ver y, but starting from a base index different from y). </td></tr>
    <tr><td class="paramname">y</td><td>The y input vector </td></tr>
    <tr><td class="paramname">alpha</td><td>The alpha scalar </td></tr>
    <tr><td class="paramname">dM</td><td>The DIA non zero values allocation pointer (stored column-major) </td></tr>
    <tr><td class="paramname">offsets</td><td>The DIA diagonals offsets vector </td></tr>
    <tr><td class="paramname">dMPitch</td><td>the pitch (in number of elements) of the allocati