18 #ifndef __STARPU_UTIL_H__
19 #define __STARPU_UTIL_H__
33 #if defined __GNUC__ && defined __GNUC_MINOR__
34 # define STARPU_GNUC_PREREQ(maj, min) \
35 ((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
37 # define STARPU_GNUC_PREREQ(maj, min) 0
41 # define STARPU_UNLIKELY(expr) (__builtin_expect(!!(expr),0))
42 # define STARPU_LIKELY(expr) (__builtin_expect(!!(expr),1))
43 # define STARPU_ATTRIBUTE_UNUSED __attribute__((unused))
44 # define STARPU_ATTRIBUTE_NORETURN __attribute__((noreturn))
45 # define STARPU_ATTRIBUTE_INTERNAL __attribute__ ((visibility ("internal")))
46 # define STARPU_ATTRIBUTE_MALLOC __attribute__((malloc))
47 # define STARPU_ATTRIBUTE_WARN_UNUSED_RESULT __attribute__((warn_unused_result))
48 # define STARPU_ATTRIBUTE_PURE __attribute__((pure))
49 # define STARPU_ATTRIBUTE_ALIGNED(size) __attribute__((aligned(size)))
51 # define STARPU_UNLIKELY(expr) (expr)
52 # define STARPU_LIKELY(expr) (expr)
53 # define STARPU_ATTRIBUTE_UNUSED
54 # define STARPU_ATTRIBUTE_NORETURN
55 # define STARPU_ATTRIBUTE_INTERNAL
56 # define STARPU_ATTRIBUTE_MALLOC
57 # define STARPU_ATTRIBUTE_WARN_UNUSED_RESULT
58 # define STARPU_ATTRIBUTE_PURE
59 # define STARPU_ATTRIBUTE_ALIGNED(size)
64 #if defined(c_plusplus) || defined(__cplusplus)
65 # define STARPU_INLINE inline
66 #elif defined(_MSC_VER) || defined(__HP_cc)
67 # define STARPU_INLINE __inline
69 # define STARPU_INLINE __inline__
72 #if STARPU_GNUC_PREREQ(3, 1) && !defined(BUILDING_STARPU) && !defined(STARPU_USE_DEPRECATED_API) && !defined(STARPU_USE_DEPRECATED_ONE_ZERO_API)
73 #define STARPU_DEPRECATED __attribute__((__deprecated__))
75 #define STARPU_DEPRECATED
78 #if STARPU_GNUC_PREREQ(3,3)
79 #define STARPU_WARN_UNUSED_RESULT __attribute__((__warn_unused_result__))
81 #define STARPU_WARN_UNUSED_RESULT
84 #define STARPU_POISON_PTR ((void *)0xdeadbeef)
86 #define STARPU_MIN(a,b) ((a)<(b)?(a):(b))
87 #define STARPU_MAX(a,b) ((a)<(b)?(b):(a))
89 #ifdef STARPU_NO_ASSERT
90 #define STARPU_ASSERT(x) do { } while(0)
91 #define STARPU_ASSERT_MSG(x, msg, ...) do { } while(0)
93 # if defined(__CUDACC__) && defined(STARPU_HAVE_WINDOWS)
94 # define STARPU_ASSERT(x) do { if (STARPU_UNLIKELY(!(x))) *(int*)NULL = 0; } while(0)
95 # define STARPU_ASSERT_MSG(x, msg, ...) do { if (STARPU_UNLIKELY(!(x))) { fprintf(stderr, "\n[starpu][%s][assert failure] " msg "\n\n", __starpu_func__, ## __VA_ARGS__); *(int*)NULL = 0; }} while(0)
97 # define STARPU_ASSERT(x) assert(x)
98 # define STARPU_ASSERT_MSG(x, msg, ...) do { if (STARPU_UNLIKELY(!(x))) { fprintf(stderr, "\n[starpu][%s][assert failure] " msg "\n\n", __starpu_func__, ## __VA_ARGS__); } ; assert(x); } while(0)
103 #define STARPU_ABORT() do { \
104 fprintf(stderr, "[starpu][abort][%s()@%s:%d]\n", __starpu_func__, __FILE__, __LINE__); \
108 #define STARPU_ABORT_MSG(msg, ...) do { \
109 fprintf(stderr, "[starpu][abort][%s()@%s:%d] " msg "\n", __starpu_func__, __FILE__, __LINE__, ## __VA_ARGS__); \
113 #if defined(STARPU_HAVE_STRERROR_R)
114 # define STARPU_CHECK_RETURN_VALUE(err, message, ...) {if (STARPU_UNLIKELY(err != 0)) { \
115 char xmessage[256]; strerror_r(-err, xmessage, 256); \
116 fprintf(stderr, "[starpu] Unexpected value: <%d:%s> returned for " message "\n", err, xmessage, ## __VA_ARGS__); \
118 # define STARPU_CHECK_RETURN_VALUE_IS(err, value, message, ...) {if (STARPU_UNLIKELY(err != value)) { \
119 char xmessage[256]; strerror_r(-err, xmessage, 256); \
120 fprintf(stderr, "[starpu] Unexpected value: <%d!=%d:%s> returned for " message "\n", err, value, xmessage, ## __VA_ARGS__); \
123 # define STARPU_CHECK_RETURN_VALUE(err, message, ...) {if (STARPU_UNLIKELY(err != 0)) { \
124 fprintf(stderr, "[starpu] Unexpected value: <%d> returned for " message "\n", err, ## __VA_ARGS__); \
126 # define STARPU_CHECK_RETURN_VALUE_IS(err, value, message, ...) {if (STARPU_UNLIKELY(err != value)) { \
127 fprintf(stderr, "[starpu] Unexpected value: <%d != %d> returned for " message "\n", err, value, ## __VA_ARGS__); \
131 #if defined(__i386__) || defined(__x86_64__)
133 static __starpu_inline
unsigned starpu_cmpxchg(
unsigned *ptr,
unsigned old,
unsigned next)
135 __asm__ __volatile__(
"lock cmpxchgl %2,%1":
"+a" (old),
"+m" (*ptr) :
"q" (next) :
"memory");
138 static __starpu_inline
unsigned starpu_xchg(
unsigned *ptr,
unsigned next)
141 __asm__ __volatile__(
"xchgl %1,%0":
"+m" (*ptr),
"+q" (next) : :
"memory");
144 #define STARPU_HAVE_XCHG
147 #define STARPU_ATOMIC_SOMETHING(name,expr) \
148 static __starpu_inline unsigned starpu_atomic_##name(unsigned *ptr, unsigned value) \
150 unsigned old, next; \
155 if (starpu_cmpxchg(ptr, old, next) == old) \
161 #ifdef STARPU_HAVE_SYNC_FETCH_AND_ADD
162 #define STARPU_ATOMIC_ADD(ptr, value) (__sync_fetch_and_add ((ptr), (value)) + (value))
163 #elif defined(STARPU_HAVE_XCHG)
164 STARPU_ATOMIC_SOMETHING(add, old + value)
165 #define STARPU_ATOMIC_ADD(ptr, value) starpu_atomic_add(ptr, value)
168 #ifdef STARPU_HAVE_SYNC_FETCH_AND_OR
169 #define STARPU_ATOMIC_OR(ptr, value) (__sync_fetch_and_or ((ptr), (value)))
170 #elif defined(STARPU_HAVE_XCHG)
171 STARPU_ATOMIC_SOMETHING(or, old | value)
172 #define STARPU_ATOMIC_OR(ptr, value) starpu_atomic_or(ptr, value)
175 #ifdef STARPU_HAVE_SYNC_BOOL_COMPARE_AND_SWAP
176 #define STARPU_BOOL_COMPARE_AND_SWAP(ptr, old, value) (__sync_bool_compare_and_swap ((ptr), (old), (value)))
177 #elif defined(STARPU_HAVE_XCHG)
178 #define STARPU_BOOL_COMPARE_AND_SWAP(ptr, old, value) (starpu_cmpxchg((ptr), (old), (value)) == (old))
181 #ifdef STARPU_HAVE_SYNC_VAL_COMPARE_AND_SWAP
182 #define STARPU_VAL_COMPARE_AND_SWAP(ptr, old, value) (__sync_val_compare_and_swap ((ptr), (old), (value)))
183 #elif defined(STARPU_HAVE_XCHG)
184 #define STARPU_VAL_COMPARE_AND_SWAP(ptr, old, value) (starpu_cmpxchg((ptr), (old), (value)))
187 #ifdef STARPU_HAVE_SYNC_LOCK_TEST_AND_SET
188 #define STARPU_TEST_AND_SET(ptr, value) (__sync_lock_test_and_set ((ptr), (value)))
189 #define STARPU_RELEASE(ptr) (__sync_lock_release ((ptr)))
190 #elif defined(STARPU_HAVE_XCHG)
191 #define STARPU_TEST_AND_SET(ptr, value) (starpu_xchg((ptr), (value)))
192 #define STARPU_RELEASE(ptr) (starpu_xchg((ptr), 0))
195 #ifdef STARPU_HAVE_SYNC_SYNCHRONIZE
196 #define STARPU_SYNCHRONIZE() __sync_synchronize()
197 #elif defined(__i386__)
198 #define STARPU_SYNCHRONIZE() __asm__ __volatile__("lock; addl $0,0(%%esp)" ::: "memory")
199 #elif defined(__x86_64__)
200 #define STARPU_SYNCHRONIZE() __asm__ __volatile__("mfence" ::: "memory")
201 #elif defined(__ppc__) || defined(__ppc64__)
202 #define STARPU_SYNCHRONIZE() __asm__ __volatile__("sync" ::: "memory")
205 #if defined(__i386__) || defined(__KNC__) || defined(__KNF__)
206 #define STARPU_RMB() __asm__ __volatile__("lock; addl $0,0(%%esp)" ::: "memory")
207 #define STARPU_WMB() __asm__ __volatile__("lock; addl $0,0(%%esp)" ::: "memory")
208 #elif defined(__x86_64__)
209 #define STARPU_RMB() __asm__ __volatile__("lfence" ::: "memory")
210 #define STARPU_WMB() __asm__ __volatile__("sfence" ::: "memory")
211 #elif defined(__ppc__) || defined(__ppc64__)
212 #define STARPU_RMB() __asm__ __volatile__("sync" ::: "memory")
213 #define STARPU_WMB() __asm__ __volatile__("sync" ::: "memory")
215 #define STARPU_RMB() STARPU_SYNCHRONIZE()
216 #define STARPU_WMB() STARPU_SYNCHRONIZE()
236 strval = getenv(str);
243 val = strtol(strval, &check, 10);
245 fprintf(stderr,
"The %s environment variable must contain an integer\n", str);
260 static __starpu_inline
int starpu_get_env_number_default(
const char *str,
int defval)
268 static __starpu_inline
float starpu_get_env_float_default(
const char *str,
float defval)
272 strval = getenv(str);
279 val = strtof(strval, &check);
281 fprintf(stderr,
"The %s environment variable must contain a float\n", str);
308 #include <sys/types.h>
309 #include <sys/stat.h>
314 #if !defined(_MSC_VER) || defined(BUILDING_STARPU)
317 #if !defined(STARPU_HAVE_STRUCT_TIMESPEC) || defined(_MSC_VER)
319 #ifndef STARPU_TIMESPEC_DEFINED
320 #define STARPU_TIMESPEC_DEFINED 1
328 #if defined(__MINGW32__) || defined(__CYGWIN__)
329 #include <sys/time.h>
332 #include <sys/time.h>
double starpu_timing_now(void)
void starpu_execute_on_specific_workers(void(*func)(void *), void *arg, unsigned num_workers, unsigned *workers, const char *name)
int starpu_data_cpy(starpu_data_handle_t dst_handle, starpu_data_handle_t src_handle, int asynchronous, void(*callback_func)(void *), void *callback_arg)
void starpu_execute_on_each_worker_ex(void(*func)(void *), void *arg, uint32_t where, const char *name)
struct _starpu_data_state * starpu_data_handle_t
Definition: starpu_data.h:29
void starpu_execute_on_each_worker(void(*func)(void *), void *arg, uint32_t where)