ViennaMag is an open-source marco/micromagnetic simulator for modeling of nano-sizes magnetic devices. ViennaMag allows modeling of device operation under spin-current influence as well as under magnetic field. Thereby, this simulator is aimed to calculate magnetodynamics of devices including but not limited to magnetic memory (STT-MRAM, MRAM), spin-torque nano-oscillators, spin logic devices and etc. Such contributions to the effective magnetic field as the external field, magnetic...