15 #include "kmp_wrapper_malloc.h"
22 typedef int (*bget_compact_t)(size_t, int);
23 typedef void *(*bget_acquire_t)(size_t);
24 typedef void (*bget_release_t)(
void *);
29 #if KMP_ARCH_X86 || KMP_ARCH_ARM
30 typedef kmp_int32 bufsize;
32 typedef kmp_int64 bufsize;
35 typedef ssize_t bufsize;
40 typedef enum bget_mode {
46 static void bpool(kmp_info_t *th,
void *buffer, bufsize len);
47 static void *bget(kmp_info_t *th, bufsize size);
48 static void *bgetz(kmp_info_t *th, bufsize size);
49 static void *bgetr(kmp_info_t *th,
void *buffer, bufsize newsize);
50 static void brel(kmp_info_t *th,
void *buf);
51 static void bectl(kmp_info_t *th, bget_compact_t compact,
52 bget_acquire_t acquire, bget_release_t release,
62 #if KMP_ARCH_X86 || !KMP_HAVE_QUAD
65 #define AlignType double
70 #define AlignType _Quad
106 static bufsize bget_bin_size[] = {
116 1 << 16, 1 << 17, 1 << 18, 1 << 19, 1 << 20,
124 #define MAX_BGET_BINS (int)(sizeof(bget_bin_size) / sizeof(bufsize))
131 typedef struct qlinks {
132 struct bfhead *flink;
133 struct bfhead *blink;
137 typedef struct bhead2 {
145 typedef union bhead {
148 char b_pad[sizeof(bhead2_t) + (SizeQuant - (sizeof(bhead2_t) % SizeQuant))];
151 #define BH(p) ((bhead_t *)(p))
154 typedef struct bdhead {
158 #define BDH(p) ((bdhead_t *)(p))
161 typedef struct bfhead {
165 #define BFH(p) ((bfhead_t *)(p))
167 typedef struct thr_data {
168 bfhead_t freelist[MAX_BGET_BINS];
173 long numpget, numprel;
174 long numdget, numdrel;
178 bget_compact_t compfcn;
179 bget_acquire_t acqfcn;
180 bget_release_t relfcn;
193 #define QLSize (sizeof(qlinks_t))
194 #define SizeQ ((SizeQuant > QLSize) ? SizeQuant : QLSize)
197 ~(((bufsize)(1) << (sizeof(bufsize) * CHAR_BIT - 1)) | (SizeQuant - 1)))
205 ((bufsize)(-(((((bufsize)1) << ((int)sizeof(bufsize) * 8 - 2)) - 1) * 2) - 2))
208 static int bget_get_bin(bufsize size) {
210 int lo = 0, hi = MAX_BGET_BINS - 1;
212 KMP_DEBUG_ASSERT(size > 0);
214 while ((hi - lo) > 1) {
215 int mid = (lo + hi) >> 1;
216 if (size < bget_bin_size[mid])
222 KMP_DEBUG_ASSERT((lo >= 0) && (lo < MAX_BGET_BINS));
227 static void set_thr_data(kmp_info_t *th) {
231 data = (thr_data_t *)((!th->th.th_local.bget_data)
232 ? __kmp_allocate(
sizeof(*data))
233 : th->th.th_local.bget_data);
235 memset(data,
'\0',
sizeof(*data));
237 for (i = 0; i < MAX_BGET_BINS; ++i) {
238 data->freelist[i].ql.flink = &data->freelist[i];
239 data->freelist[i].ql.blink = &data->freelist[i];
242 th->th.th_local.bget_data = data;
243 th->th.th_local.bget_list = 0;
244 #if !USE_CMP_XCHG_FOR_BGET
245 #ifdef USE_QUEUING_LOCK_FOR_BGET
246 __kmp_init_lock(&th->th.th_local.bget_lock);
248 __kmp_init_bootstrap_lock(&th->th.th_local.bget_lock);
253 static thr_data_t *get_thr_data(kmp_info_t *th) {
256 data = (thr_data_t *)th->th.th_local.bget_data;
258 KMP_DEBUG_ASSERT(data != 0);
264 static void __kmp_bget_dequeue(kmp_info_t *th) {
265 void *p = TCR_SYNC_PTR(th->th.th_local.bget_list);
268 #if USE_CMP_XCHG_FOR_BGET
270 volatile void *old_value = TCR_SYNC_PTR(th->th.th_local.bget_list);
271 while (!KMP_COMPARE_AND_STORE_PTR(&th->th.th_local.bget_list,
272 CCAST(
void *, old_value),
nullptr)) {
274 old_value = TCR_SYNC_PTR(th->th.th_local.bget_list);
276 p = CCAST(
void *, old_value);
279 #ifdef USE_QUEUING_LOCK_FOR_BGET
280 __kmp_acquire_lock(&th->th.th_local.bget_lock, __kmp_gtid_from_thread(th));
282 __kmp_acquire_bootstrap_lock(&th->th.th_local.bget_lock);
285 p = (
void *)th->th.th_local.bget_list;
286 th->th.th_local.bget_list = 0;
288 #ifdef USE_QUEUING_LOCK_FOR_BGET
289 __kmp_release_lock(&th->th.th_local.bget_lock, __kmp_gtid_from_thread(th));
291 __kmp_release_bootstrap_lock(&th->th.th_local.bget_lock);
298 bfhead_t *b = BFH(((
char *)p) -
sizeof(bhead_t));
300 KMP_DEBUG_ASSERT(b->bh.bb.bsize != 0);
301 KMP_DEBUG_ASSERT(((kmp_uintptr_t)TCR_PTR(b->bh.bb.bthr) & ~1) ==
303 KMP_DEBUG_ASSERT(b->ql.blink == 0);
305 p = (
void *)b->ql.flink;
313 static void __kmp_bget_enqueue(kmp_info_t *th,
void *buf
314 #ifdef USE_QUEUING_LOCK_FOR_BGET
319 bfhead_t *b = BFH(((
char *)buf) -
sizeof(bhead_t));
321 KMP_DEBUG_ASSERT(b->bh.bb.bsize != 0);
322 KMP_DEBUG_ASSERT(((kmp_uintptr_t)TCR_PTR(b->bh.bb.bthr) & ~1) ==
327 KC_TRACE(10, (
"__kmp_bget_enqueue: moving buffer to T#%d list\n",
328 __kmp_gtid_from_thread(th)));
330 #if USE_CMP_XCHG_FOR_BGET
332 volatile void *old_value = TCR_PTR(th->th.th_local.bget_list);
335 b->ql.flink = BFH(CCAST(
void *, old_value));
337 while (!KMP_COMPARE_AND_STORE_PTR(&th->th.th_local.bget_list,
338 CCAST(
void *, old_value), buf)) {
340 old_value = TCR_PTR(th->th.th_local.bget_list);
343 b->ql.flink = BFH(CCAST(
void *, old_value));
347 #ifdef USE_QUEUING_LOCK_FOR_BGET
348 __kmp_acquire_lock(&th->th.th_local.bget_lock, rel_gtid);
350 __kmp_acquire_bootstrap_lock(&th->th.th_local.bget_lock);
353 b->ql.flink = BFH(th->th.th_local.bget_list);
354 th->th.th_local.bget_list = (
void *)buf;
356 #ifdef USE_QUEUING_LOCK_FOR_BGET
357 __kmp_release_lock(&th->th.th_local.bget_lock, rel_gtid);
359 __kmp_release_bootstrap_lock(&th->th.th_local.bget_lock);
365 static void __kmp_bget_insert_into_freelist(thr_data_t *thr, bfhead_t *b) {
368 KMP_DEBUG_ASSERT(((
size_t)b) % SizeQuant == 0);
369 KMP_DEBUG_ASSERT(b->bh.bb.bsize % SizeQuant == 0);
371 bin = bget_get_bin(b->bh.bb.bsize);
373 KMP_DEBUG_ASSERT(thr->freelist[bin].ql.blink->ql.flink ==
374 &thr->freelist[bin]);
375 KMP_DEBUG_ASSERT(thr->freelist[bin].ql.flink->ql.blink ==
376 &thr->freelist[bin]);
378 b->ql.flink = &thr->freelist[bin];
379 b->ql.blink = thr->freelist[bin].ql.blink;
381 thr->freelist[bin].ql.blink = b;
382 b->ql.blink->ql.flink = b;
386 static void __kmp_bget_remove_from_freelist(bfhead_t *b) {
387 KMP_DEBUG_ASSERT(b->ql.blink->ql.flink == b);
388 KMP_DEBUG_ASSERT(b->ql.flink->ql.blink == b);
390 b->ql.blink->ql.flink = b->ql.flink;
391 b->ql.flink->ql.blink = b->ql.blink;
395 static void bcheck(kmp_info_t *th, bufsize *max_free, bufsize *total_free) {
396 thr_data_t *thr = get_thr_data(th);
399 *total_free = *max_free = 0;
401 for (bin = 0; bin < MAX_BGET_BINS; ++bin) {
404 best = &thr->freelist[bin];
407 while (b != &thr->freelist[bin]) {
408 *total_free += (b->bh.bb.bsize -
sizeof(bhead_t));
409 if ((best == &thr->freelist[bin]) || (b->bh.bb.bsize < best->bh.bb.bsize))
416 if (*max_free < best->bh.bb.bsize)
417 *max_free = best->bh.bb.bsize;
420 if (*max_free > (bufsize)
sizeof(bhead_t))
421 *max_free -=
sizeof(bhead_t);
425 static void *bget(kmp_info_t *th, bufsize requested_size) {
426 thr_data_t *thr = get_thr_data(th);
427 bufsize size = requested_size;
435 if (size < 0 || size +
sizeof(bhead_t) > MaxSize) {
439 __kmp_bget_dequeue(th);
441 if (size < (bufsize)SizeQ) {
444 #if defined(SizeQuant) && (SizeQuant > 1)
445 size = (size + (SizeQuant - 1)) & (~(SizeQuant - 1));
448 size +=
sizeof(bhead_t);
449 KMP_DEBUG_ASSERT(size >= 0);
450 KMP_DEBUG_ASSERT(size % SizeQuant == 0);
452 use_blink = (thr->mode == bget_mode_lifo);
461 for (bin = bget_get_bin(size); bin < MAX_BGET_BINS; ++bin) {
463 b = (use_blink ? thr->freelist[bin].ql.blink
464 : thr->freelist[bin].ql.flink);
466 if (thr->mode == bget_mode_best) {
467 best = &thr->freelist[bin];
471 while (b != &thr->freelist[bin]) {
472 if (b->bh.bb.bsize >= (bufsize)size) {
473 if ((best == &thr->freelist[bin]) ||
474 (b->bh.bb.bsize < best->bh.bb.bsize)) {
480 b = (use_blink ? b->ql.blink : b->ql.flink);
485 while (b != &thr->freelist[bin]) {
486 if ((bufsize)b->bh.bb.bsize >= (bufsize)size) {
495 if ((b->bh.bb.bsize - (bufsize)size) >
496 (bufsize)(SizeQ + (
sizeof(bhead_t)))) {
499 ba = BH(((
char *)b) + (b->bh.bb.bsize - (bufsize)size));
500 bn = BH(((
char *)ba) + size);
502 KMP_DEBUG_ASSERT(bn->bb.prevfree == b->bh.bb.bsize);
505 b->bh.bb.bsize -= (bufsize)size;
508 ba->bb.prevfree = b->bh.bb.bsize;
511 ba->bb.bsize = -size;
520 __kmp_bget_remove_from_freelist(b);
521 __kmp_bget_insert_into_freelist(thr, b);
523 thr->totalloc += (size_t)size;
526 buf = (
void *)((((
char *)ba) +
sizeof(bhead_t)));
527 KMP_DEBUG_ASSERT(((
size_t)buf) % SizeQuant == 0);
532 ba = BH(((
char *)b) + b->bh.bb.bsize);
534 KMP_DEBUG_ASSERT(ba->bb.prevfree == b->bh.bb.bsize);
539 __kmp_bget_remove_from_freelist(b);
541 thr->totalloc += (size_t)b->bh.bb.bsize;
545 b->bh.bb.bsize = -(b->bh.bb.bsize);
548 TCW_PTR(ba->bb.bthr, th);
554 buf = (
void *)&(b->ql);
555 KMP_DEBUG_ASSERT(((
size_t)buf) % SizeQuant == 0);
561 b = (use_blink ? b->ql.blink : b->ql.flink);
569 if ((thr->compfcn == 0) || (!(*thr->compfcn)(size, ++compactseq))) {
577 if (thr->acqfcn != 0) {
578 if (size > (bufsize)(thr->exp_incr -
sizeof(bhead_t))) {
583 size +=
sizeof(bdhead_t) -
sizeof(bhead_t);
585 KE_TRACE(10, (
"%%%%%% MALLOC( %d )\n", (
int)size));
588 bdh = BDH((*thr->acqfcn)((bufsize)size));
592 bdh->bh.bb.bsize = 0;
595 TCW_PTR(bdh->bh.bb.bthr, th);
597 bdh->bh.bb.prevfree = 0;
600 thr->totalloc += (size_t)size;
604 buf = (
void *)(bdh + 1);
605 KMP_DEBUG_ASSERT(((
size_t)buf) % SizeQuant == 0);
614 KE_TRACE(10, (
"%%%%%% MALLOCB( %d )\n", (
int)thr->exp_incr));
617 newpool = (*thr->acqfcn)((bufsize)thr->exp_incr);
618 KMP_DEBUG_ASSERT(((
size_t)newpool) % SizeQuant == 0);
619 if (newpool != NULL) {
620 bpool(th, newpool, thr->exp_incr);
637 static void *bgetz(kmp_info_t *th, bufsize size) {
638 char *buf = (
char *)bget(th, size);
644 b = BH(buf -
sizeof(bhead_t));
645 rsize = -(b->bb.bsize);
649 bd = BDH(buf -
sizeof(bdhead_t));
650 rsize = bd->tsize - (bufsize)
sizeof(bdhead_t);
652 rsize -=
sizeof(bhead_t);
655 KMP_DEBUG_ASSERT(rsize >= size);
657 (void)memset(buf, 0, (bufsize)rsize);
659 return ((
void *)buf);
667 static void *bgetr(kmp_info_t *th,
void *buf, bufsize size) {
672 nbuf = bget(th, size);
679 b = BH(((
char *)buf) -
sizeof(bhead_t));
680 osize = -b->bb.bsize;
685 bd = BDH(((
char *)buf) -
sizeof(bdhead_t));
686 osize = bd->tsize - (bufsize)
sizeof(bdhead_t);
688 osize -=
sizeof(bhead_t);
691 KMP_DEBUG_ASSERT(osize > 0);
693 (void)KMP_MEMCPY((
char *)nbuf, (
char *)buf,
694 (
size_t)((size < osize) ? size : osize));
701 static void brel(kmp_info_t *th,
void *buf) {
702 thr_data_t *thr = get_thr_data(th);
706 KMP_DEBUG_ASSERT(buf != NULL);
707 KMP_DEBUG_ASSERT(((
size_t)buf) % SizeQuant == 0);
709 b = BFH(((
char *)buf) -
sizeof(bhead_t));
711 if (b->bh.bb.bsize == 0) {
714 bdh = BDH(((
char *)buf) -
sizeof(bdhead_t));
715 KMP_DEBUG_ASSERT(b->bh.bb.prevfree == 0);
717 thr->totalloc -= (size_t)bdh->tsize;
722 (
void)memset((
char *)buf, 0x55, (
size_t)(bdh->tsize -
sizeof(bdhead_t)));
725 KE_TRACE(10, (
"%%%%%% FREE( %p )\n", (
void *)bdh));
727 KMP_DEBUG_ASSERT(thr->relfcn != 0);
728 (*thr->relfcn)((
void *)bdh);
732 bth = (kmp_info_t *)((kmp_uintptr_t)TCR_PTR(b->bh.bb.bthr) &
736 __kmp_bget_enqueue(bth, buf
737 #ifdef USE_QUEUING_LOCK_FOR_BGET
739 __kmp_gtid_from_thread(th)
746 if (b->bh.bb.bsize >= 0) {
749 KMP_DEBUG_ASSERT(b->bh.bb.bsize < 0);
753 KMP_DEBUG_ASSERT(BH((
char *)b - b->bh.bb.bsize)->bb.prevfree == 0);
757 thr->totalloc += (size_t)b->bh.bb.bsize;
762 if (b->bh.bb.prevfree != 0) {
767 bufsize size = b->bh.bb.bsize;
770 KMP_DEBUG_ASSERT(BH((
char *)b - b->bh.bb.prevfree)->bb.bsize ==
772 b = BFH(((
char *)b) - b->bh.bb.prevfree);
773 b->bh.bb.bsize -= size;
776 __kmp_bget_remove_from_freelist(b);
781 b->bh.bb.bsize = -b->bh.bb.bsize;
785 __kmp_bget_insert_into_freelist(thr, b);
791 bn = BFH(((
char *)b) + b->bh.bb.bsize);
792 if (bn->bh.bb.bsize > 0) {
796 KMP_DEBUG_ASSERT(BH((
char *)bn + bn->bh.bb.bsize)->bb.prevfree ==
799 __kmp_bget_remove_from_freelist(bn);
801 b->bh.bb.bsize += bn->bh.bb.bsize;
805 __kmp_bget_remove_from_freelist(b);
806 __kmp_bget_insert_into_freelist(thr, b);
814 bn = BFH(((
char *)b) + b->bh.bb.bsize);
817 (void)memset(((
char *)b) +
sizeof(bfhead_t), 0x55,
818 (
size_t)(b->bh.bb.bsize -
sizeof(bfhead_t)));
820 KMP_DEBUG_ASSERT(bn->bh.bb.bsize < 0);
825 bn->bh.bb.prevfree = b->bh.bb.bsize;
831 if (thr->relfcn != 0 &&
832 b->bh.bb.bsize == (bufsize)(thr->pool_len -
sizeof(bhead_t))) {
838 KMP_DEBUG_ASSERT(b->bh.bb.prevfree == 0);
839 KMP_DEBUG_ASSERT(BH((
char *)b + b->bh.bb.bsize)->bb.bsize == ESent);
840 KMP_DEBUG_ASSERT(BH((
char *)b + b->bh.bb.bsize)->bb.prevfree ==
844 __kmp_bget_remove_from_freelist(b);
846 KE_TRACE(10, (
"%%%%%% FREE( %p )\n", (
void *)b));
852 KMP_DEBUG_ASSERT(thr->numpblk == thr->numpget - thr->numprel);
855 if (thr->last_pool == b)
865 static void bectl(kmp_info_t *th, bget_compact_t compact,
866 bget_acquire_t acquire, bget_release_t release,
868 thr_data_t *thr = get_thr_data(th);
870 thr->compfcn = compact;
871 thr->acqfcn = acquire;
872 thr->relfcn = release;
873 thr->exp_incr = pool_incr;
877 static void bpool(kmp_info_t *th,
void *buf, bufsize len) {
879 thr_data_t *thr = get_thr_data(th);
880 bfhead_t *b = BFH(buf);
883 __kmp_bget_dequeue(th);
886 len &= ~(SizeQuant - 1);
888 if (thr->pool_len == 0) {
890 }
else if (len != thr->pool_len) {
896 KMP_DEBUG_ASSERT(thr->numpblk == thr->numpget - thr->numprel);
902 KMP_DEBUG_ASSERT(len -
sizeof(bhead_t) <= -((bufsize)ESent + 1));
907 b->bh.bb.prevfree = 0;
916 len -=
sizeof(bhead_t);
917 b->bh.bb.bsize = (bufsize)len;
919 TCW_PTR(b->bh.bb.bthr,
920 (kmp_info_t *)((kmp_uintptr_t)th |
924 __kmp_bget_insert_into_freelist(thr, b);
927 (void)memset(((
char *)b) +
sizeof(bfhead_t), 0x55,
928 (
size_t)(len -
sizeof(bfhead_t)));
930 bn = BH(((
char *)b) + len);
931 bn->bb.prevfree = (bufsize)len;
933 KMP_DEBUG_ASSERT((~0) == -1 && (bn != 0));
935 bn->bb.bsize = ESent;
939 static void bfreed(kmp_info_t *th) {
940 int bin = 0, count = 0;
941 int gtid = __kmp_gtid_from_thread(th);
942 thr_data_t *thr = get_thr_data(th);
945 __kmp_printf_no_lock(
"__kmp_printpool: T#%d total=%" KMP_UINT64_SPEC
946 " get=%" KMP_INT64_SPEC
" rel=%" KMP_INT64_SPEC
947 " pblk=%" KMP_INT64_SPEC
" pget=%" KMP_INT64_SPEC
948 " prel=%" KMP_INT64_SPEC
" dget=%" KMP_INT64_SPEC
949 " drel=%" KMP_INT64_SPEC
"\n",
950 gtid, (kmp_uint64)thr->totalloc, (kmp_int64)thr->numget,
951 (kmp_int64)thr->numrel, (kmp_int64)thr->numpblk,
952 (kmp_int64)thr->numpget, (kmp_int64)thr->numprel,
953 (kmp_int64)thr->numdget, (kmp_int64)thr->numdrel);
956 for (bin = 0; bin < MAX_BGET_BINS; ++bin) {
959 for (b = thr->freelist[bin].ql.flink; b != &thr->freelist[bin];
961 bufsize bs = b->bh.bb.bsize;
963 KMP_DEBUG_ASSERT(b->ql.blink->ql.flink == b);
964 KMP_DEBUG_ASSERT(b->ql.flink->ql.blink == b);
965 KMP_DEBUG_ASSERT(bs > 0);
969 __kmp_printf_no_lock(
970 "__kmp_printpool: T#%d Free block: 0x%p size %6ld bytes.\n", gtid, b,
974 char *lerr = ((
char *)b) +
sizeof(bfhead_t);
975 if ((bs >
sizeof(bfhead_t)) &&
977 (memcmp(lerr, lerr + 1, (
size_t)(bs - (
sizeof(bfhead_t) + 1))) !=
979 __kmp_printf_no_lock(
"__kmp_printpool: T#%d (Contents of above "
980 "free block have been overstored.)\n",
989 __kmp_printf_no_lock(
"__kmp_printpool: T#%d No free blocks\n", gtid);
992 void __kmp_initialize_bget(kmp_info_t *th) {
993 KMP_DEBUG_ASSERT(SizeQuant >=
sizeof(
void *) && (th != 0));
997 bectl(th, (bget_compact_t)0, (bget_acquire_t)malloc, (bget_release_t)free,
998 (bufsize)__kmp_malloc_pool_incr);
1001 void __kmp_finalize_bget(kmp_info_t *th) {
1005 KMP_DEBUG_ASSERT(th != 0);
1008 thr = (thr_data_t *)th->th.th_local.bget_data;
1009 KMP_DEBUG_ASSERT(thr != NULL);
1017 if (thr->relfcn != 0 && b != 0 && thr->numpblk != 0 &&
1018 b->bh.bb.bsize == (bufsize)(thr->pool_len -
sizeof(bhead_t))) {
1019 KMP_DEBUG_ASSERT(b->bh.bb.prevfree == 0);
1020 KMP_DEBUG_ASSERT(BH((
char *)b + b->bh.bb.bsize)->bb.bsize == ESent);
1021 KMP_DEBUG_ASSERT(BH((
char *)b + b->bh.bb.bsize)->bb.prevfree ==
1025 __kmp_bget_remove_from_freelist(b);
1027 KE_TRACE(10, (
"%%%%%% FREE( %p )\n", (
void *)b));
1032 KMP_DEBUG_ASSERT(thr->numpblk == thr->numpget - thr->numprel);
1037 if (th->th.th_local.bget_data != NULL) {
1038 __kmp_free(th->th.th_local.bget_data);
1039 th->th.th_local.bget_data = NULL;
1043 void kmpc_set_poolsize(
size_t size) {
1044 bectl(__kmp_get_thread(), (bget_compact_t)0, (bget_acquire_t)malloc,
1045 (bget_release_t)free, (bufsize)size);
1048 size_t kmpc_get_poolsize(
void) {
1051 p = get_thr_data(__kmp_get_thread());
1056 void kmpc_set_poolmode(
int mode) {
1059 if (mode == bget_mode_fifo || mode == bget_mode_lifo ||
1060 mode == bget_mode_best) {
1061 p = get_thr_data(__kmp_get_thread());
1062 p->mode = (bget_mode_t)mode;
1066 int kmpc_get_poolmode(
void) {
1069 p = get_thr_data(__kmp_get_thread());
1074 void kmpc_get_poolstat(
size_t *maxmem,
size_t *allmem) {
1075 kmp_info_t *th = __kmp_get_thread();
1078 __kmp_bget_dequeue(th);
1086 void kmpc_poolprint(
void) {
1087 kmp_info_t *th = __kmp_get_thread();
1089 __kmp_bget_dequeue(th);
1094 #endif // #if KMP_USE_BGET
1096 void *kmpc_malloc(
size_t size) {
1098 ptr = bget(__kmp_entry_thread(), (bufsize)(size +
sizeof(ptr)));
1101 *(
void **)ptr = ptr;
1102 ptr = (
void **)ptr + 1;
1107 #define IS_POWER_OF_TWO(n) (((n) & ((n)-1)) == 0)
1109 void *kmpc_aligned_malloc(
size_t size,
size_t alignment) {
1111 void *ptr_allocated;
1112 KMP_DEBUG_ASSERT(alignment < 32 * 1024);
1113 if (!IS_POWER_OF_TWO(alignment)) {
1118 size = size +
sizeof(
void *) + alignment;
1119 ptr_allocated = bget(__kmp_entry_thread(), (bufsize)size);
1120 if (ptr_allocated != NULL) {
1122 ptr = (
void *)(((kmp_uintptr_t)ptr_allocated +
sizeof(
void *) + alignment) &
1124 *((
void **)ptr - 1) = ptr_allocated;
1131 void *kmpc_calloc(
size_t nelem,
size_t elsize) {
1133 ptr = bgetz(__kmp_entry_thread(), (bufsize)(nelem * elsize +
sizeof(ptr)));
1136 *(
void **)ptr = ptr;
1137 ptr = (
void **)ptr + 1;
1142 void *kmpc_realloc(
void *ptr,
size_t size) {
1143 void *result = NULL;
1146 result = bget(__kmp_entry_thread(), (bufsize)(size +
sizeof(ptr)));
1148 if (result != NULL) {
1149 *(
void **)result = result;
1150 result = (
void **)result + 1;
1152 }
else if (size == 0) {
1158 KMP_ASSERT(*((
void **)ptr - 1));
1159 brel(__kmp_get_thread(), *((
void **)ptr - 1));
1161 result = bgetr(__kmp_entry_thread(), *((
void **)ptr - 1),
1162 (bufsize)(size +
sizeof(ptr)));
1163 if (result != NULL) {
1164 *(
void **)result = result;
1165 result = (
void **)result + 1;
1172 void kmpc_free(
void *ptr) {
1173 if (!__kmp_init_serial) {
1177 kmp_info_t *th = __kmp_get_thread();
1178 __kmp_bget_dequeue(th);
1180 KMP_ASSERT(*((
void **)ptr - 1));
1181 brel(th, *((
void **)ptr - 1));
1185 void *___kmp_thread_malloc(kmp_info_t *th,
size_t size KMP_SRC_LOC_DECL) {
1187 KE_TRACE(30, (
"-> __kmp_thread_malloc( %p, %d ) called from %s:%d\n", th,
1188 (
int)size KMP_SRC_LOC_PARM));
1189 ptr = bget(th, (bufsize)size);
1190 KE_TRACE(30, (
"<- __kmp_thread_malloc() returns %p\n", ptr));
1194 void *___kmp_thread_calloc(kmp_info_t *th,
size_t nelem,
1195 size_t elsize KMP_SRC_LOC_DECL) {
1197 KE_TRACE(30, (
"-> __kmp_thread_calloc( %p, %d, %d ) called from %s:%d\n", th,
1198 (
int)nelem, (
int)elsize KMP_SRC_LOC_PARM));
1199 ptr = bgetz(th, (bufsize)(nelem * elsize));
1200 KE_TRACE(30, (
"<- __kmp_thread_calloc() returns %p\n", ptr));
1204 void *___kmp_thread_realloc(kmp_info_t *th,
void *ptr,
1205 size_t size KMP_SRC_LOC_DECL) {
1206 KE_TRACE(30, (
"-> __kmp_thread_realloc( %p, %p, %d ) called from %s:%d\n", th,
1207 ptr, (
int)size KMP_SRC_LOC_PARM));
1208 ptr = bgetr(th, ptr, (bufsize)size);
1209 KE_TRACE(30, (
"<- __kmp_thread_realloc() returns %p\n", ptr));
1213 void ___kmp_thread_free(kmp_info_t *th,
void *ptr KMP_SRC_LOC_DECL) {
1214 KE_TRACE(30, (
"-> __kmp_thread_free( %p, %p ) called from %s:%d\n", th,
1215 ptr KMP_SRC_LOC_PARM));
1217 __kmp_bget_dequeue(th);
1220 KE_TRACE(30, (
"<- __kmp_thread_free()\n"));
1225 static int (*p_hbw_check)(void);
1226 static void *(*p_hbw_malloc)(size_t);
1227 static void (*p_hbw_free)(
void *);
1228 static int (*p_hbw_set_policy)(int);
1229 static const char *kmp_mk_lib_name;
1230 static void *h_memkind;
1232 void __kmp_init_memkind() {
1233 #if KMP_OS_UNIX && KMP_DYNAMIC_LIB
1234 kmp_mk_lib_name =
"libmemkind.so";
1235 h_memkind = dlopen(kmp_mk_lib_name, RTLD_LAZY);
1237 p_hbw_check = (int (*)())dlsym(h_memkind,
"hbw_check_available");
1238 p_hbw_malloc = (
void *(*)(size_t))dlsym(h_memkind,
"hbw_malloc");
1239 p_hbw_free = (void (*)(
void *))dlsym(h_memkind,
"hbw_free");
1240 p_hbw_set_policy = (int (*)(int))dlsym(h_memkind,
"hbw_set_policy");
1241 if (p_hbw_check && p_hbw_malloc && p_hbw_free && p_hbw_set_policy) {
1242 __kmp_memkind_available = 1;
1243 if (p_hbw_check() == 0) {
1244 p_hbw_set_policy(1);
1245 __kmp_hbw_mem_available = 1;
1253 p_hbw_malloc = NULL;
1255 p_hbw_set_policy = NULL;
1257 kmp_mk_lib_name =
"";
1260 p_hbw_malloc = NULL;
1262 p_hbw_set_policy = NULL;
1266 void __kmp_fini_memkind() {
1267 #if KMP_OS_UNIX && KMP_DYNAMIC_LIB
1273 p_hbw_malloc = NULL;
1275 p_hbw_set_policy = NULL;
1279 void __kmpc_set_default_allocator(
int gtid,
const omp_allocator_t *allocator) {
1280 if (allocator == OMP_NULL_ALLOCATOR)
1281 allocator = omp_default_mem_alloc;
1283 allocator == omp_default_mem_alloc ||
1284 allocator == omp_large_cap_mem_alloc ||
1285 allocator == omp_const_mem_alloc || allocator == omp_high_bw_mem_alloc ||
1286 allocator == omp_low_lat_mem_alloc || allocator == omp_cgroup_mem_alloc ||
1287 allocator == omp_pteam_mem_alloc || allocator == omp_thread_mem_alloc);
1288 __kmp_threads[gtid]->th.th_def_allocator = allocator;
1290 const omp_allocator_t *__kmpc_get_default_allocator(
int gtid) {
1291 return __kmp_threads[gtid]->th.th_def_allocator;
1294 typedef struct kmp_mem_desc {
1298 const omp_allocator_t *allocator;
1300 static int alignment =
sizeof(
void *);
1302 void *__kmpc_alloc(
int gtid,
size_t size,
const omp_allocator_t *allocator) {
1303 KMP_DEBUG_ASSERT(__kmp_init_serial);
1304 if (allocator == OMP_NULL_ALLOCATOR)
1305 allocator = __kmp_threads[gtid]->th.th_def_allocator;
1307 int sz_desc =
sizeof(kmp_mem_desc_t);
1309 kmp_mem_desc_t desc;
1311 kmp_uintptr_t addr_align;
1312 kmp_uintptr_t addr_descr;
1314 KE_TRACE(25, (
"__kmpc_alloc: T#%d (%d, %p)\n", gtid, (
int)size, allocator));
1316 desc.size_a = size + sz_desc + alignment;
1317 if (allocator == omp_default_mem_alloc)
1318 ptr = __kmp_allocate(desc.size_a);
1319 if (allocator == omp_high_bw_mem_alloc && __kmp_hbw_mem_available) {
1320 KMP_DEBUG_ASSERT(p_hbw_malloc != NULL);
1321 ptr = p_hbw_malloc(desc.size_a);
1324 KE_TRACE(10, (
"__kmpc_alloc: T#%d %p=alloc(%d) hbw %d\n", gtid, ptr,
1325 desc.size_a, __kmp_hbw_mem_available));
1329 addr = (kmp_uintptr_t)ptr;
1330 addr_align = (addr + sz_desc + alignment - 1) & ~(alignment - 1);
1331 addr_descr = addr_align - sz_desc;
1333 desc.ptr_alloc = ptr;
1334 desc.ptr_align = (
void *)addr_align;
1335 desc.allocator = allocator;
1336 *((kmp_mem_desc_t *)addr_descr) = desc;
1339 KE_TRACE(25, (
"__kmpc_alloc returns %p, T#%d\n", desc.ptr_align, gtid));
1340 return desc.ptr_align;
1343 void __kmpc_free(
int gtid,
void *ptr,
const omp_allocator_t *allocator) {
1344 KE_TRACE(25, (
"__kmpc_free: T#%d free(%p,%p)\n", gtid, ptr, allocator));
1348 kmp_mem_desc_t desc;
1349 kmp_uintptr_t addr_align;
1350 kmp_uintptr_t addr_descr;
1352 addr_align = (kmp_uintptr_t)ptr;
1353 addr_descr = addr_align -
sizeof(kmp_mem_desc_t);
1354 desc = *((kmp_mem_desc_t *)addr_descr);
1356 KMP_DEBUG_ASSERT(desc.ptr_align == ptr);
1358 KMP_DEBUG_ASSERT(desc.allocator == allocator);
1360 allocator = desc.allocator;
1362 KMP_DEBUG_ASSERT(allocator);
1364 if (allocator == omp_default_mem_alloc)
1365 __kmp_free(desc.ptr_alloc);
1366 if (allocator == omp_high_bw_mem_alloc && __kmp_hbw_mem_available) {
1367 KMP_DEBUG_ASSERT(p_hbw_free != NULL);
1368 p_hbw_free(desc.ptr_alloc);
1370 KE_TRACE(10, (
"__kmpc_free: T#%d freed %p (%p)\n", gtid, desc.ptr_alloc,
1380 struct kmp_mem_descr {
1381 void *ptr_allocated;
1382 size_t size_allocated;
1384 size_t size_aligned;
1386 typedef struct kmp_mem_descr kmp_mem_descr_t;
1391 static void *___kmp_allocate_align(
size_t size,
1392 size_t alignment KMP_SRC_LOC_DECL) {
1409 kmp_mem_descr_t descr;
1410 kmp_uintptr_t addr_allocated;
1411 kmp_uintptr_t addr_aligned;
1412 kmp_uintptr_t addr_descr;
1414 KE_TRACE(25, (
"-> ___kmp_allocate_align( %d, %d ) called from %s:%d\n",
1415 (
int)size, (
int)alignment KMP_SRC_LOC_PARM));
1417 KMP_DEBUG_ASSERT(alignment < 32 * 1024);
1418 KMP_DEBUG_ASSERT(
sizeof(
void *) <=
sizeof(kmp_uintptr_t));
1421 descr.size_aligned = size;
1422 descr.size_allocated =
1423 descr.size_aligned +
sizeof(kmp_mem_descr_t) + alignment;
1426 descr.ptr_allocated = _malloc_src_loc(descr.size_allocated, _file_, _line_);
1428 descr.ptr_allocated = malloc_src_loc(descr.size_allocated KMP_SRC_LOC_PARM);
1430 KE_TRACE(10, (
" malloc( %d ) returned %p\n", (
int)descr.size_allocated,
1431 descr.ptr_allocated));
1432 if (descr.ptr_allocated == NULL) {
1433 KMP_FATAL(OutOfHeapMemory);
1436 addr_allocated = (kmp_uintptr_t)descr.ptr_allocated;
1438 (addr_allocated +
sizeof(kmp_mem_descr_t) + alignment) & ~(alignment - 1);
1439 addr_descr = addr_aligned -
sizeof(kmp_mem_descr_t);
1441 descr.ptr_aligned = (
void *)addr_aligned;
1443 KE_TRACE(26, (
" ___kmp_allocate_align: "
1444 "ptr_allocated=%p, size_allocated=%d, "
1445 "ptr_aligned=%p, size_aligned=%d\n",
1446 descr.ptr_allocated, (
int)descr.size_allocated,
1447 descr.ptr_aligned, (
int)descr.size_aligned));
1449 KMP_DEBUG_ASSERT(addr_allocated <= addr_descr);
1450 KMP_DEBUG_ASSERT(addr_descr +
sizeof(kmp_mem_descr_t) == addr_aligned);
1451 KMP_DEBUG_ASSERT(addr_aligned + descr.size_aligned <=
1452 addr_allocated + descr.size_allocated);
1453 KMP_DEBUG_ASSERT(addr_aligned % alignment == 0);
1455 memset(descr.ptr_allocated, 0xEF, descr.size_allocated);
1458 memset(descr.ptr_aligned, 0x00, descr.size_aligned);
1464 *((kmp_mem_descr_t *)addr_descr) = descr;
1468 KE_TRACE(25, (
"<- ___kmp_allocate_align() returns %p\n", descr.ptr_aligned));
1469 return descr.ptr_aligned;
1476 void *___kmp_allocate(
size_t size KMP_SRC_LOC_DECL) {
1478 KE_TRACE(25, (
"-> __kmp_allocate( %d ) called from %s:%d\n",
1479 (
int)size KMP_SRC_LOC_PARM));
1480 ptr = ___kmp_allocate_align(size, __kmp_align_alloc KMP_SRC_LOC_PARM);
1481 KE_TRACE(25, (
"<- __kmp_allocate() returns %p\n", ptr));
1489 void *___kmp_page_allocate(
size_t size KMP_SRC_LOC_DECL) {
1490 int page_size = 8 * 1024;
1493 KE_TRACE(25, (
"-> __kmp_page_allocate( %d ) called from %s:%d\n",
1494 (
int)size KMP_SRC_LOC_PARM));
1495 ptr = ___kmp_allocate_align(size, page_size KMP_SRC_LOC_PARM);
1496 KE_TRACE(25, (
"<- __kmp_page_allocate( %d ) returns %p\n", (
int)size, ptr));
1502 void ___kmp_free(
void *ptr KMP_SRC_LOC_DECL) {
1503 kmp_mem_descr_t descr;
1504 kmp_uintptr_t addr_allocated;
1505 kmp_uintptr_t addr_aligned;
1508 (
"-> __kmp_free( %p ) called from %s:%d\n", ptr KMP_SRC_LOC_PARM));
1509 KMP_ASSERT(ptr != NULL);
1511 descr = *(kmp_mem_descr_t *)((kmp_uintptr_t)ptr -
sizeof(kmp_mem_descr_t));
1513 KE_TRACE(26, (
" __kmp_free: "
1514 "ptr_allocated=%p, size_allocated=%d, "
1515 "ptr_aligned=%p, size_aligned=%d\n",
1516 descr.ptr_allocated, (
int)descr.size_allocated,
1517 descr.ptr_aligned, (
int)descr.size_aligned));
1519 addr_allocated = (kmp_uintptr_t)descr.ptr_allocated;
1520 addr_aligned = (kmp_uintptr_t)descr.ptr_aligned;
1522 KMP_DEBUG_ASSERT(addr_aligned % CACHE_LINE == 0);
1523 KMP_DEBUG_ASSERT(descr.ptr_aligned == ptr);
1524 KMP_DEBUG_ASSERT(addr_allocated +
sizeof(kmp_mem_descr_t) <= addr_aligned);
1525 KMP_DEBUG_ASSERT(descr.size_aligned < descr.size_allocated);
1526 KMP_DEBUG_ASSERT(addr_aligned + descr.size_aligned <=
1527 addr_allocated + descr.size_allocated);
1530 memset(descr.ptr_allocated, 0xEF, descr.size_allocated);
1535 KE_TRACE(10, (
" free( %p )\n", descr.ptr_allocated));
1537 _free_src_loc(descr.ptr_allocated, _file_, _line_);
1539 free_src_loc(descr.ptr_allocated KMP_SRC_LOC_PARM);
1543 KE_TRACE(25, (
"<- __kmp_free() returns\n"));
1546 #if USE_FAST_MEMORY == 3
1552 #define KMP_FREE_LIST_LIMIT 16
1555 #define DCACHE_LINE 128
1557 void *___kmp_fast_allocate(kmp_info_t *this_thr,
size_t size KMP_SRC_LOC_DECL) {
1564 kmp_mem_descr_t *descr;
1566 KE_TRACE(25, (
"-> __kmp_fast_allocate( T#%d, %d ) called from %s:%d\n",
1567 __kmp_gtid_from_thread(this_thr), (
int)size KMP_SRC_LOC_PARM));
1569 num_lines = (size + DCACHE_LINE - 1) / DCACHE_LINE;
1570 idx = num_lines - 1;
1571 KMP_DEBUG_ASSERT(idx >= 0);
1575 }
else if ((idx >>= 2) == 0) {
1578 }
else if ((idx >>= 2) == 0) {
1581 }
else if ((idx >>= 2) == 0) {
1588 ptr = this_thr->th.th_free_lists[index].th_free_list_self;
1591 this_thr->th.th_free_lists[index].th_free_list_self = *((
void **)ptr);
1594 ((kmp_mem_descr_t *)((kmp_uintptr_t)ptr -
sizeof(kmp_mem_descr_t)))
1598 ptr = TCR_SYNC_PTR(this_thr->th.th_free_lists[index].th_free_list_sync);
1603 while (!KMP_COMPARE_AND_STORE_PTR(
1604 &this_thr->th.th_free_lists[index].th_free_list_sync, ptr,
nullptr)) {
1606 ptr = TCR_SYNC_PTR(this_thr->th.th_free_lists[index].th_free_list_sync);
1610 this_thr->th.th_free_lists[index].th_free_list_self = *((
void **)ptr);
1613 ((kmp_mem_descr_t *)((kmp_uintptr_t)ptr -
sizeof(kmp_mem_descr_t)))
1620 size = num_lines * DCACHE_LINE;
1622 alloc_size = size +
sizeof(kmp_mem_descr_t) + DCACHE_LINE;
1623 KE_TRACE(25, (
"__kmp_fast_allocate: T#%d Calling __kmp_thread_malloc with "
1625 __kmp_gtid_from_thread(this_thr), alloc_size));
1626 alloc_ptr = bget(this_thr, (bufsize)alloc_size);
1629 ptr = (
void *)((((kmp_uintptr_t)alloc_ptr) +
sizeof(kmp_mem_descr_t) +
1631 ~(DCACHE_LINE - 1));
1632 descr = (kmp_mem_descr_t *)(((kmp_uintptr_t)ptr) -
sizeof(kmp_mem_descr_t));
1634 descr->ptr_allocated = alloc_ptr;
1636 descr->ptr_aligned = (
void *)this_thr;
1639 descr->size_aligned = size;
1642 KE_TRACE(25, (
"<- __kmp_fast_allocate( T#%d ) returns %p\n",
1643 __kmp_gtid_from_thread(this_thr), ptr));
1649 void ___kmp_fast_free(kmp_info_t *this_thr,
void *ptr KMP_SRC_LOC_DECL) {
1650 kmp_mem_descr_t *descr;
1651 kmp_info_t *alloc_thr;
1656 KE_TRACE(25, (
"-> __kmp_fast_free( T#%d, %p ) called from %s:%d\n",
1657 __kmp_gtid_from_thread(this_thr), ptr KMP_SRC_LOC_PARM));
1658 KMP_ASSERT(ptr != NULL);
1660 descr = (kmp_mem_descr_t *)(((kmp_uintptr_t)ptr) -
sizeof(kmp_mem_descr_t));
1662 KE_TRACE(26, (
" __kmp_fast_free: size_aligned=%d\n",
1663 (
int)descr->size_aligned));
1665 size = descr->size_aligned;
1667 idx = DCACHE_LINE * 2;
1670 }
else if ((idx <<= 1) == size) {
1672 }
else if ((idx <<= 2) == size) {
1674 }
else if ((idx <<= 2) == size) {
1677 KMP_DEBUG_ASSERT(size > DCACHE_LINE * 64);
1681 alloc_thr = (kmp_info_t *)descr->ptr_aligned;
1682 if (alloc_thr == this_thr) {
1684 *((
void **)ptr) = this_thr->th.th_free_lists[index].th_free_list_self;
1685 this_thr->th.th_free_lists[index].th_free_list_self = ptr;
1687 void *head = this_thr->th.th_free_lists[index].th_free_list_other;
1690 this_thr->th.th_free_lists[index].th_free_list_other = ptr;
1691 *((
void **)ptr) = NULL;
1692 descr->size_allocated = (size_t)1;
1695 kmp_mem_descr_t *dsc =
1696 (kmp_mem_descr_t *)((
char *)head -
sizeof(kmp_mem_descr_t));
1698 kmp_info_t *q_th = (kmp_info_t *)(dsc->ptr_aligned);
1700 dsc->size_allocated + 1;
1701 if (q_th == alloc_thr && q_sz <= KMP_FREE_LIST_LIMIT) {
1703 *((
void **)ptr) = head;
1704 descr->size_allocated = q_sz;
1705 this_thr->th.th_free_lists[index].th_free_list_other = ptr;
1712 void *next = *((
void **)head);
1713 while (next != NULL) {
1716 ((kmp_mem_descr_t *)((
char *)next -
sizeof(kmp_mem_descr_t)))
1719 ((kmp_mem_descr_t *)((
char *)tail -
sizeof(kmp_mem_descr_t)))
1722 next = *((
void **)next);
1724 KMP_DEBUG_ASSERT(q_th != NULL);
1726 old_ptr = TCR_PTR(q_th->th.th_free_lists[index].th_free_list_sync);
1729 *((
void **)tail) = old_ptr;
1731 while (!KMP_COMPARE_AND_STORE_PTR(
1732 &q_th->th.th_free_lists[index].th_free_list_sync, old_ptr, head)) {
1734 old_ptr = TCR_PTR(q_th->th.th_free_lists[index].th_free_list_sync);
1735 *((
void **)tail) = old_ptr;
1739 this_thr->th.th_free_lists[index].th_free_list_other = ptr;
1740 *((
void **)ptr) = NULL;
1741 descr->size_allocated = (size_t)1;
1748 KE_TRACE(25, (
"__kmp_fast_free: T#%d Calling __kmp_thread_free for size %d\n",
1749 __kmp_gtid_from_thread(this_thr), size));
1750 __kmp_bget_dequeue(this_thr);
1751 brel(this_thr, descr->ptr_allocated);
1754 KE_TRACE(25, (
"<- __kmp_fast_free() returns\n"));
1760 void __kmp_initialize_fast_memory(kmp_info_t *this_thr) {
1761 KE_TRACE(10, (
"__kmp_initialize_fast_memory: Called from th %p\n", this_thr));
1763 memset(this_thr->th.th_free_lists, 0, NUM_LISTS *
sizeof(kmp_free_list_t));
1768 void __kmp_free_fast_memory(kmp_info_t *th) {
1771 thr_data_t *thr = get_thr_data(th);
1775 5, (
"__kmp_free_fast_memory: Called T#%d\n", __kmp_gtid_from_thread(th)));
1777 __kmp_bget_dequeue(th);
1780 for (bin = 0; bin < MAX_BGET_BINS; ++bin) {
1781 bfhead_t *b = thr->freelist[bin].ql.flink;
1782 while (b != &thr->freelist[bin]) {
1783 if ((kmp_uintptr_t)b->bh.bb.bthr & 1) {
1791 while (lst != NULL) {
1793 KE_TRACE(10, (
"__kmp_free_fast_memory: freeing %p, next=%p th %p (%d)\n",
1794 lst, next, th, __kmp_gtid_from_thread(th)));
1795 (*thr->relfcn)(lst);
1801 lst = (
void **)next;
1805 5, (
"__kmp_free_fast_memory: Freed T#%d\n", __kmp_gtid_from_thread(th)));
1808 #endif // USE_FAST_MEMORY