# TensorFlow w/ Lambda Stack

## post by lunkwill on Sep 9, 2022

[lunkwill](https://deeptalk.lambda.ai/u/lunkwill)

I have the latest version of Lambda stack installed on a Lambda Vector workstation. When importing tensorflow into python, I get “Invalid MIT-MAGIC-COOKIE-1 key” error. It does not appear to affect tensorflow… but I would like to resolve the error. Any advice?

Further to this, when doing the following “msg = tf.constant(‘Hello, Tensorflow!’)”, it generates a number of messages such as the following:

```
> 2022-09-09 19:21:50.690001: I tensorflow/stream_executor/cuda/cuda_gpu_executor.cc:975] successful NUMA node read from SysFS had negative value (-1), but there must be at least one NUMA node, so returning NUMA node zero
> 2022-09-09 19:21:50.690394: I tensorflow/stream_executor/cuda/cuda_gpu_executor.cc:975] successful NUMA node read from SysFS had negative value (-1), but there must be at least one NUMA node, so returning NUMA node zero
> 2022-09-09 19:21:50.690728: I tensorflow/stream_executor/cuda/cuda_gpu_executor.cc:975] successful NUMA node read from SysFS had negative value (-1), but there must be at least one NUMA node, so returning NUMA node zero
> 2022-09-09 19:21:50.718506: I tensorflow/stream_executor/cuda/cuda_gpu_executor.cc:975] successful NUMA node read from SysFS had negative value (-1), but there must be at least one NUMA node, so returning NUMA node zero
> 2022-09-09 19:21:50.718786: I tensorflow/stream_executor/cuda/cuda_gpu_executor.cc:975] successful NUMA node read from SysFS had negative value (-1), but there must be at least one NUMA node, so returning NUMA node zero
> 2022-09-09 19:21:50.719007: I tensorflow/stream_executor/cuda/cuda_gpu_executor.cc:975] successful NUMA node read from SysFS had negative value (-1), but there must be at least one NUMA node, so returning NUMA node zero
```

If you follow the above with “tf.print(msg)” it generates the correct response, but it appears there are a number of issues with the tensorflow install in Lambda stack. Any advice on fixing this?

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