.. _Which_Dynamic_Libraries_to_Use:

Which Dynamic Libraries to Use

The template scalable_allocator<T> requires the |full_name| scalable memory allocator library as described in Scalable Memory Allocator. It does not require the oneTBB general library, and can be used independently of the rest of oneTBB.

The templates tbb_allocator<T> and cache_aligned_allocator<T> use the scalable allocator library if it is present otherwise it reverts to using malloc and free. Thus, you can use these templates even in applications that choose to omit the scalable memory allocator library.

The rest of |full_name| can be used with or without the oneTBB scalable memory allocator library.

.. container:: tablenoborder

.. list-table:: :header-rows: 1

  * -     Template     
    -     Requirements     
    -     Notes     
  * -     \ ``scalable_allocator<T>``     
    -     |full_name| scalable    memory allocator library. See **Scalable Memory Allocator**.    
    -           
  * -     \ ``tbb_allocator<T>``           \ ``cache_aligned_allocator<T>``    
    -           
    -     Uses the scalable allocator library if it is present,    otherwise it reverts to using ``malloc`` and ``free``.