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- /* StarPU --- Runtime system for heterogeneous multicore architectures.
- *
- * Copyright (C) 2010-2017 CNRS
- * Copyright (C) 2009-2011,2014 Université de Bordeaux
- * Copyright (C) 2011-2012 Inria
- *
- * StarPU is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License as published by
- * the Free Software Foundation; either version 2.1 of the License, or (at
- * your option) any later version.
- *
- * StarPU is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * See the GNU Lesser General Public License in COPYING.LGPL for more details.
- */
- /*! \defgroup API_Implicit_Data_Dependencies Implicit Data Dependencies
- \brief In this section, we describe how StarPU makes it possible to
- insert implicit task dependencies in order to enforce sequential data
- consistency. When this data consistency is enabled on a specific data
- handle, any data access will appear as sequentially consistent from
- the application. For instance, if the application submits two tasks
- that access the same piece of data in read-only mode, and then a third
- task that access it in write mode, dependencies will be added between
- the two first tasks and the third one. Implicit data dependencies are
- also inserted in the case of data accesses from the application.
- \fn void starpu_data_set_default_sequential_consistency_flag(unsigned flag)
- \ingroup API_Implicit_Data_Dependencies
- Set the default sequential consistency flag. If a non-zero
- value is passed, a sequential data consistency will be enforced for
- all handles registered after this function call, otherwise it is
- disabled. By default, StarPU enables sequential data consistency. It
- is also possible to select the data consistency mode of a specific
- data handle with the function
- starpu_data_set_sequential_consistency_flag().
- \fn unsigned starpu_data_get_default_sequential_consistency_flag(void)
- \ingroup API_Implicit_Data_Dependencies
- Return the default sequential consistency flag
- \fn void starpu_data_set_sequential_consistency_flag(starpu_data_handle_t handle, unsigned flag)
- \ingroup API_Implicit_Data_Dependencies
- Set the data consistency mode associated to a data handle. The
- consistency mode set using this function has the priority over the
- default mode which can be set with
- starpu_data_set_default_sequential_consistency_flag().
- \fn unsigned starpu_data_get_sequential_consistency_flag(starpu_data_handle_t handle)
- \ingroup API_Implicit_Data_Dependencies
- Get the data consistency mode associated to the data handle \p handle
- */
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