title: spacy GPU process not working while installed prerequisites
body: <p>I have installed <code>spacy 2.3.0</code> from source and then according to <a href="https://mc.ai/spacy-training-using-gpu/" rel="nofollow noreferrer">this post</a> installed <code>thinc_gpu_ops-0.0.4</code> and <code>cupy[101]-7.6.0</code>.
  But this code returns <code>False</code>:</p>
  <pre><code>thinc_gpu_ops.AVAILABLE
  </code></pre>
  <p>My <code>Cuda</code> version is 10.1 and I'm working in <code>Linux 20</code>.</p>
  <p><em>P.S: I don't know if it helps but <code>tensorflow</code> lib detects 2 GPUs correctly using the code below:</em></p>
  <pre><code>import tensorflow as tf
  print(&quot;Num GPUs Available: &quot;, len(tf.config.experimental.list_physical_devices('GPU')))
  </code></pre>