| [598] | 1 | /*************************************************************************/ |
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| 2 | /* */ |
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| 3 | /* Copyright (c) 1994 Stanford University */ |
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| 4 | /* */ |
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| 5 | /* All rights reserved. */ |
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| 6 | /* */ |
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| 7 | /* Permission is given to use, copy, and modify this software for any */ |
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| 8 | /* non-commercial purpose as long as this copyright notice is not */ |
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| 9 | /* removed. All other uses, including redistribution in whole or in */ |
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| 10 | /* part, are forbidden without prior written permission. */ |
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| 11 | /* */ |
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| 12 | /* This software is provided with absolutely no warranty and no */ |
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| 13 | /* support. */ |
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| 14 | /* */ |
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| 15 | /*************************************************************************/ |
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| [581] | 16 | |
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| [598] | 17 | /* **************** |
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| 18 | subroutine slave |
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| 19 | **************** */ |
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| 20 | |
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| 21 | EXTERN_ENV |
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| 22 | |
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| 23 | #include <stdio.h> |
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| 24 | #include <math.h> |
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| 25 | #include <stdlib.h> |
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| 26 | |
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| 27 | #include "decs.h" |
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| 28 | |
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| 29 | void slave(long *ptr_procid) |
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| 30 | { |
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| 31 | long i; |
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| 32 | long j; |
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| 33 | long nstep; |
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| 34 | long iindex; |
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| 35 | long iday; |
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| 36 | double ysca1; |
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| 37 | double y; |
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| 38 | double factor; |
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| 39 | double sintemp; |
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| 40 | double curlt; |
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| 41 | double ressqr; |
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| 42 | long istart; |
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| 43 | long iend; |
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| 44 | long jstart; |
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| 45 | long jend; |
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| 46 | long ist; |
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| 47 | long ien; |
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| 48 | long jst; |
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| 49 | long jen; |
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| 50 | double fac; |
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| 51 | long dayflag = 0; |
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| 52 | long dhourflag = 0; |
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| 53 | long endflag = 0; |
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| 54 | long firstrow; |
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| 55 | long lastrow; |
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| 56 | long numrows; |
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| 57 | long firstcol; |
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| 58 | long lastcol; |
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| 59 | long numcols; |
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| 60 | long psiindex; |
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| 61 | double psibipriv; |
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| 62 | double ttime; |
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| 63 | double dhour; |
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| 64 | double day; |
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| 65 | long procid; |
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| 66 | long j_off = 0; |
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| 67 | unsigned long t1; |
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| 68 | double **t2a; |
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| 69 | double **t2b; |
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| 70 | double *t1a; |
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| 71 | double *t1b; |
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| 72 | double *t1c; |
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| 73 | double *t1d; |
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| 74 | |
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| 75 | |
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| 76 | /* |
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| 77 | LOCK(locks->idlock) |
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| 78 | procid = global->id; |
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| 79 | global->id = global->id+1; |
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| 80 | UNLOCK(locks->idlock) |
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| 81 | */ |
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| 82 | |
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| 83 | procid = *ptr_procid; |
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| 84 | ressqr = lev_res[numlev - 1] * lev_res[numlev - 1]; |
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| 85 | |
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| 86 | #if defined(MULTIPLE_BARRIERS) |
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| 87 | BARRIER(bars->sl_prini, nprocs) |
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| 88 | #else |
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| 89 | BARRIER(bars->barrier, nprocs) |
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| 90 | #endif |
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| 91 | /* POSSIBLE ENHANCEMENT: Here is where one might pin processes to |
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| 92 | processors to avoid migration. */ |
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| 93 | /* POSSIBLE ENHANCEMENT: Here is where one might distribute |
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| 94 | data structures across physically distributed memories as |
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| 95 | desired. |
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| 96 | |
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| 97 | One way to do this is as follows. The function allocate(START,SIZE,I) |
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| 98 | is assumed to place all addresses x such that |
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| 99 | (START <= x < START+SIZE) on node I. |
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| 100 | |
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| 101 | long d_size; |
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| 102 | unsigned long g_size; |
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| 103 | unsigned long mg_size; |
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| 104 | |
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| 105 | if (procid == MASTER) { |
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| 106 | g_size = ((jmx[numlev-1]-2)/xprocs+2)*((imx[numlev-1]-2)/yprocs+2)*siz |
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| 107 | eof(double) + |
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| 108 | ((imx[numlev-1]-2)/yprocs+2)*sizeof(double *); |
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| 109 | |
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| 110 | mg_size = numlev*sizeof(double **); |
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| 111 | for (i=0;i<numlev;i++) { |
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| 112 | mg_size+=((imx[i]-2)/yprocs+2)*((jmx[i]-2)/xprocs+2)*sizeof(double)+ |
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| 113 | ((imx[i]-2)/yprocs+2)*sizeof(double *); |
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| 114 | } |
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| 115 | for (i= 0;i<nprocs;i++) { |
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| 116 | d_size = 2*sizeof(double **); |
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| 117 | allocate((unsigned long) psi[i],d_size,i); |
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| 118 | allocate((unsigned long) psim[i],d_size,i); |
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| 119 | allocate((unsigned long) work1[i],d_size,i); |
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| 120 | allocate((unsigned long) work4[i],d_size,i); |
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| 121 | allocate((unsigned long) work5[i],d_size,i); |
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| 122 | allocate((unsigned long) work7[i],d_size,i); |
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| 123 | allocate((unsigned long) temparray[i],d_size,i); |
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| 124 | allocate((unsigned long) psi[i][0],g_size,i); |
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| 125 | allocate((unsigned long) psi[i][1],g_size,i); |
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| 126 | allocate((unsigned long) psim[i][0],g_size,i); |
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| 127 | allocate((unsigned long) psim[i][1],g_size,i); |
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| 128 | allocate((unsigned long) psium[i],g_size,i); |
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| 129 | allocate((unsigned long) psilm[i],g_size,i); |
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| 130 | allocate((unsigned long) psib[i],g_size,i); |
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| 131 | allocate((unsigned long) ga[i],g_size,i); |
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| 132 | allocate((unsigned long) gb[i],g_size,i); |
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| 133 | allocate((unsigned long) work1[i][0],g_size,i); |
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| 134 | allocate((unsigned long) work1[i][1],g_size,i); |
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| 135 | allocate((unsigned long) work2[i],g_size,i); |
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| 136 | allocate((unsigned long) work3[i],g_size,i); |
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| 137 | allocate((unsigned long) work4[i][0],g_size,i); |
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| 138 | allocate((unsigned long) work4[i][1],g_size,i); |
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| 139 | allocate((unsigned long) work5[i][0],g_size,i); |
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| 140 | allocate((unsigned long) work5[i][1],g_size,i); |
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| 141 | allocate((unsigned long) work6[i],g_size,i); |
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| 142 | allocate((unsigned long) work7[i][0],g_size,i); |
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| 143 | allocate((unsigned long) work7[i][1],g_size,i); |
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| 144 | allocate((unsigned long) temparray[i][0],g_size,i); |
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| 145 | allocate((unsigned long) temparray[i][1],g_size,i); |
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| 146 | allocate((unsigned long) tauz[i],g_size,i); |
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| 147 | allocate((unsigned long) oldga[i],g_size,i); |
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| 148 | allocate((unsigned long) oldgb[i],g_size,i); |
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| 149 | d_size = numlev * sizeof(long); |
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| 150 | allocate((unsigned long) gp[i].rel_num_x,d_size,i); |
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| 151 | allocate((unsigned long) gp[i].rel_num_y,d_size,i); |
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| 152 | allocate((unsigned long) gp[i].eist,d_size,i); |
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| 153 | allocate((unsigned long) gp[i].ejst,d_size,i); |
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| 154 | allocate((unsigned long) gp[i].oist,d_size,i); |
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| 155 | allocate((unsigned long) gp[i].ojst,d_size,i); |
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| 156 | allocate((unsigned long) gp[i].rlist,d_size,i); |
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| 157 | allocate((unsigned long) gp[i].rljst,d_size,i); |
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| 158 | allocate((unsigned long) gp[i].rlien,d_size,i); |
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| 159 | allocate((unsigned long) gp[i].rljen,d_size,i); |
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| 160 | |
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| 161 | allocate((unsigned long) q_multi[i],mg_size,i); |
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| 162 | allocate((unsigned long) rhs_multi[i],mg_size,i); |
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| 163 | allocate((unsigned long) &(gp[i]),sizeof(struct Global_Private),i); |
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| 164 | } |
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| 165 | } |
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| 166 | |
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| 167 | */ |
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| 168 | t2a = (double **) oldga[procid]; |
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| 169 | t2b = (double **) oldgb[procid]; |
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| 170 | for (i = 0; i < im; i++) { |
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| 171 | t1a = (double *) t2a[i]; |
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| 172 | t1b = (double *) t2b[i]; |
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| 173 | for (j = 0; j < jm; j++) { |
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| 174 | t1a[j] = 0.0; |
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| 175 | t1b[j] = 0.0; |
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| 176 | } |
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| 177 | } |
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| 178 | |
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| 179 | firstcol = 1; |
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| 180 | lastcol = firstcol + gp[procid].rel_num_x[numlev - 1] - 1; |
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| 181 | firstrow = 1; |
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| 182 | lastrow = firstrow + gp[procid].rel_num_y[numlev - 1] - 1; |
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| 183 | numcols = gp[procid].rel_num_x[numlev - 1]; |
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| 184 | numrows = gp[procid].rel_num_y[numlev - 1]; |
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| 185 | j_off = (*gp[procid].colnum) * numcols; |
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| 186 | |
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| 187 | /* |
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| 188 | if (procid > nprocs/2) { |
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| 189 | psinum = 2; |
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| 190 | } else { |
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| 191 | psinum = 1; |
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| 192 | } |
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| 193 | */ |
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| 194 | |
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| 195 | /* every process gets its own copy of the timing variables to avoid |
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| 196 | contention at shared memory locations. here, these variables |
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| 197 | are initialized. */ |
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| 198 | |
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| 199 | ttime = 0.0; |
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| 200 | dhour = 0.0; |
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| 201 | nstep = 0; |
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| 202 | day = 0.0; |
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| 203 | |
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| 204 | ysca1 = 0.5 * ysca; |
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| 205 | |
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| 206 | if (*gp[procid].lpid == MASTER) { |
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| 207 | |
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| 208 | f = (double *) G_MALLOC(oim * sizeof(double), procid); |
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| 209 | |
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| 210 | t1a = (double *) f; |
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| 211 | for (iindex = 0; iindex <= jmx[numlev - 1] - 1; iindex++) { |
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| 212 | y = ((double) iindex) * res; |
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| 213 | t1a[iindex] = f0 + beta * (y - ysca1); |
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| 214 | } |
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| 215 | } |
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| 216 | |
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| 217 | t2a = (double **) psium[procid]; |
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| 218 | if ((gp[procid].neighbors[UP] == -1) && (gp[procid].neighbors[LEFT] == -1)) { |
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| 219 | t2a[0][0] = 0.0; |
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| 220 | } |
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| 221 | if ((gp[procid].neighbors[DOWN] == -1) && (gp[procid].neighbors[LEFT] == -1)) { |
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| 222 | t2a[im - 1][0] = 0.0; |
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| 223 | } |
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| 224 | if ((gp[procid].neighbors[UP] == -1) && (gp[procid].neighbors[RIGHT] == -1)) { |
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| 225 | t2a[0][jm - 1] = 0.0; |
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| 226 | } |
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| 227 | if ((gp[procid].neighbors[DOWN] == -1) && (gp[procid].neighbors[RIGHT] == -1)) { |
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| 228 | t2a[im - 1][jm - 1] = 0.0; |
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| 229 | } |
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| 230 | if (gp[procid].neighbors[UP] == -1) { |
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| 231 | t1a = (double *) t2a[0]; |
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| 232 | for (j = firstcol; j <= lastcol; j++) { |
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| 233 | t1a[j] = 0.0; |
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| 234 | } |
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| 235 | } |
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| 236 | if (gp[procid].neighbors[DOWN] == -1) { |
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| 237 | t1a = (double *) t2a[im - 1]; |
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| 238 | for (j = firstcol; j <= lastcol; j++) { |
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| 239 | t1a[j] = 0.0; |
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| 240 | } |
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| 241 | } |
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| 242 | if (gp[procid].neighbors[LEFT] == -1) { |
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| 243 | for (j = firstrow; j <= lastrow; j++) { |
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| 244 | t2a[j][0] = 0.0; |
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| 245 | } |
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| 246 | } |
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| 247 | if (gp[procid].neighbors[RIGHT] == -1) { |
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| 248 | for (j = firstrow; j <= lastrow; j++) { |
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| 249 | t2a[j][jm - 1] = 0.0; |
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| 250 | } |
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| 251 | } |
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| 252 | |
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| 253 | for (i = firstrow; i <= lastrow; i++) { |
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| 254 | t1a = (double *) t2a[i]; |
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| 255 | for (iindex = firstcol; iindex <= lastcol; iindex++) { |
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| 256 | t1a[iindex] = 0.0; |
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| 257 | } |
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| 258 | } |
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| 259 | t2a = (double **) psilm[procid]; |
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| 260 | if ((gp[procid].neighbors[UP] == -1) && (gp[procid].neighbors[LEFT] == -1)) { |
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| 261 | t2a[0][0] = 0.0; |
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| 262 | } |
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| 263 | if ((gp[procid].neighbors[DOWN] == -1) && (gp[procid].neighbors[LEFT] == -1)) { |
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| 264 | t2a[im - 1][0] = 0.0; |
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| 265 | } |
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| 266 | if ((gp[procid].neighbors[UP] == -1) && (gp[procid].neighbors[RIGHT] == -1)) { |
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| 267 | t2a[0][jm - 1] = 0.0; |
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| 268 | } |
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| 269 | if ((gp[procid].neighbors[DOWN] == -1) && (gp[procid].neighbors[RIGHT] == -1)) { |
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| 270 | t2a[im - 1][jm - 1] = 0.0; |
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| 271 | } |
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| 272 | if (gp[procid].neighbors[UP] == -1) { |
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| 273 | t1a = (double *) t2a[0]; |
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| 274 | for (j = firstcol; j <= lastcol; j++) { |
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| 275 | t1a[j] = 0.0; |
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| 276 | } |
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| 277 | } |
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| 278 | if (gp[procid].neighbors[DOWN] == -1) { |
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| 279 | t1a = (double *) t2a[im - 1]; |
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| 280 | for (j = firstcol; j <= lastcol; j++) { |
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| 281 | t1a[j] = 0.0; |
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| 282 | } |
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| 283 | } |
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| 284 | if (gp[procid].neighbors[LEFT] == -1) { |
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| 285 | for (j = firstrow; j <= lastrow; j++) { |
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| 286 | t2a[j][0] = 0.0; |
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| 287 | } |
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| 288 | } |
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| 289 | if (gp[procid].neighbors[RIGHT] == -1) { |
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| 290 | for (j = firstrow; j <= lastrow; j++) { |
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| 291 | t2a[j][jm - 1] = 0.0; |
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| 292 | } |
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| 293 | } |
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| 294 | for (i = firstrow; i <= lastrow; i++) { |
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| 295 | t1a = (double *) t2a[i]; |
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| 296 | for (iindex = firstcol; iindex <= lastcol; iindex++) { |
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| 297 | t1a[iindex] = 0.0; |
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| 298 | } |
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| 299 | } |
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| 300 | |
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| 301 | t2a = (double **) psib[procid]; |
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| 302 | if ((gp[procid].neighbors[UP] == -1) && (gp[procid].neighbors[LEFT] == -1)) { |
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| 303 | t2a[0][0] = 1.0; |
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| 304 | } |
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| 305 | if ((gp[procid].neighbors[UP] == -1) && (gp[procid].neighbors[RIGHT] == -1)) { |
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| 306 | t2a[0][jm - 1] = 1.0; |
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| 307 | } |
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| 308 | if ((gp[procid].neighbors[DOWN] == -1) && (gp[procid].neighbors[LEFT] == -1)) { |
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| 309 | t2a[im - 1][0] = 1.0; |
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| 310 | } |
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| 311 | if ((gp[procid].neighbors[DOWN] == -1) && (gp[procid].neighbors[RIGHT] == -1)) { |
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| 312 | t2a[im - 1][jm - 1] = 1.0; |
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| 313 | } |
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| 314 | if (gp[procid].neighbors[UP] == -1) { |
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| 315 | t1a = (double *) t2a[0]; |
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| 316 | for (j = firstcol; j <= lastcol; j++) { |
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| 317 | t1a[j] = 1.0; |
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| 318 | } |
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| 319 | } |
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| 320 | if (gp[procid].neighbors[DOWN] == -1) { |
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| 321 | t1a = (double *) t2a[im - 1]; |
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| 322 | for (j = firstcol; j <= lastcol; j++) { |
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| 323 | t1a[j] = 1.0; |
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| 324 | } |
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| 325 | } |
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| 326 | if (gp[procid].neighbors[LEFT] == -1) { |
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| 327 | for (j = firstrow; j <= lastrow; j++) { |
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| 328 | t2a[j][0] = 1.0; |
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| 329 | } |
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| 330 | } |
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| 331 | if (gp[procid].neighbors[RIGHT] == -1) { |
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| 332 | for (j = firstrow; j <= lastrow; j++) { |
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| 333 | t2a[j][jm - 1] = 1.0; |
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| 334 | } |
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| 335 | } |
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| 336 | for (i = firstrow; i <= lastrow; i++) { |
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| 337 | t1a = (double *) t2a[i]; |
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| 338 | for (iindex = firstcol; iindex <= lastcol; iindex++) { |
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| 339 | t1a[iindex] = 0.0; |
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| 340 | } |
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| 341 | } |
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| 342 | |
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| 343 | /* wait until all processes have completed the above initialization */ |
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| 344 | #if defined(MULTIPLE_BARRIERS) |
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| 345 | BARRIER(bars->sl_prini, nprocs) |
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| 346 | #else |
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| 347 | BARRIER(bars->barrier, nprocs) |
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| 348 | #endif |
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| 349 | /* compute psib array (one-time computation) and integrate into psibi */ |
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| 350 | istart = 1; |
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| 351 | iend = istart + gp[procid].rel_num_y[numlev - 1] - 1; |
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| 352 | jstart = 1; |
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| 353 | jend = jstart + gp[procid].rel_num_x[numlev - 1] - 1; |
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| 354 | ist = istart; |
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| 355 | ien = iend; |
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| 356 | jst = jstart; |
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| 357 | jen = jend; |
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| 358 | |
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| 359 | if (gp[procid].neighbors[UP] == -1) { |
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| 360 | istart = 0; |
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| 361 | } |
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| 362 | if (gp[procid].neighbors[LEFT] == -1) { |
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| 363 | jstart = 0; |
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| 364 | } |
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| 365 | if (gp[procid].neighbors[DOWN] == -1) { |
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| 366 | iend = im - 1; |
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| 367 | } |
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| 368 | if (gp[procid].neighbors[RIGHT] == -1) { |
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| 369 | jend = jm - 1; |
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| 370 | } |
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| 371 | |
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| 372 | t2a = (double **) rhs_multi[procid][numlev - 1]; |
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| 373 | t2b = (double **) psib[procid]; |
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| 374 | for (i = istart; i <= iend; i++) { |
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| 375 | t1a = (double *) t2a[i]; |
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| 376 | t1b = (double *) t2b[i]; |
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| 377 | for (j = jstart; j <= jend; j++) { |
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| 378 | t1a[j] = t1b[j] * ressqr; |
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| 379 | } |
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| 380 | } |
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| 381 | t2a = (double **) q_multi[procid][numlev - 1]; |
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| 382 | if (gp[procid].neighbors[UP] == -1) { |
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| 383 | t1a = (double *) t2a[0]; |
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| 384 | t1b = (double *) t2b[0]; |
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| 385 | for (j = jstart; j <= jend; j++) { |
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| 386 | t1a[j] = t1b[j]; |
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| 387 | } |
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| 388 | } |
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| 389 | if (gp[procid].neighbors[DOWN] == -1) { |
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| 390 | t1a = (double *) t2a[im - 1]; |
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| 391 | t1b = (double *) t2b[im - 1]; |
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| 392 | for (j = jstart; j <= jend; j++) { |
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| 393 | t1a[j] = t1b[j]; |
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| 394 | } |
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| 395 | } |
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| 396 | if (gp[procid].neighbors[LEFT] == -1) { |
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| 397 | for (i = istart; i <= iend; i++) { |
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| 398 | t2a[i][0] = t2b[i][0]; |
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| 399 | } |
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| 400 | } |
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| 401 | if (gp[procid].neighbors[RIGHT] == -1) { |
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| 402 | for (i = istart; i <= iend; i++) { |
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| 403 | t2a[i][jm - 1] = t2b[i][jm - 1]; |
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| 404 | } |
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| 405 | } |
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| 406 | |
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| 407 | #if defined(MULTIPLE_BARRIERS) |
|---|
| 408 | BARRIER(bars->sl_psini, nprocs) |
|---|
| 409 | #else |
|---|
| 410 | BARRIER(bars->barrier, nprocs) |
|---|
| 411 | #endif |
|---|
| 412 | |
|---|
| 413 | t2a = (double **) psib[procid]; |
|---|
| 414 | j = gp[procid].neighbors[UP]; |
|---|
| 415 | if (j != -1) { |
|---|
| 416 | t1a = (double *) t2a[0]; |
|---|
| 417 | t1b = (double *) psib[j][im - 2]; |
|---|
| 418 | for (i = 1; i < jm - 1; i++) { |
|---|
| 419 | t1a[i] = t1b[i]; |
|---|
| 420 | } |
|---|
| 421 | } |
|---|
| 422 | j = gp[procid].neighbors[DOWN]; |
|---|
| 423 | if (j != -1) { |
|---|
| 424 | t1a = (double *) t2a[im - 1]; |
|---|
| 425 | t1b = (double *) psib[j][1]; |
|---|
| 426 | for (i = 1; i < jm - 1; i++) { |
|---|
| 427 | t1a[i] = t1b[i]; |
|---|
| 428 | } |
|---|
| 429 | } |
|---|
| 430 | j = gp[procid].neighbors[LEFT]; |
|---|
| 431 | if (j != -1) { |
|---|
| 432 | t2b = (double **) psib[j]; |
|---|
| 433 | for (i = 1; i < im - 1; i++) { |
|---|
| 434 | t2a[i][0] = t2b[i][jm - 2]; |
|---|
| 435 | } |
|---|
| 436 | } |
|---|
| 437 | j = gp[procid].neighbors[RIGHT]; |
|---|
| 438 | if (j != -1) { |
|---|
| 439 | t2b = (double **) psib[j]; |
|---|
| 440 | for (i = 1; i < im - 1; i++) { |
|---|
| 441 | t2a[i][jm - 1] = t2b[i][1]; |
|---|
| 442 | } |
|---|
| 443 | } |
|---|
| 444 | |
|---|
| 445 | t2a = (double **) q_multi[procid][numlev - 1]; |
|---|
| 446 | t2b = (double **) psib[procid]; |
|---|
| 447 | fac = 1.0 / (4.0 - ressqr * eig2); |
|---|
| 448 | for (i = ist; i <= ien; i++) { |
|---|
| 449 | t1a = (double *) t2a[i]; |
|---|
| 450 | t1b = (double *) t2b[i]; |
|---|
| 451 | t1c = (double *) t2b[i - 1]; |
|---|
| 452 | t1d = (double *) t2b[i + 1]; |
|---|
| 453 | for (j = jst; j <= jen; j++) { |
|---|
| 454 | t1a[j] = fac * (t1d[j] + t1c[j] + t1b[j + 1] + t1b[j - 1] - ressqr * t1b[j]); |
|---|
| 455 | } |
|---|
| 456 | } |
|---|
| 457 | |
|---|
| 458 | multig(procid); |
|---|
| 459 | |
|---|
| 460 | for (i = istart; i <= iend; i++) { |
|---|
| 461 | t1a = (double *) t2a[i]; |
|---|
| 462 | t1b = (double *) t2b[i]; |
|---|
| 463 | for (j = jstart; j <= jend; j++) { |
|---|
| 464 | t1b[j] = t1a[j]; |
|---|
| 465 | } |
|---|
| 466 | } |
|---|
| 467 | |
|---|
| 468 | #if defined(MULTIPLE_BARRIERS) |
|---|
| 469 | BARRIER(bars->sl_prini, nprocs) |
|---|
| 470 | #else |
|---|
| 471 | BARRIER(bars->barrier, nprocs) |
|---|
| 472 | #endif |
|---|
| 473 | |
|---|
| 474 | /* update the local running sum psibipriv by summing all the resulting |
|---|
| 475 | values in that process's share of the psib matrix */ |
|---|
| 476 | |
|---|
| 477 | t2a = (double **) psib[procid]; |
|---|
| 478 | psibipriv = 0.0; |
|---|
| 479 | if ((gp[procid].neighbors[UP] == -1) && (gp[procid].neighbors[LEFT] == -1)) { |
|---|
| 480 | psibipriv = psibipriv + 0.25 * (t2a[0][0]); |
|---|
| 481 | } |
|---|
| 482 | if ((gp[procid].neighbors[UP] == -1) && (gp[procid].neighbors[RIGHT] == -1)) { |
|---|
| 483 | psibipriv = psibipriv + 0.25 * (t2a[0][jm - 1]); |
|---|
| 484 | } |
|---|
| 485 | if ((gp[procid].neighbors[DOWN] == -1) && (gp[procid].neighbors[LEFT] == -1)) { |
|---|
| 486 | psibipriv = psibipriv + 0.25 * (t2a[im - 1][0]); |
|---|
| 487 | } |
|---|
| 488 | if ((gp[procid].neighbors[DOWN] == -1) && (gp[procid].neighbors[RIGHT] == -1)) { |
|---|
| 489 | psibipriv = psibipriv + 0.25 * (t2a[im - 1][jm - 1]); |
|---|
| 490 | } |
|---|
| 491 | if (gp[procid].neighbors[UP] == -1) { |
|---|
| 492 | t1a = (double *) t2a[0]; |
|---|
| 493 | for (j = firstcol; j <= lastcol; j++) { |
|---|
| 494 | psibipriv = psibipriv + 0.5 * t1a[j]; |
|---|
| 495 | } |
|---|
| 496 | } |
|---|
| 497 | if (gp[procid].neighbors[DOWN] == -1) { |
|---|
| 498 | t1a = (double *) t2a[im - 1]; |
|---|
| 499 | for (j = firstcol; j <= lastcol; j++) { |
|---|
| 500 | psibipriv = psibipriv + 0.5 * t1a[j]; |
|---|
| 501 | } |
|---|
| 502 | } |
|---|
| 503 | if (gp[procid].neighbors[LEFT] == -1) { |
|---|
| 504 | for (j = firstrow; j <= lastrow; j++) { |
|---|
| 505 | psibipriv = psibipriv + 0.5 * t2a[j][0]; |
|---|
| 506 | } |
|---|
| 507 | } |
|---|
| 508 | if (gp[procid].neighbors[RIGHT] == -1) { |
|---|
| 509 | for (j = firstrow; j <= lastrow; j++) { |
|---|
| 510 | psibipriv = psibipriv + 0.5 * t2a[j][jm - 1]; |
|---|
| 511 | } |
|---|
| 512 | } |
|---|
| 513 | for (i = firstrow; i <= lastrow; i++) { |
|---|
| 514 | t1a = (double *) t2a[i]; |
|---|
| 515 | for (iindex = firstcol; iindex <= lastcol; iindex++) { |
|---|
| 516 | psibipriv = psibipriv + t1a[iindex]; |
|---|
| 517 | } |
|---|
| 518 | } |
|---|
| 519 | |
|---|
| 520 | /* update the shared variable psibi by summing all the psibiprivs |
|---|
| 521 | of the individual processes into it. note that this combined |
|---|
| 522 | private and shared sum method avoids accessing the shared |
|---|
| 523 | variable psibi once for every element of the matrix. */ |
|---|
| 524 | |
|---|
| 525 | LOCK(locks->psibilock); |
|---|
| 526 | global->psibi = global->psibi + psibipriv; |
|---|
| 527 | UNLOCK(locks->psibilock); |
|---|
| 528 | |
|---|
| 529 | /* initialize psim matrices |
|---|
| 530 | |
|---|
| 531 | if there is more than one process, then split the processes |
|---|
| 532 | between the two psim matrices; otherwise, let the single process |
|---|
| 533 | work on one first and then the other */ |
|---|
| 534 | |
|---|
| 535 | for (psiindex = 0; psiindex <= 1; psiindex++) { |
|---|
| 536 | t2a = (double **) psim[procid][psiindex]; |
|---|
| 537 | if ((gp[procid].neighbors[UP] == -1) && (gp[procid].neighbors[LEFT] == -1)) { |
|---|
| 538 | t2a[0][0] = 0.0; |
|---|
| 539 | } |
|---|
| 540 | if ((gp[procid].neighbors[DOWN] == -1) && (gp[procid].neighbors[LEFT] == -1)) { |
|---|
| 541 | t2a[im - 1][0] = 0.0; |
|---|
| 542 | } |
|---|
| 543 | if ((gp[procid].neighbors[UP] == -1) && (gp[procid].neighbors[RIGHT] == -1)) { |
|---|
| 544 | t2a[0][jm - 1] = 0.0; |
|---|
| 545 | } |
|---|
| 546 | if ((gp[procid].neighbors[DOWN] == -1) && (gp[procid].neighbors[RIGHT] == -1)) { |
|---|
| 547 | t2a[im - 1][jm - 1] = 0.0; |
|---|
| 548 | } |
|---|
| 549 | if (gp[procid].neighbors[UP] == -1) { |
|---|
| 550 | t1a = (double *) t2a[0]; |
|---|
| 551 | for (j = firstcol; j <= lastcol; j++) { |
|---|
| 552 | t1a[j] = 0.0; |
|---|
| 553 | } |
|---|
| 554 | } |
|---|
| 555 | if (gp[procid].neighbors[DOWN] == -1) { |
|---|
| 556 | t1a = (double *) t2a[im - 1]; |
|---|
| 557 | for (j = firstcol; j <= lastcol; j++) { |
|---|
| 558 | t1a[j] = 0.0; |
|---|
| 559 | } |
|---|
| 560 | } |
|---|
| 561 | if (gp[procid].neighbors[LEFT] == -1) { |
|---|
| 562 | for (j = firstrow; j <= lastrow; j++) { |
|---|
| 563 | t2a[j][0] = 0.0; |
|---|
| 564 | } |
|---|
| 565 | } |
|---|
| 566 | if (gp[procid].neighbors[RIGHT] == -1) { |
|---|
| 567 | for (j = firstrow; j <= lastrow; j++) { |
|---|
| 568 | t2a[j][jm - 1] = 0.0; |
|---|
| 569 | } |
|---|
| 570 | } |
|---|
| 571 | for (i = firstrow; i <= lastrow; i++) { |
|---|
| 572 | t1a = (double *) t2a[i]; |
|---|
| 573 | for (iindex = firstcol; iindex <= lastcol; iindex++) { |
|---|
| 574 | t1a[iindex] = 0.0; |
|---|
| 575 | } |
|---|
| 576 | } |
|---|
| 577 | } |
|---|
| 578 | |
|---|
| 579 | /* initialize psi matrices the same way */ |
|---|
| 580 | |
|---|
| 581 | for (psiindex = 0; psiindex <= 1; psiindex++) { |
|---|
| 582 | t2a = (double **) psi[procid][psiindex]; |
|---|
| 583 | if ((gp[procid].neighbors[UP] == -1) && (gp[procid].neighbors[LEFT] == -1)) { |
|---|
| 584 | t2a[0][0] = 0.0; |
|---|
| 585 | } |
|---|
| 586 | if ((gp[procid].neighbors[UP] == -1) && (gp[procid].neighbors[RIGHT] == -1)) { |
|---|
| 587 | t2a[0][jm - 1] = 0.0; |
|---|
| 588 | } |
|---|
| 589 | if ((gp[procid].neighbors[DOWN] == -1) && (gp[procid].neighbors[LEFT] == -1)) { |
|---|
| 590 | t2a[im - 1][0] = 0.0; |
|---|
| 591 | } |
|---|
| 592 | if ((gp[procid].neighbors[DOWN] == -1) && (gp[procid].neighbors[RIGHT] == -1)) { |
|---|
| 593 | t2a[im - 1][jm - 1] = 0.0; |
|---|
| 594 | } |
|---|
| 595 | if (gp[procid].neighbors[UP] == -1) { |
|---|
| 596 | t1a = (double *) t2a[0]; |
|---|
| 597 | for (j = firstcol; j <= lastcol; j++) { |
|---|
| 598 | t1a[j] = 0.0; |
|---|
| 599 | } |
|---|
| 600 | } |
|---|
| 601 | if (gp[procid].neighbors[DOWN] == -1) { |
|---|
| 602 | t1a = (double *) t2a[im - 1]; |
|---|
| 603 | for (j = firstcol; j <= lastcol; j++) { |
|---|
| 604 | t1a[j] = 0.0; |
|---|
| 605 | } |
|---|
| 606 | } |
|---|
| 607 | if (gp[procid].neighbors[LEFT] == -1) { |
|---|
| 608 | for (j = firstrow; j <= lastrow; j++) { |
|---|
| 609 | t2a[j][0] = 0.0; |
|---|
| 610 | } |
|---|
| 611 | } |
|---|
| 612 | if (gp[procid].neighbors[RIGHT] == -1) { |
|---|
| 613 | for (j = firstrow; j <= lastrow; j++) { |
|---|
| 614 | t2a[j][jm - 1] = 0.0; |
|---|
| 615 | } |
|---|
| 616 | } |
|---|
| 617 | for (i = firstrow; i <= lastrow; i++) { |
|---|
| 618 | t1a = (double *) t2a[i]; |
|---|
| 619 | for (iindex = firstcol; iindex <= lastcol; iindex++) { |
|---|
| 620 | t1a[iindex] = 0.0; |
|---|
| 621 | } |
|---|
| 622 | } |
|---|
| 623 | } |
|---|
| 624 | |
|---|
| 625 | /* compute input curl of wind stress */ |
|---|
| 626 | |
|---|
| 627 | |
|---|
| 628 | t2a = (double **) tauz[procid]; |
|---|
| 629 | ysca1 = .5 * ysca; |
|---|
| 630 | factor = -t0 * pi / ysca1; |
|---|
| 631 | if ((gp[procid].neighbors[UP] == -1) && (gp[procid].neighbors[LEFT] == -1)) { |
|---|
| 632 | t2a[0][0] = 0.0; |
|---|
| 633 | } |
|---|
| 634 | if ((gp[procid].neighbors[DOWN] == -1) && (gp[procid].neighbors[LEFT] == -1)) { |
|---|
| 635 | t2a[im - 1][0] = 0.0; |
|---|
| 636 | } |
|---|
| 637 | if ((gp[procid].neighbors[UP] == -1) && (gp[procid].neighbors[RIGHT] == -1)) { |
|---|
| 638 | sintemp = pi * ((double) jm - 1 + j_off) * res / ysca1; |
|---|
| 639 | sintemp = sin(sintemp); |
|---|
| 640 | t2a[0][jm - 1] = factor * sintemp; |
|---|
| 641 | } |
|---|
| 642 | if ((gp[procid].neighbors[DOWN] == -1) && (gp[procid].neighbors[RIGHT] == -1)) { |
|---|
| 643 | sintemp = pi * ((double) jm - 1 + j_off) * res / ysca1; |
|---|
| 644 | sintemp = sin(sintemp); |
|---|
| 645 | t2a[im - 1][jm - 1] = factor * sintemp; |
|---|
| 646 | } |
|---|
| 647 | if (gp[procid].neighbors[UP] == -1) { |
|---|
| 648 | t1a = (double *) t2a[0]; |
|---|
| 649 | for (j = firstcol; j <= lastcol; j++) { |
|---|
| 650 | sintemp = pi * ((double) j + j_off) * res / ysca1; |
|---|
| 651 | sintemp = sin(sintemp); |
|---|
| 652 | curlt = factor * sintemp; |
|---|
| 653 | t1a[j] = curlt; |
|---|
| 654 | } |
|---|
| 655 | } |
|---|
| 656 | if (gp[procid].neighbors[DOWN] == -1) { |
|---|
| 657 | t1a = (double *) t2a[im - 1]; |
|---|
| 658 | for (j = firstcol; j <= lastcol; j++) { |
|---|
| 659 | sintemp = pi * ((double) j + j_off) * res / ysca1; |
|---|
| 660 | sintemp = sin(sintemp); |
|---|
| 661 | curlt = factor * sintemp; |
|---|
| 662 | t1a[j] = curlt; |
|---|
| 663 | } |
|---|
| 664 | } |
|---|
| 665 | if (gp[procid].neighbors[LEFT] == -1) { |
|---|
| 666 | for (j = firstrow; j <= lastrow; j++) { |
|---|
| 667 | t2a[j][0] = 0.0; |
|---|
| 668 | } |
|---|
| 669 | } |
|---|
| 670 | if (gp[procid].neighbors[RIGHT] == -1) { |
|---|
| 671 | sintemp = pi * ((double) jm - 1 + j_off) * res / ysca1; |
|---|
| 672 | sintemp = sin(sintemp); |
|---|
| 673 | curlt = factor * sintemp; |
|---|
| 674 | for (j = firstrow; j <= lastrow; j++) { |
|---|
| 675 | t2a[j][jm - 1] = curlt; |
|---|
| 676 | } |
|---|
| 677 | } |
|---|
| 678 | for (i = firstrow; i <= lastrow; i++) { |
|---|
| 679 | t1a = (double *) t2a[i]; |
|---|
| 680 | for (iindex = firstcol; iindex <= lastcol; iindex++) { |
|---|
| 681 | sintemp = pi * ((double) iindex + j_off) * res / ysca1; |
|---|
| 682 | sintemp = sin(sintemp); |
|---|
| 683 | curlt = factor * sintemp; |
|---|
| 684 | t1a[iindex] = curlt; |
|---|
| 685 | } |
|---|
| 686 | } |
|---|
| 687 | |
|---|
| 688 | #if defined(MULTIPLE_BARRIERS) |
|---|
| 689 | BARRIER(bars->sl_onetime, nprocs) |
|---|
| 690 | #else |
|---|
| 691 | BARRIER(bars->barrier, nprocs) |
|---|
| 692 | #endif |
|---|
| 693 | |
|---|
| 694 | /*************************************************************** |
|---|
| 695 | one-time stuff over at this point |
|---|
| 696 | ***************************************************************/ |
|---|
| 697 | while (!endflag) { |
|---|
| 698 | while ((!dayflag) || (!dhourflag)) { |
|---|
| 699 | dayflag = 0; |
|---|
| 700 | dhourflag = 0; |
|---|
| 701 | if (nstep == 1) { |
|---|
| 702 | for (i = 0; i < 10; i++) { |
|---|
| 703 | gp[procid].steps_time[i] = 0; |
|---|
| 704 | } |
|---|
| 705 | if (procid == MASTER) { |
|---|
| 706 | CLOCK(global->trackstart) |
|---|
| 707 | } |
|---|
| 708 | if ((procid == MASTER) || (do_stats)) { |
|---|
| 709 | CLOCK(t1); |
|---|
| 710 | (*gp[procid].total_time) = t1; |
|---|
| 711 | (*gp[procid].multi_time) = 0; |
|---|
| 712 | } |
|---|
| 713 | /* POSSIBLE ENHANCEMENT: Here is where one might reset the |
|---|
| 714 | statistics that one is measuring about the parallel execution */ |
|---|
| 715 | } |
|---|
| 716 | |
|---|
| 717 | slave2(procid, firstrow, lastrow, numrows, firstcol, lastcol, numcols); |
|---|
| 718 | |
|---|
| 719 | /* update time and step number |
|---|
| 720 | note that these time and step variables are private i.e. every |
|---|
| 721 | process has its own copy and keeps track of its own time */ |
|---|
| 722 | |
|---|
| 723 | ttime = ttime + dtau; |
|---|
| 724 | nstep = nstep + 1; |
|---|
| 725 | day = ttime / 86400.0; |
|---|
| 726 | |
|---|
| 727 | if (day > ((double) outday0)) { |
|---|
| 728 | dayflag = 1; |
|---|
| 729 | iday = (long) day; |
|---|
| 730 | dhour = dhour + dtau; |
|---|
| 731 | if (dhour >= 86400.0) { |
|---|
| 732 | dhourflag = 1; |
|---|
| 733 | } |
|---|
| 734 | } |
|---|
| 735 | } |
|---|
| 736 | dhour = 0.0; |
|---|
| 737 | |
|---|
| 738 | t2a = (double **) psium[procid]; |
|---|
| 739 | t2b = (double **) psim[procid][0]; |
|---|
| 740 | if ((gp[procid].neighbors[UP] == -1) && (gp[procid].neighbors[LEFT] == -1)) { |
|---|
| 741 | t2a[0][0] = t2a[0][0] + t2b[0][0]; |
|---|
| 742 | } |
|---|
| 743 | if ((gp[procid].neighbors[DOWN] == -1) && (gp[procid].neighbors[LEFT] == -1)) { |
|---|
| 744 | t2a[im - 1][0] = t2a[im - 1][0] + t2b[im - 1][0]; |
|---|
| 745 | } |
|---|
| 746 | if ((gp[procid].neighbors[UP] == -1) && (gp[procid].neighbors[RIGHT] == -1)) { |
|---|
| 747 | t2a[0][jm - 1] = t2a[0][jm - 1] + t2b[0][jm - 1]; |
|---|
| 748 | } |
|---|
| 749 | if ((gp[procid].neighbors[DOWN] == -1) && (gp[procid].neighbors[RIGHT] == -1)) { |
|---|
| 750 | t2a[im - 1][jm - 1] = t2a[im - 1][jm - 1] + t2b[im - 1][jm - 1]; |
|---|
| 751 | } |
|---|
| 752 | if (gp[procid].neighbors[UP] == -1) { |
|---|
| 753 | t1a = (double *) t2a[0]; |
|---|
| 754 | t1b = (double *) t2b[0]; |
|---|
| 755 | for (j = firstcol; j <= lastcol; j++) { |
|---|
| 756 | t1a[j] = t1a[j] + t1b[j]; |
|---|
| 757 | } |
|---|
| 758 | } |
|---|
| 759 | if (gp[procid].neighbors[DOWN] == -1) { |
|---|
| 760 | t1a = (double *) t2a[im - 1]; |
|---|
| 761 | t1b = (double *) t2b[im - 1]; |
|---|
| 762 | for (j = firstcol; j <= lastcol; j++) { |
|---|
| 763 | t1a[j] = t1a[j] + t1b[j]; |
|---|
| 764 | } |
|---|
| 765 | } |
|---|
| 766 | if (gp[procid].neighbors[LEFT] == -1) { |
|---|
| 767 | for (j = firstrow; j <= lastrow; j++) { |
|---|
| 768 | t2a[j][0] = t2a[j][0] + t2b[j][0]; |
|---|
| 769 | } |
|---|
| 770 | } |
|---|
| 771 | if (gp[procid].neighbors[RIGHT] == -1) { |
|---|
| 772 | for (j = firstrow; j <= lastrow; j++) { |
|---|
| 773 | t2a[j][jm - 1] = t2a[j][jm - 1] + t2b[j][jm - 1]; |
|---|
| 774 | } |
|---|
| 775 | } |
|---|
| 776 | for (i = firstrow; i <= lastrow; i++) { |
|---|
| 777 | t1a = (double *) t2a[i]; |
|---|
| 778 | t1b = (double *) t2b[i]; |
|---|
| 779 | for (iindex = firstcol; iindex <= lastcol; iindex++) { |
|---|
| 780 | t1a[iindex] = t1a[iindex] + t1b[iindex]; |
|---|
| 781 | } |
|---|
| 782 | } |
|---|
| 783 | |
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| 784 | /* update values of psilm array to psilm + psim[2] */ |
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| 785 | |
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| 786 | t2a = (double **) psilm[procid]; |
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| 787 | t2b = (double **) psim[procid][1]; |
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| 788 | if ((gp[procid].neighbors[UP] == -1) && (gp[procid].neighbors[LEFT] == -1)) { |
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| 789 | t2a[0][0] = t2a[0][0] + t2b[0][0]; |
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| 790 | } |
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| 791 | if ((gp[procid].neighbors[DOWN] == -1) && (gp[procid].neighbors[LEFT] == -1)) { |
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| 792 | t2a[im - 1][0] = t2a[im - 1][0] + t2b[im - 1][0]; |
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| 793 | } |
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| 794 | if ((gp[procid].neighbors[UP] == -1) && (gp[procid].neighbors[RIGHT] == -1)) { |
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| 795 | t2a[0][jm - 1] = t2a[0][jm - 1] + t2b[0][jm - 1]; |
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| 796 | } |
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| 797 | if ((gp[procid].neighbors[DOWN] == -1) && (gp[procid].neighbors[RIGHT] == -1)) { |
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| 798 | t2a[im - 1][jm - 1] = t2a[im - 1][jm - 1] + t2b[im - 1][jm - 1]; |
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| 799 | } |
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| 800 | if (gp[procid].neighbors[UP] == -1) { |
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| 801 | t1a = (double *) t2a[0]; |
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| 802 | t1b = (double *) t2b[0]; |
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| 803 | for (j = firstcol; j <= lastcol; j++) { |
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| 804 | t1a[j] = t1a[j] + t1b[j]; |
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| 805 | } |
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| 806 | } |
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| 807 | if (gp[procid].neighbors[DOWN] == -1) { |
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| 808 | t1a = (double *) t2a[im - 1]; |
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| 809 | t1b = (double *) t2b[im - 1]; |
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| 810 | for (j = firstcol; j <= lastcol; j++) { |
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| 811 | t1a[j] = t1a[j] + t1b[j]; |
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| 812 | } |
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| 813 | } |
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| 814 | if (gp[procid].neighbors[LEFT] == -1) { |
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| 815 | for (j = firstrow; j <= lastrow; j++) { |
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| 816 | t2a[j][0] = t2a[j][0] + t2b[j][0]; |
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| 817 | } |
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| 818 | } |
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| 819 | if (gp[procid].neighbors[RIGHT] == -1) { |
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| 820 | for (j = firstrow; j <= lastrow; j++) { |
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| 821 | t2a[j][jm - 1] = t2a[j][jm - 1] + t2b[j][jm - 1]; |
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| 822 | } |
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| 823 | } |
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| 824 | for (i = firstrow; i <= lastrow; i++) { |
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| 825 | t1a = (double *) t2a[i]; |
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| 826 | t1b = (double *) t2b[i]; |
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| 827 | for (iindex = firstcol; iindex <= lastcol; iindex++) { |
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| 828 | t1a[iindex] = t1a[iindex] + t1b[iindex]; |
|---|
| 829 | } |
|---|
| 830 | } |
|---|
| 831 | if (iday >= (long) outday3) { |
|---|
| 832 | endflag = 1; |
|---|
| 833 | } |
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| 834 | } |
|---|
| 835 | if ((procid == MASTER) || (do_stats)) { |
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| 836 | CLOCK(t1); |
|---|
| 837 | (*gp[procid].total_time) = t1 - (*gp[procid].total_time); |
|---|
| 838 | } |
|---|
| 839 | } |
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