Proportion bug in cluster with multi extend resource

[lminzhw]

Is this a BUG REPORT or FEATURE REQUEST?:

/kind bug

What happened:

Firstly, we have a case

Cluster have 2 extend resource Ra, Rb, 2 queues Qa, Qb with different weight.
For example, we have 10Ra, 10Rb allocatable, Qa weight 1, Qb weight 100.
Now, Qa request 100 Ra, Qb request 100 Rb.

In this case, we wanna to assign 10Ra to Qa and 10 Rb to Qb.

---

But, the result is not as we expected.

volcano/pkg/scheduler/plugins/proportion/proportion.go

Line 136 in a2c4436

if attr.request.Less(attr.deserved) {

At here, Less means request should be less than deserved in every resource.

In this case, the Less func will not treat Qb as meet state, it means almost all Ra will be assigned to it. So, the pod in Qa would hardly be scheduled.

What you expected to happen:

I think do propotion in every resource may fix this.

for resource, quantity in cluster.allocatable {
    assign allocatable resource to every queue by weight
}

[lminzhw]

/cc @k82cn @sivanzcw

[k82cn]

Should be fixed by #599 .