src/accelerate/utils/launch.py [175:193]:
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    current_env["ACCELERATE_MIXED_PRECISION"] = str(mixed_precision)
    if args.mixed_precision.lower() == "fp8":
        if not is_fp8_available():
            raise RuntimeError(
                "FP8 is not available on this machine. Please ensure that either Transformer Engine, MSAMP or torchao is installed."
            )
        current_env = setup_fp8_env(args, current_env)

    try:
        dynamo_backend = DynamoBackend(args.dynamo_backend.upper())
    except ValueError:
        raise ValueError(
            f"Unknown dynamo backend: {args.dynamo_backend.upper()}. Choose between {DynamoBackend.list()}."
        )
    current_env["ACCELERATE_DYNAMO_BACKEND"] = dynamo_backend.value
    current_env["ACCELERATE_DYNAMO_MODE"] = args.dynamo_mode
    current_env["ACCELERATE_DYNAMO_USE_FULLGRAPH"] = str(args.dynamo_use_fullgraph)
    current_env["ACCELERATE_DYNAMO_USE_DYNAMIC"] = str(args.dynamo_use_dynamic)
    current_env["ACCELERATE_DYNAMO_USE_REGIONAL_COMPILATION"] = str(args.dynamo_use_regional_compilation)
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src/accelerate/utils/launch.py [284:302]:
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    current_env["ACCELERATE_MIXED_PRECISION"] = str(mixed_precision)
    if args.mixed_precision.lower() == "fp8":
        if not is_fp8_available():
            raise RuntimeError(
                "FP8 is not available on this machine. Please ensure that either Transformer Engine, MSAMP or torchao is installed."
            )
        current_env = setup_fp8_env(args, current_env)

    try:
        dynamo_backend = DynamoBackend(args.dynamo_backend.upper())
    except ValueError:
        raise ValueError(
            f"Unknown dynamo backend: {args.dynamo_backend.upper()}. Choose between {DynamoBackend.list()}."
        )
    current_env["ACCELERATE_DYNAMO_BACKEND"] = dynamo_backend.value
    current_env["ACCELERATE_DYNAMO_MODE"] = args.dynamo_mode
    current_env["ACCELERATE_DYNAMO_USE_FULLGRAPH"] = str(args.dynamo_use_fullgraph)
    current_env["ACCELERATE_DYNAMO_USE_DYNAMIC"] = str(args.dynamo_use_dynamic)
    current_env["ACCELERATE_DYNAMO_USE_REGIONAL_COMPILATION"] = str(args.dynamo_use_regional_compilation)
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