From 800bcc8c00f3ce940aa174845bb61faca9e85d36 Mon Sep 17 00:00:00 2001 From: Jakub Jelinek Date: Tue, 19 May 2020 10:11:01 +0200 Subject: [PATCH] openmp: Add basic library allocator support. This patch adds very basic allocator support (omp_{init,destroy}_allocator, omp_{alloc,free}, omp_[sg]et_default_allocator). The plan is to use memkind (likely dlopened) for high bandwidth memory, but that part isn't implemented yet, probably mlock for pinned memory and see what other options there are for other kinds of memory. For offloading targets, we need to decide if we want to support the dynamic allocators (and on which targets), or if e.g. all we do is at compile time replace omp_alloc/omp_free calls with constexpr predefined allocators with something special. And allocate directive and allocator/uses_allocators clauses are future work too. 2020-05-19 Jakub Jelinek * omp.h.in (omp_uintptr_t): New typedef. (__GOMP_UINTPTR_T_ENUM): Define. (omp_memspace_handle_t, omp_allocator_handle_t, omp_alloctrait_key_t, omp_alloctrait_value_t, omp_alloctrait_t): New typedefs. (__GOMP_DEFAULT_NULL_ALLOCATOR): Define. (omp_init_allocator, omp_destroy_allocator, omp_set_default_allocator, omp_get_default_allocator, omp_alloc, omp_free): Declare. * libgomp.h (struct gomp_team_state): Add def_allocator field. (gomp_def_allocator): Declare. * libgomp.map (OMP_5.0.1): Export omp_set_default_allocator, omp_get_default_allocator, omp_init_allocator, omp_destroy_allocator, omp_alloc and omp_free. * team.c (gomp_team_start): Copy over ts.def_allocator. * env.c (gomp_def_allocator): New variable. (parse_wait_policy): Adjust function comment. (parse_allocator): New function. (handle_omp_display_env): Print OMP_ALLOCATOR. (initialize_env): Call parse_allocator. * Makefile.am (libgomp_la_SOURCES): Add allocator.c. * allocator.c: New file. * icv.c (omp_set_default_allocator, omp_get_default_allocator): New functions. * testsuite/libgomp.c-c++-common/alloc-1.c: New test. * testsuite/libgomp.c-c++-common/alloc-2.c: New test. * testsuite/libgomp.c-c++-common/alloc-3.c: New test. * Makefile.in: Regenerated. --- libgomp/ChangeLog | 29 ++++ libgomp/Makefile.am | 2 +- libgomp/Makefile.in | 6 +- libgomp/env.c | 62 ++++++- libgomp/icv.c | 19 +++ libgomp/libgomp.h | 4 + libgomp/libgomp.map | 10 ++ libgomp/omp.h.in | 90 ++++++++++ libgomp/team.c | 2 + .../testsuite/libgomp.c-c++-common/alloc-1.c | 157 ++++++++++++++++++ .../testsuite/libgomp.c-c++-common/alloc-2.c | 46 +++++ .../testsuite/libgomp.c-c++-common/alloc-3.c | 28 ++++ 12 files changed, 450 insertions(+), 5 deletions(-) create mode 100644 libgomp/testsuite/libgomp.c-c++-common/alloc-1.c create mode 100644 libgomp/testsuite/libgomp.c-c++-common/alloc-2.c create mode 100644 libgomp/testsuite/libgomp.c-c++-common/alloc-3.c diff --git a/libgomp/ChangeLog b/libgomp/ChangeLog index 0011763acd8..5d406191853 100644 --- a/libgomp/ChangeLog +++ b/libgomp/ChangeLog @@ -1,3 +1,32 @@ +2020-05-19 Jakub Jelinek + + * omp.h.in (omp_uintptr_t): New typedef. + (__GOMP_UINTPTR_T_ENUM): Define. + (omp_memspace_handle_t, omp_allocator_handle_t, omp_alloctrait_key_t, + omp_alloctrait_value_t, omp_alloctrait_t): New typedefs. + (__GOMP_DEFAULT_NULL_ALLOCATOR): Define. + (omp_init_allocator, omp_destroy_allocator, omp_set_default_allocator, + omp_get_default_allocator, omp_alloc, omp_free): Declare. + * libgomp.h (struct gomp_team_state): Add def_allocator field. + (gomp_def_allocator): Declare. + * libgomp.map (OMP_5.0.1): Export omp_set_default_allocator, + omp_get_default_allocator, omp_init_allocator, omp_destroy_allocator, + omp_alloc and omp_free. + * team.c (gomp_team_start): Copy over ts.def_allocator. + * env.c (gomp_def_allocator): New variable. + (parse_wait_policy): Adjust function comment. + (parse_allocator): New function. + (handle_omp_display_env): Print OMP_ALLOCATOR. + (initialize_env): Call parse_allocator. + * Makefile.am (libgomp_la_SOURCES): Add allocator.c. + * allocator.c: New file. + * icv.c (omp_set_default_allocator, omp_get_default_allocator): New + functions. + * testsuite/libgomp.c-c++-common/alloc-1.c: New test. + * testsuite/libgomp.c-c++-common/alloc-2.c: New test. + * testsuite/libgomp.c-c++-common/alloc-3.c: New test. + * Makefile.in: Regenerated. + 2020-05-15 H.J. Lu PR bootstrap/95147 diff --git a/libgomp/Makefile.am b/libgomp/Makefile.am index 669b9e4defd..b84156291e8 100644 --- a/libgomp/Makefile.am +++ b/libgomp/Makefile.am @@ -65,7 +65,7 @@ libgomp_la_SOURCES = alloc.c atomic.c barrier.c critical.c env.c error.c \ proc.c sem.c bar.c ptrlock.c time.c fortran.c affinity.c target.c \ splay-tree.c libgomp-plugin.c oacc-parallel.c oacc-host.c oacc-init.c \ oacc-mem.c oacc-async.c oacc-plugin.c oacc-cuda.c priority_queue.c \ - affinity-fmt.c teams.c oacc-profiling.c oacc-target.c + affinity-fmt.c teams.c allocator.c oacc-profiling.c oacc-target.c include $(top_srcdir)/plugin/Makefrag.am diff --git a/libgomp/Makefile.in b/libgomp/Makefile.in index 7c426caeb68..5ff2ac14db9 100644 --- a/libgomp/Makefile.in +++ b/libgomp/Makefile.in @@ -231,7 +231,8 @@ am_libgomp_la_OBJECTS = alloc.lo atomic.lo barrier.lo critical.lo \ target.lo splay-tree.lo libgomp-plugin.lo oacc-parallel.lo \ oacc-host.lo oacc-init.lo oacc-mem.lo oacc-async.lo \ oacc-plugin.lo oacc-cuda.lo priority_queue.lo affinity-fmt.lo \ - teams.lo oacc-profiling.lo oacc-target.lo $(am__objects_1) + teams.lo allocator.lo oacc-profiling.lo oacc-target.lo \ + $(am__objects_1) libgomp_la_OBJECTS = $(am_libgomp_la_OBJECTS) AM_V_P = $(am__v_P_@AM_V@) am__v_P_ = $(am__v_P_@AM_DEFAULT_V@) @@ -572,7 +573,7 @@ libgomp_la_SOURCES = alloc.c atomic.c barrier.c critical.c env.c \ affinity.c target.c splay-tree.c libgomp-plugin.c \ oacc-parallel.c oacc-host.c oacc-init.c oacc-mem.c \ oacc-async.c oacc-plugin.c oacc-cuda.c priority_queue.c \ - affinity-fmt.c teams.c oacc-profiling.c oacc-target.c \ + affinity-fmt.c teams.c allocator.c oacc-profiling.c oacc-target.c \ $(am__append_4) # Nvidia PTX OpenACC plugin. @@ -765,6 +766,7 @@ distclean-compile: @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/affinity-fmt.Plo@am__quote@ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/affinity.Plo@am__quote@ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/alloc.Plo@am__quote@ +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/allocator.Plo@am__quote@ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/atomic.Plo@am__quote@ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/bar.Plo@am__quote@ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/barrier.Plo@am__quote@ diff --git a/libgomp/env.c b/libgomp/env.c index dbec3ae98a0..c0c4730d47c 100644 --- a/libgomp/env.c +++ b/libgomp/env.c @@ -86,6 +86,7 @@ char *gomp_bind_var_list; unsigned long gomp_bind_var_list_len; void **gomp_places_list; unsigned long gomp_places_list_len; +uintptr_t gomp_def_allocator = omp_default_mem_alloc; int gomp_debug_var; unsigned int gomp_num_teams_var; bool gomp_display_affinity_var; @@ -949,8 +950,7 @@ parse_boolean (const char *name, bool *value) gomp_error ("Invalid value for environment variable %s", name); } -/* Parse the OMP_WAIT_POLICY environment variable and store the - result in gomp_active_wait_policy. */ +/* Parse the OMP_WAIT_POLICY environment variable and return the value. */ static int parse_wait_policy (void) @@ -1084,6 +1084,47 @@ parse_affinity (bool ignore) return false; } +/* Parse the OMP_ALLOCATOR environment variable and return the value. */ + +static uintptr_t +parse_allocator (void) +{ + const char *env; + uintptr_t ret = omp_default_mem_alloc; + + env = getenv ("OMP_ALLOCATOR"); + if (env == NULL) + return ret; + + while (isspace ((unsigned char) *env)) + ++env; + if (0) + ; +#define C(v) \ + else if (strncasecmp (env, #v, sizeof (#v) - 1) == 0) \ + { \ + ret = v; \ + env += sizeof (#v) - 1; \ + } + C (omp_default_mem_alloc) + C (omp_large_cap_mem_alloc) + C (omp_const_mem_alloc) + C (omp_high_bw_mem_alloc) + C (omp_low_lat_mem_alloc) + C (omp_cgroup_mem_alloc) + C (omp_pteam_mem_alloc) + C (omp_thread_mem_alloc) +#undef C + else + env = "X"; + while (isspace ((unsigned char) *env)) + ++env; + if (*env == '\0') + return ret; + gomp_error ("Invalid value for environment variable OMP_ALLOCATOR"); + return omp_default_mem_alloc; +} + static void parse_acc_device_type (void) { @@ -1276,6 +1317,22 @@ handle_omp_display_env (unsigned long stacksize, int wait_policy) gomp_display_affinity_var ? "TRUE" : "FALSE"); fprintf (stderr, " OMP_AFFINITY_FORMAT = '%s'\n", gomp_affinity_format_var); + fprintf (stderr, " OMP_ALLOCATOR = '"); + switch (gomp_def_allocator) + { +#define C(v) case v: fputs (#v, stderr); break; + C (omp_default_mem_alloc) + C (omp_large_cap_mem_alloc) + C (omp_const_mem_alloc) + C (omp_high_bw_mem_alloc) + C (omp_low_lat_mem_alloc) + C (omp_cgroup_mem_alloc) + C (omp_pteam_mem_alloc) + C (omp_thread_mem_alloc) +#undef C + default: break; + } + fputs ("'\n", stderr); if (verbose) { @@ -1312,6 +1369,7 @@ initialize_env (void) parse_int ("OMP_MAX_TASK_PRIORITY", &gomp_max_task_priority_var, true); parse_unsigned_long ("OMP_MAX_ACTIVE_LEVELS", &gomp_max_active_levels_var, true); + gomp_def_allocator = parse_allocator (); if (parse_unsigned_long ("OMP_THREAD_LIMIT", &thread_limit_var, false)) { gomp_global_icv.thread_limit_var diff --git a/libgomp/icv.c b/libgomp/icv.c index ff4430eb76d..b13289b47a7 100644 --- a/libgomp/icv.c +++ b/libgomp/icv.c @@ -197,6 +197,25 @@ omp_get_partition_place_nums (int *place_nums) *place_nums++ = thr->ts.place_partition_off + i; } +void +omp_set_default_allocator (omp_allocator_handle_t allocator) +{ + struct gomp_thread *thr = gomp_thread (); + if (allocator == omp_null_allocator) + allocator = omp_default_mem_alloc; + thr->ts.def_allocator = (uintptr_t) allocator; +} + +omp_allocator_handle_t +omp_get_default_allocator (void) +{ + struct gomp_thread *thr = gomp_thread (); + if (thr->ts.def_allocator == omp_null_allocator) + return (omp_allocator_handle_t) gomp_def_allocator; + else + return (omp_allocator_handle_t) thr->ts.def_allocator; +} + ialias (omp_set_dynamic) ialias (omp_set_nested) ialias (omp_set_num_threads) diff --git a/libgomp/libgomp.h b/libgomp/libgomp.h index f5415bb156c..ca42e0de640 100644 --- a/libgomp/libgomp.h +++ b/libgomp/libgomp.h @@ -397,6 +397,9 @@ struct gomp_team_state unsigned place_partition_off; unsigned place_partition_len; + /* Def-allocator-var ICV. */ + uintptr_t def_allocator; + #ifdef HAVE_SYNC_BUILTINS /* Number of single stmts encountered. */ unsigned long single_count; @@ -450,6 +453,7 @@ extern int gomp_debug_var; extern bool gomp_display_affinity_var; extern char *gomp_affinity_format_var; extern size_t gomp_affinity_format_len; +extern uintptr_t gomp_def_allocator; extern int goacc_device_num; extern char *goacc_device_type; extern int goacc_default_dims[GOMP_DIM_MAX]; diff --git a/libgomp/libgomp.map b/libgomp/libgomp.map index c7268bfc8e7..012e3d645fe 100644 --- a/libgomp/libgomp.map +++ b/libgomp/libgomp.map @@ -180,6 +180,16 @@ OMP_5.0 { omp_pause_resource_all_; } OMP_4.5; +OMP_5.0.1 { + global: + omp_set_default_allocator; + omp_get_default_allocator; + omp_init_allocator; + omp_destroy_allocator; + omp_alloc; + omp_free; +} OMP_5.0; + GOMP_1.0 { global: GOMP_atomic_end; diff --git a/libgomp/omp.h.in b/libgomp/omp.h.in index 06a96c55dc8..e2db33e005f 100644 --- a/libgomp/omp.h.in +++ b/libgomp/omp.h.in @@ -90,11 +90,87 @@ typedef enum omp_pause_resource_t omp_pause_hard = 2 } omp_pause_resource_t; +typedef __UINTPTR_TYPE__ omp_uintptr_t; + +#if __cplusplus >= 201103L +# define __GOMP_UINTPTR_T_ENUM : omp_uintptr_t +#else +# define __GOMP_UINTPTR_T_ENUM +#endif + +typedef enum omp_memspace_handle_t __GOMP_UINTPTR_T_ENUM +{ + omp_default_mem_space = 0, + omp_large_cap_mem_space = 1, + omp_const_mem_space = 2, + omp_high_bw_mem_space = 3, + omp_low_lat_mem_space = 4, + __omp_memspace_handle_t_max__ = __UINTPTR_MAX__ +} omp_memspace_handle_t; + +typedef enum omp_allocator_handle_t __GOMP_UINTPTR_T_ENUM +{ + omp_null_allocator = 0, + omp_default_mem_alloc = 1, + omp_large_cap_mem_alloc = 2, + omp_const_mem_alloc = 3, + omp_high_bw_mem_alloc = 4, + omp_low_lat_mem_alloc = 5, + omp_cgroup_mem_alloc = 6, + omp_pteam_mem_alloc = 7, + omp_thread_mem_alloc = 8, + __omp_allocator_handle_t_max__ = __UINTPTR_MAX__ +} omp_allocator_handle_t; + +typedef enum omp_alloctrait_key_t +{ + omp_atk_sync_hint = 1, + omp_atk_alignment = 2, + omp_atk_access = 3, + omp_atk_pool_size = 4, + omp_atk_fallback = 5, + omp_atk_fb_data = 6, + omp_atk_pinned = 7, + omp_atk_partition = 8 +} omp_alloctrait_key_t; + +typedef enum omp_alloctrait_value_t +{ + omp_atv_false = 0, + omp_atv_true = 1, + omp_atv_default = 2, + omp_atv_contended = 3, + omp_atv_uncontended = 4, + omp_atv_sequential = 5, + omp_atv_private = 6, + omp_atv_all = 7, + omp_atv_thread = 8, + omp_atv_pteam = 9, + omp_atv_cgroup = 10, + omp_atv_default_mem_fb = 11, + omp_atv_null_fb = 12, + omp_atv_abort_fb = 13, + omp_atv_allocator_fb = 14, + omp_atv_environment = 15, + omp_atv_nearest = 16, + omp_atv_blocked = 17, + omp_atv_interleaved = 18, + __omp_alloctrait_value_max__ = __UINTPTR_MAX__ +} omp_alloctrait_value_t; + +typedef struct omp_alloctrait_t +{ + omp_alloctrait_key_t key; + omp_uintptr_t value; +} omp_alloctrait_t; + #ifdef __cplusplus extern "C" { # define __GOMP_NOTHROW throw () +# define __GOMP_DEFAULT_NULL_ALLOCATOR = omp_null_allocator #else # define __GOMP_NOTHROW __attribute__((__nothrow__)) +# define __GOMP_DEFAULT_NULL_ALLOCATOR #endif extern void omp_set_num_threads (int) __GOMP_NOTHROW; @@ -188,6 +264,20 @@ extern __SIZE_TYPE__ omp_capture_affinity (char *, __SIZE_TYPE__, const char *) extern int omp_pause_resource (omp_pause_resource_t, int) __GOMP_NOTHROW; extern int omp_pause_resource_all (omp_pause_resource_t) __GOMP_NOTHROW; +extern omp_allocator_handle_t omp_init_allocator (omp_memspace_handle_t, + int, + const omp_alloctrait_t []) + __GOMP_NOTHROW; +extern void omp_destroy_allocator (omp_allocator_handle_t) __GOMP_NOTHROW; +extern void omp_set_default_allocator (omp_allocator_handle_t) __GOMP_NOTHROW; +extern omp_allocator_handle_t omp_get_default_allocator (void) __GOMP_NOTHROW; +extern void *omp_alloc (__SIZE_TYPE__, + omp_allocator_handle_t __GOMP_DEFAULT_NULL_ALLOCATOR) + __GOMP_NOTHROW; +extern void omp_free (void *, + omp_allocator_handle_t __GOMP_DEFAULT_NULL_ALLOCATOR) + __GOMP_NOTHROW; + #ifdef __cplusplus } #endif diff --git a/libgomp/team.c b/libgomp/team.c index 82f26a05687..cbc3aec0265 100644 --- a/libgomp/team.c +++ b/libgomp/team.c @@ -636,6 +636,7 @@ gomp_team_start (void (*fn) (void *), void *data, unsigned nthreads, nthr->ts.active_level = thr->ts.active_level; nthr->ts.place_partition_off = place_partition_off; nthr->ts.place_partition_len = place_partition_len; + nthr->ts.def_allocator = thr->ts.def_allocator; #ifdef HAVE_SYNC_BUILTINS nthr->ts.single_count = 0; #endif @@ -823,6 +824,7 @@ gomp_team_start (void (*fn) (void *), void *data, unsigned nthreads, start_data->ts.team_id = i; start_data->ts.level = team->prev_ts.level + 1; start_data->ts.active_level = thr->ts.active_level; + start_data->ts.def_allocator = thr->ts.def_allocator; #ifdef HAVE_SYNC_BUILTINS start_data->ts.single_count = 0; #endif diff --git a/libgomp/testsuite/libgomp.c-c++-common/alloc-1.c b/libgomp/testsuite/libgomp.c-c++-common/alloc-1.c new file mode 100644 index 00000000000..9259a9c44df --- /dev/null +++ b/libgomp/testsuite/libgomp.c-c++-common/alloc-1.c @@ -0,0 +1,157 @@ +#include +#include +#include + +const omp_alloctrait_t traits2[] += { { omp_atk_alignment, 16 }, + { omp_atk_sync_hint, omp_atv_default }, + { omp_atk_access, omp_atv_default }, + { omp_atk_pool_size, 1024 }, + { omp_atk_fallback, omp_atv_default_mem_fb }, + { omp_atk_partition, omp_atv_environment } }; +omp_alloctrait_t traits3[] += { { omp_atk_sync_hint, omp_atv_uncontended }, + { omp_atk_alignment, 32 }, + { omp_atk_access, omp_atv_all }, + { omp_atk_pool_size, 512 }, + { omp_atk_fallback, omp_atv_allocator_fb }, + { omp_atk_fb_data, 0 }, + { omp_atk_partition, omp_atv_default } }; +const omp_alloctrait_t traits4[] += { { omp_atk_alignment, 128 }, + { omp_atk_pool_size, 1024 }, + { omp_atk_fallback, omp_atv_null_fb } }; + +int +main () +{ + int *volatile p = (int *) omp_alloc (3 * sizeof (int), omp_default_mem_alloc); + int *volatile q; + int *volatile r; + omp_alloctrait_t traits[3] + = { { omp_atk_alignment, 64 }, + { omp_atk_fallback, omp_atv_null_fb }, + { omp_atk_pool_size, 4096 } }; + omp_allocator_handle_t a, a2; + + if ((((uintptr_t) p) % __alignof (int)) != 0) + abort (); + p[0] = 1; + p[1] = 2; + p[2] = 3; + omp_free (p, omp_default_mem_alloc); + p = (int *) omp_alloc (2 * sizeof (int), omp_default_mem_alloc); + if ((((uintptr_t) p) % __alignof (int)) != 0) + abort (); + p[0] = 1; + p[1] = 2; + omp_free (p, omp_null_allocator); + omp_set_default_allocator (omp_default_mem_alloc); + p = (int *) omp_alloc (sizeof (int), omp_null_allocator); + if ((((uintptr_t) p) % __alignof (int)) != 0) + abort (); + p[0] = 3; + omp_free (p, omp_get_default_allocator ()); + + a = omp_init_allocator (omp_default_mem_space, 3, traits); + if (a == omp_null_allocator) + abort (); + p = (int *) omp_alloc (3072, a); + if ((((uintptr_t) p) % 64) != 0) + abort (); + p[0] = 1; + p[3071 / sizeof (int)] = 2; + if (omp_alloc (3072, a) != NULL) + abort (); + omp_free (p, a); + p = (int *) omp_alloc (3072, a); + p[0] = 3; + p[3071 / sizeof (int)] = 4; + omp_free (p, omp_null_allocator); + omp_set_default_allocator (a); + if (omp_get_default_allocator () != a) + abort (); + p = (int *) omp_alloc (3072, omp_null_allocator); + if (omp_alloc (3072, omp_null_allocator) != NULL) + abort (); + omp_free (p, a); + omp_destroy_allocator (a); + + a = omp_init_allocator (omp_default_mem_space, + sizeof (traits2) / sizeof (traits2[0]), + traits2); + if (a == omp_null_allocator) + abort (); + if (traits3[5].key != omp_atk_fb_data) + abort (); + traits3[5].value = (uintptr_t) a; + a2 = omp_init_allocator (omp_default_mem_space, + sizeof (traits3) / sizeof (traits3[0]), + traits3); + if (a2 == omp_null_allocator) + abort (); + p = (int *) omp_alloc (420, a2); + if ((((uintptr_t) p) % 32) != 0) + abort (); + p[0] = 5; + p[419 / sizeof (int)] = 6; + q = (int *) omp_alloc (768, a2); + if ((((uintptr_t) q) % 16) != 0) + abort (); + q[0] = 7; + q[767 / sizeof (int)] = 8; + r = (int *) omp_alloc (512, a2); + if ((((uintptr_t) r) % __alignof (int)) != 0) + abort (); + r[0] = 9; + r[511 / sizeof (int)] = 10; + omp_free (p, omp_null_allocator); + omp_free (q, a2); + omp_free (r, omp_null_allocator); + omp_destroy_allocator (a2); + omp_destroy_allocator (a); + + a = omp_init_allocator (omp_default_mem_space, + sizeof (traits4) / sizeof (traits4[0]), + traits4); + if (a == omp_null_allocator) + abort (); + if (traits3[5].key != omp_atk_fb_data) + abort (); + traits3[5].value = (uintptr_t) a; + a2 = omp_init_allocator (omp_default_mem_space, + sizeof (traits3) / sizeof (traits3[0]), + traits3); + if (a2 == omp_null_allocator) + abort (); + omp_set_default_allocator (a2); +#ifdef __cplusplus + p = static_cast (omp_alloc (420)); +#else + p = (int *) omp_alloc (420, omp_null_allocator); +#endif + if ((((uintptr_t) p) % 32) != 0) + abort (); + p[0] = 5; + p[419 / sizeof (int)] = 6; + q = (int *) omp_alloc (768, omp_null_allocator); + if ((((uintptr_t) q) % 128) != 0) + abort (); + q[0] = 7; + q[767 / sizeof (int)] = 8; + if (omp_alloc (768, omp_null_allocator) != NULL) + abort (); +#ifdef __cplusplus + omp_free (p); + omp_free (q); + omp_free (NULL); +#else + omp_free (p, omp_null_allocator); + omp_free (q, omp_null_allocator); + omp_free (NULL, omp_null_allocator); +#endif + omp_free (NULL, omp_null_allocator); + omp_destroy_allocator (a2); + omp_destroy_allocator (a); + return 0; +} diff --git a/libgomp/testsuite/libgomp.c-c++-common/alloc-2.c b/libgomp/testsuite/libgomp.c-c++-common/alloc-2.c new file mode 100644 index 00000000000..ee539580f2b --- /dev/null +++ b/libgomp/testsuite/libgomp.c-c++-common/alloc-2.c @@ -0,0 +1,46 @@ +#include +#include +#include + +int +main () +{ + omp_alloctrait_t traits[3] + = { { omp_atk_alignment, 64 }, + { omp_atk_fallback, omp_atv_null_fb }, + { omp_atk_pool_size, 4096 } }; + omp_allocator_handle_t a + = omp_init_allocator (omp_default_mem_space, 3, traits); + if (a == omp_null_allocator) + abort (); + + #pragma omp parallel num_threads(4) + { + int n = omp_get_thread_num (); + double *volatile p, *volatile q; + omp_set_default_allocator ((n & 1) ? a : omp_default_mem_alloc); + p = (double *) omp_alloc (1696, omp_null_allocator); + if (p == NULL) + abort (); + p[0] = 1.0; + p[1695 / sizeof (double *)] = 2.0; + #pragma omp barrier + omp_set_default_allocator ((n & 1) ? omp_default_mem_alloc : a); + q = (double *) omp_alloc (1696, omp_null_allocator); + if (n & 1) + { + if (q == NULL) + abort (); + q[0] = 3.0; + q[1695 / sizeof (double *)] = 4.0; + } + else if (q != NULL) + abort (); + #pragma omp barrier + omp_free (p, omp_null_allocator); + omp_free (q, omp_null_allocator); + omp_set_default_allocator (omp_default_mem_alloc); + } + omp_destroy_allocator (a); + return 0; +} diff --git a/libgomp/testsuite/libgomp.c-c++-common/alloc-3.c b/libgomp/testsuite/libgomp.c-c++-common/alloc-3.c new file mode 100644 index 00000000000..a30cdc05e60 --- /dev/null +++ b/libgomp/testsuite/libgomp.c-c++-common/alloc-3.c @@ -0,0 +1,28 @@ +/* { dg-set-target-env-var OMP_ALLOCATOR "omp_cgroup_mem_alloc" } */ +/* { dg-set-target-env-var OMP_DISPLAY_ENV "true" } */ + +#include +#include +#include + +int +main () +{ + const char *p = getenv ("OMP_ALLOCATOR"); + if (p && strcmp (p, "omp_cgroup_mem_alloc") == 0) + { + if (omp_get_default_allocator () != omp_cgroup_mem_alloc) + abort (); + #pragma omp parallel num_threads (2) + { + if (omp_get_default_allocator () != omp_cgroup_mem_alloc) + abort (); + #pragma omp parallel num_threads (2) + { + if (omp_get_default_allocator () != omp_cgroup_mem_alloc) + abort (); + } + } + } + return 0; +}