Hi,
I have a strange problem using pvm. I have three Digital
AlphaStations (all with 512MB memory and running Digital UNIX 4.0B)
host3 : AlphaStation 500/500
host4 : AlphaStation 500/400
host5 : AlphaStation 500/500
The problem is that in some situations the slave jobs
get killed immediatly after they are started.
When I start the pvm deamon on host3 I can
spawn jobs on host3 and host4 but not on host5
(that is, the job starts but dies immediately)
When I start the pvm deamon on host4 I can
spawn jobs on host4 but not on host3 and host5
When I start the pvm deamon on host5 I can
spawn jobs on host4 and host5 but not on host3
This only happens when I use large executables.
In the console window I get the following error message :
/local/brabo/Pvmmiafock.x : /sbin/loader:Fatal error:
set_program_attributes failed to set heap start
This reminded me of a problem I had a while ago with
these machines. To be able to run large executables
(not using pvm) I had to put
set per-proc-data = 268435456
in the /etc/sysconfigtab file. I did this on all
three machines (using the sysconfigdb utility).
I also had to put the following lines in the .profile
files :
ulimit -d 1048576
ulimit -s 32768
I did this on all three machines, but I still
get the same error message.
Can somebody help me with this?
Here is some more information about
my configuration :
pvm is installed on host5 in /local/pvm/pvm3
the directery /local on host5 is NFS-mounted on
host3 and host4 as /local
the .kshrc files on all these machines contain the following lines
PVM_ROOT=/local/pvm/pvm3 ; export PVM_ROOT
PVM_ARCH=`$PVM_ROOT/lib/pvmgetarch` ; export PVM_ARCH
PVM_DPATH=/local/pvm/pvm3/lib/pvmd ; export PVM_DPATH
I start the pvm-daemon as follows
pvm pvm_hosts
the pvm_hosts file containts the following lines
* ep=/local/brabo
host1
host2
host3
where /local/brabo is the directory containing the
executables. The file pvm_hosts is identical on
all three machines.
I can rlogin from every machine to every other machine.
This is all relevant information I can think of. If you
need more information, please let me know...
Thanks in advance,
Bart.
ps I have also sent this message to the pvm newsgroup,
but maybe this is not a pvm-related problem but a
unix related problem...
--
Bart Rousseau, Ph.D. student
University of Antwerp - Dep. of Chemistry
Structural Chemistry - Quantum Chemistry
http://sch-www.uia.ac.be/struct/quantum/
Received on Wed Jul 02 1997 - 11:09:52 NZST