IOR output not consistent (probably caused from the used system?)

[gmarkomanolis]

After SC, I need to investigate why this inconsistency happens. This applies for competitions, not for the main/10 node list.

Example from two different systems

Output from IOR 1:
IOR-3.3.0+dev: MPI Coordinated Test of Parallel I/O
...
task offset : 1
nodes : 1
tasks : 40
clients per node : 40

Output from IOR 2:
IOR-3.3.0+dev: MPI Coordinated Test of Parallel I/O
...
task offset : 1
tasks : 56
clients per node : 56
repetitions : 1

We used in our script the variable nodes, we need to change to tasks/clients per node, but I am wondering why this happens.