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Merge pull request #197 from weikuo0506/weikuo-llama3-70b-h200-recipe
Add Llama 3 70B 64gpus BF16 recipe for A3Ultra #recipebot
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‎training/a3ultra/llama3_70b/megatron-bridge-gke/nemo2602/64gpus-bf16-seq8192-gbs256/recipe/Chart.yaml‎

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# Copyright 2025 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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apiVersion: v2
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name: a3u_jobset_workload
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description: a3u_jobset_workload
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type: application
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version: 0.1.0
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appVersion: "1.16.0"

‎training/a3ultra/llama3_70b/megatron-bridge-gke/nemo2602/64gpus-bf16-seq8192-gbs256/recipe/README.md‎

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<!-- mdformat global-off -->
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# Pretrain llama3-70b workloads on a3ultra GKE Node pools with Nvidia Megatron-Bridge Framework
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This recipe outlines the steps for running a llama3-70b pretraining
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workload on [a3ultra GKE Node pools](https://cloud.google.com/kubernetes-engine) by using the
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[Megatron-Bridge pretraining workload](https://github.com/NVIDIA-NeMo/Megatron-Bridge).
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## Orchestration and deployment tools
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For this recipe, the following setup is used:
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- Orchestration - [Google Kubernetes Engine (GKE)](https://cloud.google.com/kubernetes-engine)
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- Pretraining job configuration and deployment - A Helm chart is used to
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configure and deploy the [Kubernetes Jobset](https://kubernetes.io/blog/2025/03/23/introducing-jobset) resource which manages the execution of the
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[Megatron-Bridge pretraining workload](https://github.com/NVIDIA-NeMo/Megatron-Bridge).
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## Test environment
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This recipe has been optimized for and tested with the following configuration:
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- GKE cluster
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Please follow Cluster Toolkit [instructions](https://github.com/GoogleCloudPlatform/cluster-toolkit/)
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to create your a3ultra GKE cluster.
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## Training dataset
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This recipe uses a mock pretraining dataset provided by the Megatron-Bridge framework.
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## Docker container image
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This recipe uses the following docker images:
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- `nvcr.io/nvidia/nemo:26.02`
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- `us-docker.pkg.dev/gce-ai-infra/gpudirect-gib/nccl-plugin-gib:v1.1.0`
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## Run the recipe
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From your client workstation, complete the following steps:
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### Configure environment settings
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Set the environment variables to match your environment:
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```bash
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export PROJECT_ID=<PROJECT_ID>
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export CLUSTER_REGION=<CLUSTER_REGION>
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export CLUSTER_NAME=<CLUSTER_NAME>
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export GCS_BUCKET=<GCS_BUCKET> # Note: path should not be prefixed with gs://
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export KUEUE_NAME=<KUEUE_NAME>
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export HF_TOKEN=<YOUR_HF_TOKEN>
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```
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Replace the following values:
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- `<PROJECT_ID>`: your Google Cloud project ID.
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- `<CLUSTER_REGION>`: the region where your cluster is located.
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- `<CLUSTER_NAME>`: the name of your GKE cluster.
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- `<GCS_BUCKET>`: the name of your Cloud Storage bucket. Don't include the `gs://` prefix.
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- `<KUEUE_NAME>`: the name of the Kueue local queue. The default queue created by the cluster toolkit is `a3ultra`. Make sure to verify the name of the local queue in your cluster.
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- `<YOUR_HF_TOKEN>`: Your HuggingFace token.
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Set the default project:
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```bash
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gcloud config set project $PROJECT_ID
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```
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### Get the recipe
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Clone the `gpu-recipes` repository and set a reference to the recipe folder.
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```
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git clone https://github.com/ai-hypercomputer/gpu-recipes.git
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cd gpu-recipes
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export REPO_ROOT=`git rev-parse --show-toplevel`
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export RECIPE_ROOT=$REPO_ROOT/training/a3ultra/llama3_70b/megatron-bridge-gke/nemo2602/64gpus-bf16-seq8192-gbs256/recipe
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cd $RECIPE_ROOT
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```
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### Get cluster credentials
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```
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gcloud container clusters get-credentials $CLUSTER_NAME --region $CLUSTER_REGION
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```
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### Configure and submit a pretraining job
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#### Using 8 node (64 gpus) bf16 precision
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To execute the job with the default settings, run the following command from
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your client:
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```bash
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cd $RECIPE_ROOT
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export WORKLOAD_NAME=$USER-a3ultra-llama3-70b-8node
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helm install $WORKLOAD_NAME . -f values.yaml \
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--set-file workload_launcher=launcher.sh \
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--set workload.image=nvcr.io/nvidia/nemo:26.02 \
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--set volumes.gcsMounts[0].bucketName=${GCS_BUCKET} \
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--set volumes.gcsMounts[0].mountPath=/job-logs \
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--set workload.envs[0].value=/job-logs/$WORKLOAD_NAME \
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--set queue=${KUEUE_NAME}
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```
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**Examples**
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- To set the number of training steps to 100, run the following command from
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your client:
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```bash
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cd $RECIPE_ROOT
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export WORKLOAD_NAME=$USER-a3ultra-llama3-70b-8node
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helm install $WORKLOAD_NAME . -f values.yaml \
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--set-file workload_launcher=launcher.sh \
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--set workload.image=nvcr.io/nvidia/nemo:26.02 \
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--set volumes.gcsMounts[0].bucketName=${GCS_BUCKET} \
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--set volumes.gcsMounts[0].mountPath=/job-logs \
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--set workload.envs[0].value=/job-logs/$WORKLOAD_NAME \
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--set queue=${KUEUE_NAME} \
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--set workload.arguments[0]="trainer.max_steps=100"
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```
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### Monitor the job
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To check the status of pods in your job, run the following command:
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```
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kubectl get pods | grep $USER-a3ultra-llama3-70b-8node
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```
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Replace the following:
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- JOB_NAME_PREFIX - your job name prefix. For example $USER-a3ultra-llama3-70b-8node.
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To get the logs for one of the pods, run the following command:
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```
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kubectl logs POD_NAME
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```
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Information about the training job's progress, including crucial details such as
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loss, step count, and step time, is generated by the rank 0 process.
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This process runs on the pod whose name begins with
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`JOB_NAME_PREFIX-workload-0-0`.
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For example: `$USER-a3ultra-llama3-70b-8node-workload-0-0-s9zrv`.
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### Uninstall the Helm release
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You can delete the job and other resources created by the Helm chart. To
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uninstall Helm, run the following command from your client:
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```bash
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helm uninstall $USER-a3ultra-llama3-70b-8node
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```

‎training/a3ultra/llama3_70b/megatron-bridge-gke/nemo2602/64gpus-bf16-seq8192-gbs256/recipe/launcher.sh‎

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usage()
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{
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cat << EOF
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usage: bash ./launcher.sh [config-override [config-override ...]]
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config-override (Optional) A NeMo configuration override. E.g. trainer.max_steps=10000.
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EOF
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}
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parse_args() {
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while [[ "$1" != "" ]]; do
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case $(grep -o "=" <<< "$1" | wc -l) in
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1 )
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config_overrides+=("$1")
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;;
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* )
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echo "Invalid config override: $1"
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usage
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exit 1
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esac
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shift
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done
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config_overrides="${config_overrides[*]}"
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}
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config_overrides=()
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parse_args "$@"
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if [[ -z "${config_overrides[*]}" ]]; then
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echo "No NeMo config overrides specified"
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else
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echo "NeMo config overrides:"
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echo " ${config_overrides}"
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fi
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export LD_LIBRARY_PATH="/usr/local/cuda/compat/lib:$NCCL_PLUGIN_PATH:$LD_LIBRARY_PATH"
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ldconfig "$LD_LIBRARY_PATH"
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echo "Added $LD_LIBRARY_PATH to ldconfig:"
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ldconfig -p | grep libcuda | sed 's/^/ /'
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echo ""
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if [[ -n "${EXPLICIT_LOG_DIR}" ]]; then
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explicit_log_dir="${EXPLICIT_LOG_DIR}"
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else
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explicit_log_dir="workload_logs"
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fi
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# Ensure explicit_log_dir is an absolute path before any cd commands
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if [[ "$explicit_log_dir" != /* ]]; then
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explicit_log_dir="${PWD}/${explicit_log_dir}"
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fi
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echo "Logging to ${explicit_log_dir}"
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if [[ -n "${TOKENIZER_PATH}" ]]; then
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echo "Getting tokenizer files"
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cp "${TOKENIZER_PATH}"/* .
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echo ""
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fi
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echo "Launching Torch distributed on the node rank $JOB_COMPLETION_INDEX out of $NNODES nodes"
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pip install git+https://github.com/NVIDIA/dllogger#egg=dllogger
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# Create the nsys directory.
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mkdir -p "${explicit_log_dir}/nsys"
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# Collect diagnostics to a single line
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kv="\"kernel_version\": \"$(uname --kernel-release)\""
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if command -v nvidia-smi &> /dev/null; then
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cuda_v=$(nvidia-smi -q -x | grep -Po '(?<=<cuda_version>).*(?=</cuda_version>)' || true)
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driver_v=$(nvidia-smi -q -x | grep -Po '(?<=<driver_version>).*(?=</driver_version>)' || true)
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vbios_v=$(nvidia-smi -q -x | grep -Po '(?<=<vbios_version>).*(?=</vbios_version>)' | head -n1 || true)
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kv="${kv}, \"cuda_version\": \"${cuda_v}\""
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kv="${kv}, \"driver_version\": \"${driver_v}\""
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kv="${kv}, \"vbios_version\": \"${vbios_v}\""
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fi
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echo "VERSION_DIAGNOSTICS: {${kv}}"
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export HF_TOKEN=YOUR_HF_TOKEN
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cd /opt
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rm -rf Megatron-Bridge
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git clone https://github.com/NVIDIA-NeMo/Megatron-Bridge.git
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cd Megatron-Bridge
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git checkout f7a9428f301fa17ac374d5e7166a63b0aa4771af
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git submodule update --init --recursive
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sed -i -e '/pretrain(config=recipe/i \ recipe.dist.distributed_timeout_minutes = 10' scripts/performance/run_script.py
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ls
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worker_command=$(cat <<- EOM
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if [ "\$RANK" -eq "0" ]; then
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echo "Worker 0 is stalling for a few seconds.." ;
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sleep 3 ;
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echo "The detected environment within worker rank 0 is:" ;
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env | sed 's/^/ /' ;
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fi ;
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cd /opt/Megatron-Bridge ;
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numactl \
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--cpunodebind=\$((LOCAL_RANK/4)) \
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--membind=\$((LOCAL_RANK/4)) nsys profile \
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-t nvtx,cuda \
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--cuda-event-trace=false \
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--sample=none \
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--capture-range=cudaProfilerApi \
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--capture-range-end=stop \
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--kill none \
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-o "${explicit_log_dir}/$JOB_IDENTIFIER/rank-\$RANK" \
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--force-overwrite true \
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--session-new "nsys-\$RANDOM-\$RANK" \
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nice -10 \
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python scripts/performance/run_script.py \
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--gpu h100 \
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--model_family_name llama \
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--model_recipe_name llama3_70b \
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--num_gpus 64 \
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--gpus_per_node 8 \
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--compute_dtype bf16 \
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--global_batch_size 256 \
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--micro_batch_size 1 \
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--seq_length 8192 \
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--tensor_model_parallel_size 4 \
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--pipeline_model_parallel_size 8 \
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--context_parallel_size 1 \
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--virtual_pipeline_model_parallel_size 5 \
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--use_megatron_fsdp False \
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--max_steps 50 \
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EOM
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)
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echo "$worker_command" > worker_command.sh
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chmod 777 worker_command.sh
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torchrun \
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--nproc-per-node="8" \
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--nnodes="8" \
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--node_rank="${JOB_COMPLETION_INDEX}" \
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--rdzv_id="${JOB_IDENTIFIER}" \
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--master_addr="${MASTER_ADDR}" \
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--master_port="${MASTER_PORT}" \
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--no-python bash worker_command.sh
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if [[ "$JOB_COMPLETION_INDEX" == "0" ]]; then
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mkdir -p "${ARTIFACT_DIR}"
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cp -r "${explicit_log_dir}"/* "${ARTIFACT_DIR}/"
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env > "${ARTIFACT_DIR}/environ.txt"
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ls "${ARTIFACT_DIR}"
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fi
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echo "Training completed"
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echo "Pod on $(hostname --fqdn) is exiting"

‎training/a3ultra/llama3_70b/megatron-bridge-gke/nemo2602/64gpus-bf16-seq8192-gbs256/recipe/templates/workload-config-configmap.yaml‎

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# yamllint disable
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# Copyright 2025 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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{{- if .Values.workload.configFile }}
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apiVersion: v1
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kind: ConfigMap
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metadata:
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name: "{{ .Release.Name }}-config"
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data:
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workload-configuration: |-
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{{- if .Values.workload_config }}
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{{ .Values.workload_config | nindent 4 }}
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{{- else }}
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{{ "config: null" | nindent 4 }}
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{{- end }}
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{{- end }}

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