PGI Fortran Reference manual - The Portland Group

OpenMP Directives for FortranRuntime Library Routines with ExamplesReturns the number of enclosing active parallel regions enclosing the task that contains the call. PGI currently supports only onelevel of active parallel regions, so the return value currently is 1.Fortraninteger function omp_get_active_level()omp_get_levelReturns the number of parallel regions enclosing the task that contains the call.Fortraninteger function omp_get_level()omp_get_max_threadsReturns the maximum value that can be returned by calls to omp_get_num_threads().If omp_set_num_threads() is used to change the number of processors, subsequent calls toomp_get_max_threads() return the new value. Further, this function returns the maximum value whether executing from aparallel or serial region of code.Fortranomp_get_num_procsinteger function omp_get_max_threads()Returns the number of processors that are available to the programFortraninteger function omp_get_num_procs()omp_get_stack_sizeReturns the value of the OpenMP internal control variable that specifies the size that is used to create a stack for a newly createdthread.This value may not be the size of the stack of the current thread.Fortranomp_set_stack_size!omp_get_stack_size interfacefunction omp_get_stack_size ()use omp_lib_kindsinteger ( kind=OMP_STACK_SIZE_KIND ):: omp_get_stack_sizeend function omp_get_stack_sizeend interfaceChanges the value of the OpenMP internal control variable that specifies the size to be used to create a stack for a newly createdthread.The integer argument specifies the stack size in kilobytes. The size of the stack of the current thread cannot be changed. In thePGI implementation, all OpenMP or auto-parallelization threads are created just prior to the first parallel region; therefore, onlycalls to omp_set_stack_size() that occur prior to the first region have an effect.Fortranomp_get_team_sizesubroutine omp_set_stack_size(integer(KIND=OMP_STACK_SIZE_KIND))Returns, for a given nested level of the current thread, the size of the thread team to which the ancestor belongs.Fortraninteger function omp_get_team_size (level)integer levelomp_in_finalReturns whether or not the call is within a final task.PGI Fortran Reference Guide 181