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chuckv |
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!! MPI support for long range forces using force decomposition |
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!! on a square grid of processors. |
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!! Corresponds to mpiSimunation.cpp for C++ |
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!! mpi_module also contains a private interface for mpi f90 routines. |
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!! |
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!! @author Charles F. Vardeman II |
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!! @author Matthew Meineke |
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chuckv |
259 |
!! @version $Id: mpiSimulation_module.F90,v 1.6 2003-01-30 22:29:58 chuckv Exp $, $Date: 2003-01-30 22:29:58 $, $Name: not supported by cvs2svn $, $Revision: 1.6 $ |
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chuckv |
215 |
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module mpiSimulation |
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chuckv |
254 |
use definitions |
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chuckv |
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use mpi |
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implicit none |
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PRIVATE |
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!! PUBLIC Subroutines contained in this module |
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!! gather and scatter are a generic interface |
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!! to gather and scatter routines |
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public :: gather, scatter |
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public :: setupSimParallel |
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public :: replanSimParallel |
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chuckv |
230 |
public :: getNcol |
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public :: getNrow |
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chuckv |
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public :: isMPISimSet |
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chuckv |
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chuckv |
215 |
!! PUBLIC Subroutines contained in MPI module |
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public :: mpi_bcast |
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public :: mpi_allreduce |
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public :: mpi_reduce |
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public :: mpi_send |
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public :: mpi_recv |
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public :: mpi_get_processor_name |
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public :: mpi_finalize |
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!! PUBLIC mpi variables |
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public :: mpi_comm_world |
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public :: mpi_character |
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public :: mpi_integer |
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public :: mpi_double_precision |
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public :: mpi_sum |
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public :: mpi_max |
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public :: mpi_status_size |
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public :: mpi_any_source |
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!! Safety logical to prevent access to ComponetPlan until |
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!! set by C++. |
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logical :: ComponentPlanSet = .false. |
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!! generic mpi error declaration. |
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integer,public :: mpi_err |
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chuckv |
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chuckv |
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chuckv |
215 |
!! Include mpiComponentPlan type. mpiComponentPlan is a |
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!! dual header file for both c and fortran. |
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#define __FORTRAN90 |
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#include "mpiComponentPlan.h" |
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chuckv |
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!! Tags used during force loop for parallel simulation |
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integer, allocatable, dimension(:) :: tagLocal |
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integer, public, allocatable, dimension(:) :: tagRow |
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integer ,public, allocatable, dimension(:) :: tagColumn |
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!! Logical set true if mpiSimulation has been initialized |
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chuckv |
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logical :: isSimSet = .false. |
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chuckv |
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chuckv |
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type (mpiComponentPlan) :: mpiSim |
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chuckv |
215 |
!! gs_plan contains plans for gather and scatter routines |
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type, public :: gs_plan |
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private |
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type (mpiComponentPlan), pointer :: gsComponentPlan => NULL() |
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integer :: gsPlanSize !! size of this plan (nDim*nComponents) |
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integer :: globalPlanSize !! size of all components in plan |
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integer, dimension(:), pointer :: displs !! Displacements array for mpi indexed from 0. |
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integer, dimension(:), pointer :: counts !! Counts array for mpi indexed from 0. |
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integer :: myPlanComm !! My communicator for this plan |
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integer :: myPlanRank !! My rank in this plan |
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integer :: planNprocs !! Number of processors in this plan |
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end type gs_plan |
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! plans for different decompositions |
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type (gs_plan), public :: plan_row |
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type (gs_plan), public :: plan_row3d |
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type (gs_plan), public :: plan_col |
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type (gs_plan), public :: plan_col3d |
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type (mpiComponentPlan), pointer :: simComponentPlan |
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! interface for gather scatter routines |
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!! Generic interface for gather. |
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!! Gathers an local array into row or column array |
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!! Interface provided for integer, double and double |
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!! rank 2 arrays. |
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interface gather |
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module procedure gather_integer |
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module procedure gather_double |
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module procedure gather_double_2d |
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end interface |
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!! Generic interface for scatter. |
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!! Scatters a row or column array, adding componets |
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!! and reducing them to a local nComponent array. |
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!! Interface provided for double and double rank=2 arrays. |
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interface scatter |
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module procedure scatter_double |
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module procedure scatter_double_2d |
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end interface |
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chuckv |
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chuckv |
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contains |
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!! Sets up mpiComponentPlan with structure passed from C++. |
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chuckv |
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subroutine setupSimParallel(thisComponentPlan,ntags,tags,status) |
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chuckv |
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! Passed Arguments |
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! integer, intent(inout) :: nDim !! Number of dimensions |
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!! mpiComponentPlan struct from C |
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chuckv |
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type (mpiComponentPlan), intent(inout) :: thisComponentPlan |
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!! Number of tags passed, nlocal |
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integer, intent(in) :: ntags |
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!! Result status, 0 = normal, -1 = error |
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chuckv |
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integer, intent(out) :: status |
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chuckv |
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integer :: localStatus |
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!! Global reference tag for local particles |
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integer, dimension(ntags),intent(inout) :: tags |
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chuckv |
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chuckv |
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chuckv |
215 |
status = 0 |
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if (componentPlanSet) then |
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return |
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endif |
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componentPlanSet = .true. |
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chuckv |
254 |
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chuckv |
259 |
!! copy c component plan to fortran |
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mpiSim = thisComponentPlan |
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write(*,*) "Seting up simParallel" |
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if (mpiSim%myNode == 0) then |
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write(*,*) "SetupSimParallel: writing component plan" |
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write(*,*) "nMolGlobal: ", mpiSim%nMolGlobal |
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write(*,*) "nAtomsGlobal: ", mpiSim%nAtomsGlobal |
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write(*,*) "nBondGlobal: ", mpiSim%nBondsGlobal |
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write(*,*) "nTorsionsGlobal: ", mpiSim%nTorsionsGlobal |
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write(*,*) "nSRIGlobal: ", mpiSim%nSRIGlobal |
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write(*,*) "myMolStart: ", mpiSim%myMolStart |
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write(*,*) "myMolEnd: ", mpiSim%myMolEnd |
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write(*,*) "myMol: ", mpiSim%myMol |
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write(*,*) "myNlocal: ", mpiSim%myNlocal |
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write(*,*) "myNode: ", mpiSim%myNode |
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write(*,*) "numberProcessors: ", mpiSim%numberProcessors |
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write(*,*) "rowComm: ", mpiSim%rowComm |
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write(*,*) "columnComm: ", mpiSim%columnComm |
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write(*,*) "numberRows: ", mpiSim%numberRows |
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write(*,*) "numberColumns: ", mpiSim%numberColumns |
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write(*,*) "nComponentsRow: ", mpiSim%nComponentsRow |
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write(*,*) "nComponentsColumn: ", mpiSim%nComponentsColumn |
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write(*,*) "rowIndex: ", mpiSim%rowIndex |
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write(*,*) "columnIndex: ", mpiSim%columnIndex |
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endif |
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call make_Force_Grid(mpiSim,localStatus) |
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chuckv |
215 |
if (localStatus /= 0) then |
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chuckv |
254 |
write(default_error,*) "Error creating force grid" |
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chuckv |
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status = -1 |
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return |
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endif |
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chuckv |
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call updateGridComponents(mpiSim,localStatus) |
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chuckv |
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if (localStatus /= 0) then |
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chuckv |
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write(default_error,*) "Error updating grid components" |
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chuckv |
215 |
status = -1 |
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return |
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endif |
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chuckv |
254 |
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chuckv |
215 |
!! initialize gather and scatter plans used in this simulation |
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chuckv |
259 |
call plan_gather_scatter(1,mpiSim%nComponentsRow,& |
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mpiSim,mpiSim%rowComm,plan_row) |
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call plan_gather_scatter(nDim,mpiSim%nComponentsRow,& |
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mpiSim,mpiSim%rowComm,plan_row3d) |
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call plan_gather_scatter(1,mpiSim%nComponentsColumn,& |
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mpiSim,mpiSim%columnComm,plan_col) |
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call plan_gather_scatter(nDim,mpiSim%nComponentsColumn,& |
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mpiSim,mpiSim%columnComm,plan_col3d) |
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chuckv |
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chuckv |
239 |
! Initialize tags |
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call setTags(tags,localStatus) |
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if (localStatus /= 0) then |
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status = -1 |
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return |
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endif |
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isSimSet = .true. |
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chuckv |
215 |
end subroutine setupSimParallel |
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subroutine replanSimParallel(thisComponentPlan,status) |
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! Passed Arguments |
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!! mpiComponentPlan struct from C |
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type (mpiComponentPlan), intent(inout) :: thisComponentPlan |
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integer, intent(out) :: status |
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chuckv |
254 |
integer :: localStatus |
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integer :: mpierror |
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chuckv |
215 |
status = 0 |
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call updateGridComponents(thisComponentPlan,localStatus) |
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if (localStatus /= 0) then |
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status = -1 |
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return |
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endif |
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!! Unplan Gather Scatter plans |
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call unplan_gather_scatter(plan_row) |
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call unplan_gather_scatter(plan_row3d) |
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call unplan_gather_scatter(plan_col) |
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call unplan_gather_scatter(plan_col3d) |
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!! initialize gather and scatter plans used in this simulation |
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call plan_gather_scatter(1,thisComponentPlan%nComponentsRow,& |
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chuckv |
254 |
thisComponentPlan,thisComponentPlan%rowComm,plan_row) |
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chuckv |
215 |
call plan_gather_scatter(nDim,thisComponentPlan%nComponentsRow,& |
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chuckv |
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thisComponentPlan,thisComponentPlan%rowComm,plan_row3d) |
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chuckv |
215 |
call plan_gather_scatter(1,thisComponentPlan%nComponentsColumn,& |
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chuckv |
254 |
thisComponentPlan,thisComponentPlan%columnComm,plan_col) |
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chuckv |
215 |
call plan_gather_scatter(nDim,thisComponentPlan%nComponentsColumn,& |
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chuckv |
254 |
thisComponentPlan,thisComponentPlan%rowComm,plan_col3d) |
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chuckv |
215 |
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end subroutine replanSimParallel |
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!! Updates number of row and column components for long range forces. |
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subroutine updateGridComponents(thisComponentPlan,status) |
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type (mpiComponentPlan) :: thisComponentPlan !! mpiComponentPlan |
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!! Status return |
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!! - 0 Success |
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!! - -1 Failure |
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integer, intent(out) :: status |
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integer :: nComponentsLocal |
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integer :: nComponentsRow = 0 |
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chuckv |
254 |
integer :: nComponentsColumn = 0 |
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chuckv |
215 |
integer :: mpiErrors |
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status = 0 |
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if (.not. componentPlanSet) return |
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if (thisComponentPlan%myNlocal == 0 ) then |
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status = -1 |
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return |
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endif |
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nComponentsLocal = thisComponentPlan%myNlocal |
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call mpi_allreduce(nComponentsLocal,nComponentsRow,1,mpi_integer,& |
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chuckv |
254 |
mpi_sum,thisComponentPlan%rowComm,mpiErrors) |
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chuckv |
215 |
if (mpiErrors /= 0) then |
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status = -1 |
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return |
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endif |
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call mpi_allreduce(nComponentsLocal,nComponentsColumn,1,mpi_integer, & |
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chuckv |
254 |
mpi_sum,thisComponentPlan%columnComm,mpiErrors) |
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chuckv |
215 |
if (mpiErrors /= 0) then |
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status = -1 |
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return |
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endif |
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thisComponentPlan%nComponentsRow = nComponentsRow |
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thisComponentPlan%nComponentsColumn = nComponentsColumn |
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end subroutine updateGridComponents |
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!! Creates a square force decomposition of processors into row and column |
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!! communicators. |
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subroutine make_Force_Grid(thisComponentPlan,status) |
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type (mpiComponentPlan) :: thisComponentPlan |
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integer, intent(out) :: status !! status returns -1 if error |
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integer :: nColumnsMax !! Maximum number of columns |
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integer :: nWorldProcessors !! Total number of processors in World comm. |
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integer :: rowIndex !! Row for this processor. |
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integer :: columnIndex !! Column for this processor. |
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integer :: nRows !! Total number of rows. |
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integer :: nColumns !! Total number of columns. |
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integer :: mpiErrors !! MPI errors. |
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integer :: rowCommunicator !! MPI row communicator. |
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integer :: columnCommunicator |
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integer :: myWorldRank |
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integer :: i |
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if (.not. ComponentPlanSet) return |
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status = 0 |
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chuckv |
254 |
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chuckv |
215 |
!! We make a dangerous assumption here that if numberProcessors is |
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!! zero, then we need to get the information from MPI. |
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if (thisComponentPlan%numberProcessors == 0 ) then |
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call mpi_comm_size( MPI_COMM_WORLD, nWorldProcessors,mpiErrors) |
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if ( mpiErrors /= 0 ) then |
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status = -1 |
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return |
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endif |
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call mpi_comm_rank( MPI_COMM_WORLD,myWorldRank,mpiErrors) |
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if ( mpiErrors /= 0 ) then |
| 317 |
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status = -1 |
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return |
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endif |
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else |
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nWorldProcessors = thisComponentPlan%numberProcessors |
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chuckv |
253 |
myWorldRank = thisComponentPlan%myNode |
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chuckv |
215 |
endif |
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nColumnsMax = nint(sqrt(real(nWorldProcessors,kind=dp))) |
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do i = 1, nColumnsMax |
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if (mod(nWorldProcessors,i) == 0) nColumns = i |
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end do |
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nRows = nWorldProcessors/nColumns |
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rowIndex = myWorldRank/nColumns |
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chuckv |
254 |
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call mpi_comm_split(mpi_comm_world,rowIndex,0,rowCommunicator,mpiErrors) |
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chuckv |
215 |
if ( mpiErrors /= 0 ) then |
| 343 |
chuckv |
254 |
write(default_error,*) "MPI comm split failed at row communicator" |
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chuckv |
215 |
status = -1 |
| 345 |
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return |
| 346 |
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endif |
| 347 |
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| 348 |
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columnIndex = mod(myWorldRank,nColumns) |
| 349 |
chuckv |
254 |
call mpi_comm_split(mpi_comm_world,columnIndex,0,columnCommunicator,mpiErrors) |
| 350 |
chuckv |
215 |
if ( mpiErrors /= 0 ) then |
| 351 |
chuckv |
254 |
write(default_error,*) "MPI comm split faild at columnCommunicator" |
| 352 |
chuckv |
215 |
status = -1 |
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return |
| 354 |
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endif |
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! Set appropriate components of thisComponentPlan |
| 357 |
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thisComponentPlan%rowComm = rowCommunicator |
| 358 |
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thisComponentPlan%columnComm = columnCommunicator |
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thisComponentPlan%rowIndex = rowIndex |
| 360 |
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thisComponentPlan%columnIndex = columnIndex |
| 361 |
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thisComponentPlan%numberRows = nRows |
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thisComponentPlan%numberColumns = nColumns |
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end subroutine make_Force_Grid |
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|
| 368 |
|
|
!! initalizes a gather scatter plan |
| 369 |
|
|
subroutine plan_gather_scatter( nDim,nComponents,thisComponentPlan, & |
| 370 |
|
|
thisComm, this_plan,status) |
| 371 |
|
|
integer, intent(in) :: nDim !! Number of dimensions for gather scatter plan |
| 372 |
|
|
integer, intent(in) :: nComponents |
| 373 |
|
|
type (mpiComponentPlan), intent(in), target :: thisComponentPlan |
| 374 |
|
|
type (gs_plan), intent(out) :: this_plan !! MPI Component Plan |
| 375 |
|
|
integer, intent(in) :: thisComm !! MPI communicator for this plan |
| 376 |
|
|
|
| 377 |
|
|
integer :: arraySize !! size to allocate plan for |
| 378 |
|
|
integer, intent(out), optional :: status |
| 379 |
|
|
integer :: ierror |
| 380 |
|
|
integer :: i,junk |
| 381 |
|
|
|
| 382 |
|
|
if (present(status)) status = 0 |
| 383 |
|
|
|
| 384 |
|
|
|
| 385 |
|
|
!! Set gsComponetPlan pointer |
| 386 |
|
|
!! to the componet plan we want to use for this gather scatter plan. |
| 387 |
|
|
!! WARNING this could be dangerous since thisComponentPlan was origionally |
| 388 |
|
|
!! allocated in C++ and there is a significant difference between c and |
| 389 |
|
|
!! f95 pointers.... |
| 390 |
chuckv |
254 |
this_plan%gsComponentPlan => thisComponentPlan |
| 391 |
chuckv |
215 |
|
| 392 |
|
|
! Set this plan size for displs array. |
| 393 |
|
|
this_plan%gsPlanSize = nDim * nComponents |
| 394 |
|
|
|
| 395 |
|
|
! Duplicate communicator for this plan |
| 396 |
|
|
call mpi_comm_dup(thisComm,this_plan%myPlanComm,mpi_err) |
| 397 |
|
|
if (mpi_err /= 0) then |
| 398 |
|
|
if (present(status)) status = -1 |
| 399 |
|
|
return |
| 400 |
|
|
end if |
| 401 |
|
|
call mpi_comm_rank(this_plan%myPlanComm,this_plan%myPlanRank,mpi_err) |
| 402 |
|
|
if (mpi_err /= 0) then |
| 403 |
|
|
if (present(status)) status = -1 |
| 404 |
|
|
return |
| 405 |
|
|
end if |
| 406 |
|
|
|
| 407 |
|
|
call mpi_comm_size(this_plan%myPlanComm,this_plan%planNprocs,mpi_err) |
| 408 |
|
|
|
| 409 |
|
|
if (mpi_err /= 0) then |
| 410 |
|
|
if (present(status)) status = -1 |
| 411 |
|
|
return |
| 412 |
|
|
end if |
| 413 |
|
|
|
| 414 |
|
|
!! counts and displacements arrays are indexed from 0 to be compatable |
| 415 |
|
|
!! with MPI arrays. |
| 416 |
|
|
allocate (this_plan%counts(0:this_plan%planNprocs-1),STAT=ierror) |
| 417 |
|
|
if (ierror /= 0) then |
| 418 |
|
|
if (present(status)) status = -1 |
| 419 |
|
|
return |
| 420 |
|
|
end if |
| 421 |
|
|
|
| 422 |
|
|
allocate (this_plan%displs(0:this_plan%planNprocs-1),STAT=ierror) |
| 423 |
|
|
if (ierror /= 0) then |
| 424 |
|
|
if (present(status)) status = -1 |
| 425 |
|
|
return |
| 426 |
|
|
end if |
| 427 |
|
|
|
| 428 |
|
|
!! gather all the local sizes into a size # processors array. |
| 429 |
chuckv |
253 |
call mpi_allgather(this_plan%gsPlanSize,1,mpi_integer,this_plan%counts, & |
| 430 |
chuckv |
254 |
1,mpi_integer,thisComm,mpi_err) |
| 431 |
chuckv |
215 |
|
| 432 |
|
|
if (mpi_err /= 0) then |
| 433 |
|
|
if (present(status)) status = -1 |
| 434 |
|
|
return |
| 435 |
|
|
end if |
| 436 |
|
|
|
| 437 |
|
|
|
| 438 |
|
|
!! figure out the total number of particles in this plan |
| 439 |
|
|
this_plan%globalPlanSize = sum(this_plan%counts) |
| 440 |
|
|
|
| 441 |
|
|
|
| 442 |
|
|
!! initialize plan displacements. |
| 443 |
|
|
this_plan%displs(0) = 0 |
| 444 |
|
|
do i = 1, this_plan%planNprocs - 1,1 |
| 445 |
|
|
this_plan%displs(i) = this_plan%displs(i-1) + this_plan%counts(i-1) |
| 446 |
|
|
end do |
| 447 |
|
|
|
| 448 |
|
|
end subroutine plan_gather_scatter |
| 449 |
|
|
|
| 450 |
|
|
|
| 451 |
|
|
subroutine unplan_gather_scatter(this_plan) |
| 452 |
|
|
type (gs_plan), intent(inout) :: this_plan |
| 453 |
|
|
|
| 454 |
|
|
|
| 455 |
|
|
this_plan%gsComponentPlan => null() |
| 456 |
chuckv |
253 |
call mpi_comm_free(this_plan%myPlanComm,mpi_err) |
| 457 |
chuckv |
215 |
|
| 458 |
|
|
deallocate(this_plan%counts) |
| 459 |
|
|
deallocate(this_plan%displs) |
| 460 |
|
|
|
| 461 |
|
|
end subroutine unplan_gather_scatter |
| 462 |
|
|
|
| 463 |
|
|
subroutine gather_integer( sbuffer, rbuffer, this_plan, status) |
| 464 |
|
|
|
| 465 |
|
|
type (gs_plan), intent(in) :: this_plan |
| 466 |
|
|
integer, dimension(:), intent(in) :: sbuffer |
| 467 |
|
|
integer, dimension(:), intent(in) :: rbuffer |
| 468 |
|
|
integer :: noffset |
| 469 |
|
|
integer, intent(out), optional :: status |
| 470 |
chuckv |
259 |
integer :: i |
| 471 |
chuckv |
215 |
|
| 472 |
chuckv |
259 |
|
| 473 |
chuckv |
215 |
if (present(status)) status = 0 |
| 474 |
|
|
noffset = this_plan%displs(this_plan%myPlanRank) |
| 475 |
|
|
|
| 476 |
|
|
call mpi_allgatherv(sbuffer,this_plan%gsPlanSize, mpi_integer, & |
| 477 |
|
|
rbuffer,this_plan%counts,this_plan%displs,mpi_integer, & |
| 478 |
|
|
this_plan%myPlanComm, mpi_err) |
| 479 |
|
|
|
| 480 |
|
|
if (mpi_err /= 0) then |
| 481 |
|
|
if (present(status)) status = -1 |
| 482 |
|
|
endif |
| 483 |
|
|
|
| 484 |
|
|
end subroutine gather_integer |
| 485 |
|
|
|
| 486 |
|
|
subroutine gather_double( sbuffer, rbuffer, this_plan, status) |
| 487 |
|
|
|
| 488 |
|
|
type (gs_plan), intent(in) :: this_plan |
| 489 |
|
|
real( kind = DP ), dimension(:), intent(in) :: sbuffer |
| 490 |
|
|
real( kind = DP ), dimension(:), intent(in) :: rbuffer |
| 491 |
|
|
integer :: noffset |
| 492 |
|
|
integer, intent(out), optional :: status |
| 493 |
|
|
|
| 494 |
|
|
if (present(status)) status = 0 |
| 495 |
chuckv |
253 |
noffset = this_plan%displs(this_plan%myPlanRank) |
| 496 |
chuckv |
215 |
|
| 497 |
|
|
call mpi_allgatherv(sbuffer,this_plan%gsPlanSize, mpi_double_precision, & |
| 498 |
|
|
rbuffer,this_plan%counts,this_plan%displs,mpi_double_precision, & |
| 499 |
|
|
this_plan%myPlanComm, mpi_err) |
| 500 |
|
|
|
| 501 |
|
|
if (mpi_err /= 0) then |
| 502 |
|
|
if (present(status)) status = -1 |
| 503 |
|
|
endif |
| 504 |
|
|
|
| 505 |
|
|
end subroutine gather_double |
| 506 |
|
|
|
| 507 |
|
|
subroutine gather_double_2d( sbuffer, rbuffer, this_plan, status) |
| 508 |
|
|
|
| 509 |
|
|
type (gs_plan), intent(in) :: this_plan |
| 510 |
|
|
real( kind = DP ), dimension(:,:), intent(in) :: sbuffer |
| 511 |
|
|
real( kind = DP ), dimension(:,:), intent(in) :: rbuffer |
| 512 |
|
|
integer :: noffset,i,ierror |
| 513 |
|
|
integer, intent(out), optional :: status |
| 514 |
|
|
|
| 515 |
|
|
external mpi_allgatherv |
| 516 |
|
|
|
| 517 |
|
|
if (present(status)) status = 0 |
| 518 |
|
|
|
| 519 |
|
|
! noffset = this_plan%displs(this_plan%me) |
| 520 |
|
|
|
| 521 |
|
|
call mpi_allgatherv(sbuffer,this_plan%gsPlanSize, mpi_double_precision, & |
| 522 |
|
|
rbuffer,this_plan%counts,this_plan%displs,mpi_double_precision, & |
| 523 |
|
|
this_plan%myPlanComm, mpi_err) |
| 524 |
|
|
|
| 525 |
|
|
if (mpi_err /= 0) then |
| 526 |
|
|
if (present(status)) status = -1 |
| 527 |
|
|
endif |
| 528 |
|
|
|
| 529 |
|
|
end subroutine gather_double_2d |
| 530 |
|
|
|
| 531 |
|
|
subroutine scatter_double( sbuffer, rbuffer, this_plan, status) |
| 532 |
|
|
|
| 533 |
|
|
type (gs_plan), intent(in) :: this_plan |
| 534 |
|
|
real( kind = DP ), dimension(:), intent(in) :: sbuffer |
| 535 |
|
|
real( kind = DP ), dimension(:), intent(in) :: rbuffer |
| 536 |
|
|
integer, intent(out), optional :: status |
| 537 |
|
|
external mpi_reduce_scatter |
| 538 |
|
|
|
| 539 |
|
|
if (present(status)) status = 0 |
| 540 |
|
|
|
| 541 |
|
|
call mpi_reduce_scatter(sbuffer,rbuffer, this_plan%counts, & |
| 542 |
|
|
mpi_double_precision, MPI_SUM, this_plan%myPlanComm, mpi_err) |
| 543 |
|
|
|
| 544 |
|
|
if (mpi_err /= 0) then |
| 545 |
|
|
if (present(status)) status = -1 |
| 546 |
|
|
endif |
| 547 |
|
|
|
| 548 |
|
|
end subroutine scatter_double |
| 549 |
|
|
|
| 550 |
|
|
subroutine scatter_double_2d( sbuffer, rbuffer, this_plan, status) |
| 551 |
|
|
|
| 552 |
|
|
type (gs_plan), intent(in) :: this_plan |
| 553 |
|
|
real( kind = DP ), dimension(:,:), intent(in) :: sbuffer |
| 554 |
|
|
real( kind = DP ), dimension(:,:), intent(in) :: rbuffer |
| 555 |
|
|
integer, intent(out), optional :: status |
| 556 |
|
|
external mpi_reduce_scatter |
| 557 |
|
|
|
| 558 |
|
|
if (present(status)) status = 0 |
| 559 |
|
|
call mpi_reduce_scatter(sbuffer,rbuffer, this_plan%counts, & |
| 560 |
|
|
mpi_double_precision, MPI_SUM, this_plan%myPlanComm, mpi_err) |
| 561 |
|
|
|
| 562 |
|
|
if (mpi_err /= 0) then |
| 563 |
|
|
if (present(status)) status = -1 |
| 564 |
|
|
endif |
| 565 |
|
|
|
| 566 |
|
|
end subroutine scatter_double_2d |
| 567 |
|
|
|
| 568 |
chuckv |
230 |
|
| 569 |
chuckv |
239 |
subroutine setTags(tags,status) |
| 570 |
chuckv |
253 |
integer, dimension(:) :: tags |
| 571 |
chuckv |
239 |
integer :: status |
| 572 |
|
|
|
| 573 |
|
|
integer :: alloc_stat |
| 574 |
|
|
|
| 575 |
chuckv |
253 |
integer :: ncol |
| 576 |
|
|
integer :: nrow |
| 577 |
|
|
|
| 578 |
chuckv |
239 |
status = 0 |
| 579 |
|
|
! allocate row arrays |
| 580 |
chuckv |
253 |
nrow = getNrow(plan_row) |
| 581 |
|
|
ncol = getNcol(plan_col) |
| 582 |
|
|
|
| 583 |
chuckv |
239 |
if (.not. allocated(tagRow)) then |
| 584 |
chuckv |
253 |
allocate(tagRow(nrow),STAT=alloc_stat) |
| 585 |
chuckv |
239 |
if (alloc_stat /= 0 ) then |
| 586 |
|
|
status = -1 |
| 587 |
|
|
return |
| 588 |
|
|
endif |
| 589 |
|
|
else |
| 590 |
|
|
deallocate(tagRow) |
| 591 |
chuckv |
253 |
allocate(tagRow(nrow),STAT=alloc_stat) |
| 592 |
chuckv |
239 |
if (alloc_stat /= 0 ) then |
| 593 |
|
|
status = -1 |
| 594 |
|
|
return |
| 595 |
|
|
endif |
| 596 |
|
|
|
| 597 |
|
|
endif |
| 598 |
|
|
! allocate column arrays |
| 599 |
chuckv |
254 |
if (.not. allocated(tagColumn)) then |
| 600 |
chuckv |
253 |
allocate(tagColumn(ncol),STAT=alloc_stat) |
| 601 |
chuckv |
239 |
if (alloc_stat /= 0 ) then |
| 602 |
|
|
status = -1 |
| 603 |
|
|
return |
| 604 |
|
|
endif |
| 605 |
|
|
else |
| 606 |
chuckv |
253 |
deallocate(tagColumn) |
| 607 |
|
|
allocate(tagColumn(ncol),STAT=alloc_stat) |
| 608 |
chuckv |
239 |
if (alloc_stat /= 0 ) then |
| 609 |
|
|
status = -1 |
| 610 |
|
|
return |
| 611 |
|
|
endif |
| 612 |
|
|
endif |
| 613 |
|
|
|
| 614 |
|
|
call gather(tags,tagRow,plan_row) |
| 615 |
chuckv |
253 |
call gather(tags,tagColumn,plan_col) |
| 616 |
chuckv |
239 |
|
| 617 |
|
|
|
| 618 |
|
|
end subroutine setTags |
| 619 |
|
|
|
| 620 |
chuckv |
253 |
pure function getNcol(thisplan) result(ncol) |
| 621 |
|
|
type (gs_plan), intent(in) :: thisplan |
| 622 |
chuckv |
230 |
integer :: ncol |
| 623 |
chuckv |
253 |
ncol = thisplan%gsComponentPlan%nComponentsColumn |
| 624 |
chuckv |
230 |
end function getNcol |
| 625 |
|
|
|
| 626 |
chuckv |
253 |
pure function getNrow(thisplan) result(ncol) |
| 627 |
|
|
type (gs_plan), intent(in) :: thisplan |
| 628 |
chuckv |
230 |
integer :: ncol |
| 629 |
|
|
ncol = thisplan%gsComponentPlan%nComponentsrow |
| 630 |
|
|
end function getNrow |
| 631 |
|
|
|
| 632 |
chuckv |
253 |
function isMPISimSet() result(isthisSimSet) |
| 633 |
chuckv |
239 |
logical :: isthisSimSet |
| 634 |
|
|
if (isSimSet) then |
| 635 |
|
|
isthisSimSet = .true. |
| 636 |
|
|
else |
| 637 |
|
|
isthisSimSet = .false. |
| 638 |
|
|
endif |
| 639 |
|
|
end function isMPISimSet |
| 640 |
chuckv |
215 |
|
| 641 |
chuckv |
230 |
|
| 642 |
|
|
|
| 643 |
chuckv |
254 |
|
| 644 |
chuckv |
215 |
end module mpiSimulation |
| 645 |
|
|
|
