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查看运行结果

当节点发生故障时，Volcano会将该训练任务删除，Resilience Controller根据可用资源修改任务资源需求，Volcano调度到剩余可用资源上继续运行。

弹性训练情况

  1. 登录管理节点，执行以下命令查看训练任务运行情况。
    ~# kubectl get pods -A -o wide
    以全部资源为2节点16卡，下发2节点16卡任务为例，回显示例如下。该回显表示训练任务正常执行时的任务运行情况。
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    NAMESPACE        NAME                                       READY   STATUS              RESTARTS   AGE     IP                NODE         NOMINATED NODE   READINESS GATES
……
vcjob            mindx-dls-test-default-test-0              1/1     Running   0          47s     192.168.70.82   Node-1   <none>           <none>
vcjob            mindx-dls-test-default-test-1              1/1     Running   0          47s     192.168.39.9    Node-2     <none>           <none>
……
  2. 当Node-1发生NPU网络故障时，Volcano删除任务。执行以下命令查看训练任务终止情况。
     kubectl get pods -A -o wide

    回显示例如下，表示训练任务被删除。

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    NAMESPACE        NAME                                       READY   STATUS              RESTARTS   AGE     IP                NODE         NOMINATED NODE   READINESS GATES
……
vcjob            mindx-dls-test-default-test-0              0/1     Terminating   0          6m59s     192.168.70.82   Node-1   <none>           <none>
vcjob            mindx-dls-test-default-test-1              1/1     Terminating   0          6m59s     192.168.39.9    Node-2     <none>           <none>
……
  3. 等待一段时间，执行以下命令查看训练任务弹性伸缩情况。
     kubectl get pods -A -o wide

    回显示例如下，表示训练任务根据当前可用节点数将2节点16卡任务伸缩为1节点8卡任务。

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    NAMESPACE        NAME                                       READY   STATUS              RESTARTS   AGE     IP                NODE         NOMINATED NODE   READINESS GATES
……
vcjob            mindx-dls-test-default-test-0              1/1     Running   0          107s    192.168.70.86   Node-2   <none>           <none>
……

查看单个Pod运行情况

执行以下命令，查看单个Pod的训练任务运行情况。
kubectl logs mindx-dls-test-default-test-0 -n vcjob -f
  • 回显示例如下表示发生故障时，使用最近保存的第39步的checkpoint文件恢复，实现训练任务第40个epoch开始继续训练。
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    ...
2023-06-09 22:17:33,441:INFO:--> pre_trained: /job/code/mindspore/output/resnet50/imagenet2012/ckpt_0/resnet50-39_48.ckpt
2023-06-09 22:17:33,441:INFO:--> run_eval: False
2023-06-09 22:17:33,441:INFO:--> eval_dataset_path: 
2023-06-09 22:17:33,441:INFO:--> parameter_server: False
2023-06-09 22:17:33,441:INFO:--> filter_weight: False
2023-06-09 22:17:33,441:INFO:--> save_best_ckpt: True
2023-06-09 22:17:33,441:INFO:--> eval_start_epoch: 40
2023-06-09 22:17:33,441:INFO:--> eval_interval: 1
2023-06-09 22:17:33,441:INFO:--> enable_cache: False
2023-06-09 22:17:33,441:INFO:--> cache_session_id: 
2023-06-09 22:17:33,441:INFO:--> mode_name: GRAPH
2023-06-09 22:17:33,441:INFO:--> boost_mode: O0
2023-06-09 22:17:33,441:INFO:--> conv_init: XavierUniform
2023-06-09 22:17:33,441:INFO:--> dense_init: TruncatedNormal
2023-06-09 22:17:33,442:INFO:--> all_reduce_fusion_config: [85, 160]
2023-06-09 22:17:33,442:INFO:--> train_image_size: 224
2023-06-09 22:17:33,442:INFO:--> eval_image_size: 224
2023-06-09 22:17:33,442:INFO:--> device_id: 0
2023-06-09 22:17:33,442:INFO:--> width: 224
2023-06-09 22:17:33,442:INFO:--> height: 224
2023-06-09 22:17:33,442:INFO:--> file_name: resnet50
2023-06-09 22:17:33,442:INFO:--> file_format: MINDIR
2023-06-09 22:17:33,442:INFO:--> ckpt_file: 
2023-06-09 22:17:33,442:INFO:--> network_dataset: resnet50_imagenet2012
2023-06-09 22:17:33,442:INFO:--> save_graphs: False
2023-06-09 22:17:33,442:INFO:--> save_graphs_path: ./graphs
2023-06-09 22:17:33,442:INFO:--> has_trained_epoch: 0
2023-06-09 22:17:33,442:INFO:--> has_trained_step: 0
2023-06-09 22:17:33,442:INFO:--> result_path: 
2023-06-09 22:17:33,442:INFO:--> label_path: 
2023-06-09 22:17:33,442:INFO:--> config_path: /job/code/mindspore/config/resnet50_imagenet2012_config.yaml
2023-06-09 22:17:33,442:INFO:--> rank_id: 0
2023-06-09 22:17:33,442:INFO:--> save_ckpt_dir: /job/code/mindspore/output/resnet50/imagenet2012/ckpt
2023-06-09 22:17:33,442:INFO:--> log_dir: /job/code/mindspore/output/resnet50/imagenet2012/log
2023-06-09 22:17:33,442:INFO:--> logger: <LOGGER resnet (NOTSET)>
2023-06-09 22:17:33,442:INFO:
[WARNING] DEVICE(312,fffd6e363470,python):2023-06-09-22:17:33.999.925 [mindspore/ccsrc/plugin/device/ascend/hal/hardware/ge_graph_executor.cc:128] RunGEInitGraph] Can not find init_subgraph.kernel_graph_0 subgraph, don't need data init subgraph in INFER mode.
[WARNING] DEVICE(312,fffd6e363470,python):2023-06-09-22:17:43.733.157 [mindspore/ccsrc/plugin/device/ascend/hal/hardware/ge_graph_executor.cc:128] RunGEInitGraph] Can not find init_subgraph.kernel_graph_1 sub graph, don't need data init subgraph in INFER mode.
....2023-06-09 22:18:45,025:INFO:epoch: [40/90] loss: 3.465011, epoch time: 71.582 s, per step time: 1491.285 ms
2023-06-09 22:18:49,453:INFO:epoch: [41/90] loss: 3.396700, epoch time: 4.428 s, per step time: 92.245 ms
.2023-06-09 22:19:02,685:INFO:epoch: [42/90] loss: 3.297215, epoch time: 13.232 s, per step time: 275.659 ms
2023-06-09 22:19:07,323:INFO:epoch: [43/90] loss: 3.289656, epoch time: 4.638 s, per step time: 96.622 ms
2023-06-09 22:19:11,746:INFO:epoch: [44/90] loss: 3.266534, epoch time: 4.423 s, per step time: 92.139 ms
2023-06-09 22:19:16,913:INFO:epoch: [45/90] loss: 3.180886, epoch time: 5.167 s, per step time: 107.650 ms
2023-06-09 22:19:21,377:INFO:epoch: [46/90] loss: 2.895963, epoch time: 4.464 s, per step time: 92.997 ms
2023-06-09 22:19:25,798:INFO:epoch: [47/90] loss: 2.815258, epoch time: 4.420 s, per step time: 92.090 ms
2023-06-09 22:19:31,122:INFO:epoch: [48/90] loss: 2.826911, epoch time: 5.324 s, per step time: 110.918 ms
2023-06-09 22:19:35,591:INFO:epoch: [49/90] loss: 2.712467, epoch time: 4.469 s, per step time: 93.098 ms
...
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