As per my knowledge for calculating a theoretical HPL value (Rpeak)
Number of nodes * Cores per node * Speed per Core * Operation per cycle == Theoretical HPL (Rpeak)
Is this method is same for the Haswell Process.
If not please share the detail steps for calculation the Theoretical HPL (Rpeak).
And achieving the HPL result
4 Compute node of 256 GB memmory each node.