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Comparing trunk/OOPSE-4/src/UseTheForce/doForces.F90 (file contents):
Revision 2269 by chuckv, Tue Aug 9 19:40:56 2005 UTC vs.
Revision 2355 by chuckv, Wed Oct 12 18:59:16 2005 UTC

# Line 45 | Line 45
45  
46   !! @author Charles F. Vardeman II
47   !! @author Matthew Meineke
48 < !! @version $Id: doForces.F90,v 1.27 2005-08-09 19:40:56 chuckv Exp $, $Date: 2005-08-09 19:40:56 $, $Name: not supported by cvs2svn $, $Revision: 1.27 $
48 > !! @version $Id: doForces.F90,v 1.54 2005-10-12 18:59:16 chuckv Exp $, $Date: 2005-10-12 18:59:16 $, $Name: not supported by cvs2svn $, $Revision: 1.54 $
49  
50  
51   module doForces
# Line 58 | Line 58 | module doForces
58    use lj
59    use sticky
60    use electrostatic_module
61 <  use reaction_field
61 >  use reaction_field_module
62    use gb_pair
63    use shapes
64    use vector_class
# Line 73 | Line 73 | module doForces
73  
74   #define __FORTRAN90
75   #include "UseTheForce/fSwitchingFunction.h"
76 + #include "UseTheForce/fCutoffPolicy.h"
77   #include "UseTheForce/DarkSide/fInteractionMap.h"
78 + #include "UseTheForce/DarkSide/fElectrostaticSummationMethod.h"
79  
80 +
81    INTEGER, PARAMETER:: PREPAIR_LOOP = 1
82    INTEGER, PARAMETER:: PAIR_LOOP    = 2
83  
81  logical, save :: haveRlist = .false.
84    logical, save :: haveNeighborList = .false.
85    logical, save :: haveSIMvariables = .false.
86    logical, save :: haveSaneForceField = .false.
87 <  logical, save :: haveInteractionMap = .false.
87 >  logical, save :: haveInteractionHash = .false.
88 >  logical, save :: haveGtypeCutoffMap = .false.
89 >  logical, save :: haveDefaultCutoffs = .false.
90 >  logical, save :: haveRlist = .false.
91  
92    logical, save :: FF_uses_DirectionalAtoms
88  logical, save :: FF_uses_LennardJones
89  logical, save :: FF_uses_Electrostatics
90  logical, save :: FF_uses_Charges
93    logical, save :: FF_uses_Dipoles
92  logical, save :: FF_uses_Quadrupoles
93  logical, save :: FF_uses_Sticky
94  logical, save :: FF_uses_StickyPower
94    logical, save :: FF_uses_GayBerne
95    logical, save :: FF_uses_EAM
97  logical, save :: FF_uses_Shapes
98  logical, save :: FF_uses_FLARB
99  logical, save :: FF_uses_RF
96  
97    logical, save :: SIM_uses_DirectionalAtoms
102  logical, save :: SIM_uses_LennardJones
103  logical, save :: SIM_uses_Electrostatics
104  logical, save :: SIM_uses_Charges
105  logical, save :: SIM_uses_Dipoles
106  logical, save :: SIM_uses_Quadrupoles
107  logical, save :: SIM_uses_Sticky
108  logical, save :: SIM_uses_StickyPower
109  logical, save :: SIM_uses_GayBerne
98    logical, save :: SIM_uses_EAM
111  logical, save :: SIM_uses_Shapes
112  logical, save :: SIM_uses_FLARB
113  logical, save :: SIM_uses_RF
99    logical, save :: SIM_requires_postpair_calc
100    logical, save :: SIM_requires_prepair_calc
101    logical, save :: SIM_uses_PBC
117  logical, save :: SIM_uses_molecular_cutoffs
102  
103 +  integer, save :: electrostaticSummationMethod
104  
105    public :: init_FF
106 +  public :: setDefaultCutoffs
107    public :: do_force_loop
108 < !  public :: setRlistDF
109 <  !public :: addInteraction
110 <  !public :: setInteractionHash
111 <  !public :: getInteractionHash
112 <  public :: createInteractionMap
113 <  public :: createGroupCutoffs
108 >  public :: createInteractionHash
109 >  public :: createGtypeCutoffMap
110 >  public :: getStickyCut
111 >  public :: getStickyPowerCut
112 >  public :: getGayBerneCut
113 >  public :: getEAMCut
114 >  public :: getShapeCut
115  
116   #ifdef PROFILE
117    public :: getforcetime
# Line 133 | Line 120 | module doForces
120    integer :: nLoops
121   #endif
122    
123 < !! Variables for cutoff mapping and interaction mapping
124 < ! Bit hash to determine pair-pair interactions.
125 <  integer, dimension(:,:),allocatable :: InteractionHash
126 < !! Cuttoffs in OOPSE are handled on a Group-Group pair basis.
127 < ! Largest cutoff for atypes for all potentials
128 <  real(kind=dp), dimension(:), allocatable :: atypeMaxCuttoff
142 < ! Largest cutoff for groups
143 <  real(kind=dp), dimension(:), allocatable :: groupMaxCutoff
144 < ! Group to Gtype transformation Map
145 <  integer,dimension(:), allocatable :: groupToGtype
146 < ! Group Type Max Cutoff
147 <  real(kind=dp), dimension(:), allocatable :: gtypeMaxCutoff
148 < ! GroupType definition
149 <  type ::gtype
150 <     real(kind=dp) :: rcut ! Group Cutoff
151 <     real(kind=dp) :: rcutsq ! Group Cutoff Squared
152 <     real(kind=dp) :: rlistsq ! List cutoff Squared    
153 <  end type gtype
123 >  !! Variables for cutoff mapping and interaction mapping
124 >  ! Bit hash to determine pair-pair interactions.
125 >  integer, dimension(:,:), allocatable :: InteractionHash
126 >  real(kind=dp), dimension(:), allocatable :: atypeMaxCutoff
127 >  real(kind=dp), dimension(:), allocatable, target :: groupMaxCutoffRow
128 >  real(kind=dp), dimension(:), pointer :: groupMaxCutoffCol
129  
130 <  type(gtype), dimension(:,:), allocatable :: gtypeCutoffMap
130 >  integer, dimension(:), allocatable, target :: groupToGtypeRow
131 >  integer, dimension(:), pointer :: groupToGtypeCol => null()
132 >
133 >  real(kind=dp), dimension(:), allocatable,target :: gtypeMaxCutoffRow
134 >  real(kind=dp), dimension(:), pointer :: gtypeMaxCutoffCol
135 >  type ::gtypeCutoffs
136 >     real(kind=dp) :: rcut
137 >     real(kind=dp) :: rcutsq
138 >     real(kind=dp) :: rlistsq
139 >  end type gtypeCutoffs
140 >  type(gtypeCutoffs), dimension(:,:), allocatable :: gtypeCutoffMap
141 >
142 >  integer, save :: cutoffPolicy = TRADITIONAL_CUTOFF_POLICY
143 >  real(kind=dp),save :: defaultRcut, defaultRsw, defaultRlist
144 >  real(kind=dp),save :: listSkin
145    
146   contains
147  
148 <
160 <  subroutine createInteractionMap(status)
148 >  subroutine createInteractionHash(status)
149      integer :: nAtypes
150      integer, intent(out) :: status
151      integer :: i
152      integer :: j
153 <    integer :: ihash
166 <    real(kind=dp) :: myRcut
153 >    integer :: iHash
154      !! Test Types
155      logical :: i_is_LJ
156      logical :: i_is_Elect
# Line 179 | Line 166 | contains
166      logical :: j_is_GB
167      logical :: j_is_EAM
168      logical :: j_is_Shape
169 <    
169 >    real(kind=dp) :: myRcut
170 >
171      status = 0  
172  
173      if (.not. associated(atypes)) then
174 <       call handleError("atype", "atypes was not present before call of createDefaultInteractionHash!")
174 >       call handleError("atype", "atypes was not present before call of createInteractionHash!")
175         status = -1
176         return
177      endif
# Line 197 | Line 185 | contains
185  
186      if (.not. allocated(InteractionHash)) then
187         allocate(InteractionHash(nAtypes,nAtypes))
188 +    else
189 +       deallocate(InteractionHash)
190 +       allocate(InteractionHash(nAtypes,nAtypes))
191      endif
192 +
193 +    if (.not. allocated(atypeMaxCutoff)) then
194 +       allocate(atypeMaxCutoff(nAtypes))
195 +    else
196 +       deallocate(atypeMaxCutoff)
197 +       allocate(atypeMaxCutoff(nAtypes))
198 +    endif
199          
200      do i = 1, nAtypes
201         call getElementProperty(atypes, i, "is_LennardJones", i_is_LJ)
# Line 257 | Line 255 | contains
255  
256      end do
257  
258 <    haveInteractionMap = .true.
259 <  end subroutine createInteractionMap
258 >    haveInteractionHash = .true.
259 >  end subroutine createInteractionHash
260  
261 <  subroutine createGroupCutoffs(skinThickness,defaultrList,stat)
264 <    real(kind=dp), intent(in), optional :: defaultRList
265 <    real(kind-dp), intent(in), :: skinThickenss
266 <  ! Query each potential and return the cutoff for that potential. We
267 <  ! build the neighbor list based on the largest cutoff value for that
268 <  ! atype. Each potential can decide whether to calculate the force for
269 <  ! that atype based upon it's own cutoff.
270 <  
261 >  subroutine createGtypeCutoffMap(stat)
262  
263 <    real(kind=dp), intent(in), optional :: defaultRCut, defaultSkinThickness
263 >    integer, intent(out), optional :: stat
264 >    logical :: i_is_LJ
265 >    logical :: i_is_Elect
266 >    logical :: i_is_Sticky
267 >    logical :: i_is_StickyP
268 >    logical :: i_is_GB
269 >    logical :: i_is_EAM
270 >    logical :: i_is_Shape
271 >    logical :: GtypeFound
272  
273 <    integer :: iMap
274 <    integer :: map_i,map_j
275 <    real(kind=dp) :: thisRCut = 0.0_dp
276 <    real(kind=dp) :: actualCutoff = 0.0_dp
277 <    integer, intent(out) :: stat
278 <    integer :: nAtypes
279 <    integer :: myStatus
273 >    integer :: myStatus, nAtypes,  i, j, istart, iend, jstart, jend
274 >    integer :: n_in_i, me_i, ia, g, atom1, ja, n_in_j,me_j
275 >    integer :: nGroupsInRow
276 >    integer :: nGroupsInCol
277 >    integer :: nGroupTypesRow,nGroupTypesCol
278 >    real(kind=dp):: thisSigma, bigSigma, thisRcut, tradRcut, tol, skin
279 >    real(kind=dp) :: biggestAtypeCutoff
280  
281      stat = 0
282 <    if (.not. haveInteractionMap) then
283 <
285 <       call createInteractionMap(myStatus)
286 <
282 >    if (.not. haveInteractionHash) then
283 >       call createInteractionHash(myStatus)      
284         if (myStatus .ne. 0) then
285 <          write(default_error, *) 'createInteractionMap failed in doForces!'
285 >          write(default_error, *) 'createInteractionHash failed in doForces!'
286            stat = -1
287            return
288         endif
289      endif
290 <
290 > #ifdef IS_MPI
291 >    nGroupsInRow = getNgroupsInRow(plan_group_row)
292 >    nGroupsInCol = getNgroupsInCol(plan_group_col)
293 > #endif
294      nAtypes = getSize(atypes)
295 <    !! If we pass a default rcut, set all atypes to that cutoff distance
296 <    if(present(defaultRList)) then
297 <       InteractionMap(:,:)%rCut = defaultRCut
298 <       InteractionMap(:,:)%rCutSq = defaultRCut*defaultRCut
299 <       InteractionMap(:,:)%rListSq = (defaultRCut+defaultSkinThickness)**2
300 <       haveRlist = .true.
301 <       return
302 <    end if
303 <
304 <    do map_i = 1,nAtypes
305 <       do map_j = map_i,nAtypes
306 <          iMap = InteractionMap(map_i, map_j)%InteractionHash
295 > ! Set all of the initial cutoffs to zero.
296 >    atypeMaxCutoff = 0.0_dp
297 >    do i = 1, nAtypes
298 >       if (SimHasAtype(i)) then    
299 >          call getElementProperty(atypes, i, "is_LennardJones", i_is_LJ)
300 >          call getElementProperty(atypes, i, "is_Electrostatic", i_is_Elect)
301 >          call getElementProperty(atypes, i, "is_Sticky", i_is_Sticky)
302 >          call getElementProperty(atypes, i, "is_StickyPower", i_is_StickyP)
303 >          call getElementProperty(atypes, i, "is_GayBerne", i_is_GB)
304 >          call getElementProperty(atypes, i, "is_EAM", i_is_EAM)
305 >          call getElementProperty(atypes, i, "is_Shape", i_is_Shape)
306            
307 <          if ( iand(iMap, LJ_PAIR).ne.0 ) then
308 <             ! thisRCut = getLJCutOff(map_i,map_j)
309 <             if (thisRcut > actualCutoff) actualCutoff = thisRcut
310 <          endif
311 <          
312 <          if ( iand(iMap, ELECTROSTATIC_PAIR).ne.0 ) then
313 <             ! thisRCut = getElectrostaticCutOff(map_i,map_j)
314 <             if (thisRcut > actualCutoff) actualCutoff = thisRcut
307 >
308 >          if (haveDefaultCutoffs) then
309 >             atypeMaxCutoff(i) = defaultRcut
310 >          else
311 >             if (i_is_LJ) then          
312 >                thisRcut = getSigma(i) * 2.5_dp
313 >                if (thisRCut .gt. atypeMaxCutoff(i)) atypeMaxCutoff(i) = thisRCut
314 >             endif
315 >             if (i_is_Elect) then
316 >                thisRcut = defaultRcut
317 >                if (thisRCut .gt. atypeMaxCutoff(i)) atypeMaxCutoff(i) = thisRCut
318 >             endif
319 >             if (i_is_Sticky) then
320 >                thisRcut = getStickyCut(i)
321 >                if (thisRCut .gt. atypeMaxCutoff(i)) atypeMaxCutoff(i) = thisRCut
322 >             endif
323 >             if (i_is_StickyP) then
324 >                thisRcut = getStickyPowerCut(i)
325 >                if (thisRCut .gt. atypeMaxCutoff(i)) atypeMaxCutoff(i) = thisRCut
326 >             endif
327 >             if (i_is_GB) then
328 >                thisRcut = getGayBerneCut(i)
329 >                if (thisRCut .gt. atypeMaxCutoff(i)) atypeMaxCutoff(i) = thisRCut
330 >             endif
331 >             if (i_is_EAM) then
332 >                thisRcut = getEAMCut(i)
333 >                if (thisRCut .gt. atypeMaxCutoff(i)) atypeMaxCutoff(i) = thisRCut
334 >             endif
335 >             if (i_is_Shape) then
336 >                thisRcut = getShapeCut(i)
337 >                if (thisRCut .gt. atypeMaxCutoff(i)) atypeMaxCutoff(i) = thisRCut
338 >             endif
339            endif
340            
341 <          if ( iand(iMap, STICKY_PAIR).ne.0 ) then
342 <             ! thisRCut = getStickyCutOff(map_i,map_j)
343 <              if (thisRcut > actualCutoff) actualCutoff = thisRcut
344 <           endif
322 <          
323 <           if ( iand(iMap, STICKYPOWER_PAIR).ne.0 ) then
324 <              ! thisRCut = getStickyPowerCutOff(map_i,map_j)
325 <              if (thisRcut > actualCutoff) actualCutoff = thisRcut
326 <           endif
327 <          
328 <           if ( iand(iMap, GAYBERNE_PAIR).ne.0 ) then
329 <              ! thisRCut = getGayberneCutOff(map_i,map_j)
330 <              if (thisRcut > actualCutoff) actualCutoff = thisRcut
331 <           endif
332 <          
333 <           if ( iand(iMap, GAYBERNE_LJ).ne.0 ) then
334 < !              thisRCut = getGaybrneLJCutOff(map_i,map_j)
335 <              if (thisRcut > actualCutoff) actualCutoff = thisRcut
336 <           endif
337 <          
338 <           if ( iand(iMap, EAM_PAIR).ne.0 ) then      
339 < !              thisRCut = getEAMCutOff(map_i,map_j)
340 <              if (thisRcut > actualCutoff) actualCutoff = thisRcut
341 <           endif
342 <          
343 <           if ( iand(iMap, SHAPE_PAIR).ne.0 ) then      
344 < !              thisRCut = getShapeCutOff(map_i,map_j)
345 <              if (thisRcut > actualCutoff) actualCutoff = thisRcut
346 <           endif
347 <          
348 <           if ( iand(iMap, SHAPE_LJ).ne.0 ) then      
349 < !              thisRCut = getShapeLJCutOff(map_i,map_j)
350 <              if (thisRcut > actualCutoff) actualCutoff = thisRcut
351 <           endif
352 <           InteractionMap(map_i, map_j)%rCut = actualCutoff
353 <           InteractionMap(map_i, map_j)%rCutSq = actualCutoff * actualCutoff
354 <           InteractionMap(map_i, map_j)%rListSq = (actualCutoff + skinThickness)**2
341 >          
342 >          if (atypeMaxCutoff(i).gt.biggestAtypeCutoff) then
343 >             biggestAtypeCutoff = atypeMaxCutoff(i)
344 >          endif
345  
346 <           InteractionMap(map_j, map_i)%rCut = InteractionMap(map_i, map_j)%rCut
347 <           InteractionMap(map_j, map_i)%rCutSq = InteractionMap(map_i, map_j)%rCutSq
348 <           InteractionMap(map_j, map_i)%rListSq = InteractionMap(map_i, map_j)%rListSq
359 <        end do
360 <     end do
361 <     ! now the groups
346 >       endif
347 >    enddo
348 >  
349  
350 +    
351 +    istart = 1
352 +    jstart = 1
353 + #ifdef IS_MPI
354 +    iend = nGroupsInRow
355 +    jend = nGroupsInCol
356 + #else
357 +    iend = nGroups
358 +    jend = nGroups
359 + #endif
360 +    
361 +    !! allocate the groupToGtype and gtypeMaxCutoff here.
362 +    if(.not.allocated(groupToGtypeRow)) then
363 +     !  allocate(groupToGtype(iend))
364 +       allocate(groupToGtypeRow(iend))
365 +    else
366 +       deallocate(groupToGtypeRow)
367 +       allocate(groupToGtypeRow(iend))
368 +    endif
369 +    if(.not.allocated(groupMaxCutoffRow)) then
370 +       allocate(groupMaxCutoffRow(iend))
371 +    else
372 +       deallocate(groupMaxCutoffRow)
373 +       allocate(groupMaxCutoffRow(iend))
374 +    end if
375  
376 +    if(.not.allocated(gtypeMaxCutoffRow)) then
377 +       allocate(gtypeMaxCutoffRow(iend))
378 +    else
379 +       deallocate(gtypeMaxCutoffRow)
380 +       allocate(gtypeMaxCutoffRow(iend))
381 +    endif
382  
383 <     haveRlist = .true.
384 <   end subroutine createGroupCutoffs
383 >
384 > #ifdef IS_MPI
385 >       ! We only allocate new storage if we are in MPI because Ncol /= Nrow
386 >    if(.not.associated(groupToGtypeCol)) then
387 >       allocate(groupToGtypeCol(jend))
388 >    else
389 >       deallocate(groupToGtypeCol)
390 >       allocate(groupToGtypeCol(jend))
391 >    end if
392 >
393 >    if(.not.associated(groupToGtypeCol)) then
394 >       allocate(groupToGtypeCol(jend))
395 >    else
396 >       deallocate(groupToGtypeCol)
397 >       allocate(groupToGtypeCol(jend))
398 >    end if
399 >    if(.not.associated(gtypeMaxCutoffCol)) then
400 >       allocate(gtypeMaxCutoffCol(jend))
401 >    else
402 >       deallocate(gtypeMaxCutoffCol)      
403 >       allocate(gtypeMaxCutoffCol(jend))
404 >    end if
405 >
406 >       groupMaxCutoffCol = 0.0_dp
407 >       gtypeMaxCutoffCol = 0.0_dp
408 >
409 > #endif
410 >       groupMaxCutoffRow = 0.0_dp
411 >       gtypeMaxCutoffRow = 0.0_dp
412 >
413 >
414 >    !! first we do a single loop over the cutoff groups to find the
415 >    !! largest cutoff for any atypes present in this group.  We also
416 >    !! create gtypes at this point.
417 >    
418 >    tol = 1.0d-6
419 >    nGroupTypesRow = 0
420 >
421 >    do i = istart, iend      
422 >       n_in_i = groupStartRow(i+1) - groupStartRow(i)
423 >       groupMaxCutoffRow(i) = 0.0_dp
424 >       do ia = groupStartRow(i), groupStartRow(i+1)-1
425 >          atom1 = groupListRow(ia)
426 > #ifdef IS_MPI
427 >          me_i = atid_row(atom1)
428 > #else
429 >          me_i = atid(atom1)
430 > #endif          
431 >          if (atypeMaxCutoff(me_i).gt.groupMaxCutoffRow(i)) then
432 >             groupMaxCutoffRow(i)=atypeMaxCutoff(me_i)
433 >          endif          
434 >       enddo
435 >
436 >       if (nGroupTypesRow.eq.0) then
437 >          nGroupTypesRow = nGroupTypesRow + 1
438 >          gtypeMaxCutoffRow(nGroupTypesRow) = groupMaxCutoffRow(i)
439 >          groupToGtypeRow(i) = nGroupTypesRow
440 >       else
441 >          GtypeFound = .false.
442 >          do g = 1, nGroupTypesRow
443 >             if ( abs(groupMaxCutoffRow(i) - gtypeMaxCutoffRow(g)).lt.tol) then
444 >                groupToGtypeRow(i) = g
445 >                GtypeFound = .true.
446 >             endif
447 >          enddo
448 >          if (.not.GtypeFound) then            
449 >             nGroupTypesRow = nGroupTypesRow + 1
450 >             gtypeMaxCutoffRow(nGroupTypesRow) = groupMaxCutoffRow(i)
451 >             groupToGtypeRow(i) = nGroupTypesRow
452 >          endif
453 >       endif
454 >    enddo    
455 >
456 > #ifdef IS_MPI
457 >    do j = jstart, jend      
458 >       n_in_j = groupStartCol(j+1) - groupStartCol(j)
459 >       groupMaxCutoffCol(j) = 0.0_dp
460 >       do ja = groupStartCol(j), groupStartCol(j+1)-1
461 >          atom1 = groupListCol(ja)
462 >
463 >          me_j = atid_col(atom1)
464 >
465 >          if (atypeMaxCutoff(me_j).gt.groupMaxCutoffCol(j)) then
466 >             groupMaxCutoffCol(j)=atypeMaxCutoff(me_j)
467 >          endif          
468 >       enddo
469  
470 +       if (nGroupTypesCol.eq.0) then
471 +          nGroupTypesCol = nGroupTypesCol + 1
472 +          gtypeMaxCutoffCol(nGroupTypesCol) = groupMaxCutoffCol(j)
473 +          groupToGtypeCol(j) = nGroupTypesCol
474 +       else
475 +          GtypeFound = .false.
476 +          do g = 1, nGroupTypesCol
477 +             if ( abs(groupMaxCutoffCol(j) - gtypeMaxCutoffCol(g)).lt.tol) then
478 +                groupToGtypeCol(j) = g
479 +                GtypeFound = .true.
480 +             endif
481 +          enddo
482 +          if (.not.GtypeFound) then            
483 +             nGroupTypesCol = nGroupTypesCol + 1
484 +             gtypeMaxCutoffCol(nGroupTypesCol) = groupMaxCutoffCol(j)
485 +             groupToGtypeCol(j) = nGroupTypesCol
486 +          endif
487 +       endif
488 +    enddo    
489 +
490 + #else
491 + ! Set pointers to information we just found
492 +    nGroupTypesCol = nGroupTypesRow
493 +    groupToGtypeCol => groupToGtypeRow
494 +    gtypeMaxCutoffCol => gtypeMaxCutoffRow
495 +    groupMaxCutoffCol => groupMaxCutoffRow
496 + #endif
497 +
498 +
499 +
500 +
501 +
502 +    !! allocate the gtypeCutoffMap here.
503 +    allocate(gtypeCutoffMap(nGroupTypesRow,nGroupTypesCol))
504 +    !! then we do a double loop over all the group TYPES to find the cutoff
505 +    !! map between groups of two types
506 +    tradRcut = max(maxval(gtypeMaxCutoffRow),maxval(gtypeMaxCutoffCol))
507 +
508 +    do i = 1, nGroupTypesRow
509 +       do j = 1, nGroupTypesCol
510 +      
511 +          select case(cutoffPolicy)
512 +          case(TRADITIONAL_CUTOFF_POLICY)
513 +             thisRcut = tradRcut
514 +          case(MIX_CUTOFF_POLICY)
515 +             thisRcut = 0.5_dp * (gtypeMaxCutoffRow(i) + gtypeMaxCutoffCol(j))
516 +          case(MAX_CUTOFF_POLICY)
517 +             thisRcut = max(gtypeMaxCutoffRow(i), gtypeMaxCutoffCol(j))
518 +          case default
519 +             call handleError("createGtypeCutoffMap", "Unknown Cutoff Policy")
520 +             return
521 +          end select
522 +          gtypeCutoffMap(i,j)%rcut = thisRcut
523 +          gtypeCutoffMap(i,j)%rcutsq = thisRcut*thisRcut
524 +          skin = defaultRlist - defaultRcut
525 +          listSkin = skin ! set neighbor list skin thickness
526 +          gtypeCutoffMap(i,j)%rlistsq = (thisRcut + skin)**2
527 +
528 +          ! sanity check
529 +
530 +          if (haveDefaultCutoffs) then
531 +             if (abs(gtypeCutoffMap(i,j)%rcut - defaultRcut).gt.0.0001) then
532 +                call handleError("createGtypeCutoffMap", "user-specified rCut does not match computed group Cutoff")
533 +             endif
534 +          endif
535 +       enddo
536 +    enddo
537 +    if(allocated(gtypeMaxCutoffRow)) deallocate(gtypeMaxCutoffRow)
538 +    if(allocated(groupMaxCutoffRow)) deallocate(groupMaxCutoffRow)
539 +    if(allocated(atypeMaxCutoff)) deallocate(atypeMaxCutoff)
540 + #ifdef IS_MPI
541 +    if(associated(groupMaxCutoffCol)) deallocate(groupMaxCutoffCol)
542 +    if(associated(gtypeMaxCutoffCol)) deallocate(gtypeMaxCutoffCol)
543 + #endif
544 +    groupMaxCutoffCol => null()
545 +    gtypeMaxCutoffCol => null()
546 +    
547 +    haveGtypeCutoffMap = .true.
548 +   end subroutine createGtypeCutoffMap
549 +
550 +   subroutine setDefaultCutoffs(defRcut, defRsw, defRlist, cutPolicy)
551 +     real(kind=dp),intent(in) :: defRcut, defRsw, defRlist
552 +     integer, intent(in) :: cutPolicy
553 +
554 +     defaultRcut = defRcut
555 +     defaultRsw = defRsw
556 +     defaultRlist = defRlist
557 +     cutoffPolicy = cutPolicy
558 +
559 +     haveDefaultCutoffs = .true.
560 +   end subroutine setDefaultCutoffs
561 +
562 +   subroutine setCutoffPolicy(cutPolicy)
563 +
564 +     integer, intent(in) :: cutPolicy
565 +     cutoffPolicy = cutPolicy
566 +     call createGtypeCutoffMap()
567 +   end subroutine setCutoffPolicy
568 +    
569 +    
570    subroutine setSimVariables()
571      SIM_uses_DirectionalAtoms = SimUsesDirectionalAtoms()
370    SIM_uses_LennardJones = SimUsesLennardJones()
371    SIM_uses_Electrostatics = SimUsesElectrostatics()
372    SIM_uses_Charges = SimUsesCharges()
373    SIM_uses_Dipoles = SimUsesDipoles()
374    SIM_uses_Sticky = SimUsesSticky()
375    SIM_uses_StickyPower = SimUsesStickyPower()
376    SIM_uses_GayBerne = SimUsesGayBerne()
572      SIM_uses_EAM = SimUsesEAM()
378    SIM_uses_Shapes = SimUsesShapes()
379    SIM_uses_FLARB = SimUsesFLARB()
380    SIM_uses_RF = SimUsesRF()
573      SIM_requires_postpair_calc = SimRequiresPostpairCalc()
574      SIM_requires_prepair_calc = SimRequiresPrepairCalc()
575      SIM_uses_PBC = SimUsesPBC()
# Line 394 | Line 586 | contains
586  
587      error = 0
588  
589 <    if (.not. haveInteractionMap) then
398 <      
589 >    if (.not. haveInteractionHash) then      
590         myStatus = 0      
591 <       call createInteractionMap(myStatus)
401 <      
591 >       call createInteractionHash(myStatus)      
592         if (myStatus .ne. 0) then
593 <          write(default_error, *) 'createInteractionMap failed in doForces!'
593 >          write(default_error, *) 'createInteractionHash failed in doForces!'
594            error = -1
595            return
596         endif
597      endif
598  
599 +    if (.not. haveGtypeCutoffMap) then        
600 +       myStatus = 0      
601 +       call createGtypeCutoffMap(myStatus)      
602 +       if (myStatus .ne. 0) then
603 +          write(default_error, *) 'createGtypeCutoffMap failed in doForces!'
604 +          error = -1
605 +          return
606 +       endif
607 +    endif
608 +
609      if (.not. haveSIMvariables) then
610         call setSimVariables()
611      endif
612  
613 <    if (.not. haveRlist) then
614 <       write(default_error, *) 'rList has not been set in doForces!'
615 <       error = -1
616 <       return
617 <    endif
613 >  !  if (.not. haveRlist) then
614 >  !     write(default_error, *) 'rList has not been set in doForces!'
615 >  !     error = -1
616 >  !     return
617 >  !  endif
618  
619      if (.not. haveNeighborList) then
620         write(default_error, *) 'neighbor list has not been initialized in doForces!'
# Line 439 | Line 639 | contains
639    end subroutine doReadyCheck
640  
641  
642 <  subroutine init_FF(use_RF_c, thisStat)
642 >  subroutine init_FF(thisESM, thisStat)
643  
644 <    logical, intent(in) :: use_RF_c
445 <
644 >    integer, intent(in) :: thisESM
645      integer, intent(out) :: thisStat  
646      integer :: my_status, nMatches
647      integer, pointer :: MatchList(:) => null()
# Line 451 | Line 650 | contains
650      !! assume things are copacetic, unless they aren't
651      thisStat = 0
652  
653 <    !! Fortran's version of a cast:
455 <    FF_uses_RF = use_RF_c
653 >    electrostaticSummationMethod = thisESM
654  
655      !! init_FF is called *after* all of the atom types have been
656      !! defined in atype_module using the new_atype subroutine.
# Line 461 | Line 659 | contains
659      !! interactions are used by the force field.    
660  
661      FF_uses_DirectionalAtoms = .false.
464    FF_uses_LennardJones = .false.
465    FF_uses_Electrostatics = .false.
466    FF_uses_Charges = .false.    
662      FF_uses_Dipoles = .false.
468    FF_uses_Sticky = .false.
469    FF_uses_StickyPower = .false.
663      FF_uses_GayBerne = .false.
664      FF_uses_EAM = .false.
472    FF_uses_Shapes = .false.
473    FF_uses_FLARB = .false.
665  
666      call getMatchingElementList(atypes, "is_Directional", .true., &
667           nMatches, MatchList)
668      if (nMatches .gt. 0) FF_uses_DirectionalAtoms = .true.
669  
479    call getMatchingElementList(atypes, "is_LennardJones", .true., &
480         nMatches, MatchList)
481    if (nMatches .gt. 0) FF_uses_LennardJones = .true.
482
483    call getMatchingElementList(atypes, "is_Electrostatic", .true., &
484         nMatches, MatchList)
485    if (nMatches .gt. 0) then
486       FF_uses_Electrostatics = .true.
487    endif
488
489    call getMatchingElementList(atypes, "is_Charge", .true., &
490         nMatches, MatchList)
491    if (nMatches .gt. 0) then
492       FF_uses_Charges = .true.  
493       FF_uses_Electrostatics = .true.
494    endif
495
670      call getMatchingElementList(atypes, "is_Dipole", .true., &
671           nMatches, MatchList)
672 <    if (nMatches .gt. 0) then
499 <       FF_uses_Dipoles = .true.
500 <       FF_uses_Electrostatics = .true.
501 <       FF_uses_DirectionalAtoms = .true.
502 <    endif
503 <
504 <    call getMatchingElementList(atypes, "is_Quadrupole", .true., &
505 <         nMatches, MatchList)
506 <    if (nMatches .gt. 0) then
507 <       FF_uses_Quadrupoles = .true.
508 <       FF_uses_Electrostatics = .true.
509 <       FF_uses_DirectionalAtoms = .true.
510 <    endif
511 <
512 <    call getMatchingElementList(atypes, "is_Sticky", .true., nMatches, &
513 <         MatchList)
514 <    if (nMatches .gt. 0) then
515 <       FF_uses_Sticky = .true.
516 <       FF_uses_DirectionalAtoms = .true.
517 <    endif
518 <
519 <    call getMatchingElementList(atypes, "is_StickyPower", .true., nMatches, &
520 <         MatchList)
521 <    if (nMatches .gt. 0) then
522 <       FF_uses_StickyPower = .true.
523 <       FF_uses_DirectionalAtoms = .true.
524 <    endif
672 >    if (nMatches .gt. 0) FF_uses_Dipoles = .true.
673      
674      call getMatchingElementList(atypes, "is_GayBerne", .true., &
675           nMatches, MatchList)
676 <    if (nMatches .gt. 0) then
529 <       FF_uses_GayBerne = .true.
530 <       FF_uses_DirectionalAtoms = .true.
531 <    endif
676 >    if (nMatches .gt. 0) FF_uses_GayBerne = .true.
677  
678      call getMatchingElementList(atypes, "is_EAM", .true., nMatches, MatchList)
679      if (nMatches .gt. 0) FF_uses_EAM = .true.
680  
536    call getMatchingElementList(atypes, "is_Shape", .true., &
537         nMatches, MatchList)
538    if (nMatches .gt. 0) then
539       FF_uses_Shapes = .true.
540       FF_uses_DirectionalAtoms = .true.
541    endif
681  
543    call getMatchingElementList(atypes, "is_FLARB", .true., &
544         nMatches, MatchList)
545    if (nMatches .gt. 0) FF_uses_FLARB = .true.
546
547    !! Assume sanity (for the sake of argument)
682      haveSaneForceField = .true.
683  
684 <    !! check to make sure the FF_uses_RF setting makes sense
684 >    !! check to make sure the reaction field setting makes sense
685  
686 <    if (FF_uses_dipoles) then
687 <       if (FF_uses_RF) then
686 >    if (FF_uses_Dipoles) then
687 >       if (electrostaticSummationMethod == REACTION_FIELD) then
688            dielect = getDielect()
689            call initialize_rf(dielect)
690         endif
691      else
692 <       if (FF_uses_RF) then          
692 >       if (electrostaticSummationMethod == REACTION_FIELD) then
693            write(default_error,*) 'Using Reaction Field with no dipoles?  Huh?'
694            thisStat = -1
695            haveSaneForceField = .false.
# Line 563 | Line 697 | contains
697         endif
698      endif
699  
566    !sticky module does not contain check_sticky_FF anymore
567    !if (FF_uses_sticky) then
568    !   call check_sticky_FF(my_status)
569    !   if (my_status /= 0) then
570    !      thisStat = -1
571    !      haveSaneForceField = .false.
572    !      return
573    !   end if
574    !endif
575
700      if (FF_uses_EAM) then
701         call init_EAM_FF(my_status)
702         if (my_status /= 0) then
# Line 592 | Line 716 | contains
716         endif
717      endif
718  
595    if (FF_uses_GayBerne .and. FF_uses_LennardJones) then
596    endif
597
719      if (.not. haveNeighborList) then
720         !! Create neighbor lists
721         call expandNeighborList(nLocal, my_status)
# Line 628 | Line 749 | contains
749  
750      !! Stress Tensor
751      real( kind = dp), dimension(9) :: tau  
752 <    real ( kind = dp ) :: pot
752 >    real ( kind = dp ),dimension(POT_ARRAY_SIZE) :: pot
753      logical ( kind = 2) :: do_pot_c, do_stress_c
754      logical :: do_pot
755      logical :: do_stress
756      logical :: in_switching_region
757   #ifdef IS_MPI
758 <    real( kind = DP ) :: pot_local
758 >    real( kind = DP ), dimension(POT_ARRAY_SIZE) :: pot_local
759      integer :: nAtomsInRow
760      integer :: nAtomsInCol
761      integer :: nprocs
# Line 658 | Line 779 | contains
779      integer :: localError
780      integer :: propPack_i, propPack_j
781      integer :: loopStart, loopEnd, loop
782 <    integer :: iMap
783 <    real(kind=dp) :: listSkin = 1.0  
782 >    integer :: iHash
783 >  
784  
785      !! initialize local variables  
786  
# Line 750 | Line 871 | contains
871   #endif
872         outer: do i = istart, iend
873  
753 #ifdef IS_MPI
754             me_i = atid_row(i)
755 #else
756             me_i = atid(i)
757 #endif
758
874            if (update_nlist) point(i) = nlist + 1
875  
876            n_in_i = groupStartRow(i+1) - groupStartRow(i)
# Line 790 | Line 905 | contains
905               me_j = atid(j)
906               call get_interatomic_vector(q_group(:,i), &
907                    q_group(:,j), d_grp, rgrpsq)
908 < #endif
908 > #endif      
909  
910 <             if (rgrpsq < InteractionMap(me_i,me_j)%rListsq) then
910 >             if (rgrpsq < gtypeCutoffMap(groupToGtypeRow(i),groupToGtypeCol(j))%rListsq) then
911                  if (update_nlist) then
912                     nlist = nlist + 1
913  
# Line 913 | Line 1028 | contains
1028                  endif
1029               end if
1030            enddo
1031 +
1032         enddo outer
1033  
1034         if (update_nlist) then
# Line 992 | Line 1108 | contains
1108  
1109      if (FF_RequiresPostpairCalc() .and. SIM_requires_postpair_calc) then
1110  
1111 <       if (FF_uses_RF .and. SIM_uses_RF) then
1111 >       if (electrostaticSummationMethod == REACTION_FIELD) then
1112  
1113   #ifdef IS_MPI
1114            call scatter(rf_Row,rf,plan_atom_row_3d)
# Line 1010 | Line 1126 | contains
1126   #else
1127               me_i = atid(i)
1128   #endif
1129 <             iMap = InteractionHash(me_i,me_j)
1129 >             iHash = InteractionHash(me_i,me_j)
1130              
1131 <             if ( iand(iMap, ELECTROSTATIC_PAIR).ne.0 ) then
1131 >             if ( iand(iHash, ELECTROSTATIC_PAIR).ne.0 ) then
1132  
1133                  mu_i = getDipoleMoment(me_i)
1134  
# Line 1023 | Line 1139 | contains
1139                  !! potential and torques:
1140                  call reaction_field_final(i, mu_i, eFrame, rfpot, t, do_pot)
1141   #ifdef IS_MPI
1142 <                pot_local = pot_local + rfpot
1142 >                pot_local(RF_POT) = pot_local(RF_POT) + rfpot
1143   #else
1144 <                pot = pot + rfpot
1144 >                pot(RF_POT) = pot(RF_POT) + rfpot
1145  
1146   #endif
1147               endif
# Line 1037 | Line 1153 | contains
1153   #ifdef IS_MPI
1154  
1155      if (do_pot) then
1156 <       pot = pot + pot_local
1156 >       pot(1:SIZE_POT_ARRAY) = pot(1:SIZE_POT_ARRAY) &
1157 >            + pot_local(1:SIZE_POT_ARRAY)
1158         !! we assume the c code will do the allreduce to get the total potential
1159         !! we could do it right here if we needed to...
1160      endif
# Line 1063 | Line 1180 | contains
1180    subroutine do_pair(i, j, rijsq, d, sw, do_pot, &
1181         eFrame, A, f, t, pot, vpair, fpair)
1182  
1183 <    real( kind = dp ) :: pot, vpair, sw
1183 >    real( kind = dp ) :: vpair, sw
1184 >    real( kind = dp ), dimension(POT_ARRAY_SIZE) :: pot
1185      real( kind = dp ), dimension(3) :: fpair
1186      real( kind = dp ), dimension(nLocal)   :: mfact
1187      real( kind = dp ), dimension(9,nLocal) :: eFrame
# Line 1076 | Line 1194 | contains
1194      real ( kind = dp ), intent(inout) :: rijsq
1195      real ( kind = dp )                :: r
1196      real ( kind = dp ), intent(inout) :: d(3)
1079    real ( kind = dp ) :: ebalance
1197      integer :: me_i, me_j
1198  
1199 <    integer :: iMap
1199 >    integer :: iHash
1200  
1201      r = sqrt(rijsq)
1202      vpair = 0.0d0
# Line 1093 | Line 1210 | contains
1210      me_j = atid(j)
1211   #endif
1212  
1213 <    iMap = InteractionMap(me_i, me_j)%InteractionHash
1213 >    iHash = InteractionHash(me_i, me_j)
1214  
1215 <    if ( iand(iMap, LJ_PAIR).ne.0 ) then
1216 <       call do_lj_pair(i, j, d, r, rijsq, sw, vpair, fpair, pot, f, do_pot)
1215 >    if ( iand(iHash, LJ_PAIR).ne.0 ) then
1216 >       call do_lj_pair(i, j, d, r, rijsq, sw, vpair, fpair, pot(LJ_POT), f, do_pot)
1217      endif
1218  
1219 <    if ( iand(iMap, ELECTROSTATIC_PAIR).ne.0 ) then
1219 >    if ( iand(iHash, ELECTROSTATIC_PAIR).ne.0 ) then
1220         call doElectrostaticPair(i, j, d, r, rijsq, sw, vpair, fpair, &
1221 <            pot, eFrame, f, t, do_pot)
1221 >            pot(ELECTROSTATIC_POT), eFrame, f, t, do_pot)
1222  
1223 <       if (FF_uses_RF .and. SIM_uses_RF) then
1223 >       if (electrostaticSummationMethod == REACTION_FIELD) then
1224  
1225            ! CHECK ME (RF needs to know about all electrostatic types)
1226            call accumulate_rf(i, j, r, eFrame, sw)
# Line 1112 | Line 1229 | contains
1229  
1230      endif
1231  
1232 <    if ( iand(iMap, STICKY_PAIR).ne.0 ) then
1232 >    if ( iand(iHash, STICKY_PAIR).ne.0 ) then
1233         call do_sticky_pair(i, j, d, r, rijsq, sw, vpair, fpair, &
1234 <            pot, A, f, t, do_pot)
1234 >            pot(STICKY_POT), A, f, t, do_pot)
1235      endif
1236  
1237 <    if ( iand(iMap, STICKYPOWER_PAIR).ne.0 ) then
1237 >    if ( iand(iHash, STICKYPOWER_PAIR).ne.0 ) then
1238         call do_sticky_power_pair(i, j, d, r, rijsq, sw, vpair, fpair, &
1239 <            pot, A, f, t, do_pot)
1239 >            pot(STICKYPOWER_POT), A, f, t, do_pot)
1240      endif
1241  
1242 <    if ( iand(iMap, GAYBERNE_PAIR).ne.0 ) then
1242 >    if ( iand(iHash, GAYBERNE_PAIR).ne.0 ) then
1243         call do_gb_pair(i, j, d, r, rijsq, sw, vpair, fpair, &
1244 <            pot, A, f, t, do_pot)
1244 >            pot(GAYBERNE_POT), A, f, t, do_pot)
1245      endif
1246      
1247 <    if ( iand(iMap, GAYBERNE_LJ).ne.0 ) then
1247 >    if ( iand(iHash, GAYBERNE_LJ).ne.0 ) then
1248   !      call do_gblj_pair(i, j, d, r, rijsq, sw, vpair, fpair, &
1249 < !           pot, A, f, t, do_pot)
1249 > !           pot(GAYBERNE_LJ_POT), A, f, t, do_pot)
1250      endif
1251  
1252 <    if ( iand(iMap, EAM_PAIR).ne.0 ) then      
1253 <       call do_eam_pair(i, j, d, r, rijsq, sw, vpair, fpair, pot, f, &
1252 >    if ( iand(iHash, EAM_PAIR).ne.0 ) then      
1253 >       call do_eam_pair(i, j, d, r, rijsq, sw, vpair, fpair, pot(EAM_POT), f, &
1254              do_pot)
1255      endif
1256  
1257 <    if ( iand(iMap, SHAPE_PAIR).ne.0 ) then      
1257 >    if ( iand(iHash, SHAPE_PAIR).ne.0 ) then      
1258         call do_shape_pair(i, j, d, r, rijsq, sw, vpair, fpair, &
1259 <            pot, A, f, t, do_pot)
1259 >            pot(SHAPE_POT), A, f, t, do_pot)
1260      endif
1261  
1262 <    if ( iand(iMap, SHAPE_LJ).ne.0 ) then      
1262 >    if ( iand(iHash, SHAPE_LJ).ne.0 ) then      
1263         call do_shape_pair(i, j, d, r, rijsq, sw, vpair, fpair, &
1264 <            pot, A, f, t, do_pot)
1264 >            pot(SHAPE_LJ_POT), A, f, t, do_pot)
1265      endif
1266      
1267    end subroutine do_pair
# Line 1152 | Line 1269 | contains
1269    subroutine do_prepair(i, j, rijsq, d, sw, rcijsq, dc, &
1270         do_pot, do_stress, eFrame, A, f, t, pot)
1271  
1272 <    real( kind = dp ) :: pot, sw
1272 >    real( kind = dp ) :: sw
1273 >    real( kind = dp ), dimension(POT_ARRAY_SIZE) :: pot
1274      real( kind = dp ), dimension(9,nLocal) :: eFrame
1275      real (kind=dp), dimension(9,nLocal) :: A
1276      real (kind=dp), dimension(3,nLocal) :: f
# Line 1164 | Line 1282 | contains
1282      real ( kind = dp )                :: r, rc
1283      real ( kind = dp ), intent(inout) :: d(3), dc(3)
1284  
1285 <    integer :: me_i, me_j, iMap
1285 >    integer :: me_i, me_j, iHash
1286  
1287 +    r = sqrt(rijsq)
1288 +
1289   #ifdef IS_MPI  
1290      me_i = atid_row(i)
1291      me_j = atid_col(j)  
# Line 1174 | Line 1294 | contains
1294      me_j = atid(j)  
1295   #endif
1296  
1297 <    iMap = InteractionMap(me_i, me_j)%InteractionHash
1297 >    iHash = InteractionHash(me_i, me_j)
1298  
1299 <    if ( iand(iMap, EAM_PAIR).ne.0 ) then      
1299 >    if ( iand(iHash, EAM_PAIR).ne.0 ) then      
1300              call calc_EAM_prepair_rho(i, j, d, r, rijsq )
1301      endif
1302      
# Line 1185 | Line 1305 | contains
1305  
1306    subroutine do_preforce(nlocal,pot)
1307      integer :: nlocal
1308 <    real( kind = dp ) :: pot
1308 >    real( kind = dp ),dimension(POT_ARRAY_SIZE) :: pot
1309  
1310      if (FF_uses_EAM .and. SIM_uses_EAM) then
1311 <       call calc_EAM_preforce_Frho(nlocal,pot)
1311 >       call calc_EAM_preforce_Frho(nlocal,pot(EAM_POT))
1312      endif
1313  
1314  
# Line 1373 | Line 1493 | contains
1493  
1494    function FF_UsesDirectionalAtoms() result(doesit)
1495      logical :: doesit
1496 <    doesit = FF_uses_DirectionalAtoms .or. FF_uses_Dipoles .or. &
1377 <         FF_uses_Quadrupoles .or. FF_uses_Sticky .or. &
1378 <         FF_uses_StickyPower .or. FF_uses_GayBerne .or. FF_uses_Shapes
1496 >    doesit = FF_uses_DirectionalAtoms
1497    end function FF_UsesDirectionalAtoms
1498  
1499    function FF_RequiresPrepairCalc() result(doesit)
# Line 1385 | Line 1503 | contains
1503  
1504    function FF_RequiresPostpairCalc() result(doesit)
1505      logical :: doesit
1506 <    doesit = FF_uses_RF
1506 >    if (electrostaticSummationMethod == REACTION_FIELD) doesit = .true.
1507    end function FF_RequiresPostpairCalc
1508  
1509   #ifdef PROFILE

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