1 | !-------------------------------------------------------------------------- |
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2 | !---------------------------- advect_horiz ---------------------------------- |
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3 | |
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4 | !$acc data create(qflux(:,:)) present(qi(:,:), cc(:,:,:), gradq3d(:,:,:), mass(:,:), hfluxt(:,:), Ai(:), xyz_i(:,:)) async |
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5 | |
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6 | ! evaluate tracer field at point cc using piecewise linear reconstruction |
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7 | ! q(cc)= q0 + gradq.(cc-xyz_i) with xi centroid of hexagon |
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8 | ! sign*hfluxt>0 iff outgoing |
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9 | !$acc parallel loop collapse(2) async |
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10 | DO l = ll_begin, ll_end |
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11 | !DIR$ SIMD |
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12 | DO ij=ij_begin_ext, ij_end_ext |
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13 | IF(ne_right*hfluxt(ij+u_right,l)>0.) THEN |
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14 | ij_tmp = ij |
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15 | ELSE |
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16 | ij_tmp = ij+t_right |
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17 | END IF |
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18 | |
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19 | qe = qi(ij_tmp,l) |
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20 | qe = qe + (cc(ij+u_right,l,1)-xyz_i(ij_tmp,1))*gradq3d(ij_tmp,l,1) |
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21 | qe = qe + (cc(ij+u_right,l,2)-xyz_i(ij_tmp,2))*gradq3d(ij_tmp,l,2) |
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22 | qe = qe + (cc(ij+u_right,l,3)-xyz_i(ij_tmp,3))*gradq3d(ij_tmp,l,3) |
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23 | |
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24 | qflux(ij+u_right,l) = hfluxt(ij+u_right,l)*qe |
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25 | |
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26 | IF(ne_lup*hfluxt(ij+u_lup,l)>0.) THEN |
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27 | ij_tmp = ij |
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28 | ELSE |
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29 | ij_tmp = ij+t_lup |
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30 | END IF |
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31 | |
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32 | qe = qi(ij_tmp,l) |
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33 | qe = qe + (cc(ij+u_lup,l,1)-xyz_i(ij_tmp,1))*gradq3d(ij_tmp,l,1) |
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34 | qe = qe + (cc(ij+u_lup,l,2)-xyz_i(ij_tmp,2))*gradq3d(ij_tmp,l,2) |
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35 | qe = qe + (cc(ij+u_lup,l,3)-xyz_i(ij_tmp,3))*gradq3d(ij_tmp,l,3) |
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36 | |
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37 | qflux(ij+u_lup,l) = hfluxt(ij+u_lup,l)*qe |
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38 | |
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39 | IF(ne_ldown*hfluxt(ij+u_ldown,l)>0.) THEN |
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40 | ij_tmp = ij |
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41 | ELSE |
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42 | ij_tmp = ij+t_ldown |
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43 | END IF |
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44 | |
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45 | qe = qi(ij_tmp,l) |
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46 | qe = qe + (cc(ij+u_ldown,l,1)-xyz_i(ij_tmp,1))*gradq3d(ij_tmp,l,1) |
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47 | qe = qe + (cc(ij+u_ldown,l,2)-xyz_i(ij_tmp,2))*gradq3d(ij_tmp,l,2) |
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48 | qe = qe + (cc(ij+u_ldown,l,3)-xyz_i(ij_tmp,3))*gradq3d(ij_tmp,l,3) |
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49 | |
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50 | qflux(ij+u_ldown,l) = hfluxt(ij+u_ldown,l)*qe |
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51 | END DO |
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52 | END DO |
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53 | |
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54 | IF(diagflux_on) THEN |
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55 | !$acc parallel loop collapse(2) copy(qfluxt(:,:)) async |
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56 | DO l = ll_begin, ll_end |
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57 | !DIR$ SIMD |
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58 | DO ij=ij_begin_ext, ij_end_ext |
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59 | qfluxt(ij+u_right,l) = qfluxt(ij+u_right,l)+qflux(ij+u_right,l) |
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60 | qfluxt(ij+u_lup,l) = qfluxt(ij+u_lup,l)+qflux(ij+u_lup,l) |
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61 | qfluxt(ij+u_ldown,l) = qfluxt(ij+u_ldown,l)+qflux(ij+u_ldown,l) |
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62 | END DO |
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63 | END DO |
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64 | END IF |
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65 | |
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66 | ! update q and, if update_mass, update mass |
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67 | !$acc parallel loop collapse(2) async |
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68 | DO l = ll_begin, ll_end |
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69 | !DIR$ SIMD |
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70 | DO ij=ij_begin, ij_end |
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71 | dmass=0. |
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72 | dq=0. |
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73 | dmass = dmass + ne_rup*hfluxt(ij+u_rup,l) |
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74 | dq = dq + ne_rup*qflux(ij+u_rup,l) |
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75 | dmass = dmass + ne_lup*hfluxt(ij+u_lup,l) |
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76 | dq = dq + ne_lup*qflux(ij+u_lup,l) |
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77 | dmass = dmass + ne_left*hfluxt(ij+u_left,l) |
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78 | dq = dq + ne_left*qflux(ij+u_left,l) |
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79 | dmass = dmass + ne_ldown*hfluxt(ij+u_ldown,l) |
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80 | dq = dq + ne_ldown*qflux(ij+u_ldown,l) |
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81 | dmass = dmass + ne_rdown*hfluxt(ij+u_rdown,l) |
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82 | dq = dq + ne_rdown*qflux(ij+u_rdown,l) |
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83 | dmass = dmass + ne_right*hfluxt(ij+u_right,l) |
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84 | dq = dq + ne_right*qflux(ij+u_right,l) |
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85 | newmass = mass(ij,l) - dmass/Ai(ij) |
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86 | qi(ij,l) = (qi(ij,l)*mass(ij,l)-dq/Ai(ij)) / newmass |
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87 | IF(update_mass) mass(ij,l)=newmass |
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88 | END DO |
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89 | END DO |
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90 | |
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91 | !$acc end data |
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92 | |
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93 | !---------------------------- advect_horiz ---------------------------------- |
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94 | !-------------------------------------------------------------------------- |
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