A computing system receives a program. The program is in a first computer language and specifies computer operations on stored data. The computing system is configured to partition the stored data into sets of partitioned data for performing parallel execution on each of the sets of partitioned data. The computing system determines whether the program comprises a thread program component. The computing system, responsive to determining that the program comprises a thread program component, generates computer-generated computer instructions. The computer-generated computer instructions are in a second computer language. The computer-generated computer instructions are dependent on whether the thread program component specifies information for partitioning and grouping the stored data; whether the program comprises a data program component; or whether the data program component specifies information for partitioning and grouping the output data of the thread program component. The computing system executes the program according to the computer-generated computer instructions.