How to know which host does the VM allocated to?

[sharlec]

I am studying on how does VM allocation policy influence the performance. I hope to know how does datacenter make the decision that which host should allocate which VM? Which file contains he source code for it?

[itconsultore]

There are some samples in Cloudsim that you could check.
You could also check the source code,
Try samples related to PowerContainerHost.findHostForVm

I have tried before ClousimEx which extends a previous version of CloudSim.
You could check it and follow the same pattern to extend Cloudsim and add more specific functionality.

[amrous]

hello,

You must search in PowerVmAllocationPolicyMigrationAbstract class, there is a function, called finHostForVm, it implements the PABFD algorithm to find the most suitable host for a given vm, based on the min energy.
if you want to implement your own policy, you must change this function.
good luck