Apparatus and method for analyzing graphics processor performance based on graphics processor analytical model

A graphics processor performance analysis apparatus based on a graphics processor analytical model comprising:

• a model definition unit configured to define a graphics processor core model for identifying structural stalls of computing and a memory, a data stall of the memory, and an idle stall;
• a simulation execution unit configured to simulate an operation of a specific graphics processing unit (GPU) by using architecture parameters of a GPU application and the specific GPU as inputs on a basis of the graphics processor core model;
• and
• a performance analysis unit configured to receive an output of the graphics processor core model as a result of the simulation and analyze performance of the specific GPU,
• wherein the simulation execution unit is further configured to divide and define a total cycle of a sub-core as a second active cycle and a second idle cycle through a sub-core model of the graphics processor core model, calculate the second idle cycle through a difference between the second active cycles of a specific sub-core and a longest executing sub-core in a same streaming multiprocessor (SM), and divide and define the second active cycle as first to third partial active cycles,
• wherein the simulation execution unit is further configured to apply a condition that all instructions require a single cycle and no hazard occurs, to calculate the first partial active cycle on a basis of a number of cycles required for the sub-core, and
• wherein the model definition unit, the simulation execution unit, and the performance analysis unit are each implemented via at least one processor.