Hi all,
Here's an update on the computers that we have for PyPy at the HHU.
Snake is back, but nothing wrong was found with its hardware, which
means that it'll probably continue to hang randomly from time to time...
Maybe we'll reinstall the machine from scratch. For all I know it could
be corrupted system files.
However, there are now two other machines. Just like snake they are
machines whose performances can be a bit strange - hyperthreaded Xeon
cores. Each core has roughly snake-like performance, but each machine
has got 4 cores. The software setup is: SuSE Linux base, which I'm
hiding as much as possible behind a Gentoo Linux installation in the
/gentoo directory. When you log in, you reach a chrooted environment,
so you should not see that at all unless you dig in special files.
I've copied some accounts from codespeak, so you must use the same public
key to log in (no password logins). Just ask me if you want to use the
machines but I forgot to copy your account over.
To login, you must use port 922 instead of 22. The latter would reach
the SSH daemon of the outer SuSE installation (where you don't have an
account). I recommend adding the following lines to your file
~/.ssh/config:
Host wyvern
HostName wyvern.cs.uni-duesseldorf.de
Port 922
Host cobra
HostName cobra.cs.uni-duesseldorf.de
Port 922
Then you can log in with 'ssh wyvern' or 'ssh cobra'. Note that
'wyvern' is the fastest machine so feel free to prefer it.
A great way to use them is for distributed testing. Put in your file
~/conftest.py:
disthosts = ['wyvern'] * 4 + ['cobra'] * 4
Then you can do 'py.test --session=R'. Try also the --runbrowser
option.
A bientot,
Armin
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