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# include <cppad/omp_alloc.hpp>
new
and delete
operators are thread safe,
but this means that a thread may have to wait for a lock on these operations.
Once memory is obtained for a thread, the omp_alloc
memory
allocator keeps that memory omp_available
for the thread so that
it can be re-used without waiting for a lock.
All the CppAD memory allocations use this utility.
The omp_free_available
function should be used to return memory
to the system (once it is no longer required by a thread).
cppad/omp_alloc.hpp
.
This file is included by
cppad/cppad.hpp
, but it can also be included separately with out
the rest of the CppAD
.
omp_max_num_threads | Set and Get Maximum Number of Threads for omp_alloc Allocator |
omp_in_parallel | Is The Current Execution in OpenMP Parallel Mode |
omp_get_thread_num | Get the Current OpenMP Thread Number |
omp_get_memory | Get At Least A Specified Amount of Memory |
omp_return_memory | Return Memory to omp_alloc |
omp_free_available | Free Memory Currently Available for Quick Use by a Thread |
omp_inuse | Amount of Memory a Thread is Currently Using |
omp_available | Amount of Memory Available for Quick Use by a Thread |
omp_create_array | Allocate Memory and Create A Raw Array |
omp_delete_array | Return A Raw Array to The Available Memory for a Thread |
omp_efficient | Check If A Memory Allocation is Efficient for Another Use |
old_max_num_threads | Set Maximum Number of Threads for omp_alloc Allocator |