cython_parallel_vectors.pyx

# distutils: language = c++
from cython.parallel import parallel, prange
from libcpp.vector cimport vector
from libc.stdlib cimport malloc, free

cdef struct Data:
    int x
    int y


cdef Data* data_ptr
cdef vector[Data]* data_vector
cdef vector[Data]** vector_array
cdef int scale_num = 10
cdef int scale = 0


cdef Data* data_array = <Data*>malloc(sizeof(Data)*scale_num)
vector_array = <vector[Data]**>malloc(scale_num*sizeof(void*))

for scale in range(scale_num):
    vector_array[scale] = new vector[Data]()

with nogil:


    for scale in prange(scale_num):
        # Add elements to vector_array[scale] here
        data_array[scale].x = scale
        data_array[scale].y = scale*10

        vector_array[scale] = new vector[Data]()
        vector_array[scale].push_back(data_array[scale])
        data_array[scale].x *= 2
        data_array[scale].y *= 2
        vector_array[scale].push_back(data_array[scale])


cdef int a,b
a = 1
for scale in range(scale_num):
    data_vector = vector_array[scale]
    print("Vector ", data_vector.at(0).x, ", ", data_vector.at(0).y)
    print("Vector ", data_vector.at(1).x, ", ", data_vector.at(1).y)