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| author | Joshua Bakita <jbakita@cs.unc.edu> | 2020-10-16 16:55:14 -0400 |
|---|---|---|
| committer | Joshua Bakita <jbakita@cs.unc.edu> | 2020-10-16 16:55:14 -0400 |
| commit | 6ea9939e0610a809f6f47d13ec68df00d1ca0afc (patch) | |
| tree | fe4a2eee3ddcf77e2367309dcd75a232b76dcd62 /dis/Pointer/pointer.c | |
| parent | e9285d0cdea756a2830f0ace378e4197b36869aa (diff) | |
Move the DIS benchmarks up a directory and update hardcoded paths
Note that this repo does not attempt to keep a copy of the original
DIS benchmark distributions. UNC real-time has another repo for that.
Diffstat (limited to 'dis/Pointer/pointer.c')
| -rw-r--r-- | dis/Pointer/pointer.c | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/dis/Pointer/pointer.c b/dis/Pointer/pointer.c new file mode 100644 index 0000000..5671697 --- /dev/null +++ b/dis/Pointer/pointer.c | |||
| @@ -0,0 +1,159 @@ | |||
| 1 | /* | ||
| 2 | * Sample code for the DIS Pointer Stressmark | ||
| 3 | * | ||
| 4 | * This source code is the completely correct source code based on | ||
| 5 | * the example codes provided by Atlantic Aerospace Division, Titan | ||
| 6 | * Systems Corporation, 2000. | ||
| 7 | * | ||
| 8 | * If you just compile and generate the executables from this source | ||
| 9 | * code, this code would be enough. However, if you wish to get a complete | ||
| 10 | * understanding of this stressmark, it is strongly suggested that you | ||
| 11 | * read the Benchmark Analysis and Specifications Document Version 1.0 | ||
| 12 | * before going on since the detailed comments are given in this documents. | ||
| 13 | * the comments are not repeated here. | ||
| 14 | */ | ||
| 15 | #include <stdio.h> | ||
| 16 | #include <time.h> | ||
| 17 | #include <assert.h> | ||
| 18 | #include <stdlib.h> | ||
| 19 | #include "DISstressmarkRNG.h" | ||
| 20 | #include "extra.h" | ||
| 21 | |||
| 22 | #define MIN_FIELD_SIZE 16 | ||
| 23 | #define MAX_FIELD_SIZE (16777216*4) // Modifed from original | ||
| 24 | #define MIN_WINDOW_SIZE 1 | ||
| 25 | #define MAX_WINDOW_SIZE 15 | ||
| 26 | #define MIN_HOP_LIMIT 1 | ||
| 27 | |||
| 28 | #define MAX_HOP_LIMIT 4294967295U | ||
| 29 | |||
| 30 | #define MIN_SEED -2147483647 | ||
| 31 | #define MAX_SEED -1 | ||
| 32 | #define MIN_THREADS 1 | ||
| 33 | #define MAX_THREADS 256 | ||
| 34 | |||
| 35 | /* | ||
| 36 | * main() | ||
| 37 | */ | ||
| 38 | int main(int argc, char** argv){ | ||
| 39 | |||
| 40 | unsigned int *field; | ||
| 41 | unsigned int f; | ||
| 42 | unsigned short int w; | ||
| 43 | unsigned int maxhops; | ||
| 44 | int seed; | ||
| 45 | unsigned int n; | ||
| 46 | |||
| 47 | clock_t startTime; | ||
| 48 | |||
| 49 | struct threadS{ | ||
| 50 | unsigned int initial; | ||
| 51 | unsigned int minStop; | ||
| 52 | unsigned int maxStop; | ||
| 53 | unsigned int hops; | ||
| 54 | }*thread; | ||
| 55 | |||
| 56 | unsigned int l; | ||
| 57 | SET_UP | ||
| 58 | |||
| 59 | assert(fscanf(stdin, "%lu %u %lu %ld %u", | ||
| 60 | &f, &l, &maxhops, &seed, &n) == 5); | ||
| 61 | |||
| 62 | assert ((f >= MIN_FIELD_SIZE) && (f <= MAX_FIELD_SIZE)); | ||
| 63 | w = (unsigned int) l; | ||
| 64 | assert ((w >= MIN_WINDOW_SIZE) && (w <= MAX_WINDOW_SIZE)); | ||
| 65 | assert (w % 2 == 1); | ||
| 66 | assert (f > w); | ||
| 67 | assert ((maxhops >= MIN_HOP_LIMIT) && (maxhops <= MAX_HOP_LIMIT)); | ||
| 68 | assert ((seed >= MIN_SEED) && (seed <= MAX_SEED)); | ||
| 69 | |||
| 70 | assert ((n >= MIN_THREADS) && (n <= MAX_THREADS)); | ||
| 71 | if ((thread = (struct threadS *)malloc(n*sizeof(struct threadS))) == NULL) | ||
| 72 | return (-1); | ||
| 73 | |||
| 74 | for (l=0; l<n; l++){ | ||
| 75 | assert(fscanf(stdin, "%lu %lu %lu", | ||
| 76 | &(thread[l].initial), &(thread[l].minStop), &(thread[l].maxStop)) == 3); | ||
| 77 | assert ((thread[l].initial >= 0) && (thread[l].initial < f)); | ||
| 78 | assert ((thread[l].minStop >= 0) && (thread[l].minStop < f)); | ||
| 79 | assert ((thread[l].maxStop >= 0) && (thread[l].maxStop < f)); | ||
| 80 | } | ||
| 81 | |||
| 82 | if ((field = (unsigned int *)malloc(f*sizeof(int))) == NULL) | ||
| 83 | return (-1); | ||
| 84 | |||
| 85 | randInit(seed); | ||
| 86 | for (l=0; l<f; l++){ | ||
| 87 | field[l] = randInt(0, f-w); | ||
| 88 | } | ||
| 89 | startTime = time(NULL); | ||
| 90 | clock(); | ||
| 91 | |||
| 92 | for (l=0; l<n; l++) | ||
| 93 | { | ||
| 94 | START_LOOP | ||
| 95 | unsigned int index; | ||
| 96 | unsigned int minStop, maxStop; | ||
| 97 | unsigned int hops; | ||
| 98 | |||
| 99 | hops = 0; | ||
| 100 | minStop = thread[l].minStop; | ||
| 101 | maxStop = thread[l].maxStop; | ||
| 102 | index = thread[l].initial; | ||
| 103 | while ((hops < maxhops) && | ||
| 104 | (!((index >= minStop) && | ||
| 105 | (index < maxStop)))){ | ||
| 106 | |||
| 107 | unsigned int ll, lll; | ||
| 108 | unsigned int max, min; | ||
| 109 | unsigned int partition; | ||
| 110 | unsigned int high; | ||
| 111 | |||
| 112 | partition = field[index]; | ||
| 113 | max = MAX_FIELD_SIZE; | ||
| 114 | min = 0; | ||
| 115 | high = 0; | ||
| 116 | |||
| 117 | for (ll=0; ll<w; ll++){ | ||
| 118 | unsigned int balance; | ||
| 119 | unsigned int x; | ||
| 120 | x = field[index+ll]; | ||
| 121 | |||
| 122 | if (x > max) high++; | ||
| 123 | else if (x > min){ /* start else* */ | ||
| 124 | partition = x; | ||
| 125 | balance = 0; | ||
| 126 | for (lll=ll+1; lll<w; lll++){ | ||
| 127 | if (field[index+lll] > partition) balance++; | ||
| 128 | }/* end for loop */ | ||
| 129 | |||
| 130 | if (balance+high == w/2) break; | ||
| 131 | else if (balance+high > w/2){ | ||
| 132 | min = partition; | ||
| 133 | }/* end if */ | ||
| 134 | else { | ||
| 135 | max = partition; | ||
| 136 | high++; | ||
| 137 | }/* end else */ | ||
| 138 | } | ||
| 139 | if (min == max) break; | ||
| 140 | } /* end else* */ | ||
| 141 | index = (partition+hops)%(f-w); | ||
| 142 | hops++; | ||
| 143 | }/* end loop ll */ | ||
| 144 | thread[l].hops = hops; | ||
| 145 | STOP_LOOP | ||
| 146 | } /* end while */ | ||
| 147 | |||
| 148 | startTime = time(NULL) - startTime; | ||
| 149 | |||
| 150 | for (l=0; l<n; l++){ | ||
| 151 | fprintf(stdout, "%lu hops on thread %d\n", thread[l].hops, l); | ||
| 152 | } | ||
| 153 | |||
| 154 | fprintf(stderr, "total time = %u seconds.\n", (unsigned int)startTime); | ||
| 155 | free (field); | ||
| 156 | free (thread); | ||
| 157 | WRITE_TO_FILE | ||
| 158 | |||
| 159 | } | ||
