| 1 | /////////////////////////////////////////////////////////////////////////////////////// |
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| 2 | // File : main.c (for transpose application) |
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| 3 | // Date : february 2014 |
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| 4 | // author : Alain Greiner |
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| 5 | /////////////////////////////////////////////////////////////////////////////////////// |
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| 6 | // This multi-threaded application makes a transpose for a NN*NN pixels image. |
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| 7 | // It can run on a multi-processors, multi-clusters architecture, with one thread |
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| 8 | // per processor. |
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| 9 | // |
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| 10 | // The image is read from a file (one byte per pixel), transposed and |
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| 11 | // saved in a second file. Then the transposed image is read from the second file, |
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| 12 | // transposed again and saved in a third file. |
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| 13 | // |
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| 14 | // The input and output buffers containing the image are distributed in all clusters. |
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| 15 | // |
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| 16 | // - The image size NN must fit the frame buffer size. |
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| 17 | // - The block size in block device must be 512 bytes. |
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| 18 | // - The number of clusters must be a power of 2 no larger than 64. |
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| 19 | // - The number of processors per cluster must be a power of 2 no larger than 4. |
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| 20 | // |
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| 21 | // For each image the application makes a self test (checksum for each line). |
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| 22 | // The actual display on the frame buffer depends on frame buffer availability. |
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| 23 | /////////////////////////////////////////////////////////////////////////////////////// |
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| 24 | |
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| 25 | #include "stdio.h" |
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| 26 | #include "user_barrier.h" |
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| 27 | #include "malloc.h" |
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| 28 | |
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| 29 | #define BLOCK_SIZE 512 // block size on disk |
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| 30 | #define X_MAX 8 // max number of clusters in row |
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| 31 | #define Y_MAX 8 // max number of clusters in column |
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| 32 | #define PROCS_MAX 4 // max number of procs per cluster |
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| 33 | #define CLUSTER_MAX (X_MAX * Y_MAX) // max number of clusters |
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| 34 | #define NN 256 // image size : nlines = npixels |
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| 35 | #define INITIAL_FILE_PATH "/misc/lena_256.raw" // pathname on virtual disk |
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| 36 | #define TRANSPOSED_FILE_PATH "/home/lena_transposed.raw" // pathname on virtual disk |
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| 37 | #define RESTORED_FILE_PATH "/home/lena_restored.raw" // pathname on virtual disk |
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| 38 | #define INSTRUMENTATION_OK 1 // display statistics on TTY |
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| 39 | |
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| 40 | // macro to use a shared TTY |
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| 41 | #define printf(...) lock_acquire( &tty_lock ); \ |
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| 42 | giet_tty_printf(__VA_ARGS__); \ |
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| 43 | lock_release( &tty_lock ) |
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| 44 | |
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| 45 | /////////////////////////////////////////////////////// |
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| 46 | // global variables stored in seg_data in cluster(0,0) |
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| 47 | /////////////////////////////////////////////////////// |
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| 48 | |
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| 49 | // instrumentation counters for each processor in each cluster |
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| 50 | unsigned int LOAD_START[X_MAX][Y_MAX][PROCS_MAX] = {{{ 0 }}}; |
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| 51 | unsigned int LOAD_END [X_MAX][Y_MAX][PROCS_MAX] = {{{ 0 }}}; |
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| 52 | unsigned int TRSP_START[X_MAX][Y_MAX][PROCS_MAX] = {{{ 0 }}}; |
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| 53 | unsigned int TRSP_END [X_MAX][Y_MAX][PROCS_MAX] = {{{ 0 }}}; |
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| 54 | unsigned int DISP_START[X_MAX][Y_MAX][PROCS_MAX] = {{{ 0 }}}; |
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| 55 | unsigned int DISP_END [X_MAX][Y_MAX][PROCS_MAX] = {{{ 0 }}}; |
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| 56 | unsigned int STOR_START[X_MAX][Y_MAX][PROCS_MAX] = {{{ 0 }}}; |
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| 57 | unsigned int STOR_END [X_MAX][Y_MAX][PROCS_MAX] = {{{ 0 }}}; |
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| 58 | |
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| 59 | // arrays of pointers on distributed buffers |
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| 60 | // one input buffer & one output buffer per cluster |
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| 61 | unsigned char* buf_in [CLUSTER_MAX]; |
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| 62 | unsigned char* buf_out[CLUSTER_MAX]; |
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| 63 | |
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| 64 | // checksum variables |
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| 65 | unsigned check_line_before[NN]; |
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| 66 | unsigned check_line_after[NN]; |
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| 67 | |
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| 68 | // lock protecting shared TTY |
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| 69 | user_lock_t tty_lock; |
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| 70 | |
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| 71 | // global & local synchronisation variables |
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| 72 | giet_sqt_barrier_t barrier; |
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| 73 | |
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| 74 | volatile unsigned int global_init_ok = 0; |
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| 75 | volatile unsigned int local_init_ok[X_MAX][Y_MAX] = {{ 0 }}; |
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| 76 | |
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| 77 | ////////////////////////////////////////// |
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| 78 | __attribute__ ((constructor)) void main() |
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| 79 | ////////////////////////////////////////// |
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| 80 | { |
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| 81 | unsigned int l; // line index for loops |
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| 82 | unsigned int p; // pixel index for loops |
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| 83 | |
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| 84 | // processor identifiers |
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| 85 | unsigned int x; // x cluster coordinate |
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| 86 | unsigned int y; // y cluster coordinate |
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| 87 | unsigned int lpid; // local processor index |
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| 88 | |
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| 89 | // plat-form parameters |
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| 90 | unsigned int x_size; // number of clusters in a row |
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| 91 | unsigned int y_size; // number of clusters in a column |
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| 92 | unsigned int nprocs; // number of processors per cluster |
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| 93 | |
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| 94 | giet_proc_xyp( &x, &y, &lpid); |
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| 95 | |
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| 96 | giet_procs_number( &x_size , &y_size , &nprocs ); |
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| 97 | |
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| 98 | unsigned int nclusters = x_size * y_size; // number of clusters |
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| 99 | unsigned int ntasks = x_size * y_size * nprocs; // number of tasks |
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| 100 | unsigned int npixels = NN * NN; // pixels per image |
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| 101 | unsigned int iteration = 0; // iiteration iter |
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| 102 | int fd_initial = 0; // initial file descriptor |
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| 103 | int fd_transposed = 0; // transposed file descriptor |
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| 104 | int fd_restored = 0; // restored file descriptor |
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| 105 | unsigned int cluster_id = (x * y_size) + y; // "continuous" index |
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| 106 | unsigned int task_id = (cluster_id * nprocs) + lpid; // "continuous" task index |
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| 107 | |
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| 108 | // checking parameters |
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| 109 | giet_assert( ((nprocs == 1) || (nprocs == 2) || (nprocs == 4)), |
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| 110 | "[TRANSPOSE ERROR] number of procs per cluster must be 1, 2 or 4"); |
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| 111 | |
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| 112 | giet_assert( ((x_size == 1) || (x_size == 2) || (x_size == 4) || |
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| 113 | (x_size == 8) || (x_size == 16)), |
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| 114 | "[TRANSPOSE ERROR] x_size must be 1,2,4,8,16"); |
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| 115 | |
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| 116 | giet_assert( ((y_size == 1) || (y_size == 2) || (y_size == 4) || |
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| 117 | (y_size == 8) || (y_size == 16)), |
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| 118 | "[TRANSPOSE ERROR] y_size must be 1,2,4,8,16"); |
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| 119 | |
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| 120 | giet_assert( (ntasks <= NN ), |
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| 121 | "[TRANSPOSE ERROR] number of tasks larger than number of lines"); |
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| 122 | |
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| 123 | /////////////////////////////////////////////////////////////////////// |
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| 124 | // Processor [0,0,0] makes global initialisation |
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| 125 | // It includes parameters checking, heap and barrier initialization. |
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| 126 | // Others processors wait initialisation completion |
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| 127 | /////////////////////////////////////////////////////////////////////// |
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| 128 | |
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| 129 | if ( (x==0) && (y==0) && (lpid==0) ) |
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| 130 | { |
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| 131 | // shared TTY allocation |
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| 132 | giet_tty_alloc( 1 ); |
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| 133 | |
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| 134 | // TTY lock initialisation |
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| 135 | lock_init( &tty_lock); |
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| 136 | |
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| 137 | // distributed heap initialisation |
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| 138 | unsigned int cx , cy; |
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| 139 | for ( cx = 0 ; cx < x_size ; cx++ ) |
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| 140 | { |
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| 141 | for ( cy = 0 ; cy < y_size ; cy++ ) |
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| 142 | { |
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| 143 | heap_init( cx , cy ); |
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| 144 | } |
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| 145 | } |
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| 146 | |
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| 147 | // barrier initialisation |
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| 148 | sqt_barrier_init( &barrier, x_size , y_size , nprocs ); |
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| 149 | |
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| 150 | printf("\n[TRANSPOSE] Proc [0,0,0] completes initialisation at cycle %d\n", |
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| 151 | giet_proctime() ); |
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| 152 | |
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| 153 | global_init_ok = 1; |
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| 154 | } |
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| 155 | else |
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| 156 | { |
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| 157 | while ( global_init_ok == 0 ); |
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| 158 | } |
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| 159 | |
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| 160 | /////////////////////////////////////////////////////////////////////// |
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| 161 | // In each cluster, only task running on processor[x,y,0] allocates |
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| 162 | // the local buffers containing the images in the distributed heap |
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| 163 | // (one buf_in and one buf_out per cluster). |
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| 164 | // Other processors in cluster wait completion. |
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| 165 | /////////////////////////////////////////////////////////////////////// |
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| 166 | |
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| 167 | if ( lpid == 0 ) |
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| 168 | { |
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| 169 | buf_in[cluster_id] = remote_malloc( npixels/nclusters, x, y ); |
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| 170 | buf_out[cluster_id] = remote_malloc( npixels/nclusters, x, y ); |
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| 171 | |
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| 172 | if ( (x==0) && (y==0) ) |
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| 173 | printf("\n[TRANSPOSE] Proc [%d,%d,%d] completes buffer allocation" |
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| 174 | " for cluster[%d,%d] at cycle %d\n" |
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| 175 | " - buf_in = %x\n" |
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| 176 | " - buf_out = %x\n", |
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| 177 | x, y, lpid, x, y, giet_proctime(), |
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| 178 | (unsigned int)buf_in[cluster_id], (unsigned int)buf_out[cluster_id] ); |
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| 179 | |
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| 180 | /////////////////////////////////////////////////////////////////////// |
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| 181 | // In each cluster, only task running on procesor[x,y,0] open the |
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| 182 | // three private file descriptors for the three files |
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| 183 | /////////////////////////////////////////////////////////////////////// |
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| 184 | |
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| 185 | // open initial file |
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| 186 | fd_initial = giet_fat_open( INITIAL_FILE_PATH , O_RDONLY ); // read_only |
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| 187 | if ( fd_initial < 0 ) |
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| 188 | { |
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| 189 | printf("\n[TRANSPOSE ERROR] Proc [%d,%d,%d] cannot open file %s\n", |
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| 190 | x , y , lpid , INITIAL_FILE_PATH ); |
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| 191 | giet_exit(" open() failure"); |
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| 192 | } |
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| 193 | else if ( (x==0) && (y==0) && (lpid==0) ) |
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| 194 | { |
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| 195 | printf("\n[TRANSPOSE] Proc [0,0,0] open file %s / fd = %d\n", |
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| 196 | INITIAL_FILE_PATH , fd_initial ); |
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| 197 | } |
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| 198 | |
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| 199 | // open transposed file |
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| 200 | fd_transposed = giet_fat_open( TRANSPOSED_FILE_PATH , O_CREATE ); // create if required |
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| 201 | if ( fd_transposed < 0 ) |
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| 202 | { |
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| 203 | printf("\n[TRANSPOSE ERROR] Proc [%d,%d,%d] cannot open file %s\n", |
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| 204 | x , y , lpid , TRANSPOSED_FILE_PATH ); |
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| 205 | giet_exit(" open() failure"); |
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| 206 | } |
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| 207 | else if ( (x==0) && (y==0) && (lpid==0) ) |
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| 208 | { |
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| 209 | printf("\n[TRANSPOSE] Proc [0,0,0] open file %s / fd = %d\n", |
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| 210 | TRANSPOSED_FILE_PATH , fd_transposed ); |
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| 211 | } |
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| 212 | |
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| 213 | // open restored file |
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| 214 | fd_restored = giet_fat_open( RESTORED_FILE_PATH , O_CREATE ); // create if required |
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| 215 | if ( fd_restored < 0 ) |
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| 216 | { |
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| 217 | printf("\n[TRANSPOSE ERROR] Proc [%d,%d,%d] cannot open file %s\n", |
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| 218 | x , y , lpid , RESTORED_FILE_PATH ); |
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| 219 | giet_exit(" open() failure"); |
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| 220 | } |
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| 221 | else if ( (x==0) && (y==0) && (lpid==0) ) |
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| 222 | { |
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| 223 | printf("\n[TRANSPOSE] Proc [0,0,0] open file %s / fd = %d\n", |
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| 224 | RESTORED_FILE_PATH , fd_restored ); |
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| 225 | } |
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| 226 | |
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| 227 | local_init_ok[x][y] = 1; |
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| 228 | } |
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| 229 | else |
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| 230 | { |
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| 231 | while( local_init_ok[x][y] == 0 ); |
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| 232 | } |
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| 233 | |
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| 234 | /////////////////////////////////////////////////////////////////////// |
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| 235 | // Main loop / two iterations: |
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| 236 | // - first makes initial => transposed |
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| 237 | // - second makes transposed => restored |
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| 238 | // All processors execute this main loop. |
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| 239 | /////////////////////////////////////////////////////////////////////// |
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| 240 | |
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| 241 | unsigned int fd_in = fd_initial; |
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| 242 | unsigned int fd_out = fd_transposed; |
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| 243 | |
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| 244 | while (iteration < 2) |
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| 245 | { |
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| 246 | /////////////////////////////////////////////////////////////////////// |
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| 247 | // pseudo parallel load from disk to buf_in buffers: npixels/nclusters |
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| 248 | // only task running on processor(x,y,0) does it |
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| 249 | /////////////////////////////////////////////////////////////////////// |
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| 250 | |
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| 251 | LOAD_START[x][y][lpid] = giet_proctime(); |
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| 252 | |
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| 253 | if (lpid == 0) |
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| 254 | { |
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| 255 | unsigned int offset = ((npixels*cluster_id)/nclusters); |
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| 256 | if ( giet_fat_lseek( fd_in, |
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| 257 | offset, |
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| 258 | SEEK_SET ) != offset ) |
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| 259 | { |
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| 260 | printf("\n[TRANSPOSE ERROR] Proc [%d,%d,%d] cannot seek fd = %d\n", |
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| 261 | x , y , lpid , fd_in ); |
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| 262 | giet_exit(" seek() failure"); |
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| 263 | } |
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| 264 | |
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| 265 | unsigned int pixels = npixels / nclusters; |
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| 266 | if ( giet_fat_read( fd_in, |
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| 267 | buf_in[cluster_id], |
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| 268 | pixels ) != pixels ) |
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| 269 | { |
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| 270 | printf("\n[TRANSPOSE ERROR] Proc [%d,%d,%d] cannot read fd = %d\n", |
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| 271 | x , y , lpid , fd_in ); |
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| 272 | giet_exit(" read() failure"); |
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| 273 | } |
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| 274 | |
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| 275 | if ( (x==0) && (y==0) ) |
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| 276 | printf("\n[TRANSPOSE] Proc [%d,%d,%d] completes load" |
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| 277 | " for iteration %d at cycle %d\n", |
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| 278 | x, y, lpid, iteration, giet_proctime() ); |
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| 279 | } |
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| 280 | |
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| 281 | LOAD_END[x][y][lpid] = giet_proctime(); |
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| 282 | |
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| 283 | ///////////////////////////// |
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| 284 | sqt_barrier_wait( &barrier ); |
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| 285 | |
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| 286 | /////////////////////////////////////////////////////////////////////// |
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| 287 | // parallel transpose from buf_in to buf_out |
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| 288 | // each task makes the transposition for nlt lines (nlt = NN/ntasks) |
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| 289 | // from line [task_id*nlt] to line [(task_id + 1)*nlt - 1] |
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| 290 | // (p,l) are the absolute pixel coordinates in the source image |
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| 291 | /////////////////////////////////////////////////////////////////////// |
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| 292 | |
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| 293 | TRSP_START[x][y][lpid] = giet_proctime(); |
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| 294 | |
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| 295 | unsigned int nlt = NN / ntasks; // number of lines per task |
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| 296 | unsigned int nlc = NN / nclusters; // number of lines per cluster |
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| 297 | |
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| 298 | unsigned int src_cluster; |
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| 299 | unsigned int src_index; |
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| 300 | unsigned int dst_cluster; |
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| 301 | unsigned int dst_index; |
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| 302 | |
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| 303 | unsigned char byte; |
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| 304 | |
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| 305 | unsigned int first = task_id * nlt; // first line index for a given task |
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| 306 | unsigned int last = first + nlt; // last line index for a given task |
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| 307 | |
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| 308 | for ( l = first ; l < last ; l++ ) |
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| 309 | { |
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| 310 | check_line_before[l] = 0; |
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| 311 | |
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| 312 | // in each iteration we transfer one byte |
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| 313 | for ( p = 0 ; p < NN ; p++ ) |
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| 314 | { |
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| 315 | // read one byte from local buf_in |
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| 316 | src_cluster = l / nlc; |
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| 317 | src_index = (l % nlc)*NN + p; |
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| 318 | byte = buf_in[src_cluster][src_index]; |
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| 319 | |
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| 320 | // compute checksum |
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| 321 | check_line_before[l] = check_line_before[l] + byte; |
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| 322 | |
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| 323 | // write one byte to remote buf_out |
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| 324 | dst_cluster = p / nlc; |
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| 325 | dst_index = (p % nlc)*NN + l; |
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| 326 | buf_out[dst_cluster][dst_index] = byte; |
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| 327 | } |
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| 328 | } |
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| 329 | |
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| 330 | // if ( lpid == 0 ) |
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| 331 | { |
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| 332 | // if ( (x==0) && (y==0) ) |
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| 333 | printf("\n[TRANSPOSE] proc [%d,%d,0] completes transpose" |
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| 334 | " for iteration %d at cycle %d\n", |
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| 335 | x, y, iteration, giet_proctime() ); |
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| 336 | |
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| 337 | } |
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| 338 | TRSP_END[x][y][lpid] = giet_proctime(); |
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| 339 | |
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| 340 | ///////////////////////////// |
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| 341 | sqt_barrier_wait( &barrier ); |
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| 342 | |
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| 343 | /////////////////////////////////////////////////////////////////////// |
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| 344 | // parallel display from local buf_out to frame buffer |
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| 345 | // all tasks contribute to display using memcpy... |
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| 346 | /////////////////////////////////////////////////////////////////////// |
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| 347 | |
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| 348 | DISP_START[x][y][lpid] = giet_proctime(); |
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| 349 | |
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| 350 | unsigned int npt = npixels / ntasks; // number of pixels per task |
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| 351 | |
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| 352 | giet_fbf_sync_write( npt * task_id, |
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| 353 | &buf_out[cluster_id][lpid*npt], |
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| 354 | npt ); |
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| 355 | |
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| 356 | // if ( (x==0) && (y==0) && (lpid==0) ) |
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| 357 | printf("\n[TRANSPOSE] Proc [%d,%d,%d] completes display" |
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| 358 | " for iteration %d at cycle %d\n", |
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| 359 | x, y, lpid, iteration, giet_proctime() ); |
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| 360 | |
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| 361 | DISP_END[x][y][lpid] = giet_proctime(); |
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| 362 | |
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| 363 | ///////////////////////////// |
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| 364 | sqt_barrier_wait( &barrier ); |
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| 365 | |
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| 366 | /////////////////////////////////////////////////////////////////////// |
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| 367 | // pseudo parallel store : buf_out buffers to disk : npixels/nclusters |
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| 368 | // only task running on processor(x,y,0) does it |
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| 369 | /////////////////////////////////////////////////////////////////////// |
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| 370 | |
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| 371 | STOR_START[x][y][lpid] = giet_proctime(); |
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| 372 | |
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| 373 | if ( lpid == 0 ) |
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| 374 | { |
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| 375 | unsigned int offset = ((npixels*cluster_id)/nclusters); |
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| 376 | if ( giet_fat_lseek( fd_out, |
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| 377 | offset, |
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| 378 | SEEK_SET ) != offset ) |
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| 379 | { |
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| 380 | printf("\n[TRANSPOSE ERROR] Proc [%d,%d,%d] cannot seek fr = %d\n", |
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| 381 | x , y , lpid , fd_out ); |
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| 382 | giet_exit(" seek() failure"); |
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| 383 | } |
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| 384 | |
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| 385 | unsigned int pixels = npixels / nclusters; |
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| 386 | if ( giet_fat_write( fd_out, |
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| 387 | buf_out[cluster_id], |
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| 388 | pixels ) != pixels ) |
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| 389 | { |
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| 390 | printf("\n[TRANSPOSE ERROR] Proc [%d,%d,%d] cannot write fd = %d\n", |
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| 391 | x , y , lpid , fd_out ); |
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| 392 | giet_exit(" write() failure"); |
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| 393 | } |
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| 394 | |
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| 395 | if ( (x==0) && (y==0) ) |
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| 396 | printf("\n[TRANSPOSE] Proc [%d,%d,%d] completes store" |
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| 397 | " for iteration %d at cycle %d\n", |
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| 398 | x, y, lpid, iteration, giet_proctime() ); |
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| 399 | } |
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| 400 | |
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| 401 | STOR_END[x][y][lpid] = giet_proctime(); |
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| 402 | |
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| 403 | ///////////////////////////// |
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| 404 | sqt_barrier_wait( &barrier ); |
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| 405 | |
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| 406 | // instrumentation done by processor [0,0,0] |
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| 407 | if ( (x==0) && (y==0) && (lpid==0) && INSTRUMENTATION_OK ) |
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| 408 | { |
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| 409 | int cx , cy , pp ; |
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| 410 | unsigned int min_load_start = 0xFFFFFFFF; |
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| 411 | unsigned int max_load_start = 0; |
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| 412 | unsigned int min_load_ended = 0xFFFFFFFF; |
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| 413 | unsigned int max_load_ended = 0; |
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| 414 | unsigned int min_trsp_start = 0xFFFFFFFF; |
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| 415 | unsigned int max_trsp_start = 0; |
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| 416 | unsigned int min_trsp_ended = 0xFFFFFFFF; |
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| 417 | unsigned int max_trsp_ended = 0; |
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| 418 | unsigned int min_disp_start = 0xFFFFFFFF; |
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| 419 | unsigned int max_disp_start = 0; |
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| 420 | unsigned int min_disp_ended = 0xFFFFFFFF; |
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| 421 | unsigned int max_disp_ended = 0; |
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| 422 | unsigned int min_stor_start = 0xFFFFFFFF; |
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| 423 | unsigned int max_stor_start = 0; |
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| 424 | unsigned int min_stor_ended = 0xFFFFFFFF; |
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| 425 | unsigned int max_stor_ended = 0; |
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| 426 | |
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| 427 | for (cx = 0; cx < x_size; cx++) |
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| 428 | { |
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| 429 | for (cy = 0; cy < y_size; cy++) |
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| 430 | { |
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| 431 | for (pp = 0; pp < NB_PROCS_MAX; pp++) |
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| 432 | { |
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| 433 | if (LOAD_START[cx][cy][pp] < min_load_start) min_load_start = LOAD_START[cx][cy][pp]; |
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| 434 | if (LOAD_START[cx][cy][pp] > max_load_start) max_load_start = LOAD_START[cx][cy][pp]; |
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| 435 | if (LOAD_END[cx][cy][pp] < min_load_ended) min_load_ended = LOAD_END[cx][cy][pp]; |
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| 436 | if (LOAD_END[cx][cy][pp] > max_load_ended) max_load_ended = LOAD_END[cx][cy][pp]; |
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| 437 | if (TRSP_START[cx][cy][pp] < min_trsp_start) min_trsp_start = TRSP_START[cx][cy][pp]; |
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| 438 | if (TRSP_START[cx][cy][pp] > max_trsp_start) max_trsp_start = TRSP_START[cx][cy][pp]; |
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| 439 | if (TRSP_END[cx][cy][pp] < min_trsp_ended) min_trsp_ended = TRSP_END[cx][cy][pp]; |
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| 440 | if (TRSP_END[cx][cy][pp] > max_trsp_ended) max_trsp_ended = TRSP_END[cx][cy][pp]; |
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| 441 | if (DISP_START[cx][cy][pp] < min_disp_start) min_disp_start = DISP_START[cx][cy][pp]; |
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| 442 | if (DISP_START[cx][cy][pp] > max_disp_start) max_disp_start = DISP_START[cx][cy][pp]; |
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| 443 | if (DISP_END[cx][cy][pp] < min_disp_ended) min_disp_ended = DISP_END[cx][cy][pp]; |
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| 444 | if (DISP_END[cx][cy][pp] > max_disp_ended) max_disp_ended = DISP_END[cx][cy][pp]; |
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| 445 | if (STOR_START[cx][cy][pp] < min_stor_start) min_stor_start = STOR_START[cx][cy][pp]; |
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| 446 | if (STOR_START[cx][cy][pp] > max_stor_start) max_stor_start = STOR_START[cx][cy][pp]; |
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| 447 | if (STOR_END[cx][cy][pp] < min_stor_ended) min_stor_ended = STOR_END[cx][cy][pp]; |
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| 448 | if (STOR_END[cx][cy][pp] > max_stor_ended) max_stor_ended = STOR_END[cx][cy][pp]; |
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| 449 | } |
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| 450 | } |
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| 451 | } |
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| 452 | |
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| 453 | printf("\n ---------------- Instrumentation Results ---------------------\n"); |
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| 454 | |
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| 455 | printf(" - LOAD_START : min = %d / max = %d / med = %d / delta = %d\n", |
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| 456 | min_load_start, max_load_start, (min_load_start+max_load_start)/2, |
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| 457 | max_load_start-min_load_start); |
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| 458 | |
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| 459 | printf(" - LOAD_END : min = %d / max = %d / med = %d / delta = %d\n", |
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| 460 | min_load_ended, max_load_ended, (min_load_ended+max_load_ended)/2, |
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| 461 | max_load_ended-min_load_ended); |
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| 462 | |
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| 463 | printf(" - TRSP_START : min = %d / max = %d / med = %d / delta = %d\n", |
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| 464 | min_trsp_start, max_trsp_start, (min_trsp_start+max_trsp_start)/2, |
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| 465 | max_trsp_start-min_trsp_start); |
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| 466 | |
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| 467 | printf(" - TRSP_END : min = %d / max = %d / med = %d / delta = %d\n", |
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| 468 | min_trsp_ended, max_trsp_ended, (min_trsp_ended+max_trsp_ended)/2, |
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| 469 | max_trsp_ended-min_trsp_ended); |
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| 470 | |
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| 471 | printf(" - DISP_START : min = %d / max = %d / med = %d / delta = %d\n", |
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| 472 | min_disp_start, max_disp_start, (min_disp_start+max_disp_start)/2, |
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| 473 | max_disp_start-min_disp_start); |
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| 474 | |
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| 475 | printf(" - DISP_END : min = %d / max = %d / med = %d / delta = %d\n", |
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| 476 | min_disp_ended, max_disp_ended, (min_disp_ended+max_disp_ended)/2, |
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| 477 | max_disp_ended-min_disp_ended); |
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| 478 | |
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| 479 | printf(" - STOR_START : min = %d / max = %d / med = %d / delta = %d\n", |
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| 480 | min_stor_start, max_stor_start, (min_stor_start+max_stor_start)/2, |
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| 481 | max_stor_start-min_stor_start); |
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| 482 | |
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| 483 | printf(" - STOR_END : min = %d / max = %d / med = %d / delta = %d\n", |
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| 484 | min_stor_ended, max_stor_ended, (min_stor_ended+max_stor_ended)/2, |
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| 485 | max_stor_ended-min_stor_ended); |
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| 486 | } |
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| 487 | |
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| 488 | ///////////////////////////// |
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| 489 | sqt_barrier_wait( &barrier ); |
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| 490 | |
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| 491 | // update iteration variables |
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| 492 | fd_in = fd_transposed; |
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| 493 | fd_out = fd_restored; |
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| 494 | iteration++; |
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| 495 | |
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| 496 | } // end while |
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| 497 | |
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| 498 | /////////////////////////////////////////////////////////////////////// |
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| 499 | // In each cluster, only task running on Processor[x,y,0] releases |
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| 500 | // the distributed buffers and close the file descriptors. |
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| 501 | /////////////////////////////////////////////////////////////////////// |
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| 502 | |
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| 503 | if ( lpid==0 ) |
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| 504 | { |
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| 505 | free( buf_in[cluster_id] ); |
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| 506 | free( buf_out[cluster_id] ); |
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| 507 | |
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| 508 | giet_fat_close( fd_initial ); |
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| 509 | giet_fat_close( fd_transposed ); |
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| 510 | giet_fat_close( fd_restored ); |
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| 511 | } |
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| 512 | |
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| 513 | giet_exit("Completed"); |
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| 514 | |
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| 515 | } // end main() |
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| 516 | |
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| 517 | // Local Variables: |
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| 518 | // tab-width: 3 |
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| 519 | // c-basic-offset: |
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| 520 | // c-file-offsets:((innamespace . 0)(inline-open . 0)) |
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| 521 | // indent-tabs-mode: nil |
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| 522 | // End: |
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| 523 | |
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| 524 | // vim: filetype=cpp:expandtab:shiftwidth=3:tabstop=3:softtabstop=3 |
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| 525 | |
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| 526 | |
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| 527 | |
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