[8] | 1 | ! Timer functions to calculate MPI use speed up. |
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| 2 | |
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| 3 | !- |
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| 4 | !- $Header: /home/ssipsl/CVSREP/ORCHIDEE/src_parallel/timer.f90,v 1.2 2007/06/12 08:04:26 ssipsl Exp $ |
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| 5 | !- |
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| 6 | |
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| 7 | MODULE timer |
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| 8 | |
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| 9 | USE constantes |
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| 10 | |
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| 11 | INTEGER, PARAMETER :: nb_timer=2 |
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| 12 | INTEGER, PARAMETER :: timer_global=1 |
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| 13 | INTEGER, PARAMETER :: timer_mpi=2 |
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| 14 | INTEGER, PARAMETER :: stopped = 1 |
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| 15 | INTEGER, PARAMETER :: running = 2 |
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| 16 | INTEGER, PARAMETER :: suspended = 3 |
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| 17 | |
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| 18 | DOUBLE PRECISION, DIMENSION(nb_timer),SAVE :: cpu_timer |
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| 19 | DOUBLE PRECISION, DIMENSION(nb_timer),SAVE :: real_timer |
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| 20 | INTEGER, DIMENSION(nb_timer),SAVE :: timer_state |
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| 21 | DOUBLE PRECISION, DIMENSION(nb_timer),SAVE :: last_cpu_time |
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| 22 | INTEGER, DIMENSION(nb_timer),SAVE :: last_real_time |
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| 23 | |
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| 24 | |
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| 25 | |
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| 26 | |
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| 27 | CONTAINS |
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| 28 | |
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| 29 | SUBROUTINE init_timer |
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| 30 | IMPLICIT NONE |
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| 31 | |
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| 32 | cpu_timer(:)=0. |
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| 33 | real_timer(:)=0. |
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| 34 | timer_state(:)=stopped |
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| 35 | last_cpu_time(:)=0. |
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| 36 | last_real_time(:)=0 |
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| 37 | |
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| 38 | END SUBROUTINE init_timer |
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| 39 | |
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| 40 | |
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| 41 | SUBROUTINE start_timer(no_timer) |
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| 42 | IMPLICIT NONE |
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| 43 | INTEGER :: no_timer |
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| 44 | DOUBLE PRECISION :: x |
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| 45 | |
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| 46 | IF (timer_state(no_timer)/=stopped) THEN |
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| 47 | STOP 'start_timer :: timer is already running or suspended' |
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| 48 | ELSE |
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| 49 | timer_state(no_timer)=running |
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| 50 | ENDIF |
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| 51 | |
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| 52 | cpu_timer(no_timer)=0. |
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| 53 | real_timer(no_timer)=0. |
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| 54 | x=Diff_real_time(no_timer) |
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| 55 | x=Diff_cpu_time(no_timer) |
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| 56 | |
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| 57 | END SUBROUTINE start_timer |
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| 58 | |
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| 59 | |
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| 60 | |
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| 61 | SUBROUTINE stop_timer(no_timer) |
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| 62 | IMPLICIT NONE |
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| 63 | INTEGER :: no_timer |
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| 64 | |
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| 65 | IF (timer_state(no_timer)==running) THEN |
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| 66 | CALL suspend_timer(no_timer) |
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| 67 | ELSE IF (timer_state(no_timer)==stopped) THEN |
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| 68 | WRITE(numout,*) 'stop_timer :: timer is already stopped' |
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| 69 | ENDIF |
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| 70 | |
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| 71 | timer_state(no_timer)=stopped |
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| 72 | |
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| 73 | END SUBROUTINE stop_timer |
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| 74 | |
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| 75 | |
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| 76 | |
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| 77 | SUBROUTINE resume_timer(no_timer) |
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| 78 | IMPLICIT NONE |
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| 79 | INTEGER :: no_timer |
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| 80 | DOUBLE PRECISION :: x |
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| 81 | IF (timer_state(no_timer)/=suspended) THEN |
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| 82 | STOP 'resume_timer :: timer is not suspended' |
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| 83 | ELSE |
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| 84 | timer_state(no_timer)=running |
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| 85 | ENDIF |
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| 86 | |
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| 87 | x=Diff_cpu_time(no_timer) |
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| 88 | x=Diff_real_time(no_timer) |
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| 89 | |
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| 90 | END SUBROUTINE resume_timer |
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| 91 | |
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| 92 | |
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| 93 | |
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| 94 | SUBROUTINE suspend_timer(no_timer) |
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| 95 | |
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| 96 | IMPLICIT NONE |
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| 97 | INTEGER :: no_timer |
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| 98 | |
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| 99 | IF (timer_state(no_timer)/=running) THEN |
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| 100 | STOP 'suspend_timer :: timer is not running' |
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| 101 | ELSE |
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| 102 | timer_state(no_timer)=suspended |
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| 103 | ENDIF |
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| 104 | |
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| 105 | cpu_timer(no_timer)=cpu_timer(no_timer)+Diff_cpu_time(no_timer) |
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| 106 | real_timer(no_timer)=real_timer(no_timer)+Diff_real_time(no_timer) |
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| 107 | |
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| 108 | END SUBROUTINE suspend_timer |
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| 109 | |
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| 110 | |
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| 111 | FUNCTION diff_real_time(no_timer) |
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| 112 | IMPLICIT NONE |
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| 113 | INTEGER :: no_timer |
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| 114 | DOUBLE PRECISION :: Diff_real_Time |
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| 115 | integer :: Last_Count,count,count_rate,count_max |
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| 116 | |
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| 117 | Last_Count=Last_real_time(no_timer) |
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| 118 | |
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| 119 | call system_clock(count,count_rate,count_max) |
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| 120 | if (Count>=Last_Count) then |
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| 121 | Diff_real_time=(1.*(Count-last_Count))/count_rate |
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| 122 | else |
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| 123 | Diff_real_time=(1.*(Count-last_Count+Count_max))/count_rate |
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| 124 | endif |
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| 125 | Last_real_time(no_timer)=Count |
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| 126 | |
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| 127 | END FUNCTION diff_real_time |
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| 128 | |
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| 129 | function Diff_Cpu_Time(no_timer) |
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| 130 | implicit none |
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| 131 | INTEGER :: no_timer |
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| 132 | DOUBLE PRECISION :: Diff_Cpu_Time |
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| 133 | DOUBLE PRECISION :: Last_Count,Count |
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| 134 | |
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| 135 | Last_Count=Last_cpu_time(no_timer) |
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| 136 | |
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| 137 | call cpu_time(Count) |
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| 138 | Diff_Cpu_Time=Count-Last_Count |
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| 139 | Last_cpu_time(no_timer)=Count |
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| 140 | |
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| 141 | end function Diff_Cpu_Time |
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| 142 | |
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| 143 | FUNCTION Get_cpu_time(no_timer) |
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| 144 | IMPLICIT NONE |
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| 145 | INTEGER :: no_timer |
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| 146 | DOUBLE PRECISION :: Get_cpu_time |
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| 147 | |
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| 148 | IF (timer_state(no_timer)==running) THEN |
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| 149 | CALL suspend_timer(no_timer) |
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| 150 | Get_cpu_time=cpu_timer(no_timer) |
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| 151 | CALL resume_timer(no_timer) |
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| 152 | ELSE |
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| 153 | Get_cpu_time=cpu_timer(no_timer) |
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| 154 | ENDIF |
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| 155 | |
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| 156 | END FUNCTION Get_cpu_time |
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| 157 | |
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| 158 | FUNCTION Get_real_time(no_timer) |
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| 159 | IMPLICIT NONE |
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| 160 | INTEGER :: no_timer |
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| 161 | DOUBLE PRECISION :: Get_real_time |
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| 162 | |
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| 163 | IF (timer_state(no_timer)==running) THEN |
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| 164 | CALL suspend_timer(no_timer) |
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| 165 | Get_real_time=real_timer(no_timer) |
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| 166 | CALL resume_timer(no_timer) |
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| 167 | ELSE |
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| 168 | Get_real_time=real_timer(no_timer) |
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| 169 | ENDIF |
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| 170 | |
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| 171 | END FUNCTION Get_real_time |
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| 172 | |
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| 173 | END MODULE Timer |
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| 174 | |
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