1. A method of executing parallel application on a manycore cluster system comprising a plurality of nodes, each of which comprises at least one compute device, the method comprising the steps of: a) executing a parallel application by at least one node; b) predicting a data throughput of the at least one compute device comprised in each node by the at least one node; and c) distributing a workload accompanied by the execution of the parallel application to the at least one compute device comprised in each node according to the predicted data throughput of the compute device, wherein the step b) comprises the sub-steps of: b1) extracting a feature value of a kernel for the manycore cluster system; b2) predicting an execution time of the kernel using an execution-time prediction algorithm; b3) predicting an overall execution time which the manycore cluster system requires to execute the parallel application, on the basis of the feature value of the kernel and the execution time of the kernel; and b4) predicting the data throughput of each compute device on the basis of the predicted overall execution time, wherein the sub-step b1 ) comprises the sub-steps of: b11) sampling a first portion of the workload from a central processing unit (CPU) of the at least one node to extract a hardware performance value of a graphics processing unit (GPU) included in the at least one node on the basis of the sampled first portion of the workload; b12) sampling a second portion of the workload from the CPU from which the first portion of the workload is sampled, and extracting a hardware performance value of the CPU from which the second portion of the workload is sampled; and b13) extracting a feature vector of the kernel of the compute device within the at least one node on the basis of at least one of the hardware performance values of the CPU and the GPU.