/* * This file is part of the StarPU Handbook. * Copyright (C) 2009--2011 Universit@'e de Bordeaux * Copyright (C) 2010, 2011, 2012, 2013 CNRS * Copyright (C) 2011, 2012 INRIA * See the file version.doxy for copying conditions. */ /*! \defgroup API_Parallel_Tasks Parallel Tasks \fn int starpu_combined_worker_get_size(void) \ingroup API_Parallel_Tasks Return the size of the current combined worker, i.e. the total number of cpus running the same task in the case of ::STARPU_SPMD parallel tasks, or the total number of threads that the task is allowed to start in the case of ::STARPU_FORKJOIN parallel tasks. \fn int starpu_combined_worker_get_rank(void) \ingroup API_Parallel_Tasks Return the rank of the current thread within the combined worker. Can only be used in ::STARPU_FORKJOIN parallel tasks, to know which part of the task to work on. \fn unsigned starpu_combined_worker_get_count(void) \ingroup API_Parallel_Tasks Return the number of different combined workers. \fn int starpu_combined_worker_get_id(void) \ingroup API_Parallel_Tasks Return the identifier of the current combined worker. \fn int starpu_combined_worker_assign_workerid(int nworkers, int workerid_array[]) \ingroup API_Parallel_Tasks Register a new combined worker and get its identifier \fn int starpu_combined_worker_get_description(int workerid, int *worker_size, int **combined_workerid) \ingroup API_Parallel_Tasks Get the description of a combined worker \fn int starpu_combined_worker_can_execute_task(unsigned workerid, struct starpu_task *task, unsigned nimpl) \ingroup API_Parallel_Tasks Variant of starpu_worker_can_execute_task() compatible with combined workers \fn void starpu_parallel_task_barrier_init(struct starpu_task *task, int workerid) \ingroup API_Parallel_Tasks Initialise the barrier for the parallel task, and dispatch the task between the different workers of the given combined worker. \fn void starpu_parallel_task_barrier_init_n(struct starpu_task *task, int worker_size) \ingroup API_Parallel_Tasks Initialise the barrier for the parallel task, to be pushed to \e worker_size workers (without having to explicit a given combined worker). */