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 →
1.4 KiB56 linesraw
1//TEST(compute):COMPARE_COMPUTE_EX:-slang -compute -shaderobj -output-using-type
2//TEST(compute, vulkan):COMPARE_COMPUTE_EX:-vk -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;
9typedef float.Differential dfloat;
10
11[ForwardDifferentiable]
12float f(float x)
13{
14    return x;
15}
16
17dpfloat g_jvp_(dpfloat dpx)
18{
19    return dpfloat(dpx.p, 2 * dpx.d);
20}
21
22[ForwardDerivative(g_jvp_)]
23float g(float x)
24{
25    return x + x;
26}
27
28[ForwardDifferentiable]
29float h(float x, float y)
30{
31    float m = x + y;
32    float n = x - y;
33    return m * n + 2 * x * y;
34}
35
36[ForwardDifferentiable]
37float j(float x, float y)
38{
39    float m = x / y;
40    return m * y;
41}
42
43[numthreads(1, 1, 1)]
44void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
45{
46    {
47        dpfloat dpa = dpfloat(2.0, 1.0);
48        dpfloat dpb = dpfloat(1.5, 1.0);
49
50        outputBuffer[0] = __fwd_diff(f)(dpa).d;                   // Expect: 1
51        outputBuffer[1] = __fwd_diff(f)(dpfloat(dpa.p, 0.0)).d; // Expect: 0
52        outputBuffer[2] = __fwd_diff(g)(dpa).d;                   // Expect: 2
53        outputBuffer[3] = __fwd_diff(h)(dpa, dpb).d;              // Expect: 8
54        outputBuffer[4] = __fwd_diff(j)(dpa, dpb).d;               // Expect: 1
55    }
56}