OpenMC/tests/regression_tests/survival_biasing/settings.xml

<?xml version="1.0"?>
<settings>

  <survival_biasing>true</survival_biasing>

  <cutoff>
    <weight>0.50</weight>
    <weight_avg>1.2</weight_avg>
  </cutoff>

  <run_mode>eigenvalue</run_mode>
  <batches>10</batches>
  <inactive>5</inactive>
  <particles>1000</particles>

  <source>
    <space type="box">
      <parameters>-4 -4 -4  4  4  4</parameters>
    </space>
  </source>

</settings>