18 #ifndef __STARPU_UTIL_H__
19 #define __STARPU_UTIL_H__
37 #if defined __GNUC__ && defined __GNUC_MINOR__
38 # define STARPU_GNUC_PREREQ(maj, min) \
39 ((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
41 # define STARPU_GNUC_PREREQ(maj, min) 0
45 # define STARPU_UNLIKELY(expr) (__builtin_expect(!!(expr),0))
46 # define STARPU_LIKELY(expr) (__builtin_expect(!!(expr),1))
47 # define STARPU_ATTRIBUTE_UNUSED __attribute__((unused))
48 # define STARPU_ATTRIBUTE_NORETURN __attribute__((noreturn))
49 # define STARPU_ATTRIBUTE_INTERNAL __attribute__ ((visibility ("internal")))
50 # define STARPU_ATTRIBUTE_MALLOC __attribute__((malloc))
51 # define STARPU_ATTRIBUTE_WARN_UNUSED_RESULT __attribute__((warn_unused_result))
52 # define STARPU_ATTRIBUTE_PURE __attribute__((pure))
53 # define STARPU_ATTRIBUTE_ALIGNED(size) __attribute__((aligned(size)))
55 # define STARPU_UNLIKELY(expr) (expr)
56 # define STARPU_LIKELY(expr) (expr)
57 # define STARPU_ATTRIBUTE_UNUSED
58 # define STARPU_ATTRIBUTE_NORETURN
59 # define STARPU_ATTRIBUTE_INTERNAL
60 # define STARPU_ATTRIBUTE_MALLOC
61 # define STARPU_ATTRIBUTE_WARN_UNUSED_RESULT
62 # define STARPU_ATTRIBUTE_PURE
63 # define STARPU_ATTRIBUTE_ALIGNED(size)
68 #if defined(c_plusplus) || defined(__cplusplus)
69 # define STARPU_INLINE inline
70 #elif defined(_MSC_VER) || defined(__HP_cc)
71 # define STARPU_INLINE __inline
73 # define STARPU_INLINE __inline__
76 #if STARPU_GNUC_PREREQ(3, 1) && !defined(BUILDING_STARPU) && !defined(STARPU_USE_DEPRECATED_API) && !defined(STARPU_USE_DEPRECATED_ONE_ZERO_API)
77 #define STARPU_DEPRECATED __attribute__((__deprecated__))
79 #define STARPU_DEPRECATED
82 #if STARPU_GNUC_PREREQ(3,3)
83 #define STARPU_WARN_UNUSED_RESULT __attribute__((__warn_unused_result__))
85 #define STARPU_WARN_UNUSED_RESULT
88 #define STARPU_POISON_PTR ((void *)0xdeadbeef)
90 #define STARPU_MIN(a,b) ((a)<(b)?(a):(b))
91 #define STARPU_MAX(a,b) ((a)<(b)?(b):(a))
93 #define STARPU_BACKTRACE_LENGTH 32
95 # define STARPU_DUMP_BACKTRACE() do { \
96 void *__ptrs[STARPU_BACKTRACE_LENGTH]; \
97 int __n = backtrace(__ptrs, STARPU_BACKTRACE_LENGTH); \
98 backtrace_symbols_fd(__ptrs, __n, 2); \
101 # define STARPU_DUMP_BACKTRACE() do { } while (0)
104 #ifdef STARPU_NO_ASSERT
105 #define STARPU_ASSERT(x) do { } while(0)
106 #define STARPU_ASSERT_MSG(x, msg, ...) do { } while(0)
108 # if defined(__CUDACC__) && defined(STARPU_HAVE_WINDOWS)
109 # define STARPU_ASSERT(x) do { if (STARPU_UNLIKELY(!(x))) *(int*)NULL = 0; } while(0)
110 # define STARPU_ASSERT_MSG(x, msg, ...) do { if (STARPU_UNLIKELY(!(x))) { fprintf(stderr, "[starpu][%s][assert failure] " msg "\n", __starpu_func__, ## __VA_ARGS__); *(int*)NULL = 0; }} while(0)
112 # define STARPU_ASSERT(x) do { if (STARPU_UNLIKELY(!(x))) { STARPU_DUMP_BACKTRACE(); assert(x); } } while (0)
113 # define STARPU_ASSERT_MSG(x, msg, ...) do { if (STARPU_UNLIKELY(!(x))) { fprintf(stderr, "[starpu][%s][assert failure] " msg "\n", __starpu_func__, ## __VA_ARGS__); STARPU_DUMP_BACKTRACE(); assert(x); } } while(0)
118 #define STARPU_ABORT() do { \
119 fprintf(stderr, "[starpu][abort][%s()@%s:%d]\n", __starpu_func__, __FILE__, __LINE__); \
123 #define STARPU_ABORT_MSG(msg, ...) do { \
124 fprintf(stderr, "[starpu][abort][%s()@%s:%d] " msg "\n", __starpu_func__, __FILE__, __LINE__, ## __VA_ARGS__); \
128 #if defined(STARPU_HAVE_STRERROR_R)
129 # define STARPU_CHECK_RETURN_VALUE(err, message, ...) {if (STARPU_UNLIKELY(err != 0)) { \
130 char xmessage[256]; strerror_r(-err, xmessage, 256); \
131 fprintf(stderr, "[starpu] Unexpected value: <%d:%s> returned for " message "\n", err, xmessage, ## __VA_ARGS__); \
133 # define STARPU_CHECK_RETURN_VALUE_IS(err, value, message, ...) {if (STARPU_UNLIKELY(err != value)) { \
134 char xmessage[256]; strerror_r(-err, xmessage, 256); \
135 fprintf(stderr, "[starpu] Unexpected value: <%d!=%d:%s> returned for " message "\n", err, value, xmessage, ## __VA_ARGS__); \
138 # define STARPU_CHECK_RETURN_VALUE(err, message, ...) {if (STARPU_UNLIKELY(err != 0)) { \
139 fprintf(stderr, "[starpu] Unexpected value: <%d> returned for " message "\n", err, ## __VA_ARGS__); \
141 # define STARPU_CHECK_RETURN_VALUE_IS(err, value, message, ...) {if (STARPU_UNLIKELY(err != value)) { \
142 fprintf(stderr, "[starpu] Unexpected value: <%d != %d> returned for " message "\n", err, value, ## __VA_ARGS__); \
146 #if defined(__i386__) || defined(__x86_64__)
148 static __starpu_inline
unsigned starpu_cmpxchg(
unsigned *ptr,
unsigned old,
unsigned next)
150 __asm__ __volatile__(
"lock cmpxchgl %2,%1":
"+a" (old),
"+m" (*ptr) :
"q" (next) :
"memory");
153 static __starpu_inline
unsigned starpu_xchg(
unsigned *ptr,
unsigned next)
156 __asm__ __volatile__(
"xchgl %1,%0":
"+m" (*ptr),
"+q" (next) : :
"memory");
159 #define STARPU_HAVE_XCHG
162 #define STARPU_ATOMIC_SOMETHING(name,expr) \
163 static __starpu_inline unsigned starpu_atomic_##name(unsigned *ptr, unsigned value) \
165 unsigned old, next; \
170 if (starpu_cmpxchg(ptr, old, next) == old) \
176 #ifdef STARPU_HAVE_SYNC_FETCH_AND_ADD
177 #define STARPU_ATOMIC_ADD(ptr, value) (__sync_fetch_and_add ((ptr), (value)) + (value))
178 #elif defined(STARPU_HAVE_XCHG)
179 STARPU_ATOMIC_SOMETHING(add, old +
value)
180 #define STARPU_ATOMIC_ADD(ptr, value) starpu_atomic_add(ptr, value)
183 #ifdef STARPU_HAVE_SYNC_FETCH_AND_OR
184 #define STARPU_ATOMIC_OR(ptr, value) (__sync_fetch_and_or ((ptr), (value)))
185 #elif defined(STARPU_HAVE_XCHG)
186 STARPU_ATOMIC_SOMETHING(or, old |
value)
187 #define STARPU_ATOMIC_OR(ptr, value) starpu_atomic_or(ptr, value)
190 #ifdef STARPU_HAVE_SYNC_BOOL_COMPARE_AND_SWAP
191 #define STARPU_BOOL_COMPARE_AND_SWAP(ptr, old, value) (__sync_bool_compare_and_swap ((ptr), (old), (value)))
192 #elif defined(STARPU_HAVE_XCHG)
193 #define STARPU_BOOL_COMPARE_AND_SWAP(ptr, old, value) (starpu_cmpxchg((ptr), (old), (value)) == (old))
196 #ifdef STARPU_HAVE_SYNC_LOCK_TEST_AND_SET
197 #define STARPU_TEST_AND_SET(ptr, value) (__sync_lock_test_and_set ((ptr), (value)))
198 #define STARPU_RELEASE(ptr) (__sync_lock_release ((ptr)))
199 #elif defined(STARPU_HAVE_XCHG)
200 #define STARPU_TEST_AND_SET(ptr, value) (starpu_xchg((ptr), (value)))
201 #define STARPU_RELEASE(ptr) (starpu_xchg((ptr), 0))
204 #ifdef STARPU_HAVE_SYNC_SYNCHRONIZE
205 #define STARPU_SYNCHRONIZE() __sync_synchronize()
206 #elif defined(__i386__)
207 #define STARPU_SYNCHRONIZE() __asm__ __volatile__("lock; addl $0,0(%%esp)" ::: "memory")
208 #elif defined(__x86_64__)
209 #define STARPU_SYNCHRONIZE() __asm__ __volatile__("mfence" ::: "memory")
210 #elif defined(__ppc__) || defined(__ppc64__)
211 #define STARPU_SYNCHRONIZE() __asm__ __volatile__("sync" ::: "memory")
214 #if defined(__i386__) || defined(__KNC__) || defined(__KNF__)
215 #define STARPU_RMB() __asm__ __volatile__("lock; addl $0,0(%%esp)" ::: "memory")
216 #define STARPU_WMB() __asm__ __volatile__("lock; addl $0,0(%%esp)" ::: "memory")
217 #elif defined(__x86_64__)
218 #define STARPU_RMB() __asm__ __volatile__("lfence" ::: "memory")
219 #define STARPU_WMB() __asm__ __volatile__("sfence" ::: "memory")
220 #elif defined(__ppc__) || defined(__ppc64__)
221 #define STARPU_RMB() __asm__ __volatile__("sync" ::: "memory")
222 #define STARPU_WMB() __asm__ __volatile__("sync" ::: "memory")
224 #define STARPU_RMB() STARPU_SYNCHRONIZE()
225 #define STARPU_WMB() STARPU_SYNCHRONIZE()
241 extern int _starpu_silent;
243 char *starpu_getenv(
const char *str);
250 strval = starpu_getenv(str);
257 val = strtol(strval, &check, 10);
259 fprintf(stderr,
"The %s environment variable must contain an integer\n", str);
274 static __starpu_inline
int starpu_get_env_number_default(
const char *str,
int defval)
283 void starpu_trace_user_event(
unsigned long code);
288 void starpu_execute_on_each_worker_ex(
void (*func)(
void *),
void *arg, uint32_t where,
const char *
name);
294 void starpu_execute_on_specific_workers(
void (*func)(
void*),
void * arg,
unsigned num_workers,
unsigned * workers,
const char *
name);
303 #include <sys/types.h>
304 #include <sys/stat.h>
309 #if !defined(_MSC_VER) || defined(BUILDING_STARPU)
312 #if !defined(STARPU_HAVE_STRUCT_TIMESPEC) || defined(_MSC_VER)
314 #ifndef STARPU_TIMESPEC_DEFINED
315 #define STARPU_TIMESPEC_DEFINED 1
323 #if defined(__MINGW32__) || defined(__CYGWIN__)
324 #include <sys/time.h>
327 #include <sys/time.h>