Re: cluster list

[Greg Lindahl <lindahl@conservativecomputer.com>]

> What type of clusters do people care to discuss, if any?

The clusters I build for HPC are totally at user-level, and don't
really require any kernel changes except good fast networking and
maybe page coloring. Clusers are a quite diverse topic.

> That last poster had a good point, what about clusters that have different
> CPU speeds?  Handled by the job submission process, if you need X CPU @
> 300 Mhz, then queue/wait for them to free up.   The scheduler will have to
> be smart enough to keep other processors from using the CPU's to keep them
> free ready for this job.

A scheduler for parallel jobs is usually at user level, and common
queue systems such as PBS have the capability to deal with multiple
speeds. But if you're doing something like MOSIX and job migration I
don't know where the scheduler sits.

Maybe it would be good to start with a list of cluster systems which
either patch the kernel or are highly dependent on it. One example not
mentioned yet is Condor.

-- g

Linux-cluster: generic cluster infrastructure for Linux
Archive:       http://mail.nl.linux.org/linux-cluster/