Multi-processor system for inheriting contents of register from parent thread to child thread

摘要

Each of a plurality of processors in a multi-processor system executes a thread. The processor includes an execution unit, a reorder buffer which temporally keeps the execution results by the execution unit, a register which stores the execution results kept in the reorder buffer in-order, and an instruction queue which issues an instruction to be executed by the execution queue to the execution queue, the instruction having gotten data necessary for the execution unit. After a thread generation instruction is issued from a parent thread in the processors, only data generated by an instruction prior to the thread generation instruction is inherited from the parent thread to a child thread.