void ISimulator.Integrate(deviceptr <float4> newPos, deviceptr <float4> oldPos, deviceptr <float4> vel,
                           int numBodies, float deltaTime, float softeningSquared, float damping)
 {
     _simMod.IntegrateNbodySystem(newPos, oldPos, vel, numBodies, deltaTime, softeningSquared,
                                  damping, _blockSize);
 }