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1 #include <stdio.h>
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2
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3 #define SIZE_TEXT (sizeof(text)-1)
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4 #define SIZE_END (sizeof(end)-1)
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5
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6 __device__ char text[] =
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7 "__ bottles of beer on the wall, __ bottles of beer!\n"
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8 "Take one down, and pass it around, ## bottles of beer on the wall!\n\n";
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9
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10 __device__ char end[] =
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11 "01 bottle of beer on the wall, 01 bottle of beer.\n"
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12 "Take one down and pass it around, no more bottles of beer on the wall.\n"
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13 "\n"
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14 "No more bottles of beer on the wall, no more bottles of beer.\n"
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15 "Go to the store and buy some more, 99 bottles of beer on the wall.";
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16
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17
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18 __global__
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19 void bottle99(char *addr){
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20 int x = threadIdx.x;
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21 addr += x * SIZE_TEXT;
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22 int bottle = 99 - x;
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23 if (bottle == 1) {
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24 for (int i=0; i<SIZE_END; i++) {
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25 addr[i] = end[i];
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26 }
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27 addr[SIZE_END] = '\0';
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28 } else {
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29 char c1 = (bottle/10) + '0';
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30 char c2 = (bottle%10) + '0';
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31
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32 char d1 = ((bottle-1)/10) + '0';
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33 char d2 = ((bottle-1)%10) + '0';
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34
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35 for (int i=0; i<SIZE_TEXT; i++) {
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36 int c = text[i];
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37 if (c == '_') {
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38 addr[i] = c1;
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39 addr[i+1] = c2;
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40 i++;
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41 } else if (c == '#') {
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42
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43 addr[i] = d1;
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44 addr[i+1] = d2;
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45 i++;
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46 } else {
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47
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48 addr[i] = text[i];
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49 }
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50 }
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51 }
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52 }
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53
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54 int main()
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55 {
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56 char *buffer;
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57 char *d_buffer;
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58
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59 int size = SIZE_TEXT * 98 + SIZE_END + 1;
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60
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61 buffer = new char[size];
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62 cudaMalloc((void**)&d_buffer, size);
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63
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64 bottle99<<<1, 99>>>(d_buffer);
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65
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66 cudaMemcpy(buffer, d_buffer, size, cudaMemcpyDeviceToHost);
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67 cudaFree(d_buffer);
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68
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69 puts(buffer);
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70 free(buffer);
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71 }
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72 |
