試験NCA-AIIO トピック1 問題22 スレッド

DAG-Based Workflow Orchestration (A) (Directed Acyclic Graph) is the most effective strategy for scheduling multiple AI training jobs with varying dependencies and priorities. A DAG defines a workflow where tasks (e.g., data preprocessing, model training, validation) are represented as nodes, and edges indicate dependencies and execution order. Tools like Apache Airflow or Kubeflow Pipelines, which integrate with NVIDIA GPU clusters, use DAGs to optimize resource utilization by scheduling jobs based on their dependencies and priority levels, ensuring that high-priority tasks access GPUs when needed while respecting inter-task relationships. This approach is scalable and automated, critical for large-scale environments.
* Manual Scheduling(B) is error-prone, time-consuming, and impractical for complex, dependency- driven workloads.
* FIFO Queue(C) executes jobs in arrival order, ignoring dependencies or priorities, leading to inefficient GPU use.
* Round-Robin Scheduling(D) distributes jobs evenly but doesn't account for dependencies, risking delays or resource contention.
NVIDIA's AI infrastructure supports orchestration tools like Kubeflow, which leverage DAGs for optimal job management (A).