1. A cache write policy manager circuit configured to: determine whether at least two operational caches among a plurality of parallel operational caches are active; instruct an active operational cache among the plurality of parallel operational caches to apply a write-back cache policy in response to all of one or more other operational caches among the plurality of parallel operational caches not being active; and instruct the active operational cache among the plurality of parallel operational caches to apply a write-through cache policy in response to any of the one or more other operational caches among the plurality of parallel operational caches being active.