Definition of resources

[davidwaroquiers]

How to have a definition of (requested or assigned) resources that are easy to understand, but still keeps a sufficiently sophisticated level of granularity as well as the possibility of heterogeneous resources (both in type, e.g. CPUs+GPUs and numbers, e.g. one node with 4 cores and X Mb of memory and 3 nodes with 8 cores and Y Mb of memory).

At the (simplest) level of cpus/processors/cores, a naming convention should be adopted (there does not seem to be any standard that stands out on this). One example could be:
Smallest computing "entity": CORE
A PROCESSOR is made of several COREs
A NODE is made of several PROCESSORs
A Supercomputer has many NODEs (possibly different in types/sizes/...)