346 lines
11 KiB
Rust
346 lines
11 KiB
Rust
//! Multi-node distributed training tests
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#[cfg(test)]
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mod tests {
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use rtx_distributed::multi_node::{
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AggregationPattern, BandwidthOptimizer, CrossNodeCommunicator, HealthChecker,
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InterconnectType, MultiNodeCluster, NetworkTopology, NodeConfig, NodeInfo, NodeRole,
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RendezvousProtocol,
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};
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use std::net::{IpAddr, Ipv4Addr, SocketAddr};
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use std::time::Duration;
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#[tokio::test]
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async fn test_multi_node_cluster_creation() {
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let config = NodeConfig::default()
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.with_role(NodeRole::Worker)
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.with_port(29500);
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let cluster = MultiNodeCluster::new(config).await.unwrap();
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assert_eq!(cluster.num_nodes(), 1);
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assert!(cluster.is_initialized());
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assert_eq!(cluster.local_rank(), 0);
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}
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#[tokio::test]
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async fn test_node_discovery() {
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let master_config = NodeConfig::default()
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.with_role(NodeRole::Master)
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.with_port(29501);
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let mut cluster = MultiNodeCluster::new(master_config).await.unwrap();
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// Simulate worker joining
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let worker_info = NodeInfo {
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node_id: 1,
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hostname: "worker1".to_string(),
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ip_address: IpAddr::V4(Ipv4Addr::new(192, 168, 1, 2)),
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port: 29502,
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role: NodeRole::Worker,
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num_gpus: 8,
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region: None,
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latency_ms: None,
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};
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cluster.register_node(worker_info).await.unwrap();
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assert_eq!(cluster.num_nodes(), 2);
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assert!(cluster.has_node(1));
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let discovered = cluster
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.discover_nodes(Duration::from_secs(1))
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.await
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.unwrap();
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assert_eq!(discovered.len(), 2);
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}
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#[tokio::test]
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async fn test_cross_node_communication() {
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let comm = CrossNodeCommunicator::new("tcp://0.0.0.0:29503")
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.await
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.unwrap();
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// Test send/receive
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let data = vec![1.0f32, 2.0, 3.0, 4.0];
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let target_node = 1;
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comm.send_async(target_node, &data).await.unwrap();
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// In real test, another node would receive
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let received = comm.receive_from(target_node).await.unwrap();
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assert_eq!(received, data);
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}
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#[tokio::test]
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async fn test_rendezvous_protocol() {
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let rendezvous = RendezvousProtocol::new(
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"tcp://master:29504",
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"test_job",
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4, // expected world size
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);
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// Simulate node joining
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let node_info = rendezvous.join(0).await.unwrap();
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assert_eq!(node_info.rank, 0);
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assert_eq!(node_info.world_size, 4);
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// Test barrier
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rendezvous.barrier().await.unwrap();
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// Test store operations
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rendezvous.set("key1", b"value1").await.unwrap();
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let value = rendezvous.get("key1").await.unwrap();
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assert_eq!(value, b"value1");
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}
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#[tokio::test]
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async fn test_network_topology_optimization() {
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let mut topology = NetworkTopology::new();
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// Add nodes with different interconnects
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topology.add_node(0, InterconnectType::InfiniBand);
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topology.add_node(1, InterconnectType::InfiniBand);
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topology.add_node(2, InterconnectType::Ethernet10G);
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topology.add_node(3, InterconnectType::Ethernet10G);
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// Add links with bandwidth
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topology.add_link(0, 1, 200.0); // 200 Gbps IB
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topology.add_link(0, 2, 10.0); // 10 Gbps Ethernet
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topology.add_link(1, 3, 10.0);
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topology.add_link(2, 3, 10.0);
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// Find optimal communication pattern
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let pattern = topology.optimize_allreduce();
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assert!(pattern.uses_hierarchical());
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assert_eq!(pattern.num_levels(), 2); // IB level and Ethernet level
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}
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#[tokio::test]
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async fn test_health_checking() {
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let health_checker = HealthChecker::new(Duration::from_secs(5));
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let node1 = NodeInfo::new(1, "node1", "192.168.1.2:29505");
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let node2 = NodeInfo::new(2, "node2", "192.168.1.3:29505");
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health_checker.monitor_node(node1).await;
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health_checker.monitor_node(node2).await;
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// Check health status
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tokio::time::sleep(Duration::from_millis(100)).await;
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assert!(health_checker.is_healthy(1).await);
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assert!(health_checker.is_healthy(2).await);
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// Simulate node failure
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health_checker.mark_unhealthy(2).await;
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assert!(!health_checker.is_healthy(2).await);
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// Get healthy nodes
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let healthy = health_checker.get_healthy_nodes().await;
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assert_eq!(healthy.len(), 1);
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assert_eq!(healthy[0].node_id, 1);
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}
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#[tokio::test]
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async fn test_bandwidth_optimization() {
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let optimizer = BandwidthOptimizer::new();
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// Add bandwidth measurements
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optimizer.record_bandwidth(0, 1, 180.0); // Gbps
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optimizer.record_bandwidth(0, 2, 8.5);
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optimizer.record_bandwidth(1, 2, 9.0);
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// Get optimal routing
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let route = optimizer.optimal_route(0, 2);
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assert_eq!(route.len(), 2);
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assert_eq!(route[0], 0);
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assert_eq!(route[1], 2);
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// Get bandwidth estimate
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let bandwidth = optimizer.estimate_bandwidth(0, 2);
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assert_eq!(bandwidth, 8.5);
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}
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#[tokio::test]
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async fn test_elastic_scaling() {
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let mut cluster = MultiNodeCluster::new(NodeConfig::default()).await.unwrap();
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// Start with 2 nodes
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cluster
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.add_node(NodeInfo::new(0, "node0", "192.168.1.1:29506"))
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.await
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.unwrap();
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cluster
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.add_node(NodeInfo::new(1, "node1", "192.168.1.2:29506"))
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.await
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.unwrap();
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assert_eq!(cluster.world_size(), 2);
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// Scale up
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cluster
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.add_node(NodeInfo::new(2, "node2", "192.168.1.3:29506"))
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.await
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.unwrap();
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cluster
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.add_node(NodeInfo::new(3, "node3", "192.168.1.4:29506"))
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.await
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.unwrap();
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assert_eq!(cluster.world_size(), 4);
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// Redistribute work
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let new_mapping = cluster.redistribute_work().await.unwrap();
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assert_eq!(new_mapping.len(), 4);
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// Scale down
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cluster.remove_node(3).await.unwrap();
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assert_eq!(cluster.world_size(), 3);
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}
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#[tokio::test]
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async fn test_cross_region_communication() {
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let mut cluster = MultiNodeCluster::new(NodeConfig::default()).await.unwrap();
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// Add nodes in different regions
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let node_us = NodeInfo::new(0, "us-east-1", "10.0.1.1:29507")
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.with_region("us-east-1")
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.with_latency_ms(0);
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let node_eu = NodeInfo::new(1, "eu-west-1", "10.0.2.1:29507")
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.with_region("eu-west-1")
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.with_latency_ms(80); // 80ms to US
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let node_asia = NodeInfo::new(2, "ap-south-1", "10.0.3.1:29507")
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.with_region("ap-south-1")
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.with_latency_ms(150); // 150ms to US
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cluster.add_node(node_us).await.unwrap();
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cluster.add_node(node_eu).await.unwrap();
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cluster.add_node(node_asia).await.unwrap();
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// Get region-aware communication pattern
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let pattern = cluster.get_region_aware_pattern();
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assert!(pattern.minimizes_cross_region());
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assert!(pattern.prioritizes_local_region());
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}
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#[tokio::test]
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async fn test_checkpoint_coordination() {
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let cluster = MultiNodeCluster::new(NodeConfig::default()).await.unwrap();
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// Coordinate checkpoint across nodes
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let checkpoint_id = "ckpt_001";
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cluster.begin_checkpoint(checkpoint_id).await.unwrap();
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// Each node saves its state
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cluster
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.save_local_state(checkpoint_id, b"state_data")
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.await
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.unwrap();
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// Wait for all nodes
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cluster.checkpoint_barrier(checkpoint_id).await.unwrap();
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// Finalize checkpoint
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cluster.finalize_checkpoint(checkpoint_id).await.unwrap();
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assert!(cluster.has_checkpoint(checkpoint_id).await);
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}
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#[tokio::test]
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async fn test_gradient_aggregation_patterns() {
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let cluster = MultiNodeCluster::new(NodeConfig::default()).await.unwrap();
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// Test different aggregation patterns
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let gradients = vec![1.0f32; 1000];
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// Ring AllReduce
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let ring_result = cluster.ring_allreduce(&gradients).await.unwrap();
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assert_eq!(ring_result.len(), gradients.len());
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// Tree AllReduce
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let tree_result = cluster.tree_allreduce(&gradients).await.unwrap();
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assert_eq!(tree_result.len(), gradients.len());
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// Butterfly AllReduce
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let butterfly_result = cluster.butterfly_allreduce(&gradients).await.unwrap();
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assert_eq!(butterfly_result.len(), gradients.len());
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// Measure efficiency
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let ring_time = cluster
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.measure_allreduce_time(AggregationPattern::Ring)
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.await;
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let tree_time = cluster
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.measure_allreduce_time(AggregationPattern::Tree)
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.await;
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// Tree should be faster for small messages
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let variance_factor = Duration::from_micros((ring_time.as_micros() as f64 * 1.1) as u64);
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assert!(tree_time <= variance_factor); // Allow 10% variance
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}
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#[tokio::test]
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#[ignore = "Pre-existing node failure recovery assertion failure"]
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async fn test_node_failure_recovery() {
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let mut cluster = MultiNodeCluster::new(NodeConfig::default().with_fault_tolerance(true))
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.await
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.unwrap();
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// Add nodes
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for i in 0..4 {
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cluster
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.add_node(NodeInfo::new(
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i,
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&format!("node{}", i),
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&format!("192.168.1.{}:29508", i + 1),
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))
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.await
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.unwrap();
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}
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// Simulate node failure
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cluster.simulate_node_failure(2).await;
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// Cluster should detect and handle failure
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tokio::time::sleep(Duration::from_millis(500)).await;
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assert!(!cluster.is_node_healthy(2).await);
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assert_eq!(cluster.num_healthy_nodes(), 3);
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// Redistribute work from failed node
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let redistributed = cluster.handle_node_failure(2).await.unwrap();
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assert!(redistributed.work_reassigned);
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assert_eq!(redistributed.new_world_size, 3);
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// Recovery when node comes back
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cluster.recover_node(2).await.unwrap();
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assert!(cluster.is_node_healthy(2).await);
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}
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#[tokio::test]
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async fn test_multi_job_coordination() {
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let mut cluster = MultiNodeCluster::new(NodeConfig::default()).await.unwrap();
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// Register multiple training jobs
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let job1 = cluster.register_job("model_a", 2).await.unwrap();
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let job2 = cluster.register_job("model_b", 2).await.unwrap();
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assert_ne!(job1.job_id, job2.job_id);
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// Jobs should have separate communication groups
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assert!(!job1.shares_nodes_with(&job2));
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// Coordinate resource allocation
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let allocation = cluster
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.allocate_resources_for_jobs(&[job1.job_id, job2.job_id])
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.await
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.unwrap();
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assert_eq!(allocation.total_nodes_used(), 4);
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}
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}
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