Function gpu_bfs 

pub async fn gpu_bfs(
    device: &GpuDevice,
    buffers: &GpuCsrBuffers,
    source: NodeId,
) -> Result<GpuBfsResult>

Run GPU BFS from source node

Errors

Returns error if:

• GPU shader compilation fails
• Buffer creation fails
• Shader dispatch fails
• Result readback fails

Example

let device = GpuDevice::new().await?;
let mut graph = CsrGraph::new();
graph.add_edge(NodeId(0), NodeId(1), 1.0)?;
graph.add_edge(NodeId(1), NodeId(2), 1.0)?;

let buffers = GpuCsrBuffers::from_csr_graph(&device, &graph)?;
let result = gpu_bfs(&device, &buffers, NodeId(0)).await?;

assert_eq!(result.distance(NodeId(0)), Some(0));
assert_eq!(result.distance(NodeId(1)), Some(1));
assert_eq!(result.distance(NodeId(2)), Some(2));