<p><aclass="reference external"href="http://en.wikipedia.org/wiki/Transactional_memory">Transactional Memory</a>™ is a technique imported from
<p><aclass="reference external"href="http://en.wikipedia.org/wiki/Transactional_memory">Transactional Memory</a>(<em>TM</em>) is a technique imported from
databases: every time we want to do a change to the processors' main
memory, we do it in a “transaction”. Multiple transactions can be
executed in parallel by multiple cores. When a transaction is complete,