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omp_max_num_threads¶
View page sourceSet and Get Maximum Number of Threads for omp_alloc Allocator¶
Deprecated 2011-08-31¶
Use the functions thread_alloc::parallel_setup and thread_alloc:num_threads instead.
Syntax¶
include <cppad/utility/omp_alloc.hpp>omp_alloc::set_max_num_threads ( number )omp_alloc::get_max_num_threads ()Purpose¶
By default there is only one thread and all execution is in sequential mode (not parallel ).
number¶
The argument and return value number has prototype
size_tnumber
and must be greater than zero.
set_max_num_threads¶
Informs omp_alloc of the maximum number of OpenMP threads.
get_max_num_threads¶
Returns the valued used in the previous call to set_max_num_threads .
If there was no such previous call, the value one is returned
(and only thread number zero can use omp_alloc ).
Restrictions¶
The function set_max_num_threads must be called before
the program enters parallel execution mode.
In addition, this function cannot be called while in parallel mode.