1 | SUBROUTINE lpm_pack_arrays |
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2 | |
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3 | !--------------------------------------------------------------------------------! |
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4 | ! This file is part of PALM. |
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5 | ! |
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6 | ! PALM is free software: you can redistribute it and/or modify it under the terms |
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7 | ! of the GNU General Public License as published by the Free Software Foundation, |
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8 | ! either version 3 of the License, or (at your option) any later version. |
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9 | ! |
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10 | ! PALM is distributed in the hope that it will be useful, but WITHOUT ANY |
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11 | ! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR |
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12 | ! A PARTICULAR PURPOSE. See the GNU General Public License for more details. |
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13 | ! |
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14 | ! You should have received a copy of the GNU General Public License along with |
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15 | ! PALM. If not, see <http://www.gnu.org/licenses/>. |
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16 | ! |
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17 | ! Copyright 1997-2012 Leibniz University Hannover |
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18 | !--------------------------------------------------------------------------------! |
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19 | ! |
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20 | ! Current revisions: |
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21 | ! ------------------ |
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22 | ! |
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23 | ! |
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24 | ! Former revisions: |
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25 | ! ----------------- |
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26 | ! $Id: lpm_pack_arrays.f90 1037 2012-10-22 14:10:22Z raasch $ |
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27 | ! |
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28 | ! 1036 2012-10-22 13:43:42Z raasch |
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29 | ! code put under GPL (PALM 3.9) |
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30 | ! |
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31 | ! 849 2012-03-15 10:35:09Z raasch |
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32 | ! initial revision (former part of advec_particles) |
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33 | ! |
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34 | ! |
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35 | ! Description: |
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36 | ! ------------ |
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37 | ! Pack particle and tail arrays, which means eliminate those elements marked for |
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38 | ! deletion and move data with higher index values to these free indices. |
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39 | ! Determine the new number of particles. |
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40 | !------------------------------------------------------------------------------! |
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41 | |
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42 | USE particle_attributes |
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43 | |
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44 | IMPLICIT NONE |
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45 | |
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46 | INTEGER :: n, nd, nn |
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47 | |
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48 | |
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49 | ! |
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50 | !-- Find out elements marked for deletion and move data with higher index |
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51 | !-- values to these free indices |
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52 | nn = 0 |
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53 | nd = 0 |
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54 | |
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55 | DO n = 1, number_of_particles |
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56 | |
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57 | IF ( particle_mask(n) ) THEN |
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58 | nn = nn + 1 |
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59 | particles(nn) = particles(n) |
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60 | ELSE |
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61 | nd = nd + 1 |
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62 | ENDIF |
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63 | |
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64 | ENDDO |
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65 | ! |
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66 | !-- The number of deleted particles has been determined in routines |
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67 | !-- lpm_boundary_conds, lpm_droplet_collision, and lpm_exchange_horiz |
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68 | number_of_particles = number_of_particles - deleted_particles |
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69 | |
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70 | ! |
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71 | !-- Handle tail array in the same way, store the new tail ids and re-assign it |
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72 | !-- to the respective particles |
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73 | IF ( use_particle_tails ) THEN |
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74 | |
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75 | nn = 0 |
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76 | nd = 0 |
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77 | |
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78 | DO n = 1, number_of_tails |
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79 | |
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80 | IF ( tail_mask(n) ) THEN |
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81 | nn = nn + 1 |
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82 | particle_tail_coordinates(:,:,nn) = & |
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83 | particle_tail_coordinates(:,:,n) |
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84 | new_tail_id(n) = nn |
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85 | ELSE |
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86 | nd = nd + 1 |
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87 | ENDIF |
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88 | |
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89 | ENDDO |
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90 | |
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91 | DO n = 1, number_of_particles |
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92 | IF ( particles(n)%tail_id /= 0 ) THEN |
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93 | particles(n)%tail_id = new_tail_id(particles(n)%tail_id) |
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94 | ENDIF |
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95 | ENDDO |
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96 | |
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97 | ENDIF |
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98 | |
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99 | ! |
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100 | !-- The number of deleted tails has been determined in routines |
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101 | !-- lpm_boundary_conds and lpm_exchange_horiz |
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102 | number_of_tails = number_of_tails - deleted_tails |
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103 | |
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104 | |
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105 | END SUBROUTINE lpm_pack_arrays |
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