Private Variables

#pragma MP taskloop private (list_of_private_variables) specifies all the variables that should be treated as private variables for this loop. All other variables used in the loop that are not explicitly specified as shared, readonly, or reduction variables, will be either shared or private as defined by the default scoping rules.

A private variable is one whose value is private to each processor processing some iterations of a loop. In other words, the value assigned to a private variable by one of the processors working on iterations of a loop is not propagated to other processors processing other iterations of that loop. A private variable has no initial value at the start of each iteration of a loop and must be set to a value within the iteration of a loop prior to its first use within that iteration. Execution of a program with a loop containing an explicitly declared private variable whose value is used prior to being set will result in undefined behavior.