Embodiments of the present disclosure provide an apparatus, comprising: one or more instruction executing circuitries, wherein each instruction executing circuitry of the one or more instruction executing circuitries is configured to execute an instruction of a corresponding instruction type, and an instruction scheduling circuitry that is communicatively coupled to the one or more instruction executing circuitries, the instruction scheduling circuitry is configured to: determine according to an instruction type of the instruction and a number of instructions that have been allocated to the one or more instruction executing circuitries, an instruction executing circuitry from the one or more instruction executing circuitries to schedule the instruction for execution, and allocated the instruction to the determined instruction executing circuitry.