Concurrent Systems: Hybrid Object Implementations and Abortable Objects

c M. Raynal, Concurrent objects: entering a modern era 2 The world is changing • Concurrency in multiprocessors is true concurrency • It follows that the concurrency concepts and techniques used to cope with multiplexing or interrupt handling are no longer appropriate, and must be revisited to address the current computing world • " Changes in technology can have far-reaching effects on theory.[...] After decades of being respected but not taken seriously, research on multiprocessor algorithms and data structures is going mainstream " The world is changing (cont'd) • Before the introduction of multicore processors, paral-lelism was largely dedicated to computational problems with regular, slow-changing (or even static) communication and coordination patterns. Such problems arise in scientific computing or in graphics, but rarely in systems. The future promises us multiple cores on anything from phones to laptops, desktops, and servers, and therefore a plethora of applications characterized by complex, fast-changing ineractions and data exchanges. "