DEBUGGING METHOD AND DEBUGGING SYSTEM FOR MULTITASK PROGRAM

PURPOSE: To detect an error at the time of rewriting a serial program to a multitask program by collating the values and the sizes of data arrangement in a part where the serial program and the multitask program are respectively executed and processed in parallel. CONSTITUTION: For rewriting data arrangement which is distributedly arranged in such a way that it is processed in parallel by respective processors, a program conversion means 13 generates a multitask conversion program 15 for the multitask program 12 and generates a serial conversion program 14 to the serial program 11. A collation data saving means 16 saves the value and the size of data in a collation data file 17 whenever the serial conversion program 14 passes through the fitted part of data at the time of executing the program. A data collation means 18 collates the size and the value of data at every collation part at the time of executing the multitask conversion program 15, and judges whether the programs 11 and 12 are equivalent or not. When they are not equivalent, the effect is outputted to an output device.