Abstract: A coordinator object that contains access patterns indicating the sequences of accesses of the cooperating processes to the object is allocated to the common object. The coordinator object controls the accesses to the object requested by the processes with the assistance of the access patterns. The change from one access type to another access type ensues dependent on a switch condition that can be set. The switch condition is met when all accesses of a group of processes with respect to an access type or when a predetermined plurality of specific accesses have been implemented. The goal of the method is to coordinate the parallel processing of processes in a multi-processor system both given common address space as well as given distributed address space.

Abstract: In the execution of an application program on different computers of a parallel-computer system, the problem is encountered that a process running on the one computer requires a data item which is generated by another computer in a parallel-running process. To avoid having to determine during the running of the program for each instruction containing an access to a data item whether this data item is determined in a parallel process, the commands which give access to a data item which either has already been calculated in the current process or is present at the time of access in an already calculated form in a parallel process are tagged during compiling of the application program. The execution of these commands is carried out in the same way as in the sequential case.