# PhasicFlow: src/Integration/boundaries -> phasicFlow Relation
PhasicFlow is an open-source parallel DEM (discrete element method) package for simulating granular flow. It is developed in C++ and can be exectued on both GPU (like CUDA) and CPU.

### boundaries → phasicFlow Relation

File in src/Integration/boundaries | Includes file in src/phasicFlow
--- | ---
boundaryIntegration.cpp | structuredData / pointStructure / pointStructure / pointStructure.hpp
boundaryIntegration.hpp | containers / pointField / boundaryField / generalBoundary / generalBoundary.hpp
boundaryIntegration.hpp | containers / pointField / pointField / pointFields.hpp
boundaryIntegration.hpp | typeSelection / virtualConstructor.hpp
boundaryIntegrationList.hpp | structuredData / boundaries / boundaryList.hpp
boundaryIntegrationList.hpp | containers / List / ListPtr / ListPtr.hpp