[Swift-devel] virtual clusters an swift

[Ben Clifford]

> One, which Mike mentioned, is a glide-in like thing (called coasters),
> but the main purpose of that is improved performance (e.g. faster job
> submission rates, avoiding shared FSs as much as possible). On the other
> hand, if there are non-trivial costs associated with allocating nodes,
> that might be worth considering.

This sounds like you see two ways of doing things: 
one-vm-per-swift-app-call and one-cluster-of-vms-running-coasters

Whenever I thought about this before, something like coasters (or 
appropriately configured PBS when I first thought about it), seemed the 
sensible of the two.

I think node alloc time (assuming it behaves like EC2 stuff i've done 
elsewhere) is on the order of booting a machine from scratch.

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