daedalus-engine 0.1.1

High-level engine facade for planning and running Daedalus graphs.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144

#[cfg(feature = "gpu-mock")]
use std::sync::Arc;

#[cfg(feature = "gpu-mock")]
use daedalus_engine::GpuBackend;
use daedalus_engine::{Engine, EngineConfig};
use daedalus_planner::{ComputeAffinity, Edge, Graph, NodeInstance, NodeRef, PortRef};
use daedalus_registry::store::{NodeDescriptor, Port, Registry};
#[cfg(feature = "gpu-mock")]
use daedalus_runtime::RuntimeNode;
#[cfg(feature = "gpu-mock")]
use daedalus_runtime::executor::EdgePayload;
#[cfg(feature = "gpu-mock")]
use daedalus_runtime::io::NodeIo;
#[cfg(feature = "gpu-mock")]
use daedalus_runtime::state::ExecutionContext;

fn make_registry() -> Registry {
    let mut reg = Registry::new();
    let ty = daedalus_data::model::TypeExpr::Scalar(daedalus_data::model::ValueType::Int);
    let producer = NodeDescriptor {
        id: daedalus_registry::ids::NodeId::new("producer"),
        feature_flags: vec![],
        label: None,
        inputs: vec![],
        fanin_inputs: vec![],
        outputs: vec![Port {
            name: "out".into(),
            ty: ty.clone(),
            source: None,
            const_value: None,
        }],
        default_compute: ComputeAffinity::CpuOnly,
        sync_groups: Vec::new(),
        metadata: Default::default(),
    };
    let consumer = NodeDescriptor {
        id: daedalus_registry::ids::NodeId::new("consumer"),
        feature_flags: vec![],
        label: None,
        inputs: vec![Port {
            name: "in".into(),
            ty,
            source: None,
            const_value: None,
        }],
        fanin_inputs: vec![],
        outputs: vec![],
        default_compute: ComputeAffinity::CpuOnly,
        sync_groups: Vec::new(),
        metadata: Default::default(),
    };
    reg.register_node(producer).unwrap();
    reg.register_node(consumer).unwrap();
    reg
}

fn make_graph(compute: ComputeAffinity) -> Graph {
    let nodes = vec![
        NodeInstance {
            id: daedalus_registry::ids::NodeId::new("producer"),
            bundle: None,
            label: None,
            inputs: vec![],
            outputs: vec!["out".into()],
            compute,
            const_inputs: vec![],
            sync_groups: vec![],
            metadata: Default::default(),
        },
        NodeInstance {
            id: daedalus_registry::ids::NodeId::new("consumer"),
            bundle: None,
            label: None,
            inputs: vec!["in".into()],
            outputs: vec![],
            compute,
            const_inputs: vec![],
            sync_groups: vec![],
            metadata: Default::default(),
        },
    ];
    let edges = vec![Edge {
        from: PortRef {
            node: NodeRef(0),
            port: "out".into(),
        },
        to: PortRef {
            node: NodeRef(1),
            port: "in".into(),
        },
        metadata: Default::default(),
    }];
    Graph {
        nodes,
        edges,
        metadata: Default::default(),
        metadata_values: Default::default(),
    }
}

#[test]
fn planner_is_deterministic() {
    let registry = make_registry();
    let graph = make_graph(ComputeAffinity::CpuOnly);
    let engine = Engine::new(EngineConfig::default()).unwrap();
    let p1 = engine.plan(&registry, graph.clone()).unwrap().plan;
    let p2 = engine.plan(&registry, graph).unwrap().plan;
    assert_eq!(p1.hash, p2.hash);
    assert_eq!(p1.graph, p2.graph);
}

#[cfg(feature = "gpu-mock")]
#[test]
#[allow(clippy::field_reassign_with_default)]
fn runs_with_gpu_mock() {
    let registry = make_registry();
    let mut cfg = EngineConfig::default();
    cfg.gpu = GpuBackend::Mock;
    cfg.planner.enable_gpu = true;
    let engine = Engine::new(cfg).unwrap();
    let graph = make_graph(ComputeAffinity::GpuPreferred);
    let hits = Arc::new(std::sync::Mutex::new(0usize));
    let handler = {
        let hits = Arc::clone(&hits);
        move |node: &RuntimeNode, _ctx: &ExecutionContext, io: &mut NodeIo| {
            if node.id == "producer" {
                io.push_output(Some("out"), EdgePayload::Unit);
            } else if node.id == "consumer" {
                for _ in io.inputs_for("in") {
                    *hits.lock().unwrap() += 1;
                }
            }
            Ok(())
        }
    };
    let res = engine.run(&registry, graph, handler).unwrap();
    assert_eq!(*hits.lock().unwrap(), 1);
    assert!(
        res.telemetry.warnings.is_empty()
            || res.telemetry.warnings.iter().any(|w| w.contains("gpu")),
        "gpu telemetry should be present or empty depending on mock implementation"
    );
}