect to ubuntu (from ubuntuLAPTOP)
via ssh no password is requested and everything seems to be working
properly.
Furthermore, I've run this command " ln -sf /usr/bin/ssh
/etc/alternatives/pvm-rsh ",
as README.Debian suggested
Here comes the problems ; - )
I know that on PVM there's to be a master starting slaves. The first is to
be started manually, the latter via master (therefore PVM mustn't be running
on slaves).
I have tried starting master either by command 'pvm' or by 'pvmd'. PVM gets
running but when i execute (via pvm console) add name_host it can't. That's
the message I get:
HOST DTID
ubuntu Can't start pvmd
I open /tmp/pvm.1000/log file and it says as follows:
[t80040000] 11/11 17:03:07 ubuntuLAPTOP (127.0.0.1:1182) LINUX 3.4.2
[t80040000] 11/11 17:03:07 ready Fri Nov 11 17:03:07 2005
[t80000000] 11/11 17:03:12 stderr at ubuntu: phase1() execvp failed
[t80000000] 11/11 17:03:12 stdout at ubuntu: EOF
[t80000000] 11/11 17:03:12 stderr at ubuntu: phase1() execvp failed
[t80000000] 11/11 17:03:12 stdout at ubuntu: EOF
[t80040000] 11/11 17:03:12 startack() host ubuntu expected version, got
"PvmCantStart"
[t80040000] 11/11 17:04:25 locloutput() write: Broken pipe
[t80040000] 11/11 17:04:25 locloutput() marking t40001 dead
What renders me perplexed is that if I "sniff" eth0 (running tcpdump or
Ethereal) no packets are exchanged between the machines. As a confirm, in
fact, I get the same MESSAGE when I try to add the host off wire!!
I'm afraid I'm racking my brains over some really stupid mistake! Please,
help me out!
Matthew
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