MATLAB package for discrete dipole approximation by graphics processing unit: Fast Fourier Transform and Biconjugate Gradient

•Introducing a MATLAB package for describing discrete dipole approximation technique.•Including accelerative methods to reduce the computational time and memory.•Providing a comprehensive explanation for all steps of the used accelerative methods.•Accelerating computation procedure using graphics processing unit in MATLAB.•For 1 million dipoles, graphics processing unit performance is ~10 times faster than CPU.•Computing optical properties of the plasmonic nanoparticles using this package.