Some problems in distributing real-time ada programs across machines,” Ada in use

Michigan is currently developing a real-time distributed computing capability based upon the premises that real-time distributed languageJ provide the best approach to real-time distributed computing and, given the focus on the language level, that Ada offers an excel-lent candidate language. The first phase of the group's work was on analysis of real-time distributed computing. The second, and current, phase is the development of a pre-translator which translates an Ada program into n Ada programs, each being targeted for one of a group of processors and each having required communication support software automatically created and attached by the pre-translator. This paper describes the pre-translator being developed and a number of issues which have arisen with regard to the distributed execution of a single Ada program, including language semantics, objects of distribution and their mutual access, network timing, and execution environments. I. In t roduct ion "Ada " is the result of a collective ffort to design a common language for program-ming large scale and real-time systems. " So states the foreword to the Ada Language Reference Manual [DoD83]. This statement has often been elaborated to mean that Ad