public TransformInfo(IHost host, ColumnInfo column, int d, float avgDist)
{
Contracts.AssertValue(host);
SrcDim = d;
NewDim = column.NewDim;
host.CheckUserArg(NewDim > 0, nameof(column.NewDim));
_useSin = column.UseSin;
var seed = column.Seed;
_rand = seed.HasValue ? RandomUtils.Create(seed) : RandomUtils.Create(host.Rand);
_state = _rand.GetState();
var generator = column.Generator;
_matrixGenerator = generator.CreateComponent(host, avgDist);
int roundedUpD = RoundUp(NewDim, _cfltAlign);
int roundedUpNumFeatures = RoundUp(SrcDim, _cfltAlign);
RndFourierVectors = new AlignedArray(roundedUpD * roundedUpNumFeatures, CpuMathUtils.GetVectorAlignment());
RotationTerms = _useSin ? null : new AlignedArray(roundedUpD, CpuMathUtils.GetVectorAlignment());
InitializeFourierCoefficients(roundedUpNumFeatures, roundedUpD);
}
public TransformInfo(IHost host, Column item, Arguments args, int d, Float avgDist)
{
Contracts.AssertValue(host);
SrcDim = d;
NewDim = item.NewDim ?? args.NewDim;
host.CheckUserArg(NewDim > 0, nameof(item.NewDim));
_useSin = item.UseSin ?? args.UseSin;
var seed = item.Seed ?? args.Seed;
_rand = seed.HasValue ? RandomUtils.Create(seed) : RandomUtils.Create(host.Rand);
_state = _rand.GetState();
var generator = item.MatrixGenerator;
if (generator == null)
{
generator = args.MatrixGenerator;
}
_matrixGenerator = generator.CreateComponent(host, avgDist);
int roundedUpD = RoundUp(NewDim, CfltAlign);
int roundedUpNumFeatures = RoundUp(SrcDim, CfltAlign);
RndFourierVectors = new AlignedArray(roundedUpD * roundedUpNumFeatures, CpuMathUtils.Vector128Alignment);
RotationTerms = _useSin ? null : new AlignedArray(roundedUpD, CpuMathUtils.Vector128Alignment);
InitializeFourierCoefficients(roundedUpNumFeatures, roundedUpD);
}