private IEnumerable <SparseTwinIndex <float> > GPUDoublyConstrained(IZone[] zones, IEnumerator <SparseArray <float> > ep, IEnumerator <SparseArray <float> > ea, IEnumerator <IDemographicCategory> ec)
{
using (MultiRunGPUGravityModel gm =
new MultiRunGPUGravityModel(zones.Length, (p => this.Progress = p), this.Epsilon, this.MaxIterations))
{
float[] friction = null;
while (ep.MoveNext() && ea.MoveNext() && ec.MoveNext())
{
var production = ep.Current;
var attraction = ea.Current;
var cat = ec.Current;
var ret = production.CreateSquareTwinArray <float>();
friction = this.ComputeFriction(zones, cat, production.GetFlatData(), attraction.GetFlatData(), friction);
yield return(gm.ProcessFlow(friction, production, attraction));
}
}
}
public IEnumerable <SparseTwinIndex <float> > Distribute(IEnumerable <SparseArray <float> > productions, IEnumerable <SparseArray <float> > attractions, IEnumerable <IDemographicCategory> cat)
{
var productionEnum = productions.GetEnumerator();
var attractionEnum = attractions.GetEnumerator();
var catEnum = cat.GetEnumerator();
var numberOfZones = this.Root.ZoneSystem.ZoneArray.GetFlatData().Length;
using (MultiRunGPUGravityModel multiDist = new MultiRunGPUGravityModel(numberOfZones, ((p) => this.Progress = p), this.Epsilon, this.MaxIterations))
{
var zoneArray = this.Root.ZoneSystem.ZoneArray;
float[] friction = null;
while (productionEnum.MoveNext() && attractionEnum.MoveNext() && catEnum.MoveNext())
{
yield return(multiDist.ProcessFlow((friction = this.ComputeFriction(zoneArray.GetFlatData(), catEnum.Current, friction)), productionEnum.Current, attractionEnum.Current));
}
friction = null;
}
}
