Application of graphics processing unit in general purpose computation

Based on the CUDA(compute unified device architecture) of GPU(graphics processing unit),the technical fundamentals and methods for general purpose computation on GPU are introduced.The algorithm of matrix multiplication is simulated on Geforce8800 GT.With the increasing of matrix order,algorithm speed is slowed either on CPU or on GPU.After the data quantity increases to 100 times,the operation time only increased in 3.95 times on GPU,and 216.66 times on CPU.