ResourceCoresMinimum

Minimum reserved number of CPU cores.

May be a fractional value to indicate to a scheduling algorithm that one core can be allocated to multiple jobs. For example, a value of 0.25 indicates that up to 4 jobs may run in parallel on 1 core. A value of 1.25 means that up to 3 jobs can run on a 4 core system (4/1.25 ~ 3).

Processes can only share a core allocation if the sum of each of their 'ramMax', 'tmpdirMax', and 'outdirMax' requests also do not exceed the capacity of the node.

Processes sharing a core must have the same level of isolation (typically a container or VM) that they would normally have.

The reported number of CPU cores reserved for the process, which is available to expressions on the 'CommandLineTool' as 'runtime.cores', must be a non-zero integer, and may be calculated by rounding up the cores request to the next whole number.

Scheduling systems may allocate fractional CPU resources by setting quotas or scheduling weights. Scheduling systems that do not support fractional CPUs may round up the request to the next whole number.