 <OpenGeoSysProject>

   <time_loop>

     <include file="steady_state_diffusion.include" />

     <output>

       <type>XDMF</type>

       <prefix>cube_1e3_np2</prefix>

       <variables>

         <variable>pressure</variable>

         <variable>v</variable>

       </variables>

       <suffix>ts{:timestep}_t_{:time}</suffix>

       <timesteps>

         <pair>

           <repeat>2</repeat>

           <each_steps>1</each_steps>

         </pair>

       </timesteps>

     </output>

   </time_loop>

   <include file="cube_1e3.include" />

 </OpenGeoSysProject>