# PhasicFlow: Class Members - Variables
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.

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- Geff_ : nonLinear< limited >::nonLinearProperties , nonLinearMod< limited >::nonLinearProperties
- geom_ : geometricRegion< GeomType >
- geometry_ : contactSearch , interaction , Time
- geometryMotion_ : boundaryGrainInteraction< contactForceModel, geometryMotionModel > , boundarySphereInteraction< contactForceModel, geometryMotionModel > , grainInteraction< contactForceModel, geometryMotionModel, contactListType > , sphereInteraction< contactForceModel, geometryMotionModel, contactListType >
- globalBox_ : simulationDomain
- globalDomain_ : subDomain
- globalRank_ : IOPattern , processors
- globalSize_ : IOPattern , processors
- grainDiameter_ : grainParticles
- grainDiameters_ : grainShape
- grains_ : grainParticles
- grnParticles_ : boundaryGrainInteraction< contactForceModel, geometryMotionModel > , grainInteraction< contactForceModel, geometryMotionModel, contactListType >
- growthFactor_ : VectorDual< T, MemorySpace >