cython

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cdef extern from "<omp.h>":
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    ctypedef struct omp_lock_t:
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        pass
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    ctypedef struct omp_nest_lock_t:
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        pass
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    ctypedef enum omp_sched_t:
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        omp_sched_static = 1,
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        omp_sched_dynamic = 2,
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        omp_sched_guided = 3,
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        omp_sched_auto = 4
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    extern void omp_set_num_threads(int) nogil
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    extern int omp_get_num_threads() nogil
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    extern int omp_get_max_threads() nogil
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    extern int omp_get_thread_num() nogil
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    extern int omp_get_num_procs() nogil
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    extern int omp_in_parallel() nogil
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    extern void omp_set_dynamic(int) nogil
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    extern int omp_get_dynamic() nogil
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    extern void omp_set_nested(int) nogil
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    extern int omp_get_nested() nogil
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    extern void omp_init_lock(omp_lock_t *) nogil
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    extern void omp_destroy_lock(omp_lock_t *) nogil
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    extern void omp_set_lock(omp_lock_t *) nogil
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    extern void omp_unset_lock(omp_lock_t *) nogil
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    extern int omp_test_lock(omp_lock_t *) nogil
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    extern void omp_init_nest_lock(omp_nest_lock_t *) nogil
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    extern void omp_destroy_nest_lock(omp_nest_lock_t *) nogil
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    extern void omp_set_nest_lock(omp_nest_lock_t *) nogil
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    extern void omp_unset_nest_lock(omp_nest_lock_t *) nogil
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    extern int omp_test_nest_lock(omp_nest_lock_t *) nogil
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    extern double omp_get_wtime() nogil
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    extern double omp_get_wtick() nogil
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    void omp_set_schedule(omp_sched_t, int) nogil
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    void omp_get_schedule(omp_sched_t *, int *) nogil
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    int omp_get_thread_limit() nogil
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    void omp_set_max_active_levels(int) nogil
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    int omp_get_max_active_levels() nogil
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    int omp_get_level() nogil
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    int omp_get_ancestor_thread_num(int) nogil
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    int omp_get_team_size(int) nogil
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    int omp_get_active_level() nogil
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