public void Add()
{
var a = VecFloat.Allocate(1024);
a.SetAll(2);
var b = VecFloat.Allocate(1024);
for (var i = 0; i < b.Count; ++i)
{
b[i] = i;
}
var r = VecFloat.Allocate(1024);
VecFloat.Add(a, b, r);
for (var i = 0; i < r.Count; ++i)
{
if (r[i] != 2 + i)
{
throw new Exception();
}
}
VecFloat.Release(ref a);
VecFloat.Release(ref b);
VecFloat.Release(ref r);
}
public void Max()
{
var a = VecFloat.Allocate(1024);
a.SetAll(2);
var b = VecFloat.Allocate(1024);
b.SetAll(5);
var r = VecFloat.Allocate(1024);
VecFloat.Max(a, b, r);
for (var i = 0; i < r.Count; ++i)
{
if (r.Get(i) != 5)
{
throw new Exception();
}
}
VecFloat.Release(ref a);
VecFloat.Release(ref b);
VecFloat.Release(ref r);
}
public void Divide()
{
var a = VecFloat.Allocate(1024);
a.SetAll(2);
var b = VecFloat.Allocate(1024);
for (var i = 0; i < b.Count; ++i)
{
b[i] = i;
}
var r = VecFloat.Allocate(1024);
VecFloat.Divide(a, b, r);
for (var i = 0; i < r.Count; ++i)
{
var av = 2.0f;
var bv = (float)(i);
var rv = av / bv;
var d = r[i] - rv;
if (Math.Abs(d) > 0.000001f)
{
throw new Exception("Index: " + i + " r:" + r[i] + " a:" + a[i] + " b:" + b[i] + " s:" + av + ":" + bv + ":" + rv + " d:" + d);
}
}
VecFloat.Release(ref a);
VecFloat.Release(ref b);
VecFloat.Release(ref r);
}
static void PreLoad(int allocSize)
{
var a = VecFloat.Allocate(allocSize);
a.SetAll(2);
var b = VecFloat.Allocate(allocSize);
b.SetAll(5);
var r = VecFloat.Allocate(allocSize);
VecFloat.Add(a, b, r);
VecFloat.Release(ref a);
VecFloat.Release(ref b);
VecFloat.Release(ref r);
}
private static float Simd(int allocSize)
{
var a = VecFloat.Allocate(allocSize);
a.SetAll(2);
var b = VecFloat.Allocate(allocSize);
b.SetAll(5);
var r = VecFloat.Allocate(allocSize);
VecFloat.Add(a, b, r);
var result = VecFloat.Sum(r);
VecFloat.Release(ref a);
VecFloat.Release(ref b);
VecFloat.Release(ref r);
return(result);
}
public void SetAndRead()
{
var vector = VecFloat.Allocate(1024);
for (var i = 0; i < vector.Count; ++i)
{
float f = i;
vector.Set(i, f);
}
for (var i = 0; i < vector.Count; ++i)
{
float f = i;
var b = vector.Get(i);
if (f != b)
{
throw new Exception();
}
}
VecFloat.Release(ref vector);
}
public void AllocateAndDeallocate()
{
var vector = VecFloat.Allocate(1024);
VecFloat.Release(ref vector);
}
static void Main(string[] args)
{
Stopwatch watch = new Stopwatch();
int allocSize = 10000000;
Random rnd = new Random();
float[] setA = new float[allocSize];
float[] setB = new float[allocSize];
var a = VecFloat.Allocate(allocSize);
var b = VecFloat.Allocate(allocSize);
for (int i = 0; i < allocSize; i++)
{
setA[i] = rnd.Next(0, 10);
setB[i] = rnd.Next(0, 10);
}
a.SetRange(0, setA, 0, allocSize);
b.SetRange(0, setB, 0, allocSize);
//a.SetAll(2);
// b.SetAll(5);
var r = VecFloat.Allocate(allocSize);
watch.Start();
VecFloat.Add(a, b, r);
watch.Stop();
VecFloat.Release(ref a);
VecFloat.Release(ref b);
VecFloat.Release(ref r);
Console.WriteLine("SimdSharp: " + watch.ElapsedMilliseconds);
//watch.Restart();
float[] qa = new float[allocSize];
float[] qb = new float[allocSize];
float[] qr = new float[allocSize];
for (int i = 0; i < allocSize; i++)
{
qa[i] = rnd.Next(0, 10);
qb[i] = rnd.Next(0, 10);
}
watch.Reset();
watch.Start();
for (int i = 0; i < allocSize; i++)
{
qr[i] = qa[i] + qb[i];
}
watch.Stop();
Console.WriteLine("Loop: " + watch.ElapsedMilliseconds);
//not a fair test, its only using half its contents, wasting 50% cache and its not sped up in .net framework with intrinsics anyways
Vector2[] va = new Vector2[allocSize];
Vector2[] vb = new Vector2[allocSize];
Vector2[] vr = new Vector2[allocSize];
for (int i = 0; i < allocSize; i++)
{
va[i] = new Vector2(rnd.Next(0, 10), rnd.Next(0, 10));
vb[i] = new Vector2(rnd.Next(0, 10), rnd.Next(0, 10));
}
watch.Reset();
watch.Start();
for (int i = 0; i < allocSize; i++)
{
vr[i].X = va[i].X + vb[i].X;
}
watch.Stop();
Console.WriteLine("Numerics: " + watch.ElapsedMilliseconds);
Console.ReadLine();
}