diff options
Diffstat (limited to 'baseline/source/dijkstra/dijkstra.c')
| -rw-r--r-- | baseline/source/dijkstra/dijkstra.c | 202 |
1 files changed, 0 insertions, 202 deletions
diff --git a/baseline/source/dijkstra/dijkstra.c b/baseline/source/dijkstra/dijkstra.c deleted file mode 100644 index 6602918..0000000 --- a/baseline/source/dijkstra/dijkstra.c +++ /dev/null | |||
| @@ -1,202 +0,0 @@ | |||
| 1 | /* | ||
| 2 | |||
| 3 | This program is part of the TACLeBench benchmark suite. | ||
| 4 | Version V 2.0 | ||
| 5 | |||
| 6 | Name: dijkstra | ||
| 7 | |||
| 8 | Author: unknown | ||
| 9 | |||
| 10 | Function: dijkstra finds the shortest path between nodes in a graph | ||
| 11 | |||
| 12 | Source: network section of MiBench | ||
| 13 | |||
| 14 | Changes: Made some variables local, compute checksum | ||
| 15 | |||
| 16 | License: GPL | ||
| 17 | |||
| 18 | */ | ||
| 19 | |||
| 20 | #include "extra.h" | ||
| 21 | #include "input.h" | ||
| 22 | |||
| 23 | /* | ||
| 24 | Definitions of symbolic constants | ||
| 25 | */ | ||
| 26 | #define NONE 9999 | ||
| 27 | #define OUT_OF_MEMORY -1 | ||
| 28 | #define QUEUE_SIZE 1000 | ||
| 29 | |||
| 30 | /* | ||
| 31 | Type declarations | ||
| 32 | */ | ||
| 33 | struct _NODE { | ||
| 34 | int dist; | ||
| 35 | int prev; | ||
| 36 | }; | ||
| 37 | |||
| 38 | struct _QITEM { | ||
| 39 | int node; | ||
| 40 | int dist; | ||
| 41 | int prev; | ||
| 42 | struct _QITEM *next; | ||
| 43 | }; | ||
| 44 | |||
| 45 | /* | ||
| 46 | Global variable definitions | ||
| 47 | */ | ||
| 48 | struct _NODE dijkstra_rgnNodes[NUM_NODES]; | ||
| 49 | |||
| 50 | int dijkstra_queueCount; | ||
| 51 | int dijkstra_queueNext; | ||
| 52 | struct _QITEM *dijkstra_queueHead; | ||
| 53 | struct _QITEM dijkstra_queueItems[QUEUE_SIZE]; | ||
| 54 | |||
| 55 | int dijkstra_checksum = 0; | ||
| 56 | |||
| 57 | /* | ||
| 58 | Forward declaration of functions | ||
| 59 | */ | ||
| 60 | void dijkstra_init( void ); | ||
| 61 | int dijkstra_return( void ); | ||
| 62 | int dijkstra_enqueue( int node, int dist, int prev ); | ||
| 63 | void dijkstra_dequeue( int *node, int *dist, int *prev ); | ||
| 64 | int dijkstra_qcount( void ); | ||
| 65 | int dijkstra_find( int chStart, int chEnd ); | ||
| 66 | void dijkstra_main( void ); | ||
| 67 | //int main( void ); | ||
| 68 | |||
| 69 | void dijkstra_init( void ) | ||
| 70 | { | ||
| 71 | int i, k; | ||
| 72 | volatile int x = 0; | ||
| 73 | _Pragma( "loopbound min 100 max 100" ) | ||
| 74 | for ( i = 0; i < NUM_NODES; i++ ) { | ||
| 75 | _Pragma( "loopbound min 100 max 100" ) | ||
| 76 | for ( k = 0; k < NUM_NODES; k++ ) { | ||
| 77 | dijkstra_AdjMatrix[i][k] ^= x; | ||
| 78 | } | ||
| 79 | } | ||
| 80 | |||
| 81 | dijkstra_queueCount = 0; | ||
| 82 | dijkstra_queueNext = 0; | ||
| 83 | dijkstra_queueHead = ( struct _QITEM * )0; | ||
| 84 | |||
| 85 | dijkstra_checksum = 0; | ||
| 86 | } | ||
| 87 | |||
| 88 | int dijkstra_return( void ) | ||
| 89 | { | ||
| 90 | return ( ( dijkstra_checksum == 25 ) ? 0 : -1 ); | ||
| 91 | } | ||
| 92 | |||
| 93 | int dijkstra_enqueue( int node, int dist, int prev ) | ||
| 94 | { | ||
| 95 | struct _QITEM *newItem = &dijkstra_queueItems[dijkstra_queueNext]; | ||
| 96 | struct _QITEM *last = dijkstra_queueHead; | ||
| 97 | |||
| 98 | if ( ++dijkstra_queueNext >= QUEUE_SIZE ) | ||
| 99 | return OUT_OF_MEMORY; | ||
| 100 | newItem->node = node; | ||
| 101 | newItem->dist = dist; | ||
| 102 | newItem->prev = prev; | ||
| 103 | newItem->next = 0; | ||
| 104 | |||
| 105 | if ( !last ) | ||
| 106 | dijkstra_queueHead = newItem; | ||
| 107 | else { | ||
| 108 | /* TODO: where does this magic loop bound come from? */ | ||
| 109 | _Pragma( "loopbound min 0 max 313" ) | ||
| 110 | while ( last->next ) | ||
| 111 | last = last->next; | ||
| 112 | last->next = newItem; | ||
| 113 | } | ||
| 114 | dijkstra_queueCount++; | ||
| 115 | return 0; | ||
| 116 | } | ||
| 117 | |||
| 118 | void dijkstra_dequeue( int *node, int *dist, int *prev ) | ||
| 119 | { | ||
| 120 | if ( dijkstra_queueHead ) { | ||
| 121 | *node = dijkstra_queueHead->node; | ||
| 122 | *dist = dijkstra_queueHead->dist; | ||
| 123 | *prev = dijkstra_queueHead->prev; | ||
| 124 | dijkstra_queueHead = dijkstra_queueHead->next; | ||
| 125 | dijkstra_queueCount--; | ||
| 126 | } | ||
| 127 | } | ||
| 128 | |||
| 129 | int dijkstra_qcount( void ) | ||
| 130 | { | ||
| 131 | return ( dijkstra_queueCount ); | ||
| 132 | } | ||
| 133 | |||
| 134 | int dijkstra_find( int chStart, int chEnd ) | ||
| 135 | { | ||
| 136 | int ch; | ||
| 137 | int prev, node; | ||
| 138 | int cost, dist; | ||
| 139 | int i; | ||
| 140 | |||
| 141 | _Pragma( "loopbound min 100 max 100" ) | ||
| 142 | for ( ch = 0; ch < NUM_NODES; ch++ ) { | ||
| 143 | dijkstra_rgnNodes[ch].dist = NONE; | ||
| 144 | dijkstra_rgnNodes[ch].prev = NONE; | ||
| 145 | } | ||
| 146 | |||
| 147 | if ( chStart == chEnd ) { | ||
| 148 | } else { | ||
| 149 | dijkstra_rgnNodes[chStart].dist = 0; | ||
| 150 | dijkstra_rgnNodes[chStart].prev = NONE; | ||
| 151 | |||
| 152 | if ( dijkstra_enqueue ( chStart, 0, NONE ) == OUT_OF_MEMORY ) | ||
| 153 | return OUT_OF_MEMORY; | ||
| 154 | |||
| 155 | /* TODO: where does this magic loop bound come from? */ | ||
| 156 | _Pragma( "loopbound min 618 max 928" ) | ||
| 157 | while ( dijkstra_qcount() > 0 ) { | ||
| 158 | dijkstra_dequeue ( &node, &dist, &prev ); | ||
| 159 | _Pragma( "loopbound min 100 max 100" ) | ||
| 160 | for ( i = 0; i < NUM_NODES; i++ ) { | ||
| 161 | if ( ( cost = dijkstra_AdjMatrix[node][i] ) != NONE ) { | ||
| 162 | if ( ( NONE == dijkstra_rgnNodes[i].dist ) || | ||
| 163 | ( dijkstra_rgnNodes[i].dist > ( cost + dist ) ) ) { | ||
| 164 | dijkstra_rgnNodes[i].dist = dist + cost; | ||
| 165 | dijkstra_rgnNodes[i].prev = node; | ||
| 166 | if ( dijkstra_enqueue ( i, dist + cost, node ) == OUT_OF_MEMORY ) | ||
| 167 | return OUT_OF_MEMORY; | ||
| 168 | } | ||
| 169 | } | ||
| 170 | } | ||
| 171 | } | ||
| 172 | } | ||
| 173 | return 0; | ||
| 174 | } | ||
| 175 | |||
| 176 | void _Pragma( "entrypoint" ) dijkstra_main( void ) | ||
| 177 | { | ||
| 178 | int i, j; | ||
| 179 | |||
| 180 | /* finds 20 shortest paths between nodes */ | ||
| 181 | _Pragma( "loopbound min 20 max 20" ) | ||
| 182 | for ( i = 0, j = NUM_NODES / 2; i < 20; i++, j++ ) { | ||
| 183 | j = j % NUM_NODES; | ||
| 184 | if ( dijkstra_find( i, j ) == OUT_OF_MEMORY ) { | ||
| 185 | dijkstra_checksum += OUT_OF_MEMORY; | ||
| 186 | return; | ||
| 187 | } else | ||
| 188 | dijkstra_checksum += dijkstra_rgnNodes[j].dist; | ||
| 189 | dijkstra_queueNext = 0; | ||
| 190 | } | ||
| 191 | } | ||
| 192 | |||
| 193 | int main(int argc, char** argv ) | ||
| 194 | { | ||
| 195 | SET_UP | ||
| 196 | for_each_job { | ||
| 197 | dijkstra_init(); | ||
| 198 | dijkstra_main(); | ||
| 199 | } | ||
| 200 | WRITE_TO_FILE | ||
| 201 | return ( dijkstra_return() ); | ||
| 202 | } | ||
