The ParaMonte Documentation Website
Current view: top level - kernel - SpecBase_ParallelizationModel_mod.f90 (source / functions) Hit Total Coverage
Test: ParaMonte 1.5.1 :: Coarray Parallel Kernel - Code Coverage Report Lines: 27 27 100.0 %
Date: 2021-01-08 12:59:07 Functions: 4 4 100.0 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
       2             : !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
       3             : !!!!
       4             : !!!!   MIT License
       5             : !!!!
       6             : !!!!   ParaMonte: plain powerful parallel Monte Carlo library.
       7             : !!!!
       8             : !!!!   Copyright (C) 2012-present, The Computational Data Science Lab
       9             : !!!!
      10             : !!!!   This file is part of the ParaMonte library.
      11             : !!!!
      12             : !!!!   Permission is hereby granted, free of charge, to any person obtaining a 
      13             : !!!!   copy of this software and associated documentation files (the "Software"), 
      14             : !!!!   to deal in the Software without restriction, including without limitation 
      15             : !!!!   the rights to use, copy, modify, merge, publish, distribute, sublicense, 
      16             : !!!!   and/or sell copies of the Software, and to permit persons to whom the 
      17             : !!!!   Software is furnished to do so, subject to the following conditions:
      18             : !!!!
      19             : !!!!   The above copyright notice and this permission notice shall be 
      20             : !!!!   included in all copies or substantial portions of the Software.
      21             : !!!!
      22             : !!!!   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
      23             : !!!!   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 
      24             : !!!!   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 
      25             : !!!!   IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 
      26             : !!!!   DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 
      27             : !!!!   OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE 
      28             : !!!!   OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
      29             : !!!!
      30             : !!!!   ACKNOWLEDGMENT
      31             : !!!!
      32             : !!!!   ParaMonte is an honor-ware and its currency is acknowledgment and citations.
      33             : !!!!   As per the ParaMonte library license agreement terms, if you use any parts of 
      34             : !!!!   this library for any purposes, kindly acknowledge the use of ParaMonte in your 
      35             : !!!!   work (education/research/industry/development/...) by citing the ParaMonte 
      36             : !!!!   library as described on this page:
      37             : !!!!
      38             : !!!!       https://github.com/cdslaborg/paramonte/blob/main/ACKNOWLEDGMENT.md
      39             : !!!!
      40             : !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
      41             : !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
      42             : 
      43             : !> \brief
      44             : !> This module contains the classes and procedures for setting up the `parallelizationModel` attribute of ParaMonte samplers.
      45             : !> For more information, see the description of this attribute in the body of the module.
      46             : !> \author Amir Shahmoradi
      47             : 
      48             : module SpecBase_ParallelizationModel_mod
      49             : 
      50             :     use Constants_mod, only: IK
      51             :     implicit none
      52             : 
      53             :     character(*), parameter         :: MODULE_NAME = "@SpecBase_ParallelizationModel_mod"
      54             : 
      55             :     integer(IK), parameter          :: MAX_LEN_PARALLELIZATION_MODEL = 63
      56             : 
      57             :     character(MAX_LEN_PARALLELIZATION_MODEL) :: parallelizationModel
      58             : 
      59             :     type                            :: ParallelizationModel_type
      60             :         logical                     :: isSinglChain
      61             :         logical                     :: isMultiChain
      62             :         logical                     :: isForkJoin
      63             :         character(10)               :: multiChain
      64             :         character(11)               :: singlChain
      65             :         character(:), allocatable   :: def
      66             :         character(:), allocatable   :: val
      67             :         character(:), allocatable   :: null
      68             :         character(:), allocatable   :: desc
      69             :     contains
      70             :         procedure, pass             :: set => setParallelizationModel, checkForSanity, nullifyNameListVar
      71             :     end type ParallelizationModel_type
      72             : 
      73             :     interface ParallelizationModel_type
      74             :         module procedure            :: constructParallelizationModel
      75             :     end interface ParallelizationModel_type
      76             : 
      77             :     private :: constructParallelizationModel, setParallelizationModel, checkForSanity, nullifyNameListVar
      78             : 
      79             : !%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
      80             : 
      81             : contains
      82             : 
      83             : !%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
      84             : 
      85        1047 :     function constructParallelizationModel(methodName) result(ParallelizationModelObj)
      86             : #if INTEL_COMPILER_ENABLED && defined DLL_ENABLED && (OS_IS_WINDOWS || defined OS_IS_DARWIN)
      87             :         !DEC$ ATTRIBUTES DLLEXPORT :: constructParallelizationModel
      88             : #endif
      89             :         use, intrinsic :: iso_fortran_env, only: output_unit
      90             :         use Constants_mod, only: NULL_SK, IK, PMSM
      91             :         use Decoration_mod, only: TAB
      92             :         use String_mod, only: num2str
      93             :         implicit none
      94             :         character(*), intent(in)        :: methodName
      95             :         type(ParallelizationModel_type) :: ParallelizationModelObj
      96             : 
      97        1047 :         ParallelizationModelObj%isSinglChain = .false.
      98        1047 :         ParallelizationModelObj%isMultiChain = .false.
      99        1047 :         ParallelizationModelObj%singlChain = "singleChain"
     100        1047 :         ParallelizationModelObj%multiChain = "multiChain"
     101        1047 :         ParallelizationModelObj%def = ParallelizationModelObj%singlChain
     102        1047 :         ParallelizationModelObj%null = repeat(NULL_SK, MAX_LEN_PARALLELIZATION_MODEL)
     103             : 
     104             :         ParallelizationModelObj%desc = &
     105             :         "parallelizationModel is a string variable that represents the parallelization method to be used in "// methodName //". &
     106        1047 :         &The string value must be enclosed by either single or double quotation marks when provided as input. "
     107        1047 :         if (methodName==PMSM%ParaDRAM .or. methodName==PMSM%ParaDISE) then
     108             :             ParallelizationModelObj%desc = ParallelizationModelObj%desc // &
     109             :             "Two options are currently supported:\n\n&
     110             :             &    parallelizationModel = '" // ParallelizationModelObj%multiChain // "'\n\n&
     111             :             &            This method uses the Prefect Parallelism scheme in which multiple MCMC chains are generated &
     112             :                         &independently of each other. In this case, multiple output MCMC chain files will also be generated.\n\n&
     113             :             &    parallelizationModel = '" // ParallelizationModelObj%singlChain // "'\n\n&
     114             :             &            This method uses the fork-style parallelization scheme. &
     115             :                         &A single MCMC chain file will be generated in this case. At each MCMC step multiple proposal steps &
     116             :                         &will be checked in parallel until one proposal is accepted.\n\n&
     117             :             &Note that in serial mode, there is no parallelism. Therefore, this option does not affect non-parallel simulations &
     118             :             &and its value is ignored. The serial mode is equivalent to either of the parallelism methods with only one simulation &
     119             :             &image (processor, core, or thread). &
     120             :             &The default value is parallelizationModel = '" // ParallelizationModelObj%def // "'. &
     121        1047 :             &Note that the input values are case-insensitive and white-space characters are ignored."
     122             :         ! LCOV_EXCL_START
     123             :         else
     124             :             block
     125             :                 use Err_mod, only: Err_type, abort
     126             :                 type(Err_type) :: Err
     127             :                 Err%occurred = .true.
     128             :                 Err%msg = MODULE_NAME//": Catastrophic internal error occurred. The simulation method name is not recognized."
     129             :                 call abort(Err)
     130             :                 error stop
     131             :             end block
     132             :         ! LCOV_EXCL_STOP
     133             :         end if
     134        1047 :     end function constructParallelizationModel
     135             : 
     136             : !%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
     137             : 
     138        1047 :     subroutine nullifyNameListVar(ParallelizationModelObj)
     139             : #if INTEL_COMPILER_ENABLED && defined DLL_ENABLED && (OS_IS_WINDOWS || defined OS_IS_DARWIN)
     140             :         !DEC$ ATTRIBUTES DLLEXPORT :: nullifyNameListVar
     141             : #endif
     142             :         implicit none
     143             :         class(ParallelizationModel_type), intent(in) :: ParallelizationModelObj
     144        1047 :         parallelizationModel = ParallelizationModelObj%null
     145        1047 :     end subroutine nullifyNameListVar
     146             : 
     147             : !%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
     148             : 
     149        1143 :     subroutine setParallelizationModel(ParallelizationModelObj,parallelizationModel)
     150             : #if INTEL_COMPILER_ENABLED && defined DLL_ENABLED && (OS_IS_WINDOWS || defined OS_IS_DARWIN)
     151             :         !DEC$ ATTRIBUTES DLLEXPORT :: setParallelizationModel
     152             : #endif
     153        1047 :         use String_mod, only: getLowerCase, replaceStr
     154             :         implicit none
     155             :         class(ParallelizationModel_type), intent(inout) :: ParallelizationModelObj
     156             :         character(*), intent(in)                        :: parallelizationModel
     157        1143 :         character(:), allocatable                       :: parallelizationModelLowerCase
     158        1143 :         ParallelizationModelObj%val = trim(adjustl(replaceStr(parallelizationModel," ", "")))
     159        1143 :         if (ParallelizationModelObj%val==trim(adjustl(ParallelizationModelObj%null))) ParallelizationModelObj%val = trim(adjustl(ParallelizationModelObj%def))
     160        1143 :         parallelizationModelLowerCase = getLowerCase(ParallelizationModelObj%val)
     161        1143 :         ParallelizationModelObj%isSinglChain = parallelizationModelLowerCase == getLowerCase(ParallelizationModelObj%singlChain)
     162        1143 :         ParallelizationModelObj%isMultiChain = parallelizationModelLowerCase == getLowerCase(ParallelizationModelObj%multiChain)
     163        1143 :     end subroutine setParallelizationModel
     164             : 
     165             : !%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
     166             : 
     167        1035 :     subroutine checkForSanity(ParallelizationModel,Err,methodName)
     168             : #if INTEL_COMPILER_ENABLED && defined DLL_ENABLED && (OS_IS_WINDOWS || defined OS_IS_DARWIN)
     169             :         !DEC$ ATTRIBUTES DLLEXPORT :: checkForSanity
     170             : #endif
     171        1143 :         use Err_mod, only: Err_type
     172             :         use String_mod, only: num2str
     173             :         implicit none
     174             :         class(ParallelizationModel_type), intent(in)    :: ParallelizationModel
     175             :         character(*), intent(in)                        :: methodName
     176             :         type(Err_type), intent(inout)                   :: Err
     177             :         character(*), parameter                         :: PROCEDURE_NAME = "@checkForSanity()"
     178        1035 :         if ( .not.(ParallelizationModel%isSinglChain .or. ParallelizationModel%isMultiChain) ) then
     179             :         ! LCOV_EXCL_START
     180             :             Err%occurred = .true.
     181             :             Err%msg =   Err%msg // &
     182             :                         MODULE_NAME // PROCEDURE_NAME // ": Error occurred. &
     183             :                         &The input requested parallelization method (" // ParallelizationModel%val // &
     184             :                         ") represented by variable parallelizationModel cannot be anything other than &
     185             :                         &'singleChain' or 'multiChain'. If you don't know an appropriate value &
     186             :                         &for ParallelizationModel, drop it from the input list. " // methodName // &
     187             :                         " will automatically assign an appropriate value to it.\n\n"
     188             :         end if
     189             :         ! LCOV_EXCL_STOP
     190        2070 :     end subroutine checkForSanity
     191             : 
     192             : !%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
     193             : 
     194             : end module SpecBase_ParallelizationModel_mod ! LCOV_EXCL_LINE

ParaMonte: Plain Powerful Parallel Monte Carlo Library 
The Computational Data Science Lab
© Copyright 2012 - 2021