[Haizea] Multi-instance restype vs. higher capacity

[Borja Sotomayor]

Hi,

> From scheduling point of view defining the following definitions are the same?
>
> 1) Defining a cpu resource as 8 instance (within multi-instance
> restype) with capacity 100
> 2) Defining a cpu resource as single instance with capacity 800

If you assume that leases always request entire CPUs, yes.

Otherwise, no. Let's suppose it's 2-instance and 200. If you get three
lease requests, one needing 50% of the CPU and the other two needing
75% of the CPU, in scenario (1) above, Haizea would be unable to
schedule them into the two CPUs, but *would* be able to schedule them
in scenario (2).

Cheers!
-- 
Borja Sotomayor
-Scientific Writer at UChicago's Computation Institute
http://people.cs.uchicago.edu/~borja/
-Community Manager for the OpenNebula project
http://www.opennebula.org/