actual_panel_rows computation should always be resilient to parameters not consistent with the known L1 cache size, see comment
actual_panel_rows computation should always be resilient to parameters not consistent with the known L1 cache size, see comment

rotorliu/eigen,madlib/eigen_backup,rotorliu/eigen,madlib/eigen_backup,rotorliu/eigen,rotorliu/eigen,madlib/eigen_backup,madlib/eigen_backup