Today (Saturday) We will make some minor tuning adjustments to MySQL.

You may experience 2 up to 10 seconds "glitch time" when we restart MySQL. We expect to make these adjustments around 1AM Eastern Daylight Saving Time (EDT) US.

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SuSE 11.3 - man page for ipcluster (suse section 1)

IPCLUSTER(1)															      IPCLUSTER(1)

ipcluster - IPython parallel computing cluster control tool
ipcluster {piexec,local,mpirun,pbs,ssh} [options]
ipcluster is a control tool for IPython's parallel computing functions. IPython cluster startup. This starts a controller and engines using various approaches. Use the IPYTHONDIR environment variable to change your IPython directory from the default of .ipython or _ipython. The log and security subdirectories of your IPython directory will be used by this script for log files and security files.
The first positional argument should be one of: {mpiexec, local, mpirun, pbs, ssh}, which are the available cluster types. For detailed help on each, type "ipcluster TYPE --help". Briefly: local run a local cluster mpirun run a cluster using mpirun (mpiexec also works) mpiexec run a cluster using mpiexec (mpirun also works) pbs run a pbs cluster ssh run a cluster using ssh, should have ssh-keys setup
-h, --help show help message and exit
ipcluster local -n 4 This command will start 4 IPython engines on the local computer.
ipcluster is a tool that ships with IPython, created by the IPython Development Team. This manual page was written by Stephan Peijnik <>, for the Debian project (but may be used by others). Modified by Fer- nando Perez <> for inclusion in IPython. October 28, 2008 IPCLUSTER(1)

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