[BProc] java libraries, LAM executables

[Gregory S. <gr...@ai...>]

Hi,

I am hoping someone has faced similar problems and know a solution. A bit
of info: we run a 2.4.20-bproc Debian kernel, with Clubmask, on a 32 node
cluster.

1) Despite the fact that /etc/beowulf/config says, among others,

libraries /usr/lib/j2se/1.4/jre/lib/i386/libja*

When I try to run Java, I get:

[378] bourbaki:/root>bpsh 0 java --version
Error: could not find libjava.so
Error: could not find Java 2 Runtime Environment.

We have fixed similar problems with other libraris by adding them to
'config' and rebooting. But not this one. Anything special about it?


2) When I try to run LAM/mpirun, it only manages to run executables which
are available on the nodes. So, since in our configuration my home
directory is not mounted on the nodes (they are of course mounted on the
head node). , I have to move the executable somewhere to make it
accessible to mpirun.

I am experimenting with Nic's cpi.sh, from Clubmask User Guide;  I think I
tried all combination of working directories and paths in mpirun, but
unless the program is visible to the nodes, I get:

mpirun: cannot start ./cpi on n1: No such file or directory

I do not have the same problem with a non-MPI executables, which can be
happily started through bpsh from the head node, even though the nodes
don't see them.

Is there a solution to this, without mounting the home directories on the
nodes?

Thanks,

--
Greg     Shakhnarovich
AI Lab, MIT  NE43-V611
Cambridge,  MA   02139
tel     (617) 253-8170
fax     (617) 258-6287