yum-mirror/slang

Making it easier to work with shaders

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

Harsh Aggarwal (NVIDIA)Fix 7723 - Add autodiff tests (#7919)d10732742

master
branchesmasterall refs →
959 B38 linesraw
1//TEST(compute, vulkan):COMPARE_COMPUTE_EX:-vk -compute -shaderobj -output-using-type
2//TEST(compute):COMPARE_COMPUTE_EX:-slang -compute -shaderobj -output-using-type
3//TEST(compute):COMPARE_COMPUTE_EX:-cuda -compute -shaderobj -output-using-type
4
5//TEST_INPUT:ubuffer(data=[0 0 0 0 0], stride=4):out,name=outputBuffer
6RWStructuredBuffer<float> outputBuffer;
7
8typedef DifferentialPair<float> dpfloat;
9 
10float f(float x)
11{
12    return x*x;
13}
14
15[ForwardDerivativeOf(f)]
16DifferentialPair<float> df(DifferentialPair<float> x)
17{
18    var primal = x.p * x.p;
19    var diff = 2 * x.p * x.d;
20    return DifferentialPair<float>(primal, diff);
21}
22
23[ForwardDifferentiable]
24float g(float x)
25{
26    return f(x);
27}
28
29[numthreads(1, 1, 1)]
30void computeMain(uint3 dispatchThreadID: SV_DispatchThreadID)
31{
32    {
33        dpfloat dpa = dpfloat(3.0, 1.0);
34
35        outputBuffer[0] = f(dpa.p);        // Expect: 9.0
36        outputBuffer[1] = __fwd_diff(g)(dpa).d; // Expect: 6.0
37    }
38}