1 | /* |
---|
2 | * sort.c - Parallel sort |
---|
3 | * |
---|
4 | * Author Cesar Fuguet Tortolero (2013) |
---|
5 | * Alain Greiner (2019) |
---|
6 | * |
---|
7 | * Copyright (c) UPMC Sorbonne Universites |
---|
8 | * |
---|
9 | * This is free software; you can redistribute it and/or modify it |
---|
10 | * under the terms of the GNU General Public License as published by |
---|
11 | * the Free Software Foundation; version 2.0 of the License. |
---|
12 | * |
---|
13 | * It is distributed in the hope that it will be useful, but |
---|
14 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
---|
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
---|
16 | * General Public License for more details. |
---|
17 | * |
---|
18 | * You should have received a copy of the GNU General Public License |
---|
19 | * along with ALMOS-MKH; if not, write to the Free Software Foundation, |
---|
20 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
---|
21 | */ |
---|
22 | |
---|
23 | /////////////////////////////////////////////////////////////////////////////// |
---|
24 | // This multi-threaded application implement a multi-stage sort. |
---|
25 | // It has been writen by Cesar Fuget Tortolero in 2013. |
---|
26 | // It has been ported on ALMOS-MKH by Alain Greiner in 2019. |
---|
27 | // |
---|
28 | // There is one thread per physical cores. |
---|
29 | // Computation is organised as a binary tree: |
---|
30 | // - All threads execute in parallel a buble sort on a sub-array during the |
---|
31 | // the first stage of parallel sort, |
---|
32 | // - The number of participating threads is divided by 2 at each next stage, |
---|
33 | // to make a merge sort, on two subsets of previous stage. |
---|
34 | // |
---|
35 | // Number_of_stages = number of barriers = log2(Number_of_threads) |
---|
36 | // |
---|
37 | // The various stages are separated by synchronisation barriers, and the |
---|
38 | // main thread uses the join syscall to check that all threads completed |
---|
39 | // before printing the computation time (sequencial & parallel). |
---|
40 | // These results can be - optionnaly - registered in an instrumentation file. |
---|
41 | // |
---|
42 | // Constraints : |
---|
43 | // - It supports up to 1024 cores: x_size, y_size, and ncores must be |
---|
44 | // power of 2 (max 16*16 clusters / max 4 cores per cluster) |
---|
45 | // _ The array of values to be sorted (ARRAY_LENGTH) must be power of 2 |
---|
46 | // larger than the number of cores. |
---|
47 | /////////////////////////////////////////////////////////////////////////////// |
---|
48 | |
---|
49 | #include <stdio.h> |
---|
50 | #include <stdlib.h> |
---|
51 | #include <unistd.h> |
---|
52 | #include <pthread.h> |
---|
53 | #include <almosmkh.h> |
---|
54 | #include <hal_macros.h> |
---|
55 | |
---|
56 | #define ARRAY_LENGTH 128 // number of items |
---|
57 | #define MAX_THREADS 1024 // 16 * 16 * 4 |
---|
58 | |
---|
59 | #define USE_DQT_BARRIER 1 // use DQT barrier if non zero |
---|
60 | #define DISPLAY_ARRAY 0 // display items values before and after |
---|
61 | #define DEBUG_MAIN 0 // trace main function |
---|
62 | #define DEBUG_SORT 0 // trace sort function |
---|
63 | #define CHECK_RESULT 0 // for debug |
---|
64 | #define INSTRUMENTATION 1 // register computation times on file |
---|
65 | |
---|
66 | ///////////////////////////////////////////////////////////// |
---|
67 | // argument for the sort() function (one thread per core) |
---|
68 | ///////////////////////////////////////////////////////////// |
---|
69 | |
---|
70 | typedef struct |
---|
71 | { |
---|
72 | unsigned int threads; // total number of threads |
---|
73 | unsigned int thread_uid; // thread user index (0 to threads -1) |
---|
74 | unsigned int main_uid; // main thread user index |
---|
75 | } |
---|
76 | args_t; |
---|
77 | |
---|
78 | ////////////////////////////////////////// |
---|
79 | // Global variables |
---|
80 | ////////////////////////////////////////// |
---|
81 | |
---|
82 | int array0[ARRAY_LENGTH]; // values to sort |
---|
83 | int array1[ARRAY_LENGTH]; |
---|
84 | |
---|
85 | pthread_barrier_t barrier; // synchronisation variables |
---|
86 | |
---|
87 | pthread_t trdid[MAX_THREADS]; // kernel identifiers |
---|
88 | pthread_attr_t attr[MAX_THREADS]; // thread attributes |
---|
89 | args_t arg[MAX_THREADS]; // sort function arguments |
---|
90 | |
---|
91 | //////////////////////////////////// |
---|
92 | static void bubbleSort( int * array, |
---|
93 | unsigned int length, |
---|
94 | unsigned int init_pos ) |
---|
95 | { |
---|
96 | unsigned int i; |
---|
97 | unsigned int j; |
---|
98 | int aux; |
---|
99 | |
---|
100 | for(i = 0; i < length; i++) |
---|
101 | { |
---|
102 | for(j = init_pos; j < (init_pos + length - i - 1); j++) |
---|
103 | { |
---|
104 | if(array[j] > array[j + 1]) |
---|
105 | { |
---|
106 | aux = array[j + 1]; |
---|
107 | array[j + 1] = array[j]; |
---|
108 | array[j] = aux; |
---|
109 | } |
---|
110 | } |
---|
111 | } |
---|
112 | } // end bubbleSort() |
---|
113 | |
---|
114 | |
---|
115 | /////////////////////////////////// |
---|
116 | static void merge( const int * src, // source array |
---|
117 | int * dst, // destination array |
---|
118 | int length, // number of items in a subset |
---|
119 | int init_pos_src_a, // index first item in src subset A |
---|
120 | int init_pos_src_b, // index first item in src subset B |
---|
121 | int init_pos_dst ) // index first item in destination |
---|
122 | { |
---|
123 | int i; |
---|
124 | int j; |
---|
125 | int k; |
---|
126 | |
---|
127 | i = 0; |
---|
128 | j = 0; |
---|
129 | k = init_pos_dst; |
---|
130 | |
---|
131 | while((i < length) || (j < length)) |
---|
132 | { |
---|
133 | if((i < length) && (j < length)) |
---|
134 | { |
---|
135 | if(src[init_pos_src_a + i] < src[init_pos_src_b + j]) |
---|
136 | { |
---|
137 | dst[k++] = src[init_pos_src_a + i]; |
---|
138 | i++; |
---|
139 | } |
---|
140 | else |
---|
141 | { |
---|
142 | dst[k++] = src[init_pos_src_b + j]; |
---|
143 | j++; |
---|
144 | } |
---|
145 | } |
---|
146 | else if(i < length) |
---|
147 | { |
---|
148 | dst[k++] = src[init_pos_src_a + i]; |
---|
149 | i++; |
---|
150 | } |
---|
151 | else |
---|
152 | { |
---|
153 | dst[k++] = src[init_pos_src_b + j]; |
---|
154 | j++; |
---|
155 | } |
---|
156 | } |
---|
157 | } // end merge() |
---|
158 | |
---|
159 | ////////////////////////////////////// |
---|
160 | static void sort( const args_t * ptr ) |
---|
161 | { |
---|
162 | unsigned int i; |
---|
163 | unsigned long long cycle; |
---|
164 | unsigned int cxy; |
---|
165 | unsigned int lid; |
---|
166 | |
---|
167 | int * src_array = NULL; |
---|
168 | int * dst_array = NULL; |
---|
169 | |
---|
170 | // get core coordinates an date |
---|
171 | get_core( &cxy , &lid ); |
---|
172 | get_cycle( &cycle ); |
---|
173 | |
---|
174 | unsigned int thread_uid = ptr->thread_uid; |
---|
175 | unsigned int threads = ptr->threads; |
---|
176 | unsigned int main_uid = ptr->main_uid; |
---|
177 | |
---|
178 | #if DISPLAY_ARRAY |
---|
179 | unsigned int n; |
---|
180 | if( thread_uid == main_uid ) |
---|
181 | { |
---|
182 | printf("\n*** array before sort\n"); |
---|
183 | for( n=0; n<ARRAY_LENGTH; n++) printf("array[%d] = %d\n", n , array0[n] ); |
---|
184 | } |
---|
185 | #endif |
---|
186 | |
---|
187 | ///////////////////////////////// |
---|
188 | pthread_barrier_wait( &barrier ); |
---|
189 | |
---|
190 | #if DEBUG_SORT |
---|
191 | if( thread_uid == 0 ) |
---|
192 | printf("\n[sort] thread[%d] exit barrier 0\n", thread_uid ); |
---|
193 | #endif |
---|
194 | |
---|
195 | unsigned int items = ARRAY_LENGTH / threads; |
---|
196 | unsigned int stages = __builtin_ctz( threads ) + 1; |
---|
197 | |
---|
198 | #if DEBUG_SORT |
---|
199 | if( thread_uid == 0 ) |
---|
200 | printf("\n[sort] thread[%d] : start\n", thread_uid ); |
---|
201 | #endif |
---|
202 | |
---|
203 | bubbleSort( array0, items, items * thread_uid ); |
---|
204 | |
---|
205 | #if DEBUG_SORT |
---|
206 | if( thread_uid == 0 ) |
---|
207 | printf("\n[sort] thread[%d] : stage 0 completed\n", thread_uid ); |
---|
208 | #endif |
---|
209 | |
---|
210 | ///////////////////////////////// |
---|
211 | pthread_barrier_wait( &barrier ); |
---|
212 | |
---|
213 | #if DEBUG_SORT |
---|
214 | if( thread_uid == 0 ) |
---|
215 | printf("\n[sort] thread[%d] exit barrier 0\n", thread_uid ); |
---|
216 | #endif |
---|
217 | |
---|
218 | #if DISPLAY_ARRAY |
---|
219 | if( thread_uid == main_uid ) |
---|
220 | { |
---|
221 | printf("\n*** array after bubble sort\n"); |
---|
222 | for( n=0; n<ARRAY_LENGTH; n++) printf("array[%d] = %d\n", n , array0[n] ); |
---|
223 | } |
---|
224 | #endif |
---|
225 | |
---|
226 | // the number of threads contributing to sort is divided by 2 |
---|
227 | // and the number of items is multiplied by 2 at each next stage |
---|
228 | for ( i = 1 ; i < stages ; i++ ) |
---|
229 | { |
---|
230 | if((i % 2) == 1) // odd stage |
---|
231 | { |
---|
232 | src_array = array0; |
---|
233 | dst_array = array1; |
---|
234 | } |
---|
235 | else // even stage |
---|
236 | { |
---|
237 | src_array = array1; |
---|
238 | dst_array = array0; |
---|
239 | } |
---|
240 | |
---|
241 | if( (thread_uid & ((1<<i)-1)) == 0 ) |
---|
242 | { |
---|
243 | |
---|
244 | #if DEBUG_SORT |
---|
245 | if( thread_uid == 0 ) |
---|
246 | printf("\n[sort] thread[%d] : stage %d start\n", thread_uid , i ); |
---|
247 | #endif |
---|
248 | merge( src_array, |
---|
249 | dst_array, |
---|
250 | items << (i-1), |
---|
251 | items * thread_uid, |
---|
252 | items * (thread_uid + (1 << (i-1))), |
---|
253 | items * thread_uid ); |
---|
254 | |
---|
255 | #if DEBUG_SORT |
---|
256 | if( thread_uid == 0 ) |
---|
257 | printf("\n[sort] thread[%d] : stage %d completed\n", thread_uid , i ); |
---|
258 | #endif |
---|
259 | } |
---|
260 | |
---|
261 | ///////////////////////////////// |
---|
262 | pthread_barrier_wait( &barrier ); |
---|
263 | |
---|
264 | #if DEBUG_SORT |
---|
265 | if( thread_uid == 0 ) |
---|
266 | printf("\n[sort] thread[%d] exit barrier %d\n", thread_uid , i ); |
---|
267 | #endif |
---|
268 | |
---|
269 | #if DISPLAY_ARRAY |
---|
270 | if( thread_uid == main_uid ) |
---|
271 | { |
---|
272 | printf("\n*** array after merge %d\n", i ); |
---|
273 | for( n=0; n<ARRAY_LENGTH; n++) printf("array[%d] = %d\n", n , dst_array[n] ); |
---|
274 | } |
---|
275 | #endif |
---|
276 | |
---|
277 | } // en for stages |
---|
278 | |
---|
279 | // all threads but the main thread exit |
---|
280 | if( thread_uid != main_uid ) pthread_exit( NULL ); |
---|
281 | |
---|
282 | } // end sort() |
---|
283 | |
---|
284 | |
---|
285 | ///////////////// |
---|
286 | void main( void ) |
---|
287 | { |
---|
288 | int error; |
---|
289 | unsigned int x_size; // number of rows |
---|
290 | unsigned int y_size; // number of columns |
---|
291 | unsigned int ncores; // number of cores per cluster |
---|
292 | unsigned int total_threads; // total number of threads |
---|
293 | unsigned int thread_uid; // user defined thread index |
---|
294 | unsigned int main_cxy; // cluster identifier for main |
---|
295 | unsigned int main_x; // X coordinate for main thread |
---|
296 | unsigned int main_y; // Y coordinate for main thread |
---|
297 | unsigned int main_lid; // core local index for main thread |
---|
298 | unsigned int main_uid; // thread user index for main thread |
---|
299 | unsigned int x; // X coordinate for a thread |
---|
300 | unsigned int y; // Y coordinate for a thread |
---|
301 | unsigned int lid; // core local index for a thread |
---|
302 | unsigned int n; // index in array to sort |
---|
303 | pthread_barrierattr_t barrier_attr; // barrier attributes |
---|
304 | |
---|
305 | unsigned long long start_cycle; |
---|
306 | unsigned long long seq_end_cycle; |
---|
307 | unsigned long long para_end_cycle; |
---|
308 | |
---|
309 | ///////////////////////// |
---|
310 | get_cycle( &start_cycle ); |
---|
311 | |
---|
312 | // compute number of threads (one thread per core) |
---|
313 | get_config( &x_size , &y_size , &ncores ); |
---|
314 | total_threads = x_size * y_size * ncores; |
---|
315 | |
---|
316 | // get core coordinates and user index for the main thread |
---|
317 | get_core( &main_cxy , & main_lid ); |
---|
318 | main_x = HAL_X_FROM_CXY( main_cxy ); |
---|
319 | main_y = HAL_Y_FROM_CXY( main_cxy ); |
---|
320 | main_uid = (((main_x * y_size) + main_y) * ncores) + main_lid; |
---|
321 | |
---|
322 | // checks number of threads |
---|
323 | if ( (total_threads != 1) && (total_threads != 2) && (total_threads != 4) && |
---|
324 | (total_threads != 8) && (total_threads != 16 ) && (total_threads != 32) && |
---|
325 | (total_threads != 64) && (total_threads != 128) && (total_threads != 256) && |
---|
326 | (total_threads != 512) && (total_threads != 1024) ) |
---|
327 | { |
---|
328 | printf("\n[sort error] number of cores must be power of 2\n"); |
---|
329 | exit( 0 ); |
---|
330 | } |
---|
331 | |
---|
332 | // check array size |
---|
333 | if ( ARRAY_LENGTH % total_threads) |
---|
334 | { |
---|
335 | printf("\n[sort error] array size must be multiple of number of threads\n"); |
---|
336 | exit( 0 ); |
---|
337 | } |
---|
338 | |
---|
339 | printf("\n[sort] main starts / %d threads / %d items / pid %x / cycle %d\n", |
---|
340 | total_threads, ARRAY_LENGTH, getpid(), (unsigned int)start_cycle ); |
---|
341 | |
---|
342 | // initialize barrier |
---|
343 | if( USE_DQT_BARRIER ) |
---|
344 | { |
---|
345 | barrier_attr.x_size = x_size; |
---|
346 | barrier_attr.y_size = y_size; |
---|
347 | barrier_attr.nthreads = ncores; |
---|
348 | error = pthread_barrier_init( &barrier, &barrier_attr , total_threads ); |
---|
349 | } |
---|
350 | else // use SIMPLE_BARRIER |
---|
351 | { |
---|
352 | error = pthread_barrier_init( &barrier, NULL , total_threads ); |
---|
353 | } |
---|
354 | |
---|
355 | if( error ) |
---|
356 | { |
---|
357 | printf("\n[sort error] cannot initialise barrier\n" ); |
---|
358 | exit( 0 ); |
---|
359 | } |
---|
360 | |
---|
361 | #if DEBUG_MAIN |
---|
362 | if( USE_DQT_BARRIER ) printf("\n[sort] main completes DQT barrier init\n"); |
---|
363 | else printf("\n[sort] main completes simple barrier init\n"); |
---|
364 | #endif |
---|
365 | |
---|
366 | // Array to sort initialization |
---|
367 | for ( n = 0 ; n < ARRAY_LENGTH ; n++ ) |
---|
368 | { |
---|
369 | array0[n] = ARRAY_LENGTH - n - 1; |
---|
370 | } |
---|
371 | |
---|
372 | #if DEBUG_MAIN |
---|
373 | printf("\n[sort] main completes array init\n"); |
---|
374 | #endif |
---|
375 | |
---|
376 | // launch other threads to execute sort() function |
---|
377 | // on cores other than the core running the main thread |
---|
378 | for ( x = 0 ; x < x_size ; x++ ) |
---|
379 | { |
---|
380 | for ( y = 0 ; y < y_size ; y++ ) |
---|
381 | { |
---|
382 | for ( lid = 0 ; lid < ncores ; lid++ ) |
---|
383 | { |
---|
384 | // compute thread user index (continuous index) |
---|
385 | thread_uid = (((x * y_size) + y) * ncores) + lid; |
---|
386 | |
---|
387 | // set arguments for all threads |
---|
388 | arg[thread_uid].threads = total_threads; |
---|
389 | arg[thread_uid].thread_uid = thread_uid; |
---|
390 | arg[thread_uid].main_uid = main_uid; |
---|
391 | |
---|
392 | // set thread attributes for all threads |
---|
393 | attr[thread_uid].attributes = PT_ATTR_CLUSTER_DEFINED | PT_ATTR_CORE_DEFINED; |
---|
394 | attr[thread_uid].cxy = HAL_CXY_FROM_XY( x , y ); |
---|
395 | attr[thread_uid].lid = lid; |
---|
396 | |
---|
397 | if( thread_uid != main_uid ) |
---|
398 | { |
---|
399 | if ( pthread_create( &trdid[thread_uid], // buffer for kernel identifier |
---|
400 | &attr[thread_uid], // thread attributes |
---|
401 | &sort, // entry function |
---|
402 | &arg[thread_uid] ) ) // sort arguments |
---|
403 | { |
---|
404 | printf("\n[sort error] main cannot create thread %x \n", thread_uid ); |
---|
405 | exit( 0 ); |
---|
406 | } |
---|
407 | |
---|
408 | #if (DEBUG_MAIN & 1) |
---|
409 | printf("\n[sort] main created thread %x \n", thread_uid ); |
---|
410 | #endif |
---|
411 | } |
---|
412 | } |
---|
413 | } |
---|
414 | } |
---|
415 | |
---|
416 | /////////////////////////// |
---|
417 | get_cycle( &seq_end_cycle ); |
---|
418 | |
---|
419 | #if DEBUG_MAIN |
---|
420 | printf("\n[sort] main completes sequencial init at cycle %d\n", |
---|
421 | (unsigned int)seq_end_cycle ); |
---|
422 | #endif |
---|
423 | |
---|
424 | // the main thread run also the sort() function |
---|
425 | sort( &arg[main_uid] ); |
---|
426 | |
---|
427 | // wait other threads completion |
---|
428 | for ( x = 0 ; x < x_size ; x++ ) |
---|
429 | { |
---|
430 | for ( y = 0 ; y < y_size ; y++ ) |
---|
431 | { |
---|
432 | for ( lid = 0 ; lid < ncores ; lid++ ) |
---|
433 | { |
---|
434 | // compute thread continuous index |
---|
435 | thread_uid = (((x * y_size) + y) * ncores) + lid; |
---|
436 | |
---|
437 | if( thread_uid != main_uid ) |
---|
438 | { |
---|
439 | if( pthread_join( trdid[thread_uid] , NULL ) ) |
---|
440 | { |
---|
441 | printf("\n[fft error] in main thread %d joining thread %d\n", |
---|
442 | main_uid , thread_uid ); |
---|
443 | exit( 0 ); |
---|
444 | } |
---|
445 | |
---|
446 | #if (DEBUG_MAIN & 1) |
---|
447 | printf("\n[fft] main thread %d joined thread %d\n", main_uid, thread_uid ); |
---|
448 | #endif |
---|
449 | |
---|
450 | } |
---|
451 | } |
---|
452 | } |
---|
453 | } |
---|
454 | |
---|
455 | //////////////////////////// |
---|
456 | get_cycle( ¶_end_cycle ); |
---|
457 | |
---|
458 | printf("\n[sort] main completes parallel sort at cycle %d\n", |
---|
459 | (unsigned int)para_end_cycle ); |
---|
460 | |
---|
461 | // destroy barrier |
---|
462 | pthread_barrier_destroy( &barrier ); |
---|
463 | |
---|
464 | #if CHECK_RESULT |
---|
465 | int success = 1; |
---|
466 | int * res_array = ( (total_threads == 2) || |
---|
467 | (total_threads == 8) || |
---|
468 | (total_threads == 32) || |
---|
469 | (total_threads == 128) || |
---|
470 | (total_threads == 512) ) ? array1 : array0; |
---|
471 | |
---|
472 | for( n=0 ; n<(ARRAY_LENGTH-2) ; n++ ) |
---|
473 | { |
---|
474 | if ( res_array[n] > res_array[n+1] ) |
---|
475 | { |
---|
476 | printf("\n[sort] array[%d] = %d > array[%d] = %d\n", |
---|
477 | n , res_array[n] , n+1 , res_array[n+1] ); |
---|
478 | success = 0; |
---|
479 | break; |
---|
480 | } |
---|
481 | } |
---|
482 | |
---|
483 | if ( success ) printf("\n[sort] success\n"); |
---|
484 | else printf("\n[sort] failure\n"); |
---|
485 | #endif |
---|
486 | |
---|
487 | #if INSTRUMENTATION |
---|
488 | char name[64]; |
---|
489 | char path[128]; |
---|
490 | unsigned long long instru_cycle; |
---|
491 | |
---|
492 | // build file name |
---|
493 | if( USE_DQT_BARRIER ) |
---|
494 | snprintf( name , 64 , "sort_dqt_%d_%d_%d", ARRAY_LENGTH, x_size * y_size, ncores ); |
---|
495 | else |
---|
496 | snprintf( name , 64 , "sort_smp_%d_%d_%d", ARRAY_LENGTH, x_size * y_size, ncores ); |
---|
497 | |
---|
498 | // build file pathname |
---|
499 | snprintf( path , 128 , "home/%s" , name ); |
---|
500 | |
---|
501 | // compute results |
---|
502 | unsigned int sequencial = (unsigned int)(seq_end_cycle - start_cycle); |
---|
503 | unsigned int parallel = (unsigned int)(para_end_cycle - seq_end_cycle); |
---|
504 | |
---|
505 | // display results on process terminal |
---|
506 | printf("\n----- %s -----\n" |
---|
507 | " - sequencial : %d cycles\n" |
---|
508 | " - parallel : %d cycles\n", |
---|
509 | name, sequencial, parallel ); |
---|
510 | |
---|
511 | // open file |
---|
512 | get_cycle( &instru_cycle ); |
---|
513 | FILE * stream = fopen( path , NULL ); |
---|
514 | |
---|
515 | if( stream == NULL ) |
---|
516 | { |
---|
517 | printf("\n[sort error] cannot open instrumentation file <%s>\n", path ); |
---|
518 | exit(0); |
---|
519 | } |
---|
520 | |
---|
521 | printf("\n[sort] file <%s> open at cycle %d\n", path, (unsigned int)instru_cycle ); |
---|
522 | |
---|
523 | #if IDBG |
---|
524 | idbg(); |
---|
525 | #endif |
---|
526 | |
---|
527 | // register results to file |
---|
528 | get_cycle( &instru_cycle ); |
---|
529 | int ret = fprintf( stream , "\n----- %s -----\n" |
---|
530 | " - sequencial : %d cycles\n" |
---|
531 | " - parallel : %d cycles\n", name, sequencial, parallel ); |
---|
532 | if( ret < 0 ) |
---|
533 | { |
---|
534 | printf("\n[sort error] cannot write to instrumentation file <%s>\n", path ); |
---|
535 | exit(0); |
---|
536 | } |
---|
537 | |
---|
538 | printf("\n[sort] file <%s> written at cycle %d\n", path, (unsigned int)instru_cycle ); |
---|
539 | |
---|
540 | #if IDBG |
---|
541 | idbg(); |
---|
542 | #endif |
---|
543 | |
---|
544 | // close instrumentation file |
---|
545 | get_cycle( &instru_cycle ); |
---|
546 | ret = fclose( stream ); |
---|
547 | |
---|
548 | if( ret ) |
---|
549 | { |
---|
550 | printf("\n[sort error] cannot close instrumentation file <%s>\n", path ); |
---|
551 | exit(0); |
---|
552 | } |
---|
553 | |
---|
554 | printf("\n[sort] file <%s> closed at cycle %d\n", path, (unsigned int)instru_cycle ); |
---|
555 | |
---|
556 | #endif |
---|
557 | |
---|
558 | exit( 0 ); |
---|
559 | |
---|
560 | } // end main() |
---|
561 | |
---|
562 | /* |
---|
563 | vim: tabstop=4 : shiftwidth=4 : expandtab |
---|
564 | */ |
---|