why there are 4 cores per cluster in ARMV8 architecture

Peter,

but there are for example the LS1088A, which comes with 8(!) A72 cores. But in two clusters of 4. But we'll never know why, NXP/Freescale did it.

I never saw more then 4 cores in a cluster, so there must be some limiting factor.

Peter,

but there are for example the LS1088A, which comes with 8(!) A72 cores. But in two clusters of 4. But we'll never know why, NXP/Freescale did it.

I never saw more then 4 cores in a cluster, so there must be some limiting factor.