yum-mirror/slang

Making it easier to work with shaders

git clone https://git.yummers.dev/yum-mirror/slang

Yong HeAdd MLP training examples. (#7550)f28f67d98

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1module network;
2
3import common;
4import mlp;
5
6public struct MyNetwork
7{
8    public FeedForwardLayer<4, 16> layer1;
9    public FeedForwardLayer<16, 4> layer2;
10
11    [Differentiable]
12    internal MLVec<4> encodeInput(NFloat x, NFloat y)
13    {
14        return MLVec<4>.fromArray({
15                x,
16                y,
17                x*x,
18                y*y,
19            });
20    }
21
22    [Differentiable]
23    internal MLVec<4> _eval(NFloat x, NFloat y)
24    {
25        let encoding = encodeInput(x, y);
26        let layer1Output = layer1.eval(encoding);
27        let leyer2Output = layer2.eval(layer1Output);
28        return leyer2Output;
29    }
30
31    [Differentiable]
32    public half4 eval(no_diff NFloat x, no_diff NFloat y)
33    {
34        let mlv = _eval(x, y);
35        let arr = mlv.toArray();
36        return half4(arr[0], arr[1], arr[2], arr[3]);
37    }
38}
39
40[Differentiable]
41public half loss(MyNetwork* network, no_diff half x, no_diff half y)
42{
43    let networkResult = network.eval(x, y);
44    let gt = no_diff groundtruth(x, y);
45    let diff = networkResult - gt;
46    return dot(diff, diff);
47}
48
49public half4 groundtruth(half x, half y)
50{
51    return {
52        (x + y) / (1 + y * y),
53        2 * x + y,
54        0.5 * x * x + 1.2 * y,
55        x + 0.5 * y * y,
56    };
57}
58