timings_report_callgraph Subroutine

   SUBROUTINE timings_report_callgraph(filename)
      !! Write accumulated callgraph information as cachegrind-file.
      !! http://kcachegrind.sourceforge.net/cgi-bin/show.cgi/KcacheGrindCalltreeFormat

      CHARACTER(len=*), INTENT(in)                       :: filename

      INTEGER, PARAMETER                                 :: E = 1000, T = 100000

      INTEGER                                            :: i, unit
      TYPE(call_stat_type), POINTER                      :: c_stat
      TYPE(dict_i4tuple_callstat_item_type), &
         DIMENSION(:), POINTER                           :: ct_items
      TYPE(routine_stat_type), POINTER                   :: r_stat
      TYPE(timer_env_type), POINTER                      :: timer_env

      CALL open_file(file_name=filename, file_status="REPLACE", file_action="WRITE", &
                     file_form="FORMATTED", unit_number=unit)
      timer_env => get_timer_env()

      ! use outermost routine as total runtime
      r_stat => list_get(timer_env%routine_stats, 1)
      WRITE (UNIT=unit, FMT="(A)") "events: Walltime Energy"
      WRITE (UNIT=unit, FMT="(A,I0,1X,I0)") "summary: ", &
         INT(T*r_stat%incl_walltime_accu, KIND=int_8), &
         INT(E*r_stat%incl_energy_accu, KIND=int_8)

      DO i = 1, list_size(timer_env%routine_stats)
         r_stat => list_get(timer_env%routine_stats, i)
         WRITE (UNIT=unit, FMT="(A,I0,A,A)") "fn=(", r_stat%routine_id, ") ", r_stat%routineN
         WRITE (UNIT=unit, FMT="(A,I0,1X,I0)") "1 ", &
            INT(T*r_stat%excl_walltime_accu, KIND=int_8), &
            INT(E*r_stat%excl_energy_accu, KIND=int_8)
      END DO

      ct_items => dict_items(timer_env%callgraph)
      DO i = 1, SIZE(ct_items)
         c_stat => ct_items(i)%value
         WRITE (UNIT=unit, FMT="(A,I0,A)") "fn=(", ct_items(i)%key(1), ")"
         WRITE (UNIT=unit, FMT="(A,I0,A)") "cfn=(", ct_items(i)%key(2), ")"
         WRITE (UNIT=unit, FMT="(A,I0,A)") "calls=", c_stat%total_calls, " 1"
         WRITE (UNIT=unit, FMT="(A,I0,1X,I0)") "1 ", &
            INT(T*c_stat%incl_walltime_accu, KIND=int_8), &
            INT(E*c_stat%incl_energy_accu, KIND=int_8)
      END DO
      DEALLOCATE (ct_items)

      CALL close_file(unit_number=unit, file_status="KEEP")

   END SUBROUTINE timings_report_callgraph