Uses
SMP has many uses in science, industry, and business which often use custom-programmed software for multithreaded (multitasked) processing. However, most consumer products such as word processors and computer games are written in such a manner that they cannot gain large benefits from concurrent systems. For games this is usually because writing a program to increase performance on SMP systems can produce a performance loss on uniprocessor systems. Recently, however, multi-core chips are becoming more common in new computers, and the balance between installed uni- and multi-core computers may change in the coming years.
Read more about this topic: Symmetric Multiprocessing