.. _error-code-espp047:

.. meta::
   :description: AWS Neuron SDK Graph Compiler error code documentation for error ESPP047.

NCC_ESPP047
===========

**Error message**: The compiler found usage of an unsupported 8-bit floating-point data type.

Erroneous code example:

.. code-block:: python

    class Model(nn.Module):
        def __init__(self):
            super().__init__()
            self.linear1 = nn.Linear(10, 20)
            self.linear2 = nn.Linear(20, 10)

        def forward(self, x):
            x = self.linear1(x)
            x = torch.relu(x)
            x = self.linear2(x)
            return x

    # Unsupported 8-bit floating-point data type being used here
    input_tensor = torch.randn(1, 10).to(torch.float8_e4m3fn)


To fix this error:

.. code-block:: python

    class Model(nn.Module):
        def __init__(self):
            super().__init__()
            self.linear1 = nn.Linear(10, 20)
            self.linear2 = nn.Linear(20, 10)

        def forward(self, x):
            x = self.linear1(x)
            x = torch.relu(x)
            x = self.linear2(x)
            return x

    input_tensor = torch.randn(1, 10).to(torch.float8_e4m3fn)
    # Convert to a supported type
    input_tensor = input_tensor.to(torch.float16)