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42 :
43 : !> \brief This module contains classes and procedures relevant to CPU-time timing.
44 : !> \author Amir Shahmoradi
45 :
46 : module TimerCPU_mod
47 :
48 : use Err_mod, only: Err_type
49 : use Constants_mod, only: RK
50 : implicit none
51 :
52 : ! Doxygen does not comprehend the following statements. Therefore, are commented out.
53 : !private
54 : !public :: MODULE_NAME, TimerCPU_type
55 :
56 : character(*), parameter :: MODULE_NAME = "@TimerCPU_mod"
57 :
58 : type :: Time_type
59 : real(RK) :: start !< The CPU start time.
60 : real(RK) :: stop !< The CPU stop time.
61 : real(RK) :: delta !< The CPU time spent since the last clock call in seconds.
62 : real(RK) :: total !< The total CPU time spent between start and stop in seconds.
63 : character(7) :: unit = "seconds" !< The time unit.
64 : end type Time_type
65 :
66 : !> The `TimerCPU_type` class, containing method for setting up a CPU-time timer.
67 : type :: TimerCPU_type
68 : type(Time_type) :: Time !< An object of type [Time_type](@ref time_type) containing information about the processor clock count.
69 : type(Err_type) :: Err !< An object of type [Err_type](@ref err_mod::err_type) containing error-handling information.
70 : contains
71 : procedure, pass :: tic => setTicCPU
72 : procedure, pass :: toc => setTocCPU
73 : end type TimerCPU_type
74 :
75 : interface TimerCPU_type
76 : module procedure :: constructTimerCPU
77 : end interface TimerCPU_type
78 :
79 : !%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
80 : !%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
81 :
82 : contains
83 :
84 : !%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
85 : !%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
86 :
87 : !> \brief
88 : !> This is the constructor of the class [TimerCPU_type](@ref timercpu_type).
89 : !> Before returning the object, this function also calls the [tic()](@ref setticcpu)
90 : !> method of the object of class [TimerCPU_type](@ref timercpu_type) to reset the timer.
91 : !>
92 : !> \return
93 : !> `Timer` : An object of class [TimerCPU_type](@ref timercpu_type).
94 : !>
95 : !> \warning
96 : !> Upon return, be sure to check the value of `TimerCPU_type%%Err%%occurred` for the occurrence of any potential error.
97 : !>
98 : !> \author
99 : !> Amir Shahmoradi, Sep 1, 2017, 12:00 AM, ICES, UT Austin
100 3 : function constructTimerCPU() result(TimerCPU)
101 : #if INTEL_COMPILER_ENABLED && defined DLL_ENABLED && (OS_IS_WINDOWS || defined OS_IS_DARWIN)
102 : !DEC$ ATTRIBUTES DLLEXPORT :: constructTimerCPU
103 : #endif
104 : use Constants_mod, only: RK
105 : implicit none
106 : type(TimerCPU_type) :: TimerCPU
107 : character(*), parameter :: PROCEDURE_NAME = "@constructTimerCPU()"
108 3 : TimerCPU%Err%occurred = .false.
109 3 : TimerCPU%Err%msg = ""
110 3 : call cpu_time( time=TimerCPU%Time%start )
111 3 : if ( TimerCPU%Time%start<0 ) then
112 : ! LCOV_EXCL_START
113 : TimerCPU%Err%occurred = .true.
114 : TimerCPU%Err%msg = PROCEDURE_NAME // ": There is no processor clock."
115 : return
116 : end if
117 : ! LCOV_EXCL_STOP
118 3 : call TimerCPU%tic()
119 3 : end function constructTimerCPU
120 :
121 : !%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
122 : !%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
123 :
124 : !> \brief
125 : !> This procedure is a method of the class [TimerCPU_type](@ref timercpu_type).
126 : !> Reset the timer object and return.
127 : !>
128 : !> \param[inout] TimerCPU : An object of class [TimerCPU_type](@ref timercpu_type) whose components are manipulated by this method.
129 : !>
130 : !> \author
131 : !> Amir Shahmoradi, Sep 1, 2017, 12:00 AM, ICES, UT Austin
132 3 : subroutine setTicCPU(TimerCPU)
133 : #if INTEL_COMPILER_ENABLED && defined DLL_ENABLED && (OS_IS_WINDOWS || defined OS_IS_DARWIN)
134 : !DEC$ ATTRIBUTES DLLEXPORT :: setTicCPU
135 : #endif
136 : implicit none
137 : class(TimerCPU_type), intent(inout) :: TimerCPU
138 3 : call cpu_time( time=TimerCPU%Time%start )
139 3 : TimerCPU%Time%delta = 0._RK
140 3 : TimerCPU%Time%total = 0._RK
141 3 : TimerCPU%Time%stop = TimerCPU%Time%start
142 3 : end subroutine setTicCPU
143 :
144 : !%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
145 : !%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
146 :
147 : !> \brief
148 : !> This procedure is a method of the class [TimerCPU_type](@ref timercpu_type).
149 : !> Mark the CPU timer and compute the CPU time spent since last [toc()](@ref settoccpu) method call and return.
150 : !>
151 : !> \param[inout] TimerCPU : An object of class [TimerCPU_type](@ref timercpu_type) whose components are manipulated by this method.
152 : !>
153 : !> \remark
154 : !> Specifically, this method will set/update the following components of the object of type `Timer_type`:
155 : !> + `TimerCPU%Timer%stop` : The current CPU time in seconds as inferred from the Fortran intrinsic procedure `cpu_time()`.
156 : !> + `TimerCPU%Timer%delta` : The total time in seconds since the last `toc()` call.
157 : !>
158 : !> \author
159 : !> Amir Shahmoradi, Sep 1, 2017, 12:00 AM, ICES, UT Austin
160 3 : subroutine setTocCPU(TimerCPU)
161 : #if INTEL_COMPILER_ENABLED && defined DLL_ENABLED && (OS_IS_WINDOWS || defined OS_IS_DARWIN)
162 : !DEC$ ATTRIBUTES DLLEXPORT :: setTocCPU
163 : #endif
164 3 : use Constants_mod, only: RK
165 : implicit none
166 : class(TimerCPU_type), intent(inout) :: TimerCPU
167 3 : real(RK) :: dummy
168 3 : call cpu_time( time=TimerCPU%Time%stop )
169 3 : dummy = TimerCPU%Time%stop - TimerCPU%Time%start
170 3 : TimerCPU%Time%delta = dummy - TimerCPU%Time%total
171 3 : TimerCPU%Time%total = dummy
172 3 : end subroutine setTocCPU
173 :
174 : !%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
175 : !%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
176 :
177 : end module TimerCPU_mod ! LCOV_EXCL_LINE
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