1. A block mapping method in a reconfigurable multi-processor system including a host processor that executes at least one function, a reconfigurable processor that reconfigures a portion of the function and executes the function, and a memory, the function mapping method comprising: mapping one of the at least one function to the reconfigurable processor; and when a task is created in the reconfigurable multi-processor system, dynamically mapping the mapped function and a function of the created task.