! Copyright (c) 2011-2014 Simon Zimny <s.zimny@grs-sim.de> ! Copyright (c) 2012-2013 Manuel Hasert <m.hasert@grs-sim.de> ! Copyright (c) 2012-2013, 2015-2018 Kannan Masilamani <kannan.masilamani@uni-siegen.de> ! Copyright (c) 2012 Harald Klimach <harald.klimach@uni-siegen.de> ! Copyright (c) 2012-2013 Kartik Jain <kartik.jain@uni-siegen.de> ! Copyright (c) 2014-2016 Jiaxing Qi <jiaxing.qi@uni-siegen.de> ! Copyright (c) 2016 Tobias Schneider <tobias1.schneider@student.uni-siegen.de> ! Copyright (c) 2016 Peter Vitt <peter.vitt2@uni-siegen.de> ! Copyright (c) 2017 Sindhuja Budaraju <nagasai.budaraju@student.uni-siegen.de> ! Copyright (c) 2018 Raphael Haupt <raphael.haupt@uni-siegen.de> ! ! Redistribution and use in source and binary forms, with or without ! modification, are permitted provided that the following conditions are met: ! ! 1. Redistributions of source code must retain the above copyright notice, ! this list of conditions and the following disclaimer. ! ! 2. Redistributions in binary form must reproduce the above copyright notice, ! this list of conditions and the following disclaimer in the documentation ! and/or other materials provided with the distribution. ! ! THIS SOFTWARE IS PROVIDED BY THE UNIVERSITY OF SIEGEN “AS IS” AND ANY EXPRESS ! OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES ! OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. ! IN NO EVENT SHALL UNIVERSITY OF SIEGEN OR CONTRIBUTORS BE LIABLE FOR ANY ! DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES ! (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; ! LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ! ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ! (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS ! SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ! ***************************************************************************** ! !> author: Simon Zimny !! scheme_layout module, providing the scheme_layout datatype and the !! functionality to read the lua files and to set the predefined stencils. !! !! !! # Scheme Layout !! !! The layout includes all information about the stencil, the inverse !! directions, the prevailing directions and the weights. !! !! In MUSUBI one can choose among the following predefined layouts: !! !! - 'predefined_d3q19': !! The D3Q19 model. The advection relaxation kernel for this model is highly !! optimized. !! - 'predefined_d3q7': !! The more simple D3Q7 model. The advection relaxation kernel for this !! model is highly optimized. !! - 'Flekkoy': !! The Flekkoy model consists of a D3Q6 stencil and is used for passive !! scalar transport. !! !! In MUSUBI it is also possible to define a new layout in the lua file. This !! feature is implemented to test new layouts. In case one wants to run !! multiple simulations using this layout, it is highly recommended to !! implement a new kernel (the following files have to be extended: !! [[mus_flow_module]] and related modules in source/compute. !! !! Defining a new Layout !! To define a new layout one has to set `layout = 'new_stencil'`. To define the !! stencil the following information has to be provided: !! !! - the number of offsets (QQ) !! - the offsets (disc_vel) !! - the weights (weight) !! - the inverse directions (inv_dir) as integers pointing on the belonging !! offsets !! - the prevailing directions (prev_dir) as reals giving the distance in the !! different directions !! !! The following example shows how to define the standard D3Q19 as a new !! layout: !! !!```lua !! -- Scheme !! scheme = { !! label = 'test', !! layout = 'new_stencil', !! -- Initial condition !! initial_condition = { !! density = 1.0, !! velocityX = 0.0, !! velocityY = 0.0, !! velocityZ = 0.0 }, !! -- Boundary conditions !! boundary_condition = { !! { label = 'wall', !! kind = 'velocity_bounceback', !! velocityX = 0.03, velocityY = 0.0, velocityZ = 0.0 }, !! { label = 'wall', !! kind = 'wall', !! velocityX = 0.0, velocityY = 0.0, velocityZ = 0.0 } !! }, !! fluid = { relaxation_scheme = 'BGK', !! omega = 1.8, !! rho0 = 1.0 }, !! -- Defining the new Stencil !! stencil = { !! QQ = 19, !! disc_vel = { !! {-1,0,0},{0,-1,0},{0,0,-1},{1,0,0},{0,1,0},{0,0,1},{0,-1,-1},{0,-1,1},{0,1,-1}, !! {0,1,1},{-1,0,-1},{1,0,-1},{-1,0,1},{1,0,1},{-1,-1,0},{-1,1,0},{1,-1,0},{1,1,0}, !! {0,0,0} !! }, !! weight = { !! (1.0/18.0),(1.0/18.0),(1.0/18.0),(1.0/18.0),(1.0/18.0),(1.0/18.0),(1.0/36.0),(1.0/36.0),(1.0/36.0), !! (1.0/36.0),(1.0/36.0),(1.0/36.0),(1.0/36.0),(1.0/36.0),(1.0/36.0),(1.0/36.0),(1.0/36.0),(1.0/36.0), !! (1.0/3.0) !! }, !! inv_dir = { !! 4, 5, 6, 1, 2, 3, 10, 9, 8, !! 7, 14, 13, 12, 11, 18, 17, 16, 15, !! 19 !! }, !! prev_dir = { !! {1.,0.,0.},{0.,1.,0.},{0.,0.,1.},{1.,0.,0.},{0.,1.,0.},{0.,0.,1.}, !! {0.,0.5*math.sqrt(2.),0.5*math.sqrt(2.)},{0.,0.5*math.sqrt(2.),0.5*math.sqrt(2.)}, !! {0.,0.5*math.sqrt(2.),0.5*math.sqrt(2.)},{0.,0.5*math.sqrt(2.),0.5*math.sqrt(2.)}, !! {0.5*math.sqrt(2.),0.,0.5*math.sqrt(2.)},{0.5*math.sqrt(2.),0.,0.5*math.sqrt(2.)}, !! {0.5*math.sqrt(2.),0.,0.5*math.sqrt(2.)},{0.5*math.sqrt(2.),0.,0.5*math.sqrt(2.)}, !! {0.5*math.sqrt(2.),0.5*math.sqrt(2.),0.},{0.5*math.sqrt(2.),0.5*math.sqrt(2.),0.}, !! {0.5*math.sqrt(2.),0.5*math.sqrt(2.),0.},{0.5*math.sqrt(2.),0.5*math.sqrt(2.),0.} !! } !! } !! } !!``` !! module mus_scheme_layout_module ! include treelm modules use mpi use env_module, only: rk, long_k, labelLen use tem_aux_module, only: tem_abort use tem_stencil_module, only: tem_stencilHeader_type, tem_loadStencil, & & tem_identify_inverseDirections, & & tem_identify_prevailDirections, & & tem_stencil_zeroPos, & & tem_create_stencil, & & grw_stencilHeaderArray_type, init, & & destroy, truncate use tem_logging_module, only: logUnit use tem_param_module, only: div1_3, div1_18, div1_36, div1_54, div1_216,& & div2_27, div8_27, div1_4, div1_8, div1_6, & & div2_3, div1_9, div4_9, div1_24, div1_2 use tem_dyn_array_module, only: dyn_labelArray_type, init, append, destroy use tem_grow_array_module, only: grw_intArray_type, init, append, destroy, & & truncate, grw_longArray_type use tem_comm_env_module, only: tem_comm_env_type use tem_tools_module, only: tem_horizontalSpacer ! include aotus modules use aotus_module, only: flu_state, aot_get_val use aot_table_module, only: aot_table_open, aot_table_close, aot_table_length use aot_out_module, only: aot_out_type, aot_out_val ! include musubi modules use mus_moments_type_module, only: mus_moment_type implicit none private public :: mus_scheme_layout_type public :: mus_load_newLayout public :: mus_init_layout public :: mus_finalize_layout public :: mus_destroy_stencil public :: mus_define_layout public :: mus_define_d3q19 public :: mus_define_d3q27 public :: mus_define_d3q7 public :: mus_define_d3q6 public :: mus_define_d2q9 public :: mus_define_d1q3 public :: mus_weights_out public :: mus_set_weights_d1q3 public :: mus_set_weights_d2q9 public :: mus_set_weights_d3q6 public :: mus_set_weights_d3q7 public :: mus_set_weights_d3q19 public :: mus_set_weights_d3q27 !> data structure containing all information related to the !! compute stencil. Several stencils can be defined. !! [[mus_moments_module]] Moments are directly related to the !! stencil layout and are therefore defined here type mus_scheme_layout_type !> fluid stencil same as stencil(1) type( tem_stencilHeader_type ) :: fStencil !> number of stencils used in this scheme integer :: nStencils !> Temporary growing array of stencil !! It is copied to stencil(:) and destroyed, where this is destroyed? type(grw_stencilHeaderArray_type) :: grwStencil !> The list of stencil types, the stencils for the individual schemes !! is ordered as follows: !! -------------------------------------------------------------------------------------- !! | flSt | bcSt1_field1 ... bcStN_field1 ... bcSt1_fieldM ... bcStN_fieldM | addSt ... | !! -------------------------------------------------------------------------------------- !! Unique stencil label for boundary stencils are created with boundary label !! and stencil%cxDir therefore each stencil is limited to one boundary type type( tem_stencilHeader_type ), allocatable :: stencil(:) !> dynamic array of labels created from stencil directions to create unique !! growing array of grwStencil type(dyn_labelArray_type) :: stencil_labels !> position of fluid stencil in grwStencil integer :: fStencil_pos !> The weights for the different discrete velocities real(kind=rk), allocatable :: weight(:) !> Lattice speed of sound for fStencil !! $\sum_i (weight_i*cx_i*cx_i) = c_s^2 I real(kind=rk) :: cs !> Prevailing directions real(kind=rk), allocatable :: prevailDir(:,:) !> Moment space definition type(mus_moment_type) :: moment !> New stencil definition loaded from config logical :: new_stencil = .false. end type mus_scheme_layout_type contains ! ****************************************************************************** ! !> load a new stencil definition from the lua file !! !! - a label !! - the stencil (predefined or new) !! - for a new defined stencil ( weights, inverse directions, prevailing !! directions ) !! subroutine mus_load_newLayout( me, parent_handle, conf ) ! --------------------------------------------------------------------------- integer, intent(in), optional :: parent_handle type(mus_scheme_layout_type) :: me type(flu_State) :: conf ! --------------------------------------------------------------------------- ! defining local variables integer :: stencil_handle integer :: weight_handle integer :: nWeights, iWeight integer :: invDir_handle integer :: iInvDir, nInvDirs integer :: prevDir_handle integer :: iPrevDir, nPrevDirs integer :: prevDirCoo_handle integer :: iPrevDirCoo integer :: iError ! --------------------------------------------------------------------------- if( present( parent_handle))then ! open stencil table call aot_table_open( L = conf, & & parent = parent_handle, & & thandle = stencil_handle, & & key = 'stencil' ) else ! open stencil table call aot_table_open( L=conf, thandle=stencil_handle, key = 'stencil' ) end if ! If a new stencil is defined, the flag is set to true to ! differentiate between predefined and new stencil in initialization if (stencil_handle > 0) then me%new_stencil = .true. write(logUnit(1),*)'Reading the new Layout...' me%fStencil%label = 'new_stencil' ! Get the number of dimensions in which the stencil is defined call aot_get_val( L = conf, & & thandle = stencil_handle, & & val = me%fStencil%nDims, & & ErrCode = iError, & & key = 'nDims', & & default = -1 ) ! load the stencil call tem_loadStencil( stencil = me%fStencil, & & parent_handle = stencil_handle, & & conf = conf ) ! load additional information like weights, inv. directions, etc. call aot_table_open( L = conf, & & parent = stencil_handle, & & thandle = weight_handle, & & key = 'weight' ) nWeights = aot_table_length( L = conf, thandle = weight_handle ) if ( nWeights == me%fStencil%QQ ) then allocate( me%weight( nWeights )) do iWeight = 1, nWeights call aot_get_val( L = conf, & & thandle = weight_handle, & & val = me%weight( iWeight ), & & ErrCode = iError, & & pos = iWeight ) end do call aot_table_close( L=conf, thandle=weight_handle ) else write(logUnit(1),*) 'The number of defined weights does not '// & & 'match the number of discrete velocities.' write(logUnit(1),*) nWeights, ' vs. ', me%fStencil%QQ call tem_abort() end if call aot_table_open( L = conf, & & parent = stencil_handle, & & thandle = invDir_handle, & & key = 'inv_dir' ) nInvDirs = aot_table_length( L = conf, thandle = invDir_handle ) if ( nInvDirs == me%fStencil%QQ ) then allocate( me%fStencil%cxDirInv( nInvDirs )) do iInvDir = 1, nInvDirs call aot_get_val( L = conf, & & thandle = invDir_handle, & & val = me%fStencil%cxDirInv( iInvDir ), & & ErrCode = iError, & & pos = iInvDir ) end do call aot_table_close( L = conf, thandle = invDir_handle ) else call tem_identify_inverseDirections( me%fStencil%cxDirInv, & & me%fStencil%cxDir ) end if call aot_table_open( L = conf, & & parent = stencil_handle, & & thandle = prevDir_handle, & & key = 'prev_dir' ) nPrevDirs = aot_table_length( L = conf, thandle = prevDir_handle ) if(nPrevDirs > 0)then allocate( me%prevailDir( 3, nPrevDirs )) do iPrevDir = 1, nPrevDirs call aot_table_open( L = conf, & & parent = prevDir_handle, & & thandle = prevDirCoo_handle, & & pos = iPrevDir ) do iPrevDirCoo = 1, 3 call aot_get_val( L = conf, & & thandle = prevDirCoo_handle, & & val = me%prevailDir( iPrevDirCoo, iPrevDir ),& & ErrCode = iError, & & pos = iPrevDirCoo ) end do call aot_table_close( L = conf, thandle = prevDirCoo_handle ) end do call aot_table_close( L=conf, thandle=prevDir_handle ) else call tem_identify_prevailDirections( me%prevailDir, & & me%fStencil%cxDir ) end if me%fStencil%restPosition = tem_stencil_zeroPos( me%fStencil ) write(logUnit(1),*) 'A new stencil has been defined successfully.' if( me%fStencil%nDims <= 0 ) then write(logUnit(1),*)'Error: number of dimensions is not given for '// & & 'the stencil' write(logUnit(1),*)'Please define in the configuration file as ' write(logUnit(1),*)' stencil = { nDims = 3, weights = ... }' call tem_abort end if end if end subroutine mus_load_newLayout ! ****************************************************************************** ! ! ****************************************************************************** ! !> Dump the weights in lua format. !! !! The style is: !! `weights = {w1, w2, ... , wN}` !! subroutine mus_weights_out( me, conf ) ! --------------------------------------------------------------------------- !> weights real(kind=rk), intent(in) :: me(:) type(aot_out_type) :: conf ! --------------------------------------------------------------------------- call aot_out_val( put_conf = conf, & & vname = 'weight', & & val = me, & & max_per_line = 2 ) end subroutine mus_weights_out ! ****************************************************************************** ! ! ****************************************************************************** ! !> Initialize growing array of stencils !! subroutine mus_init_layout( layout ) ! --------------------------------------------------------------------------- !> musubi schemes layout type type( mus_scheme_layout_type ), intent(inout) :: layout ! --------------------------------------------------------------------------- write(logUnit(1),*) 'Initializing stencil array: ' ! Init is explicitly called here to clear the eventuellay used arrays call init( me = layout%grwStencil ) call init( me = layout%stencil_labels) end subroutine mus_init_layout ! ****************************************************************************** ! ! ****************************************************************************** ! !> This routine finialize grwStencil by truncating stencil elem arrays and !! set stencil%nElems subroutine mus_finalize_layout( layout, nElemsInTree, minLevel, maxLevel, proc ) ! --------------------------------------------------------------------------- !> scheme layout type( mus_scheme_layout_type ), intent(inout) :: layout !> fluid tree from mesh integer, intent(in) :: nElemsInTree !> min and max level integer, intent(in) :: minLevel, maxLevel !> mpi communication type type(tem_comm_env_type), intent(in) :: proc ! --------------------------------------------------------------------------- integer :: iStencil, iLevel, iProc integer, allocatable :: nElems_totalStencil(:) integer :: nStencils_all(proc%comm_size), nStencils_total integer :: offset(proc%comm_size) integer :: iErr, charType, stencilPos logical :: wasAdded type(dyn_labelArray_type) :: stencil_labels type(grw_longArray_type) :: nElems character(len=labelLen), allocatable :: stencil_labels_total(:) ! --------------------------------------------------------------------------- ! truncate stencil array call truncate( me = layout%grwStencil ) write(logUnit(5),'(a)') ' Finalizing stencils...' allocate( layout%stencil(layout%grwStencil%nVals) ) layout%nStencils = layout%grwStencil%nVals ! copy stencil from growing array to allocatable array layout%stencil(:) = layout%grwStencil%val(1:layout%nStencils) ! update fluid stencil layout%fStencil = layout%stencil(1) ! detroy growing array call destroy( me = layout%grwStencil ) do iStencil = 1, layout%nStencils ! if stencil use all = .true. use all elements in tree ! else use stencil elements if ( layout%stencil(iStencil)%useAll ) then layout%stencil(iStencil)%nElems = nElemsInTree else call truncate( me = layout%stencil(iStencil)%elem ) layout%stencil(iStencil)%nElems = layout%stencil(iStencil)%elem%nVals do iLevel = minLevel, maxLevel call truncate( me = layout%stencil(iStencil)%elemLvl(iLevel) ) end do end if end do ! gather number of stencils across process call MPI_GATHER( layout%nStencils, 1, MPI_INTEGER, nStencils_all, 1, & & MPI_INTEGER, proc%root, proc%comm, iErr ) if (proc%rank == proc%root) then ! total number of stencils nStencils_total = sum(nStencils_all) ! number of elements in each stencil in each process allocate( nElems_totalStencil(nStencils_total) ) ! stencil labels allocate( stencil_labels_total(nStencils_total) ) ! displacement to gather nElems vector offset(1) = 0 do iProc = 2, proc%comm_size offset(iProc) = offset(iProc-1) + nStencils_all(iProc-1) end do else allocate( nElems_totalStencil(0) ) allocate( stencil_labels_total(0) ) end if ! gather number of elements per stencil on each process call MPI_GATHERV( layout%stencil(:)%nElems, layout%nStencils, MPI_INTEGER, & & nElems_totalStencil, nStencils_all, offset, MPI_INTEGER, proc%root, & & proc%comm, iErr ) ! cast character array type to gather stencil labels call MPI_TYPE_CONTIGUOUS( labelLen, MPI_CHARACTER, charType, iErr ) call MPI_TYPE_COMMIT( charType, iErr ) ! gather stencil label to create unique stencil list call MPI_GATHERV( layout%stencil_labels%val(:), layout%nStencils, charType,& & stencil_labels_total, nStencils_all, offset, charType, proc%root, & & proc%comm, iErr ) if (proc%rank == proc%root) then ! create unique stencil labels and reduce nElems on each stencil do iProc = 1, proc%comm_size do iStencil = 1, nStencils_all(iProc) call append( me = stencil_labels, & & val = stencil_labels_total(offset(iProc)+iStencil),& & pos = stencilPos, & & wasAdded = wasAdded ) if (wasAdded) then call append( me = nElems, & & val = int(nElems_totalStencil(offset(iProc)+iStencil),& & kind=long_k) ) else nElems%val(stencilPos) = nElems%val(stencilPos) + & & int(nElems_totalStencil(offset(iProc)+iStencil), kind=long_k) end if end do end do write(logUnit(5),'(a,i0)') ' Total Number of stencils: ', stencil_labels%nVals do iStencil = 1, stencil_labels%nVals write(logUnit(5),'(a,i2,2a)') ' iStencil: ', iStencil, & & ', label: ', trim(stencil_labels%val(iStencil)) write(logUnit(5),'(a,i0)') ' nElems: ', nElems%val(iStencil) end do call destroy(stencil_labels) call destroy(nElems) end if end subroutine mus_finalize_layout ! ****************************************************************************** ! ! ****************************************************************************** ! !> Destroy the stencil !! subroutine mus_destroy_stencil( stencil ) ! --------------------------------------------------------------------------- !>musubi schemes stencil type type( tem_stencilHeader_type ), allocatable, intent(out) :: stencil(:) ! --------------------------------------------------------------------------- write(logUnit(5),*)'Deallocating stencil layout...' if( allocated(stencil) ) deallocate( stencil ) end subroutine mus_destroy_stencil ! ****************************************************************************** ! ! **************************************************************************** ! !> This routine defines layout for predefined stencils subroutine mus_define_layout( layout, stencilName, nElems ) ! ------------------------------------------------------------------------ ! !> scheme layout for pdf state type( mus_scheme_layout_type ), intent(inout) :: layout !> Name of the stencil to create character(len=*), intent(in) :: stencilName !> number of elements use this layout integer, intent(in) :: nElems ! ------------------------------------------------------------------------ ! ! create fStencil select case ( trim( stencilName ) ) case ( 'd2q9' ) call mus_define_d2q9( layout = layout, & & nElems = nElems ) case ( 'd2q5' ) call mus_define_d2q5( layout = layout, & & nElems = nElems ) case ( 'd3q19' ) call mus_define_d3q19( layout = layout, & & nElems = nElems ) case ( 'd3q13' ) call mus_define_d3q13( layout = layout, & & nElems = nElems ) case ( 'd3q27' ) call mus_define_d3q27( layout = layout, & & nElems = nElems ) case ( 'd3q7' ) call mus_define_d3q7( layout = layout, & & nElems = nElems ) case ( 'd3q6', 'flekkoy' ) call mus_define_d3q6( layout = layout, & & nElems = nElems ) case ( 'd1q3' ) call mus_define_d1q3( layout = layout, & & nElems = nElems ) case default call tem_horizontalSpacer(fUnit = logUnit(1)) write(logUnit(1),*) 'The chosen scheme layout is not available. ' write(logUnit(1),*) 'STOPPING!' write(logUnit(1),*) 'Choose one of: ' write(logUnit(1),*) ' - d2q9 ' write(logUnit(1),*) ' - d2q5 ' write(logUnit(1),*) ' - d3q13 ' write(logUnit(1),*) ' - d3q19 ' write(logUnit(1),*) ' - d3q27 ' write(logUnit(1),*) ' - d3q7 ' write(logUnit(1),*) ' - d3q6 ' write(logUnit(1),*) ' - d1q3 ' call tem_abort() end select ! if ( .not. allocated( layout%weight ) & ! & allocate( layout%weight( layout%fStencil%QQ ) ) end subroutine mus_define_layout ! **************************************************************************** ! ! ****************************************************************************** ! !> This subroutine sets the parameters for the predefined d3q13 stencil. !! subroutine mus_define_d3q13( layout, nElems ) ! --------------------------------------------------------------------------- !> scheme layout for pdf state type( mus_scheme_layout_type ), intent(inout) :: layout !> number of elements use this layout integer, intent(in) :: nElems ! --------------------------------------------------------------------------- ! fill the tem_stencilHeader_type call tem_create_stencil( layout%fStencil, 'd3q13' ) ! setting the prevailing directions (normalized major directions without ! sign) call tem_identify_prevailDirections( layout%prevailDir, & & layout%fStencil%cxDir ) if ( .not. allocated(layout%weight) ) & & allocate( layout%weight( layout%fStencil%QQ )) call mus_set_weights_d3q13( layout%weight ) layout%fStencil%useAll = .true. layout%fStencil%nElems = nElems layout%fStencil%restPosition = tem_stencil_zeroPos( layout%fStencil ) ! speed of sound layout%cs = mus_calculate_speed_of_sound( layout ) end subroutine mus_define_d3q13 ! ****************************************************************************** ! ! ****************************************************************************** ! subroutine mus_set_weights_d3q13( weights ) real( kind=rk ) :: weights(13) weights(1:12) = div1_24 weights(13) = div1_2 end subroutine mus_set_weights_d3q13 ! ****************************************************************************** ! ! ****************************************************************************** ! !> This subroutine sets the parameters for the predefined d3q19 stencil. !! subroutine mus_define_d3q19( layout, nElems ) ! --------------------------------------------------------------------------- !> scheme layout for pdf state type( mus_scheme_layout_type ), intent(inout) :: layout !> number of elements use this layout integer, intent(in) :: nElems ! --------------------------------------------------------------------------- ! fill the tem_stencilHeader_type call tem_create_stencil( layout%fStencil, 'd3q19' ) ! setting the prevailing directions (normalized major directions without ! sign) call tem_identify_prevailDirections( layout%prevailDir, & & layout%fStencil%cxDir ) if ( .not. allocated(layout%weight) ) & & allocate( layout%weight( layout%fStencil%QQ )) call mus_set_weights_d3q19( layout%weight ) layout%fStencil%useAll = .true. layout%fStencil%nElems = nElems layout%fStencil%restPosition = tem_stencil_zeroPos( layout%fStencil ) ! speed of sound layout%cs = mus_calculate_speed_of_sound( layout ) end subroutine mus_define_d3q19 ! ****************************************************************************** ! ! ****************************************************************************** ! subroutine mus_set_weights_d3q19( weights ) real( kind=rk ) :: weights(19) weights(1:6 ) = div1_18 weights(7:18) = div1_36 weights(19) = div1_3 end subroutine mus_set_weights_d3q19 ! ****************************************************************************** ! ! ****************************************************************************** ! !> This subroutine sets the parameters for the predefined d3q27 stencil. !! subroutine mus_define_d3q27( layout, nElems ) ! --------------------------------------------------------------------------- !> scheme layout for pdf state type( mus_scheme_layout_type ), intent(inout) :: layout !> number of elements use this layout integer, intent(in) :: nElems ! --------------------------------------------------------------------------- ! fill the tem_stencilHeader_type call tem_create_stencil( layout%fStencil, 'd3q27' ) ! setting the prevailing directions (normalized major directions without ! sign) call tem_identify_prevailDirections( layout%prevailDir, & & layout%fStencil%cxDir ) if ( .not. allocated(layout%weight) ) & & allocate( layout%weight( layout%fStencil%QQ )) call mus_set_weights_d3q27( layout%weight ) layout%fStencil%useAll = .true. layout%fStencil%nElems = nElems layout%fStencil%restPosition = tem_stencil_zeroPos( layout%fStencil ) ! speed of sound layout%cs = mus_calculate_speed_of_sound( layout ) end subroutine mus_define_d3q27 ! ****************************************************************************** ! subroutine mus_set_weights_d3q27( weights ) real( kind=rk ) :: weights(27) weights( 1: 6) = div2_27 weights( 7:18) = div1_54 weights(19:26) = div1_216 weights(27) = div8_27 end subroutine mus_set_weights_d3q27 ! ****************************************************************************** ! !> This subroutine sets the parameters for the predefined d3q7 stencil. !! subroutine mus_define_d3q7( layout, nElems ) ! --------------------------------------------------------------------------- !> scheme layout for pdf state type( mus_scheme_layout_type ), intent(inout) :: layout !> number of elements use this layout integer, intent(in) :: nElems ! --------------------------------------------------------------------------- ! fill the tem_stencilHeader_type call tem_create_stencil( layout%fStencil, 'd3q7' ) ! setting the prevailing directions (normalized major directions without ! sign) call tem_identify_prevailDirections( layout%prevailDir, & & layout%fStencil%cxDir ) allocate( layout%weight( layout%fStencil%QQ )) call mus_set_weights_d3q7( layout%weight ) layout%fStencil%useAll = .true. layout%fStencil%nElems = nElems layout%fStencil%restPosition = tem_stencil_zeroPos( layout%fStencil ) ! speed of sound layout%cs = mus_calculate_speed_of_sound( layout ) end subroutine mus_define_d3q7 ! ****************************************************************************** ! subroutine mus_set_weights_d3q7( weights ) real( kind=rk ) :: weights(7) weights(1:6) = div1_8 weights(7) = div1_4 end subroutine mus_set_weights_d3q7 ! ****************************************************************************** ! !> This subroutine sets the parameters for the predefined d3q6 !! layout%fStencil, used by the Flekkoy model of passive scalar transport. !! subroutine mus_define_d3q6( layout, nElems ) ! --------------------------------------------------------------------------- !> scheme layout for pdf state type( mus_scheme_layout_type ), intent(inout) :: layout !> number of elements use this layout integer, intent(in) :: nElems ! --------------------------------------------------------------------------- ! fill the tem_stencilHeader_type call tem_create_stencil( layout%fStencil, 'd3q6' ) ! setting the prevailing directions (normalized major directions without ! sign) call tem_identify_prevailDirections( layout%prevailDir, & & layout%fStencil%cxDir ) allocate( layout%weight(layout%fStencil%QQ) ) call mus_set_weights_d3q6( layout%weight ) layout%fStencil%useAll = .true. layout%fStencil%nElems = nElems layout%fStencil%restPosition = tem_stencil_zeroPos( layout%fStencil ) ! speed of sound layout%cs = mus_calculate_speed_of_sound( layout ) end subroutine mus_define_d3q6 ! ****************************************************************************** ! subroutine mus_set_weights_d3q6( weights ) real( kind=rk ) :: weights(6) weights(1:6) = div1_6 end subroutine mus_set_weights_d3q6 ! ****************************************************************************** ! !> This subroutine sets the parameters for the predefined d2q9 stencil. !! subroutine mus_define_d2q9( layout, nElems ) ! --------------------------------------------------------------------------- !> scheme layout for pdf state type( mus_scheme_layout_type ), intent(inout) :: layout !> number of elements use this layout integer, intent(in) :: nElems ! --------------------------------------------------------------------------- ! fill the tem_stencilHeader_type call tem_create_stencil( layout%fStencil, 'd2q9' ) ! setting the prevailing directions (normalized major directions without ! sign) call tem_identify_prevailDirections( layout%prevailDir, & & layout%fStencil%cxDir ) if ( .not. allocated(layout%weight) ) & & allocate( layout%weight( layout%fStencil%QQ )) call mus_set_weights_d2q9( layout%weight ) layout%fStencil%useAll = .true. layout%fStencil%nElems = nElems layout%fStencil%restPosition = tem_stencil_zeroPos( layout%fStencil ) ! speed of sound layout%cs = mus_calculate_speed_of_sound( layout ) end subroutine mus_define_d2q9 ! ****************************************************************************** ! ! ****************************************************************************** ! subroutine mus_set_weights_d2q9( weights ) real( kind=rk ) :: weights(9) weights(1:4) = div1_9 weights(5:8) = div1_36 weights(9) = div4_9 end subroutine mus_set_weights_d2q9 ! ****************************************************************************** ! ! ****************************************************************************** ! !> This subroutine sets the parameters for the predefined d2q5 stencil. !! subroutine mus_define_d2q5( layout, nElems ) ! --------------------------------------------------------------------------- !> scheme layout for pdf state type( mus_scheme_layout_type ), intent(inout) :: layout !> number of elements use this layout integer, intent(in) :: nElems ! --------------------------------------------------------------------------- ! fill the tem_stencilHeader_type call tem_create_stencil( layout%fStencil, 'd2q5' ) ! setting the prevailing directions (normalized major directions without ! sign) call tem_identify_prevailDirections( layout%prevailDir, & & layout%fStencil%cxDir ) if ( .not. allocated(layout%weight) ) & & allocate( layout%weight( layout%fStencil%QQ )) call mus_set_weights_d2q5( layout%weight ) layout%fStencil%useAll = .true. layout%fStencil%nElems = nElems layout%fStencil%restPosition = tem_stencil_zeroPos( layout%fStencil ) ! speed of sound layout%cs = mus_calculate_speed_of_sound( layout ) end subroutine mus_define_d2q5 ! ****************************************************************************** ! ! ****************************************************************************** ! subroutine mus_set_weights_d2q5( weights ) real( kind=rk ) :: weights(5) weights(1:4) = div1_4 weights(5) = 0.0_rk end subroutine mus_set_weights_d2q5 ! ****************************************************************************** ! ! ****************************************************************************** ! !> This subroutine sets the parameters for the predefined d2q9 stencil. !! subroutine mus_define_d1q3( layout, nElems ) ! --------------------------------------------------------------------------- !> scheme layout for pdf state type( mus_scheme_layout_type ), intent(inout) :: layout !> number of elements use this layout integer, intent(in) :: nElems ! --------------------------------------------------------------------------- ! fill the tem_stencilHeader_type call tem_create_stencil( layout%fStencil, 'd1q3' ) ! setting the prevailing directions (normalized major directions without ! sign) call tem_identify_prevailDirections( layout%prevailDir, & & layout%fStencil%cxDir ) allocate( layout%weight( layout%fStencil%QQ )) call mus_set_weights_d1q3( layout%weight ) layout%fStencil%useAll = .true. layout%fStencil%nElems = nElems layout%fStencil%restPosition = tem_stencil_zeroPos( layout%fStencil ) ! speed of sound layout%cs = mus_calculate_speed_of_sound( layout ) end subroutine mus_define_d1q3 ! ****************************************************************************** ! subroutine mus_set_weights_d1q3( weights ) real( kind=rk ) :: weights(3) ! Weights from [1] E. M. Viggen, The lattice Boltzmann method in ! acoustics, Scandinavian Symposium on Physical Acoustics, pp. 1–5, Mar. ! 2010. weights(1:2) = div1_6 weights(3) = div2_3 end subroutine mus_set_weights_d1q3 ! ****************************************************************************** ! ! ****************************************************************************** ! !> Calculate lattice speed of sound for given stencil function mus_calculate_speed_of_sound(layout) result(c_sound) ! --------------------------------------------------------------------------- !> scheme layout for pdf state type( mus_scheme_layout_type ), intent(inout) :: layout real(kind=rk) :: c_sound ! --------------------------------------------------------------------------- c_sound = sqrt(sum( layout%fStencil%cxcx(1,:) * layout%weight(:) )) end function mus_calculate_speed_of_sound ! ****************************************************************************** ! end module mus_scheme_layout_module ! ****************************************************************************** !