" class="externalLink">List</a>&lt;<a href="AColGroup.html" title="class in org.apache.sysds.runtime.compress.colgroup">AColGroup</a>&gt;&nbsp;colGroups)</pre>
<div class="block">Get the size on disk for the given list of column groups</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>colGroups</code> - A List of column groups to see the disk space required for.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The exact disk size required for writing the compressed matrix.