thomelane commented on a change in pull request #15343: Revise Symbol tutorial
URL: https://github.com/apache/incubator-mxnet/pull/15343#discussion_r297296597
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File path: docs/tutorials/basic/symbol.md
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@@ -71,20 +42,14 @@ To complete this tutorial, we need:
```
pip install jupyter
```
-- GPUs - A section of this tutorial uses GPUs. If you don't have GPUs on your
machine, simply
-set the variable gpu_device to mx.cpu().
+- GPUs (optional). A section of this tutorial uses GPUs. If you don't have
GPUs on your machine, simply set the variable `gpu_device` to `mx.cpu()`.
Review comment:
Should automatically change context depending on whether a GPU is available
or not.
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