GPIUTMD stands for Graphic Processors at Isfahan University of Technology for Many-particle Dynamics. It performs general purpose particle dynamics simulations on a single workstation, taking the advantage of NVIDIA CUDA GPUs to attain a level of performance equivalent to hundreds of processors on a fast cluster. GPIUTMD uses graphics processors. otherwise known as the GPU. The GPU is the other processor in your PC responsible for amazing graphics you find in some of the best 3D applications on the planet. But today you need the GPU for much more than just game and graphics. With CUDA Computing architecturethe GPU can now dramatically enhance the performance of the scientific computations, with faster processing and by delivering an amazing amount of calculation in just a blink of an eye.