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42 :
43 : !> \brief
44 : !> This module contains the classes and procedures for setting up the `randomStartPointDomainUpperLimitVec` attribute of samplers of class [ParaMCMC_type](@ref paramcmc_mod::paramcmc_type).
45 : !> For more information, see the description of this attribute in the body of the module.
46 : !> \author Amir Shahmoradi
47 :
48 : module SpecMCMC_RandomStartPointDomainUpperLimitVec_mod
49 :
50 : use Constants_mod, only: RK
51 : implicit none
52 :
53 : character(*), parameter :: MODULE_NAME = "@SpecMCMC_RandomStartPointDomainUpperLimit_mod"
54 :
55 : real(RK), allocatable :: randomStartPointDomainUpperLimitVec(:) ! namelist input
56 :
57 : type :: RandomStartPointDomainUpperLimitVec_type
58 : real(RK), allocatable :: Val(:)
59 : real(RK) :: null
60 : character(:), allocatable :: desc
61 : contains
62 : procedure, pass :: set, checkForSanity, nullifyNameListVar
63 : end type RandomStartPointDomainUpperLimitVec_type
64 :
65 : interface RandomStartPointDomainUpperLimitVec_type
66 : module procedure :: construct
67 : end interface RandomStartPointDomainUpperLimitVec_type
68 :
69 : private :: construct, set, checkForSanity, nullifyNameListVar
70 :
71 : !%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
72 :
73 : contains
74 :
75 : !%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
76 :
77 349 : function construct(methodName) result(self)
78 : #if INTEL_COMPILER_ENABLED && defined DLL_ENABLED && (OS_IS_WINDOWS || defined OS_IS_DARWIN)
79 : !DEC$ ATTRIBUTES DLLEXPORT :: construct
80 : #endif
81 : use Constants_mod, only: NULL_RK
82 : use String_mod, only: num2str
83 : implicit none
84 : character(*), intent(in) :: methodName
85 : type(RandomStartPointDomainUpperLimitVec_type) :: self
86 349 : self%null = NULL_RK
87 : self%desc = &
88 : "randomStartPointDomainUpperLimitVec represents the upper boundaries of the cubical domain from which the starting point(s) of &
89 : &the MCMC chain(s) will be initialized randomly (only if requested via the input variable randomStartPointRequested. &
90 : &This happens only when some or all of the elements of the input variable StartPoint are missing. &
91 : &In such cases, every missing value of input StartPoint will be set to the center point between randomStartPointDomainUpperLimitVec &
92 : &and randomStartPointDomainLowerLimitVec in the corresponding dimension. &
93 : &If RandomStartPointRequested=TRUE (or True, true, t, all case-insensitive), then the missing &
94 : &elements of StartPoint will be initialized to values drawn randomly from within the corresponding ranges specified by &
95 : &the input variable randomStartPointDomainUpperLimitVec. &
96 : &As an input variable, randomStartPointDomainUpperLimitVec is an ndim-dimensional vector of 64-bit real numbers, &
97 : &where ndim is the number of variables of the objective function. It is also possible to assign only select values of &
98 : &randomStartPointDomainUpperLimitVec and leave the rest of the components to be assigned the default value. &
99 : &This is POSSIBLE ONLY when randomStartPointDomainUpperLimitVec is defined inside the input file to "//methodName//". &
100 : &For example, having the following inside the input file, \n\n&
101 : & randomStartPointDomainUpperLimitVec(3:5) = -100\n\n&
102 : & will only set the upper limits of the third, fourth, and the fifth dimensions to -100, or,\n\n&
103 : & randomStartPointDomainUpperLimitVec(1) = -100, randomStartPointDomainUpperLimitVec(2) = -1.e6 \n\n&
104 : & will set the upper limit on the first dimension to -100, and 1.e6 on the second dimension, or,\n\n&
105 : & randomStartPointDomainUpperLimitVec = 3*-2.5e100\n\n&
106 : & will only set the upper limits on the first, second, and the third dimensions to -2.5*10^100, while the rest of &
107 : &the upper limits for the missing dimensions will be automatically set to the default value.\n\n&
108 : &The default values for all elements of randomStartPointDomainUpperLimitVec are taken from the corresponding values in the input &
109 349 : &variable domainUpperLimitVec."
110 349 : end function construct
111 :
112 : !%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
113 :
114 349 : subroutine nullifyNameListVar(self,nd)
115 : #if INTEL_COMPILER_ENABLED && defined DLL_ENABLED && (OS_IS_WINDOWS || defined OS_IS_DARWIN)
116 : !DEC$ ATTRIBUTES DLLEXPORT :: nullifyNameListVar
117 : #endif
118 349 : use Constants_mod, only: IK
119 : implicit none
120 : class(RandomStartPointDomainUpperLimitVec_type), intent(in) :: self
121 : integer(IK), intent(in) :: nd
122 4 : if (allocated(randomStartPointDomainUpperLimitVec)) deallocate(randomStartPointDomainUpperLimitVec)
123 349 : allocate(randomStartPointDomainUpperLimitVec(nd))
124 851 : randomStartPointDomainUpperLimitVec(:) = self%null
125 349 : end subroutine nullifyNameListVar
126 :
127 : !%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
128 :
129 1392 : pure subroutine set(self,randomStartPointDomainUpperLimitVec)
130 : #if INTEL_COMPILER_ENABLED && defined DLL_ENABLED && (OS_IS_WINDOWS || defined OS_IS_DARWIN)
131 : !DEC$ ATTRIBUTES DLLEXPORT :: set
132 : #endif
133 349 : use SpecBase_mod, only: SpecBase_type
134 : use Constants_mod, only: IK, RK
135 : implicit none
136 : class(RandomStartPointDomainUpperLimitVec_type), intent(inout) :: self
137 : real(RK), intent(in), optional :: randomStartPointDomainUpperLimitVec(:)
138 1222 : if (present(randomStartPointDomainUpperLimitVec)) self%Val = randomStartPointDomainUpperLimitVec
139 696 : end subroutine set
140 :
141 : !%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
142 :
143 690 : subroutine checkForSanity(self, Err, methodName, SpecBase, randomStartPointRequested, randomStartPointDomainLowerLimitVec)
144 : #if INTEL_COMPILER_ENABLED && defined DLL_ENABLED && (OS_IS_WINDOWS || defined OS_IS_DARWIN)
145 : !DEC$ ATTRIBUTES DLLEXPORT :: checkForSanity
146 : #endif
147 696 : use SpecBase_mod, only: SpecBase_type
148 : use Constants_mod, only: RK
149 : use Err_mod, only: Err_type
150 : use String_mod, only: num2str
151 : implicit none
152 : class(RandomStartPointDomainUpperLimitVec_type), intent(inout) :: self
153 : type(Err_type), intent(inout) :: Err
154 : type(SpecBase_type), intent(in) :: SpecBase
155 : character(*), intent(in) :: methodName
156 : logical, intent(in) :: randomStartPointRequested
157 : real(RK), intent(in) :: randomStartPointDomainLowerLimitVec(:)
158 : character(*), parameter :: PROCEDURE_NAME = "@checkForSanity()"
159 : integer :: i
160 843 : do i = 1,size(self%Val(:))
161 :
162 498 : if (self%Val(i)==self%null) self%Val(i) = SpecBase%DomainUpperLimitVec%Val(i)
163 :
164 : ! check if the domain is set when random start point is requested
165 :
166 498 : if ( randomStartPointRequested .and. self%Val(i)==SpecBase%DomainUpperLimitVec%def ) then
167 4 : Err%occurred = .true.
168 : Err%msg = Err%msg // &
169 : MODULE_NAME // PROCEDURE_NAME // ": Error occurred. &
170 : &You have requested a random start point by setting randomStartPointRequested to TRUE while the &
171 : &element #"//num2str(i)//" of RandomStartPointDomainLowerLimitVec has not been preset to a finite value. &
172 4 : &This information is essential otherwise, how could the sampler draw points randomly from within an unspecified domain?\n\n"
173 : end if
174 :
175 : ! the upper boundary of the domain of random-start-point must be smaller than the upper boundary of the target's domain.
176 :
177 498 : if ( self%Val(i)>SpecBase%DomainUpperLimitVec%Val(i) ) then
178 2 : Err%occurred = .true.
179 : Err%msg = Err%msg // &
180 : MODULE_NAME // PROCEDURE_NAME // ": Error occurred. The component " // num2str(i) // &
181 4 : " of the variable randomStartPointDomainUpperLimitVec (" // num2str(self%Val(i)) // ") cannot be " // &
182 : "larger than the corresponding component of the variable domainUpperLimitVec (" // &
183 : num2str(SpecBase%DomainUpperLimitVec%Val(i)) // "). If you don't know an appropriate " // & ! LCOV_EXCL_LINE
184 : "value to set for randomStartPointDomainUpperLimitVec, drop it from the input list. " // &
185 2 : methodName // " will automatically assign an appropriate value to it.\n\n"
186 : end if
187 :
188 : ! the upper boundary of the domain of random-start-point must be smaller than the corresponding lower boundary.
189 :
190 843 : if ( self%Val(i)<=randomStartPointDomainLowerLimitVec(i) ) then
191 8 : Err%occurred = .true.
192 : Err%msg = Err%msg // &
193 : PROCEDURE_NAME // ": Error occurred. The input upper limit value in the component " // num2str(i) // &
194 : " of the variable randomStartPointDomainUpperLimitVec cannot be smaller than or equal to the corresponding input &
195 : &lower limit value in randomStartPointDomainLowerLimitVec:\n" // &
196 8 : " randomStartPointDomainLowerLimitVec(" // num2str(i) // ") = " // num2str(randomStartPointDomainLowerLimitVec(i)) // "\n" // &
197 16 : " randomStartPointDomainUpperLimitVec(" // num2str(i) // ") = " // num2str(self%Val(i)) // "\n\n"
198 : end if
199 :
200 : end do
201 345 : deallocate(randomStartPointDomainUpperLimitVec)
202 690 : end subroutine checkForSanity
203 :
204 : !%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
205 :
206 : end module SpecMCMC_RandomStartPointDomainUpperLimitVec_mod ! LCOV_EXCL_LINE
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