Fix extprol. Remove obsolete hybrid aggregator.
sfilippone
1 year ago
parent
bf96dd554c
commit
749ab2f6ae
@ -1,125 +0,0 @@
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!
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!
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! AMG4PSBLAS version 1.0
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! Algebraic Multigrid Package
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! based on PSBLAS (Parallel Sparse BLAS version 3.7)
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!
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! (C) Copyright 2020
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!
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! Salvatore Filippone
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! Pasqua D'Ambra
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! Fabio Durastante
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!
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! Redistribution and use in source and binary forms, with or without
|
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! 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.
|
||||
! 3. The name of the AMG4PSBLAS group or the names of its contributors may
|
||||
! not be used to endorse or promote products derived from this
|
||||
! software without specific written permission.
|
||||
!
|
||||
! THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
! ``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 THE AMG4PSBLAS GROUP OR ITS 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)
|
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! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
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! POSSIBILITY OF SUCH DAMAGE.
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!
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!
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!
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!
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! The aggregator object hosts the aggregation method for building
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! the multilevel hierarchy. This variant is based on the hybrid method
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! presented in
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!
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! S. Gratton, P. Henon, P. Jiranek and X. Vasseur:
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! Reducing complexity of algebraic multigrid by aggregation
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! Numerical Lin. Algebra with Applications, 2016, 23:501-518
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!
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module amg_c_hybrid_aggregator_mod
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use amg_c_dec_aggregator_mod
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!
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! sm - class(amg_T_base_smoother_type), allocatable
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! The current level preconditioner (aka smoother).
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! parms - type(amg_RTml_parms)
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! The parameters defining the multilevel strategy.
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! ac - The local part of the current-level matrix, built by
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! coarsening the previous-level matrix.
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! desc_ac - type(psb_desc_type).
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! The communication descriptor associated to the matrix
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! stored in ac.
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! base_a - type(psb_Tspmat_type), pointer.
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! Pointer (really a pointer!) to the local part of the current
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! matrix (so we have a unified treatment of residuals).
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! We need this to avoid passing explicitly the current matrix
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! to the routine which applies the preconditioner.
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! base_desc - type(psb_desc_type), pointer.
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! Pointer to the communication descriptor associated to the
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! matrix pointed by base_a.
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! map - Stores the maps (restriction and prolongation) between the
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! vector spaces associated to the index spaces of the previous
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! and current levels.
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!
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! Methods:
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! Most methods follow the encapsulation hierarchy: they take whatever action
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! is appropriate for the current object, then call the corresponding method for
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! the contained object.
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! As an example: the descr() method prints out a description of the
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! level. It starts by invoking the descr() method of the parms object,
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! then calls the descr() method of the smoother object.
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!
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! descr - Prints a description of the object.
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! default - Set default values
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! dump - Dump to file object contents
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! set - Sets various parameters; when a request is unknown
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! it is passed to the smoother object for further processing.
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! check - Sanity checks.
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! sizeof - Total memory occupation in bytes
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! get_nzeros - Number of nonzeros
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!
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!
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type, extends(amg_c_dec_aggregator_type) :: amg_c_hybrid_aggregator_type
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contains
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procedure, pass(ag) :: bld_tprol => amg_c_hybrid_aggregator_build_tprol
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procedure, nopass :: fmt => amg_c_hybrid_aggregator_fmt
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end type amg_c_hybrid_aggregator_type
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interface
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subroutine amg_c_hybrid_aggregator_build_tprol(ag,parms,a,desc_a,ilaggr,nlaggr,op_prol,info)
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import :: amg_c_hybrid_aggregator_type, psb_desc_type, psb_cspmat_type, psb_spk_, &
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& psb_ipk_, psb_long_int_k_, amg_sml_parms
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implicit none
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class(amg_c_hybrid_aggregator_type), target, intent(inout) :: ag
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type(amg_sml_parms), intent(inout) :: parms
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type(psb_cspmat_type), intent(in) :: a
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type(psb_desc_type), intent(in) :: desc_a
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integer(psb_ipk_), allocatable, intent(out) :: ilaggr(:),nlaggr(:)
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type(psb_cspmat_type), intent(out) :: op_prol
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integer(psb_ipk_), intent(out) :: info
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end subroutine amg_c_hybrid_aggregator_build_tprol
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end interface
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contains
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function amg_c_hybrid_aggregator_fmt() result(val)
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implicit none
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character(len=32) :: val
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val = "Hybrid Decoupled aggregation"
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end function amg_c_hybrid_aggregator_fmt
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end module amg_c_hybrid_aggregator_mod
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@ -1,125 +0,0 @@
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!
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!
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! AMG4PSBLAS version 1.0
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! Algebraic Multigrid Package
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! based on PSBLAS (Parallel Sparse BLAS version 3.7)
|
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!
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! (C) Copyright 2020
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!
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! Salvatore Filippone
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! Pasqua D'Ambra
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! Fabio Durastante
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!
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! 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.
|
||||
! 3. The name of the AMG4PSBLAS group or the names of its contributors may
|
||||
! not be used to endorse or promote products derived from this
|
||||
! software without specific written permission.
|
||||
!
|
||||
! THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
! ``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 THE AMG4PSBLAS GROUP OR ITS 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)
|
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! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
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! POSSIBILITY OF SUCH DAMAGE.
|
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!
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!
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!
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!
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! The aggregator object hosts the aggregation method for building
|
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! the multilevel hierarchy. This variant is based on the hybrid method
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! presented in
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!
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! S. Gratton, P. Henon, P. Jiranek and X. Vasseur:
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! Reducing complexity of algebraic multigrid by aggregation
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! Numerical Lin. Algebra with Applications, 2016, 23:501-518
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!
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module amg_d_hybrid_aggregator_mod
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use amg_d_dec_aggregator_mod
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!
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! sm - class(amg_T_base_smoother_type), allocatable
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! The current level preconditioner (aka smoother).
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! parms - type(amg_RTml_parms)
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! The parameters defining the multilevel strategy.
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! ac - The local part of the current-level matrix, built by
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! coarsening the previous-level matrix.
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! desc_ac - type(psb_desc_type).
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! The communication descriptor associated to the matrix
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! stored in ac.
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! base_a - type(psb_Tspmat_type), pointer.
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! Pointer (really a pointer!) to the local part of the current
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! matrix (so we have a unified treatment of residuals).
|
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! We need this to avoid passing explicitly the current matrix
|
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! to the routine which applies the preconditioner.
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! base_desc - type(psb_desc_type), pointer.
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! Pointer to the communication descriptor associated to the
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! matrix pointed by base_a.
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! map - Stores the maps (restriction and prolongation) between the
|
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! vector spaces associated to the index spaces of the previous
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! and current levels.
|
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!
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! Methods:
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! Most methods follow the encapsulation hierarchy: they take whatever action
|
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! is appropriate for the current object, then call the corresponding method for
|
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! the contained object.
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! As an example: the descr() method prints out a description of the
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! level. It starts by invoking the descr() method of the parms object,
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! then calls the descr() method of the smoother object.
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!
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! descr - Prints a description of the object.
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! default - Set default values
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! dump - Dump to file object contents
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! set - Sets various parameters; when a request is unknown
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! it is passed to the smoother object for further processing.
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! check - Sanity checks.
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! sizeof - Total memory occupation in bytes
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! get_nzeros - Number of nonzeros
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!
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!
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type, extends(amg_d_dec_aggregator_type) :: amg_d_hybrid_aggregator_type
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contains
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procedure, pass(ag) :: bld_tprol => amg_d_hybrid_aggregator_build_tprol
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procedure, nopass :: fmt => amg_d_hybrid_aggregator_fmt
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end type amg_d_hybrid_aggregator_type
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interface
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subroutine amg_d_hybrid_aggregator_build_tprol(ag,parms,a,desc_a,ilaggr,nlaggr,op_prol,info)
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import :: amg_d_hybrid_aggregator_type, psb_desc_type, psb_dspmat_type, psb_dpk_, &
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& psb_ipk_, psb_long_int_k_, amg_dml_parms
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implicit none
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class(amg_d_hybrid_aggregator_type), target, intent(inout) :: ag
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type(amg_dml_parms), intent(inout) :: parms
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type(psb_dspmat_type), intent(in) :: a
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type(psb_desc_type), intent(in) :: desc_a
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integer(psb_ipk_), allocatable, intent(out) :: ilaggr(:),nlaggr(:)
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type(psb_dspmat_type), intent(out) :: op_prol
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integer(psb_ipk_), intent(out) :: info
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end subroutine amg_d_hybrid_aggregator_build_tprol
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end interface
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contains
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function amg_d_hybrid_aggregator_fmt() result(val)
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implicit none
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character(len=32) :: val
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val = "Hybrid Decoupled aggregation"
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end function amg_d_hybrid_aggregator_fmt
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end module amg_d_hybrid_aggregator_mod
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@ -1,125 +0,0 @@
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!
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!
|
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! AMG4PSBLAS version 1.0
|
||||
! Algebraic Multigrid Package
|
||||
! based on PSBLAS (Parallel Sparse BLAS version 3.7)
|
||||
!
|
||||
! (C) Copyright 2020
|
||||
!
|
||||
! Salvatore Filippone
|
||||
! Pasqua D'Ambra
|
||||
! Fabio Durastante
|
||||
!
|
||||
! 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.
|
||||
! 3. The name of the AMG4PSBLAS group or the names of its contributors may
|
||||
! not be used to endorse or promote products derived from this
|
||||
! software without specific written permission.
|
||||
!
|
||||
! THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
! ``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 THE AMG4PSBLAS GROUP OR ITS 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.
|
||||
!
|
||||
!
|
||||
!
|
||||
!
|
||||
! The aggregator object hosts the aggregation method for building
|
||||
! the multilevel hierarchy. This variant is based on the hybrid method
|
||||
! presented in
|
||||
!
|
||||
! S. Gratton, P. Henon, P. Jiranek and X. Vasseur:
|
||||
! Reducing complexity of algebraic multigrid by aggregation
|
||||
! Numerical Lin. Algebra with Applications, 2016, 23:501-518
|
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!
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module amg_s_hybrid_aggregator_mod
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use amg_s_dec_aggregator_mod
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!
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! sm - class(amg_T_base_smoother_type), allocatable
|
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! The current level preconditioner (aka smoother).
|
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! parms - type(amg_RTml_parms)
|
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! The parameters defining the multilevel strategy.
|
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! ac - The local part of the current-level matrix, built by
|
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! coarsening the previous-level matrix.
|
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! desc_ac - type(psb_desc_type).
|
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! The communication descriptor associated to the matrix
|
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! stored in ac.
|
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! base_a - type(psb_Tspmat_type), pointer.
|
||||
! Pointer (really a pointer!) to the local part of the current
|
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! matrix (so we have a unified treatment of residuals).
|
||||
! We need this to avoid passing explicitly the current matrix
|
||||
! to the routine which applies the preconditioner.
|
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! base_desc - type(psb_desc_type), pointer.
|
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! Pointer to the communication descriptor associated to the
|
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! matrix pointed by base_a.
|
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! map - Stores the maps (restriction and prolongation) between the
|
||||
! vector spaces associated to the index spaces of the previous
|
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! and current levels.
|
||||
!
|
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! Methods:
|
||||
! Most methods follow the encapsulation hierarchy: they take whatever action
|
||||
! is appropriate for the current object, then call the corresponding method for
|
||||
! the contained object.
|
||||
! As an example: the descr() method prints out a description of the
|
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! level. It starts by invoking the descr() method of the parms object,
|
||||
! then calls the descr() method of the smoother object.
|
||||
!
|
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! descr - Prints a description of the object.
|
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! default - Set default values
|
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! dump - Dump to file object contents
|
||||
! set - Sets various parameters; when a request is unknown
|
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! it is passed to the smoother object for further processing.
|
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! check - Sanity checks.
|
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! sizeof - Total memory occupation in bytes
|
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! get_nzeros - Number of nonzeros
|
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!
|
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!
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type, extends(amg_s_dec_aggregator_type) :: amg_s_hybrid_aggregator_type
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contains
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procedure, pass(ag) :: bld_tprol => amg_s_hybrid_aggregator_build_tprol
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procedure, nopass :: fmt => amg_s_hybrid_aggregator_fmt
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end type amg_s_hybrid_aggregator_type
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interface
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subroutine amg_s_hybrid_aggregator_build_tprol(ag,parms,a,desc_a,ilaggr,nlaggr,op_prol,info)
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import :: amg_s_hybrid_aggregator_type, psb_desc_type, psb_sspmat_type, psb_spk_, &
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& psb_ipk_, psb_long_int_k_, amg_sml_parms
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implicit none
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class(amg_s_hybrid_aggregator_type), target, intent(inout) :: ag
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type(amg_sml_parms), intent(inout) :: parms
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type(psb_sspmat_type), intent(in) :: a
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type(psb_desc_type), intent(in) :: desc_a
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integer(psb_ipk_), allocatable, intent(out) :: ilaggr(:),nlaggr(:)
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type(psb_sspmat_type), intent(out) :: op_prol
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integer(psb_ipk_), intent(out) :: info
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end subroutine amg_s_hybrid_aggregator_build_tprol
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end interface
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contains
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function amg_s_hybrid_aggregator_fmt() result(val)
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implicit none
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character(len=32) :: val
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val = "Hybrid Decoupled aggregation"
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end function amg_s_hybrid_aggregator_fmt
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end module amg_s_hybrid_aggregator_mod
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@ -1,125 +0,0 @@
|
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!
|
||||
!
|
||||
! AMG4PSBLAS version 1.0
|
||||
! Algebraic Multigrid Package
|
||||
! based on PSBLAS (Parallel Sparse BLAS version 3.7)
|
||||
!
|
||||
! (C) Copyright 2020
|
||||
!
|
||||
! Salvatore Filippone
|
||||
! Pasqua D'Ambra
|
||||
! Fabio Durastante
|
||||
!
|
||||
! 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.
|
||||
! 3. The name of the AMG4PSBLAS group or the names of its contributors may
|
||||
! not be used to endorse or promote products derived from this
|
||||
! software without specific written permission.
|
||||
!
|
||||
! THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
! ``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 THE AMG4PSBLAS GROUP OR ITS 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.
|
||||
!
|
||||
!
|
||||
!
|
||||
!
|
||||
! The aggregator object hosts the aggregation method for building
|
||||
! the multilevel hierarchy. This variant is based on the hybrid method
|
||||
! presented in
|
||||
!
|
||||
! S. Gratton, P. Henon, P. Jiranek and X. Vasseur:
|
||||
! Reducing complexity of algebraic multigrid by aggregation
|
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! Numerical Lin. Algebra with Applications, 2016, 23:501-518
|
||||
!
|
||||
module amg_z_hybrid_aggregator_mod
|
||||
|
||||
use amg_z_dec_aggregator_mod
|
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!
|
||||
! sm - class(amg_T_base_smoother_type), allocatable
|
||||
! The current level preconditioner (aka smoother).
|
||||
! parms - type(amg_RTml_parms)
|
||||
! The parameters defining the multilevel strategy.
|
||||
! ac - The local part of the current-level matrix, built by
|
||||
! coarsening the previous-level matrix.
|
||||
! desc_ac - type(psb_desc_type).
|
||||
! The communication descriptor associated to the matrix
|
||||
! stored in ac.
|
||||
! base_a - type(psb_Tspmat_type), pointer.
|
||||
! Pointer (really a pointer!) to the local part of the current
|
||||
! matrix (so we have a unified treatment of residuals).
|
||||
! We need this to avoid passing explicitly the current matrix
|
||||
! to the routine which applies the preconditioner.
|
||||
! base_desc - type(psb_desc_type), pointer.
|
||||
! Pointer to the communication descriptor associated to the
|
||||
! matrix pointed by base_a.
|
||||
! map - Stores the maps (restriction and prolongation) between the
|
||||
! vector spaces associated to the index spaces of the previous
|
||||
! and current levels.
|
||||
!
|
||||
! Methods:
|
||||
! Most methods follow the encapsulation hierarchy: they take whatever action
|
||||
! is appropriate for the current object, then call the corresponding method for
|
||||
! the contained object.
|
||||
! As an example: the descr() method prints out a description of the
|
||||
! level. It starts by invoking the descr() method of the parms object,
|
||||
! then calls the descr() method of the smoother object.
|
||||
!
|
||||
! descr - Prints a description of the object.
|
||||
! default - Set default values
|
||||
! dump - Dump to file object contents
|
||||
! set - Sets various parameters; when a request is unknown
|
||||
! it is passed to the smoother object for further processing.
|
||||
! check - Sanity checks.
|
||||
! sizeof - Total memory occupation in bytes
|
||||
! get_nzeros - Number of nonzeros
|
||||
!
|
||||
!
|
||||
type, extends(amg_z_dec_aggregator_type) :: amg_z_hybrid_aggregator_type
|
||||
|
||||
contains
|
||||
procedure, pass(ag) :: bld_tprol => amg_z_hybrid_aggregator_build_tprol
|
||||
procedure, nopass :: fmt => amg_z_hybrid_aggregator_fmt
|
||||
end type amg_z_hybrid_aggregator_type
|
||||
|
||||
|
||||
interface
|
||||
subroutine amg_z_hybrid_aggregator_build_tprol(ag,parms,a,desc_a,ilaggr,nlaggr,op_prol,info)
|
||||
import :: amg_z_hybrid_aggregator_type, psb_desc_type, psb_zspmat_type, psb_dpk_, &
|
||||
& psb_ipk_, psb_long_int_k_, amg_dml_parms
|
||||
implicit none
|
||||
class(amg_z_hybrid_aggregator_type), target, intent(inout) :: ag
|
||||
type(amg_dml_parms), intent(inout) :: parms
|
||||
type(psb_zspmat_type), intent(in) :: a
|
||||
type(psb_desc_type), intent(in) :: desc_a
|
||||
integer(psb_ipk_), allocatable, intent(out) :: ilaggr(:),nlaggr(:)
|
||||
type(psb_zspmat_type), intent(out) :: op_prol
|
||||
integer(psb_ipk_), intent(out) :: info
|
||||
end subroutine amg_z_hybrid_aggregator_build_tprol
|
||||
end interface
|
||||
|
||||
contains
|
||||
|
||||
|
||||
function amg_z_hybrid_aggregator_fmt() result(val)
|
||||
implicit none
|
||||
character(len=32) :: val
|
||||
|
||||
val = "Hybrid Decoupled aggregation"
|
||||
end function amg_z_hybrid_aggregator_fmt
|
||||
|
||||
|
||||
end module amg_z_hybrid_aggregator_mod
|
||||
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Reference in New Issue