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omp_create_array¶
View page sourceAllocate Memory and Create A Raw Array¶
Deprecated 2011-08-31¶
Use the function thread_alloc::create_array instead.
Syntax¶
#
include <cppad/utility/omp_alloc.hpp>
array = omp_alloc::create_array< Type >( size_min , size_out ) .
Purpose¶
Create a new raw array using omp_alloc a fast memory allocator that works well in a multi-threading OpenMP environment.
Type¶
The type of the elements of the array.
size_min¶
This argument has prototype
size_tsize_min
This is the minimum number of elements that there can be in the resulting array .
size_out¶
This argument has prototype
size_t&size_out
The input value of this argument does not matter. Upon return, it is the actual number of elements in array ( size_min <= size_out ).
array¶
The return value array has prototype
Type * array
It is array with size_out elements. The default constructor for Type is used to initialize the elements of array . Note that omp_delete_array should be used to destroy the array when it is no longer needed.
Delta¶
The amount of memory omp_inuse by the current thread, will increase delta where
sizeof( Type ) * ( size_out + 1) > delta >=sizeof( Type ) * size_out
The omp_available memory will decrease by delta , (and the allocation will be faster) if a previous allocation with size_min between its current value and size_out is available.