04_descriptor_compile/
04_descriptor_compile.rs1use apple_metal::MetalDevice;
2use apple_mpsgraph::{
3 data_type, optimization, CompilationDescriptor, FeedDescription, Graph, ShapedType,
4 UnaryArithmeticOp,
5};
6
7fn main() {
8 let device = MetalDevice::system_default().expect("no Metal device available");
9 let graph = Graph::new().expect("graph");
10 let input = graph
11 .placeholder(Some(&[4]), data_type::FLOAT32, Some("input"))
12 .expect("placeholder");
13 let output = graph
14 .unary_arithmetic(UnaryArithmeticOp::Absolute, &input, Some("abs"))
15 .expect("absolute");
16
17 let descriptor = CompilationDescriptor::new().expect("compilation descriptor");
18 descriptor
19 .set_optimization_level(optimization::LEVEL1)
20 .expect("set optimization level");
21 descriptor
22 .set_wait_for_compilation_completion(true)
23 .expect("set wait");
24
25 let executable = graph
26 .compile_with_descriptor(
27 Some(&device),
28 &[FeedDescription::new(&input, &[4], data_type::FLOAT32)],
29 &[&output],
30 Some(&descriptor),
31 )
32 .expect("compile");
33 let input_type = ShapedType::new(Some(&[4]), data_type::FLOAT32).expect("shaped type");
34 let output_types = executable
35 .output_types(Some(&device), &[&input_type], Some(&descriptor))
36 .expect("output types");
37
38 println!("feed tensors: {}", executable.feed_tensors().len());
39 println!("target tensors: {}", executable.target_tensors().len());
40 println!("output type: {:?}", output_types[0].shape());
41}