title: Running out of memory with an Amazon GPU instance
body: <p>I have rented a GPU on Amazon AWS. it has the following description:</p>
  
  <pre><code> ---------------------------------
  | GPU Instance     |   g2.2xlarge |
  | vCPUs            |   8          |
  | Memory Gib       |   15         |
  | Instance storage |   1x60 (SSD) |
   ---------------------------------
  </code></pre>
  
  <p>I transferred a 5 GB file and when trying to unzip it, it ran out of memory. the folder size after decompressing 5.23 GB.</p>
  
  <p>When I run <code>df -h</code>, I got the following:</p>
  
  <pre><code>Filesystem      Size  Used Avail Use% Mounted on
  /dev/xvda1       20G   19G  4.0K 100% /
  none            4.0K     0  4.0K   0% /sys/fs/cgroup
  udev            7.4G  8.0K  7.4G   1% /dev
  tmpfs           1.5G  772K  1.5G   1% /run
  none            5.0M     0  5.0M   0% /run/lock
  none            7.4G     0  7.4G   0% /run/shm
  none            100M     0  100M   0% /run/user
  /dev/xvdb        64G   52M   61G   1% /mnt
  </code></pre>
  
  <p>It seems that my data are stored in xvda1. can I store them in xvdb? if yes, will there be a difference in performance?</p>