Systems, methods and computer program products for operation history management for hpc programs optimization

In a high performance computing system, a computer executed method for adjusting difference in an application area when operation history reapplication is executed by the system after operation history content changes are made, the computer executed method consisting of:

• in response to saving an operation history:
• creating a pseudo-change file that includes program changes represented by marks above and below an area in a file in which the program changes are made, the marks above and below the area specifying an operation object;
• creating a change history representing the program changes by storing differences between contents of the file before an operation included in the program changes and the pseudo-change file,
• wherein the operation is selected from the group consisting of already applied, not applied, and application failure;
• including the differences in an operation history list;
• in response to applying the operation history:
• applying the differences to an objective operation file that acquires the pseudo-change file, by comparing three lines above and below a line in the file within the area in which the operation has been performed;
• determining the area based on a position of the marks above and below the area from the pseudo-change file;
• and
• acquiring edited results by applying the differences from the operation history to the objective application file.