Disabling registration cache in MPICH3.2

Question

When using MVAPICH2 I export this variable:

MV2_USE_LAZY_MEM_UNREGISTER=0

In the user guide this variable is defined as:

"Setting this parameter enables mvapich2 to use memory registration cache."

If I needed to use this feature in MPICH, which could be its equivalent?

Answer 1

There is no registration cache in MPICH, this is a feature which is specific to MVAPICH