Provided is a data processing method which can increase data processing speed without adding a new node to a distributed system. The data processing method may include: calculating a conversion number of cores corresponding to a number of processing blocks included in a graphics processing unit (GPU) of a node of a distributed system; calculating a adding up number of cores by adding up a number of cores included in a central processing unit (CPU) of the node of the distributed system and the conversion number of cores; splitting job data allocated to the node of the distributed system into a number of job units data equal to the adding up number of cores; and allocating a number of job units data equal to the number of cores included in the CPU to the CPU of the node of the distributed system and a number of job units data equal to the conversion number of cores to the GPU of the node of the distributed system.