StarPU Handbook - StarPU FAQs
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Data Structures | |
struct | starpu_data_filter |
Basic API | |
void | starpu_data_partition (starpu_data_handle_t initial_handle, struct starpu_data_filter *f) |
void | starpu_data_unpartition (starpu_data_handle_t root_data, unsigned gathering_node) |
starpu_data_handle_t | starpu_data_get_child (starpu_data_handle_t handle, unsigned i) |
int | starpu_data_get_nb_children (starpu_data_handle_t handle) |
starpu_data_handle_t | starpu_data_get_sub_data (starpu_data_handle_t root_data, unsigned depth,...) |
starpu_data_handle_t | starpu_data_vget_sub_data (starpu_data_handle_t root_data, unsigned depth, va_list pa) |
void | starpu_data_map_filters (starpu_data_handle_t root_data, unsigned nfilters,...) |
void | starpu_data_vmap_filters (starpu_data_handle_t root_data, unsigned nfilters, va_list pa) |
void | starpu_data_map_filters_parray (starpu_data_handle_t root_handle, int nfilters, struct starpu_data_filter **filters) |
void | starpu_data_map_filters_array (starpu_data_handle_t root_handle, int nfilters, struct starpu_data_filter *filters) |
Predefined BCSR Filter Functions | |
Predefined partitioning functions for BCSR data. Examples on how to use them are shown in PartitioningData. | |
void | starpu_bcsr_filter_canonical_block (void *father_interface, void *child_interface, struct starpu_data_filter *f, unsigned id, unsigned nparts) |
unsigned | starpu_bcsr_filter_canonical_block_get_nchildren (struct starpu_data_filter *f, starpu_data_handle_t handle) |
struct starpu_data_interface_ops * | starpu_bcsr_filter_canonical_block_child_ops (struct starpu_data_filter *f, unsigned child) |
void | starpu_bcsr_filter_vertical_block (void *father_interface, void *child_interface, struct starpu_data_filter *f, unsigned id, unsigned nparts) |
Predefined CSR Filter Functions | |
Predefined partitioning functions for CSR data. Examples on how to use them are shown in PartitioningData. | |
void | starpu_csr_filter_vertical_block (void *father_interface, void *child_interface, struct starpu_data_filter *f, unsigned id, unsigned nparts) |
Predefined Matrix Filter Functions | |
Predefined partitioning functions for matrix data. Examples on how to use them are shown in PartitioningData. Note: this is using the C element order which is row-major, i.e. elements with consecutive x coordinates are consecutive in memory. | |
void | starpu_matrix_filter_block (void *father_interface, void *child_interface, struct starpu_data_filter *f, unsigned id, unsigned nparts) |
void | starpu_matrix_filter_block_shadow (void *father_interface, void *child_interface, struct starpu_data_filter *f, unsigned id, unsigned nparts) |
void | starpu_matrix_filter_vertical_block (void *father_interface, void *child_interface, struct starpu_data_filter *f, unsigned id, unsigned nparts) |
void | starpu_matrix_filter_vertical_block_shadow (void *father_interface, void *child_interface, struct starpu_data_filter *f, unsigned id, unsigned nparts) |
void | starpu_matrix_filter_pick_vector_y (void *father_interface, void *child_interface, struct starpu_data_filter *f, unsigned id, unsigned nparts) |
struct starpu_data_interface_ops * | starpu_matrix_filter_pick_vector_child_ops (struct starpu_data_filter *f, unsigned child) |
void | starpu_matrix_filter_pick_variable (void *father_interface, void *child_interface, struct starpu_data_filter *f, unsigned id, unsigned nparts) |
struct starpu_data_interface_ops * | starpu_matrix_filter_pick_variable_child_ops (struct starpu_data_filter *f, unsigned child) |
Predefined Vector Filter Functions | |
Predefined partitioning functions for vector data. Examples on how to use them are shown in PartitioningData. | |
void | starpu_vector_filter_block (void *father_interface, void *child_interface, struct starpu_data_filter *f, unsigned id, unsigned nparts) |
void | starpu_vector_filter_block_shadow (void *father_interface, void *child_interface, struct starpu_data_filter *f, unsigned id, unsigned nparts) |
void | starpu_vector_filter_list_long (void *father_interface, void *child_interface, struct starpu_data_filter *f, unsigned id, unsigned nparts) |
void | starpu_vector_filter_list (void *father_interface, void *child_interface, struct starpu_data_filter *f, unsigned id, unsigned nparts) |
void | starpu_vector_filter_divide_in_2 (void *father_interface, void *child_interface, struct starpu_data_filter *f, unsigned id, unsigned nparts) |
void | starpu_vector_filter_pick_variable (void *father_interface, void *child_interface, struct starpu_data_filter *f, unsigned id, unsigned nparts) |
struct starpu_data_interface_ops * | starpu_vector_filter_pick_variable_child_ops (struct starpu_data_filter *f, unsigned child) |
Predefined Block Filter Functions | |
Predefined partitioning functions for block data. Examples on how to use them are shown in PartitioningData. An example is available in | |
void | starpu_block_filter_block (void *father_interface, void *child_interface, struct starpu_data_filter *f, unsigned id, unsigned nparts) |
void | starpu_block_filter_block_shadow (void *father_interface, void *child_interface, struct starpu_data_filter *f, unsigned id, unsigned nparts) |
void | starpu_block_filter_vertical_block (void *father_interface, void *child_interface, struct starpu_data_filter *f, unsigned id, unsigned nparts) |
void | starpu_block_filter_vertical_block_shadow (void *father_interface, void *child_interface, struct starpu_data_filter *f, unsigned id, unsigned nparts) |
void | starpu_block_filter_depth_block (void *father_interface, void *child_interface, struct starpu_data_filter *f, unsigned id, unsigned nparts) |
void | starpu_block_filter_depth_block_shadow (void *father_interface, void *child_interface, struct starpu_data_filter *f, unsigned id, unsigned nparts) |
void | starpu_block_filter_pick_matrix_z (void *father_interface, void *child_interface, struct starpu_data_filter *f, unsigned id, unsigned nparts) |
void | starpu_block_filter_pick_matrix_y (void *father_interface, void *child_interface, struct starpu_data_filter *f, unsigned id, unsigned nparts) |
struct starpu_data_interface_ops * | starpu_block_filter_pick_matrix_child_ops (struct starpu_data_filter *f, unsigned child) |
void | starpu_block_filter_pick_variable (void *father_interface, void *child_interface, struct starpu_data_filter *f, unsigned id, unsigned nparts) |
struct starpu_data_interface_ops * | starpu_block_filter_pick_variable_child_ops (struct starpu_data_filter *f, unsigned child) |
Predefined Tensor Filter Functions | |
Predefined partitioning functions for tensor data. | |
void | starpu_tensor_filter_block (void *father_interface, void *child_interface, struct starpu_data_filter *f, unsigned id, unsigned nparts) |
void | starpu_tensor_filter_block_shadow (void *father_interface, void *child_interface, struct starpu_data_filter *f, unsigned id, unsigned nparts) |
void | starpu_tensor_filter_vertical_block (void *father_interface, void *child_interface, struct starpu_data_filter *f, unsigned id, unsigned nparts) |
void | starpu_tensor_filter_vertical_block_shadow (void *father_interface, void *child_interface, struct starpu_data_filter *f, unsigned id, unsigned nparts) |
void | starpu_tensor_filter_depth_block (void *father_interface, void *child_interface, struct starpu_data_filter *f, unsigned id, unsigned nparts) |
void | starpu_tensor_filter_depth_block_shadow (void *father_interface, void *child_interface, struct starpu_data_filter *f, unsigned id, unsigned nparts) |
void | starpu_tensor_filter_time_block (void *father_interface, void *child_interface, struct starpu_data_filter *f, unsigned id, unsigned nparts) |
void | starpu_tensor_filter_time_block_shadow (void *father_interface, void *child_interface, struct starpu_data_filter *f, unsigned id, unsigned nparts) |
void | starpu_tensor_filter_pick_block_t (void *father_interface, void *child_interface, struct starpu_data_filter *f, unsigned id, unsigned nparts) |
void | starpu_tensor_filter_pick_block_z (void *father_interface, void *child_interface, struct starpu_data_filter *f, unsigned id, unsigned nparts) |
void | starpu_tensor_filter_pick_block_y (void *father_interface, void *child_interface, struct starpu_data_filter *f, unsigned id, unsigned nparts) |
struct starpu_data_interface_ops * | starpu_tensor_filter_pick_block_child_ops (struct starpu_data_filter *f, unsigned child) |
void | starpu_tensor_filter_pick_variable (void *father_interface, void *child_interface, struct starpu_data_filter *f, unsigned id, unsigned nparts) |
struct starpu_data_interface_ops * | starpu_tensor_filter_pick_variable_child_ops (struct starpu_data_filter *f, unsigned child) |
Predefined Ndim Filter Functions | |
Predefined partitioning functions for ndim array data. | |
void | starpu_ndim_filter_block (void *father_interface, void *child_interface, struct starpu_data_filter *f, unsigned id, unsigned nparts) |
void | starpu_ndim_filter_block_shadow (void *father_interface, void *child_interface, struct starpu_data_filter *f, unsigned id, unsigned nparts) |
void | starpu_ndim_filter_to_tensor (void *father_interface, void *child_interface, struct starpu_data_filter *f, unsigned id, unsigned nparts) |
void | starpu_ndim_filter_to_block (void *father_interface, void *child_interface, struct starpu_data_filter *f, unsigned id, unsigned nparts) |
void | starpu_ndim_filter_to_matrix (void *father_interface, void *child_interface, struct starpu_data_filter *f, unsigned id, unsigned nparts) |
void | starpu_ndim_filter_to_vector (void *father_interface, void *child_interface, struct starpu_data_filter *f, unsigned id, unsigned nparts) |
void | starpu_ndim_filter_to_variable (void *father_interface, void *child_interface, struct starpu_data_filter *f, unsigned id, unsigned nparts) |
void | starpu_ndim_filter_pick_ndim (void *father_interface, void *child_interface, struct starpu_data_filter *f, unsigned id, unsigned nparts) |
void | starpu_ndim_filter_5d_pick_tensor (void *father_interface, void *child_interface, struct starpu_data_filter *f, unsigned id, unsigned nparts) |
void | starpu_ndim_filter_4d_pick_block (void *father_interface, void *child_interface, struct starpu_data_filter *f, unsigned id, unsigned nparts) |
void | starpu_ndim_filter_3d_pick_matrix (void *father_interface, void *child_interface, struct starpu_data_filter *f, unsigned id, unsigned nparts) |
void | starpu_ndim_filter_2d_pick_vector (void *father_interface, void *child_interface, struct starpu_data_filter *f, unsigned id, unsigned nparts) |
void | starpu_ndim_filter_1d_pick_variable (void *father_interface, void *child_interface, struct starpu_data_filter *f, unsigned id, unsigned nparts) |
void | starpu_ndim_filter_pick_variable (void *father_interface, void *child_interface, struct starpu_data_filter *f, unsigned id, unsigned nparts) |
struct starpu_data_interface_ops * | starpu_ndim_filter_pick_tensor_child_ops (struct starpu_data_filter *f, unsigned child) |
struct starpu_data_interface_ops * | starpu_ndim_filter_pick_block_child_ops (struct starpu_data_filter *f, unsigned child) |
struct starpu_data_interface_ops * | starpu_ndim_filter_pick_matrix_child_ops (struct starpu_data_filter *f, unsigned child) |
struct starpu_data_interface_ops * | starpu_ndim_filter_pick_vector_child_ops (struct starpu_data_filter *f, unsigned child) |
struct starpu_data_interface_ops * | starpu_ndim_filter_pick_variable_child_ops (struct starpu_data_filter *f, unsigned child) |
struct starpu_data_interface_ops * | starpu_ndim_filter_to_tensor_child_ops (struct starpu_data_filter *f, unsigned child) |
struct starpu_data_interface_ops * | starpu_ndim_filter_to_block_child_ops (struct starpu_data_filter *f, unsigned child) |
struct starpu_data_interface_ops * | starpu_ndim_filter_to_matrix_child_ops (struct starpu_data_filter *f, unsigned child) |
struct starpu_data_interface_ops * | starpu_ndim_filter_to_vector_child_ops (struct starpu_data_filter *f, unsigned child) |
struct starpu_data_interface_ops * | starpu_ndim_filter_to_variable_child_ops (struct starpu_data_filter *f, unsigned child) |
void | starpu_filter_nparts_compute_chunk_size_and_offset (unsigned n, unsigned nparts, size_t elemsize, unsigned id, unsigned blocksize, unsigned *chunk_size, size_t *offset) |
struct starpu_data_filter |
Describe a data partitioning operation, to be given to starpu_data_partition(). See DefiningANewDataFilter for more details.
Data Fields | |
void(* | filter_func )(void *father_interface, void *child_interface, struct starpu_data_filter *, unsigned id, unsigned nparts) |
unsigned | nchildren |
unsigned(* | get_nchildren )(struct starpu_data_filter *, starpu_data_handle_t initial_handle) |
struct starpu_data_interface_ops *(* | get_child_ops )(struct starpu_data_filter *, unsigned id) |
unsigned | filter_arg |
void * | filter_arg_ptr |
void(* starpu_data_filter::filter_func) (void *father_interface, void *child_interface, struct starpu_data_filter *, unsigned id, unsigned nparts) |
Fill the child_interface
structure with interface information for the i
-th child of the parent father_interface
(among nparts
). The filter
structure is provided, allowing to inspect the starpu_data_filter::filter_arg and starpu_data_filter::filter_arg_ptr parameters. The details of what needs to be filled in child_interface
vary according to the data interface, but generally speaking:
id
is usually just copied over from the father, when the sub data has the same structure as the father, e.g. a subvector is a vector, a submatrix is a matrix, etc. This is however not the case for instance when dividing a BCSR matrix into its dense blocks, which then are matrices. nx
, ny
and alike are usually divided by the number of subdata, depending how the subdivision is done (e.g. nx division vs ny division for vertical matrix division vs horizontal matrix division). ld
for matrix interfaces are usually just copied over: the leading dimension (ld) usually does not change. elemsize
is usually just copied over. ptr
, the pointer to the data, has to be computed according to i
and the father's ptr
, so as to point to the start of the sub data. This should however be done only if the father has ptr
different from NULL: in the OpenCL case notably, the dev_handle
and offset
fields are used instead. dev_handle
should be just copied over from the parent. offset
has to be computed according to i
and the father's offset
, so as to provide the offset of the start of the sub data. This is notably used for the OpenCL case. unsigned starpu_data_filter::nchildren |
Number of parts to partition the data into.
unsigned(* starpu_data_filter::get_nchildren) (struct starpu_data_filter *, starpu_data_handle_t initial_handle) |
Return the number of children. This can be used instead of starpu_data_filter::nchildren when the number of children depends on the actual data (e.g. the number of blocks in a sparse matrix).
struct starpu_data_interface_ops *(* starpu_data_filter::get_child_ops) (struct starpu_data_filter *, unsigned id) |
When children use different data interface, return which interface is used by child number id
.
unsigned starpu_data_filter::filter_arg |
Additional parameter for the filter function
void* starpu_data_filter::filter_arg_ptr |
Additional pointer parameter for the filter function, such as the sizes of the different parts.
void starpu_data_partition | ( | starpu_data_handle_t | initial_handle, |
struct starpu_data_filter * | f | ||
) |
Request the partitioning of initial_handle
into several subdata according to the filter f
.
Here an example of how to use the function.
See PartitioningData for more details.
void starpu_data_unpartition | ( | starpu_data_handle_t | root_data, |
unsigned | gathering_node | ||
) |
Unapply the filter which has been applied to root_data
, thus unpartitioning the data. The pieces of data are collected back into one big piece in the gathering_node
(usually STARPU_MAIN_RAM). Tasks working on the partitioned data will be waited for by starpu_data_unpartition().
Here an example of how to use the function.
See PartitioningData for more details.
starpu_data_handle_t starpu_data_get_child | ( | starpu_data_handle_t | handle, |
unsigned | i | ||
) |
Return the i
-th child of the given handle
, which must have been partitionned beforehand. See PartitioningData for more details.
int starpu_data_get_nb_children | ( | starpu_data_handle_t | handle | ) |
Return the number of children handle
has been partitioned into. See PartitioningData for more details.
starpu_data_handle_t starpu_data_get_sub_data | ( | starpu_data_handle_t | root_data, |
unsigned | depth, | ||
... | |||
) |
After partitioning a StarPU data by applying a filter, starpu_data_get_sub_data() can be used to get handles for each of the data portions. root_data
is the parent data that was partitioned. depth
is the number of filters to traverse (in case several filters have been applied, to e.g. partition in row blocks, and then in column blocks), and the subsequent parameters are the indexes. The function returns a handle to the subdata.
Here an example of how to use the function.
See PartitioningData for more details.
starpu_data_handle_t starpu_data_vget_sub_data | ( | starpu_data_handle_t | root_data, |
unsigned | depth, | ||
va_list | pa | ||
) |
Similar to starpu_data_get_sub_data() but use a va_list
for the parameter list. See PartitioningData for more details.
void starpu_data_map_filters | ( | starpu_data_handle_t | root_data, |
unsigned | nfilters, | ||
... | |||
) |
Apply nfilters
filters to the handle designated by root_handle
recursively. nfilters
pointers to variables of the type starpu_data_filter should be given. See PartitioningData for more details.
void starpu_data_vmap_filters | ( | starpu_data_handle_t | root_data, |
unsigned | nfilters, | ||
va_list | pa | ||
) |
Apply nfilters
filters to the handle designated by root_handle
recursively. Use a va_list
of pointers to variables of the type starpu_data_filter. See PartitioningData for more details.
void starpu_data_map_filters_parray | ( | starpu_data_handle_t | root_handle, |
int | nfilters, | ||
struct starpu_data_filter ** | filters | ||
) |
Apply nfilters
filters to the handle designated by root_handle
recursively. The pointer of the filter list filters
of the type starpu_data_filter should be given. See PartitioningData for more details.
void starpu_data_map_filters_array | ( | starpu_data_handle_t | root_handle, |
int | nfilters, | ||
struct starpu_data_filter * | filters | ||
) |
Apply nfilters
filters to the handle designated by root_handle
recursively. The list of filter filters
of the type starpu_data_filter should be given. See PartitioningData for more details.
void starpu_data_partition_plan | ( | starpu_data_handle_t | initial_handle, |
struct starpu_data_filter * | f, | ||
starpu_data_handle_t * | children | ||
) |
Plan to partition initial_handle
into several subdata according to the filter f
. The handles are returned into the children
array, which has to be the same size as the number of parts described in f
. These handles are not immediately usable, starpu_data_partition_submit() has to be called to submit the actual partitioning.
Here is an example of how to use the function:
See AsynchronousPartitioning for more details.
void starpu_data_partition_submit | ( | starpu_data_handle_t | initial_handle, |
unsigned | nparts, | ||
starpu_data_handle_t * | children | ||
) |
Submit the actual partitioning of initial_handle
into the nparts
children
handles. This call is asynchronous, it only submits that the partitioning should be done, so that the children
handles can now be used to submit tasks, and initial_handle
can not be used to submit tasks any more (to guarantee coherency). For instance,
See AsynchronousPartitioning for more details.
void starpu_data_partition_readonly_submit | ( | starpu_data_handle_t | initial_handle, |
unsigned | nparts, | ||
starpu_data_handle_t * | children | ||
) |
Similar to starpu_data_partition_submit(), but do not invalidate initial_handle
. This allows to continue using it, but the application has to be careful not to write to initial_handle
or children
handles, only read from them, since the coherency is otherwise not guaranteed. This thus allows to submit various tasks which concurrently read from various partitions of the data.
When the application wants to write to initial_handle
again, it should call starpu_data_unpartition_submit(), which will properly add dependencies between the reads on the children
and the writes to be submitted.
If instead the application wants to write to children
handles, it should call starpu_data_partition_readwrite_upgrade_submit(), which will correctly add dependencies between the reads on the initial_handle
and the writes to be submitted. See AsynchronousPartitioning for more details.
void starpu_data_partition_readonly_submit_sequential_consistency | ( | starpu_data_handle_t | initial_handle, |
unsigned | nparts, | ||
starpu_data_handle_t * | children, | ||
int | sequential_consistency | ||
) |
Similar to starpu_data_partition_readonly_submit(), but allow to specify the coherency to be used for the main data initial_handle
. See AsynchronousPartitioning for more details.
void starpu_data_partition_readwrite_upgrade_submit | ( | starpu_data_handle_t | initial_handle, |
unsigned | nparts, | ||
starpu_data_handle_t * | children | ||
) |
Assume that a partitioning of initial_handle
has already been submited in readonly mode through starpu_data_partition_readonly_submit(), and will upgrade that partitioning into read-write mode for the children
, by invalidating initial_handle
, and adding the necessary dependencies. See AsynchronousPartitioning for more details.
void starpu_data_unpartition_submit | ( | starpu_data_handle_t | initial_handle, |
unsigned | nparts, | ||
starpu_data_handle_t * | children, | ||
int | gathering_node | ||
) |
Assuming that initial_handle
is partitioned into children
, submit an unpartitionning of initial_handle
, i.e. submit a gathering of the pieces on the requested gathering_node
memory node, and submit an invalidation of the children. See AsynchronousPartitioning for more details.
void starpu_data_unpartition_readonly_submit | ( | starpu_data_handle_t | initial_handle, |
unsigned | nparts, | ||
starpu_data_handle_t * | children, | ||
int | gathering_node | ||
) |
Similar to starpu_data_partition_submit(), but do not invalidate initial_handle
. This allows to continue using it, but the application has to be careful not to write to initial_handle
or children
handles, only read from them, since the coherency is otherwise not guaranteed. This thus allows to submit various tasks which concurrently read from various partitions of the data. See AsynchronousPartitioning for more details.
void starpu_data_partition_clean | ( | starpu_data_handle_t | root_data, |
unsigned | nparts, | ||
starpu_data_handle_t * | children | ||
) |
Clear the partition planning established between root_data
and children
with starpu_data_partition_plan(). This will notably submit an unregister all the children
, which can thus not be used any more afterwards. See AsynchronousPartitioning for more details.
void starpu_data_partition_clean_node | ( | starpu_data_handle_t | root_data, |
unsigned | nparts, | ||
starpu_data_handle_t * | children, | ||
int | gather_node | ||
) |
Similar to starpu_data_partition_clean() but the root data will be gathered on the given node. See AsynchronousPartitioning for more details.
void starpu_data_unpartition_submit_sequential_consistency_cb | ( | starpu_data_handle_t | initial_handle, |
unsigned | nparts, | ||
starpu_data_handle_t * | children, | ||
int | gather_node, | ||
int | sequential_consistency, | ||
void(*)(void *) | callback_func, | ||
void * | callback_arg | ||
) |
Similar to starpu_data_unpartition_submit_sequential_consistency() but allow to specify a callback function for the unpartitiong task. See AsynchronousPartitioning for more details.
void starpu_data_partition_submit_sequential_consistency | ( | starpu_data_handle_t | initial_handle, |
unsigned | nparts, | ||
starpu_data_handle_t * | children, | ||
int | sequential_consistency | ||
) |
Similar to starpu_data_partition_submit() but also allow to specify the coherency to be used for the main data initial_handle
through the parameter sequential_consistency
. See AsynchronousPartitioning for more details.
void starpu_data_unpartition_submit_sequential_consistency | ( | starpu_data_handle_t | initial_handle, |
unsigned | nparts, | ||
starpu_data_handle_t * | children, | ||
int | gathering_node, | ||
int | sequential_consistency | ||
) |
Similar to starpu_data_unpartition_submit() but also allow to specify the coherency to be used for the main data initial_handle
through the parameter sequential_consistency
. See AsynchronousPartitioning for more details.
void starpu_bcsr_filter_canonical_block | ( | void * | father_interface, |
void * | child_interface, | ||
struct starpu_data_filter * | f, | ||
unsigned | id, | ||
unsigned | nparts | ||
) |
Partition a block-sparse matrix into dense matrices. starpu_data_filter::get_child_ops needs to be set to starpu_bcsr_filter_canonical_block_child_ops() and starpu_data_filter::get_nchildren set to starpu_bcsr_filter_canonical_block_get_nchildren().
See BCSRDataInterface for more details.
unsigned starpu_bcsr_filter_canonical_block_get_nchildren | ( | struct starpu_data_filter * | f, |
starpu_data_handle_t | handle | ||
) |
Return the number of children obtained with starpu_bcsr_filter_canonical_block(). See BCSRDataInterface for more details.
struct starpu_data_interface_ops * starpu_bcsr_filter_canonical_block_child_ops | ( | struct starpu_data_filter * | f, |
unsigned | child | ||
) |
Return the child_ops of the partition obtained with starpu_bcsr_filter_canonical_block(). See BCSRDataInterface for more details.
void starpu_bcsr_filter_vertical_block | ( | void * | father_interface, |
void * | child_interface, | ||
struct starpu_data_filter * | f, | ||
unsigned | id, | ||
unsigned | nparts | ||
) |
Partition a block-sparse matrix into block-sparse matrices.
The split is done along the leading dimension, i.e. along adjacent nnz blocks.
See BCSRDataInterface for more details.
void starpu_csr_filter_vertical_block | ( | void * | father_interface, |
void * | child_interface, | ||
struct starpu_data_filter * | f, | ||
unsigned | id, | ||
unsigned | nparts | ||
) |
Partition a block-sparse matrix into vertical block-sparse matrices.
See CSRDataInterface for more details.
void starpu_matrix_filter_block | ( | void * | father_interface, |
void * | child_interface, | ||
struct starpu_data_filter * | f, | ||
unsigned | id, | ||
unsigned | nparts | ||
) |
Partition a dense Matrix along the x dimension, thus getting (x/nparts
,y) matrices. If nparts
does not divide x, the last submatrix contains the remainder.
See MatrixDataInterface for more details.
void starpu_matrix_filter_block_shadow | ( | void * | father_interface, |
void * | child_interface, | ||
struct starpu_data_filter * | f, | ||
unsigned | id, | ||
unsigned | nparts | ||
) |
Partition a dense Matrix along the x dimension, with a shadow border filter_arg_ptr
, thus getting ((x-2*shadow)/nparts
+2*shadow,y) matrices. If nparts
does not divide x-2*shadow, the last submatrix contains the remainder.
IMPORTANT: This can only be used for read-only access, as no coherency is enforced for the shadowed parts. A usage example is available in examples/filters/shadow2d.c
See MatrixDataInterface for more details.
void starpu_matrix_filter_vertical_block | ( | void * | father_interface, |
void * | child_interface, | ||
struct starpu_data_filter * | f, | ||
unsigned | id, | ||
unsigned | nparts | ||
) |
Partition a dense Matrix along the y dimension, thus getting (x,y/nparts
) matrices. If nparts
does not divide y, the last submatrix contains the remainder.
See MatrixDataInterface for more details.
void starpu_matrix_filter_vertical_block_shadow | ( | void * | father_interface, |
void * | child_interface, | ||
struct starpu_data_filter * | f, | ||
unsigned | id, | ||
unsigned | nparts | ||
) |
Partition a dense Matrix along the y dimension, with a shadow border filter_arg_ptr
, thus getting (x,(y-2*shadow)/nparts
+2*shadow) matrices. If nparts
does not divide y-2*shadow, the last submatrix contains the remainder.
IMPORTANT: This can only be used for read-only access, as no coherency is enforced for the shadowed parts. A usage example is available in examples/filters/shadow2d.c
See MatrixDataInterface for more details.
void starpu_matrix_filter_pick_vector_y | ( | void * | father_interface, |
void * | child_interface, | ||
struct starpu_data_filter * | f, | ||
unsigned | id, | ||
unsigned | nparts | ||
) |
Pick nparts
contiguous vectors from a matrix along the Y dimension. The starting position on Y-axis is set in starpu_data_filter::filter_arg_ptr
.
starpu_data_filter::get_child_ops
needs to be set to starpu_matrix_filter_pick_vector_child_ops(). A usage example is available in examples/filters/fmatrix_pick_vector.c
See MatrixDataInterface for more details.
struct starpu_data_interface_ops * starpu_matrix_filter_pick_vector_child_ops | ( | struct starpu_data_filter * | f, |
unsigned | child | ||
) |
Return the child_ops of the partition obtained with starpu_matrix_filter_pick_vector_y(). See MatrixDataInterface for more details.
void starpu_matrix_filter_pick_variable | ( | void * | father_interface, |
void * | child_interface, | ||
struct starpu_data_filter * | f, | ||
unsigned | id, | ||
unsigned | nparts | ||
) |
Pick nparts
contiguous variables from a matrix. The starting position is set in starpu_data_filter::filter_arg_ptr
.
starpu_data_filter::get_child_ops
needs to be set to starpu_matrix_filter_pick_variable_child_ops(). A usage example is available in examples/filters/fmatrix_pick_variable.c
See MatrixDataInterface for more details.
struct starpu_data_interface_ops * starpu_matrix_filter_pick_variable_child_ops | ( | struct starpu_data_filter * | f, |
unsigned | child | ||
) |
Return the child_ops of the partition obtained with starpu_matrix_filter_pick_variable(). See MatrixDataInterface for more details.
void starpu_vector_filter_block | ( | void * | father_interface, |
void * | child_interface, | ||
struct starpu_data_filter * | f, | ||
unsigned | id, | ||
unsigned | nparts | ||
) |
Return in child_interface
the id
th element of the vector represented by father_interface
once partitioned in nparts
chunks of equal size.
See VectorDataInterface for more details.
void starpu_vector_filter_block_shadow | ( | void * | father_interface, |
void * | child_interface, | ||
struct starpu_data_filter * | f, | ||
unsigned | id, | ||
unsigned | nparts | ||
) |
Return in child_interface
the id
th element of the vector represented by father_interface
once partitioned in nparts
chunks of equal size with a shadow border filter_arg_ptr
, thus getting a vector of size (n-2*shadow)/nparts+2*shadow
. The filter_arg_ptr
field of f
must be the shadow size casted into void*
.
IMPORTANT: This can only be used for read-only access, as no coherency is enforced for the shadowed parts. An usage example is available in examples/filters/shadow.c
See VectorDataInterface for more details.
void starpu_vector_filter_list_long | ( | void * | father_interface, |
void * | child_interface, | ||
struct starpu_data_filter * | f, | ||
unsigned | id, | ||
unsigned | nparts | ||
) |
Return in child_interface
the id
th element of the vector represented by father_interface
once partitioned into nparts
chunks according to the filter_arg_ptr
field of f
. The filter_arg_ptr
field must point to an array of nparts
long elements, each of which specifies the number of elements in each chunk of the partition.
See VectorDataInterface for more details.
void starpu_vector_filter_list | ( | void * | father_interface, |
void * | child_interface, | ||
struct starpu_data_filter * | f, | ||
unsigned | id, | ||
unsigned | nparts | ||
) |
Return in child_interface
the id
th element of the vector represented by father_interface
once partitioned into nparts
chunks according to the filter_arg_ptr
field of f
. The filter_arg_ptr
field must point to an array of nparts
uint32_t elements, each of which specifies the number of elements in each chunk of the partition.
See VectorDataInterface for more details.
void starpu_vector_filter_divide_in_2 | ( | void * | father_interface, |
void * | child_interface, | ||
struct starpu_data_filter * | f, | ||
unsigned | id, | ||
unsigned | nparts | ||
) |
Return in child_interface
the id
th element of the vector represented by father_interface
once partitioned in 2
chunks of equal size, ignoring nparts. Thus, id
must be 0
or 1
.
See VectorDataInterface for more details.
void starpu_vector_filter_pick_variable | ( | void * | father_interface, |
void * | child_interface, | ||
struct starpu_data_filter * | f, | ||
unsigned | id, | ||
unsigned | nparts | ||
) |
Pick nparts
contiguous variables from a vector. The starting position is set in starpu_data_filter::filter_arg_ptr
.
starpu_data_filter::get_child_ops
needs to be set to starpu_vector_filter_pick_variable_child_ops(). A usage example is available in examples/filters/fvector_pick_variable.c
See VectorDataInterface for more details.
struct starpu_data_interface_ops * starpu_vector_filter_pick_variable_child_ops | ( | struct starpu_data_filter * | f, |
unsigned | child | ||
) |
Return the child_ops of the partition obtained with starpu_vector_filter_pick_variable(). See VectorDataInterface for more details.
void starpu_block_filter_block | ( | void * | father_interface, |
void * | child_interface, | ||
struct starpu_data_filter * | f, | ||
unsigned | id, | ||
unsigned | nparts | ||
) |
Partition a block along the X dimension, thus getting (x/nparts
,y,z) 3D matrices. If nparts
does not divide x, the last submatrix contains the remainder.
See BlockDataInterface for more details.
void starpu_block_filter_block_shadow | ( | void * | father_interface, |
void * | child_interface, | ||
struct starpu_data_filter * | f, | ||
unsigned | id, | ||
unsigned | nparts | ||
) |
Partition a block along the X dimension, with a shadow border filter_arg_ptr
, thus getting ((x-2*shadow)/nparts
+2*shadow,y,z) blocks. If nparts
does not divide x, the last submatrix contains the remainder.
IMPORTANT: This can only be used for read-only access, as no coherency is enforced for the shadowed parts.
See BlockDataInterface for more details.
void starpu_block_filter_vertical_block | ( | void * | father_interface, |
void * | child_interface, | ||
struct starpu_data_filter * | f, | ||
unsigned | id, | ||
unsigned | nparts | ||
) |
Partition a block along the Y dimension, thus getting (x,y/nparts
,z) blocks. If nparts
does not divide y, the last submatrix contains the remainder.
See BlockDataInterface for more details.
void starpu_block_filter_vertical_block_shadow | ( | void * | father_interface, |
void * | child_interface, | ||
struct starpu_data_filter * | f, | ||
unsigned | id, | ||
unsigned | nparts | ||
) |
Partition a block along the Y dimension, with a shadow border filter_arg_ptr
, thus getting (x,(y-2*shadow)/nparts
+2*shadow,z) 3D matrices. If nparts
does not divide y, the last submatrix contains the remainder.
IMPORTANT: This can only be used for read-only access, as no coherency is enforced for the shadowed parts.
See BlockDataInterface for more details.
void starpu_block_filter_depth_block | ( | void * | father_interface, |
void * | child_interface, | ||
struct starpu_data_filter * | f, | ||
unsigned | id, | ||
unsigned | nparts | ||
) |
Partition a block along the Z dimension, thus getting (x,y,z/nparts
) blocks. If nparts
does not divide z, the last submatrix contains the remainder.
See BlockDataInterface for more details.
void starpu_block_filter_depth_block_shadow | ( | void * | father_interface, |
void * | child_interface, | ||
struct starpu_data_filter * | f, | ||
unsigned | id, | ||
unsigned | nparts | ||
) |
Partition a block along the Z dimension, with a shadow border filter_arg_ptr
, thus getting (x,y,(z-2*shadow)/nparts
+2*shadow) blocks. If nparts
does not divide z, the last submatrix contains the remainder.
IMPORTANT: This can only be used for read-only access, as no coherency is enforced for the shadowed parts.
See BlockDataInterface for more details.
void starpu_block_filter_pick_matrix_z | ( | void * | father_interface, |
void * | child_interface, | ||
struct starpu_data_filter * | f, | ||
unsigned | id, | ||
unsigned | nparts | ||
) |
Pick nparts
contiguous matrices from a block along the Z dimension. The starting position on Z-axis is set in starpu_data_filter::filter_arg_ptr
.
starpu_data_filter::get_child_ops
needs to be set to starpu_block_filter_pick_matrix_child_ops(). A usage example is available in examples/filters/fblock_pick_matrix.c
See BlockDataInterface for more details.
void starpu_block_filter_pick_matrix_y | ( | void * | father_interface, |
void * | child_interface, | ||
struct starpu_data_filter * | f, | ||
unsigned | id, | ||
unsigned | nparts | ||
) |
Pick nparts
contiguous matrices from a block along the Y dimension. The starting position on Y-axis is set in starpu_data_filter::filter_arg_ptr
.
starpu_data_filter::get_child_ops
needs to be set to starpu_block_filter_pick_matrix_child_ops(). A usage example is available in examples/filters/fblock_pick_matrix.c
See BlockDataInterface for more details.
struct starpu_data_interface_ops * starpu_block_filter_pick_matrix_child_ops | ( | struct starpu_data_filter * | f, |
unsigned | child | ||
) |
Return the child_ops of the partition obtained with starpu_block_filter_pick_matrix_z() and starpu_block_filter_pick_matrix_y(). See BlockDataInterface for more details.
void starpu_block_filter_pick_variable | ( | void * | father_interface, |
void * | child_interface, | ||
struct starpu_data_filter * | f, | ||
unsigned | id, | ||
unsigned | nparts | ||
) |
Pick nparts
contiguous variables from a block. The starting position is set in starpu_data_filter::filter_arg_ptr
.
starpu_data_filter::get_child_ops
needs to be set to starpu_block_filter_pick_variable_child_ops(). A usage example is available in examples/filters/fblock_pick_variable.c
See BlockDataInterface for more details.
struct starpu_data_interface_ops * starpu_block_filter_pick_variable_child_ops | ( | struct starpu_data_filter * | f, |
unsigned | child | ||
) |
Return the child_ops of the partition obtained with starpu_block_filter_pick_variable(). See BlockDataInterface for more details.
void starpu_tensor_filter_block | ( | void * | father_interface, |
void * | child_interface, | ||
struct starpu_data_filter * | f, | ||
unsigned | id, | ||
unsigned | nparts | ||
) |
Partition a tensor along the X dimension, thus getting (x/nparts
,y,z,t) tensors. If nparts
does not divide x, the last submatrix contains the remainder.
See TensorDataInterface for more details.
void starpu_tensor_filter_block_shadow | ( | void * | father_interface, |
void * | child_interface, | ||
struct starpu_data_filter * | f, | ||
unsigned | id, | ||
unsigned | nparts | ||
) |
Partition a tensor along the X dimension, with a shadow border filter_arg_ptr
, thus getting ((x-2*shadow)/nparts
+2*shadow,y,z,t) tensors. If nparts
does not divide x, the last submatrix contains the remainder.
IMPORTANT: This can only be used for read-only access, as no coherency is enforced for the shadowed parts.
See TensorDataInterface for more details.
void starpu_tensor_filter_vertical_block | ( | void * | father_interface, |
void * | child_interface, | ||
struct starpu_data_filter * | f, | ||
unsigned | id, | ||
unsigned | nparts | ||
) |
Partition a tensor along the Y dimension, thus getting (x,y/nparts
,z,t) tensors. If nparts
does not divide y, the last submatrix contains the remainder.
See TensorDataInterface for more details.
void starpu_tensor_filter_vertical_block_shadow | ( | void * | father_interface, |
void * | child_interface, | ||
struct starpu_data_filter * | f, | ||
unsigned | id, | ||
unsigned | nparts | ||
) |
Partition a tensor along the Y dimension, with a shadow border filter_arg_ptr
, thus getting (x,(y-2*shadow)/nparts
+2*shadow,z,t) tensors. If nparts
does not divide y, the last submatrix contains the remainder.
IMPORTANT: This can only be used for read-only access, as no coherency is enforced for the shadowed parts.
See TensorDataInterface for more details.
void starpu_tensor_filter_depth_block | ( | void * | father_interface, |
void * | child_interface, | ||
struct starpu_data_filter * | f, | ||
unsigned | id, | ||
unsigned | nparts | ||
) |
Partition a tensor along the Z dimension, thus getting (x,y,z/nparts
,t) tensors. If nparts
does not divide z, the last submatrix contains the remainder.
See TensorDataInterface for more details.
void starpu_tensor_filter_depth_block_shadow | ( | void * | father_interface, |
void * | child_interface, | ||
struct starpu_data_filter * | f, | ||
unsigned | id, | ||
unsigned | nparts | ||
) |
Partition a tensor along the Z dimension, with a shadow border filter_arg_ptr
, thus getting (x,y,(z-2*shadow)/nparts
+2*shadow,t) tensors. If nparts
does not divide z, the last submatrix contains the remainder.
IMPORTANT: This can only be used for read-only access, as no coherency is enforced for the shadowed parts.
See TensorDataInterface for more details.
void starpu_tensor_filter_time_block | ( | void * | father_interface, |
void * | child_interface, | ||
struct starpu_data_filter * | f, | ||
unsigned | id, | ||
unsigned | nparts | ||
) |
Partition a tensor along the T dimension, thus getting (x,y,z,t/nparts
) tensors. If nparts
does not divide t, the last submatrix contains the remainder.
See TensorDataInterface for more details.
void starpu_tensor_filter_time_block_shadow | ( | void * | father_interface, |
void * | child_interface, | ||
struct starpu_data_filter * | f, | ||
unsigned | id, | ||
unsigned | nparts | ||
) |
Partition a tensor along the T dimension, with a shadow border filter_arg_ptr
, thus getting (x,y,z,(t-2*shadow)/nparts
+2*shadow) tensors. If nparts
does not divide t, the last submatrix contains the remainder.
IMPORTANT: This can only be used for read-only access, as no coherency is enforced for the shadowed parts.
See TensorDataInterface for more details.
void starpu_tensor_filter_pick_block_t | ( | void * | father_interface, |
void * | child_interface, | ||
struct starpu_data_filter * | f, | ||
unsigned | id, | ||
unsigned | nparts | ||
) |
Pick nparts
contiguous blocks from a tensor along the T dimension. The starting position on T-axis is set in starpu_data_filter::filter_arg_ptr
.
starpu_data_filter::get_child_ops
needs to be set to starpu_tensor_filter_pick_block_child_ops(). A usage example is available in examples/filters/ftensor_pick_block.c
See TensorDataInterface for more details.
void starpu_tensor_filter_pick_block_z | ( | void * | father_interface, |
void * | child_interface, | ||
struct starpu_data_filter * | f, | ||
unsigned | id, | ||
unsigned | nparts | ||
) |
Pick nparts
contiguous blocks from a tensor along the Z dimension. The starting position on Z-axis is set in starpu_data_filter::filter_arg_ptr
.
starpu_data_filter::get_child_ops
needs to be set to starpu_tensor_filter_pick_block_child_ops(). A usage example is available in examples/filters/ftensor_pick_block.c
See TensorDataInterface for more details.
void starpu_tensor_filter_pick_block_y | ( | void * | father_interface, |
void * | child_interface, | ||
struct starpu_data_filter * | f, | ||
unsigned | id, | ||
unsigned | nparts | ||
) |
Pick nparts
contiguous blocks from a tensor along the Y dimension. The starting position on Y-axis is set in starpu_data_filter::filter_arg_ptr
.
starpu_data_filter::get_child_ops
needs to be set to starpu_tensor_filter_pick_block_child_ops(). A usage example is available in examples/filters/ftensor_pick_block.c
See TensorDataInterface for more details.
struct starpu_data_interface_ops * starpu_tensor_filter_pick_block_child_ops | ( | struct starpu_data_filter * | f, |
unsigned | child | ||
) |
Return the child_ops of the partition obtained with starpu_tensor_filter_pick_block_t(), starpu_tensor_filter_pick_block_z() and starpu_tensor_filter_pick_block_y(). See TensorDataInterface for more details.
void starpu_tensor_filter_pick_variable | ( | void * | father_interface, |
void * | child_interface, | ||
struct starpu_data_filter * | f, | ||
unsigned | id, | ||
unsigned | nparts | ||
) |
Pick nparts
contiguous variables from a tensor. The starting position is set in starpu_data_filter::filter_arg_ptr
.
starpu_data_filter::get_child_ops
needs to be set to starpu_tensor_filter_pick_variable_child_ops(). A usage example is available in examples/filters/ftensor_pick_variable.c
See TensorDataInterface for more details.
struct starpu_data_interface_ops * starpu_tensor_filter_pick_variable_child_ops | ( | struct starpu_data_filter * | f, |
unsigned | child | ||
) |
Return the child_ops of the partition obtained with starpu_tensor_filter_pick_variable(). See TensorDataInterface for more details.
void starpu_ndim_filter_block | ( | void * | father_interface, |
void * | child_interface, | ||
struct starpu_data_filter * | f, | ||
unsigned | id, | ||
unsigned | nparts | ||
) |
Partition a ndim array along the given dimension set in starpu_data_filter::filter_arg
. If nparts
does not divide the element number on dimension, the last submatrix contains the remainder.
See NdimDataInterface for more details.
void starpu_ndim_filter_block_shadow | ( | void * | father_interface, |
void * | child_interface, | ||
struct starpu_data_filter * | f, | ||
unsigned | id, | ||
unsigned | nparts | ||
) |
Partition a ndim array along the given dimension set in starpu_data_filter::filter_arg
, with a shadow border starpu_data_filter::filter_arg_ptr
. If nparts
does not divide the element number on dimension, the last submatrix contains the remainder.
IMPORTANT: This can only be used for read-only access, as no coherency is enforced for the shadowed parts.
See NdimDataInterface for more details.
void starpu_ndim_filter_to_tensor | ( | void * | father_interface, |
void * | child_interface, | ||
struct starpu_data_filter * | f, | ||
unsigned | id, | ||
unsigned | nparts | ||
) |
Partition a 4-dim array into nparts
tensors along the given dimension set in starpu_data_filter::filter_arg
.
starpu_data_filter::get_child_ops
needs to be set to starpu_ndim_filter_to_tensor_child_ops(). A usage example is available in examples/filters/fndim_to_tensor.c
See NdimDataInterface for more details.
void starpu_ndim_filter_to_block | ( | void * | father_interface, |
void * | child_interface, | ||
struct starpu_data_filter * | f, | ||
unsigned | id, | ||
unsigned | nparts | ||
) |
Partition a 3-dim array into nparts
blocks along the given dimension set in starpu_data_filter::filter_arg
.
starpu_data_filter::get_child_ops
needs to be set to starpu_ndim_filter_to_block_child_ops(). A usage example is available in examples/filters/fndim_to_block.c
See NdimDataInterface for more details.
void starpu_ndim_filter_to_matrix | ( | void * | father_interface, |
void * | child_interface, | ||
struct starpu_data_filter * | f, | ||
unsigned | id, | ||
unsigned | nparts | ||
) |
Partition a 2-dim array into nparts
matrices along the given dimension set in starpu_data_filter::filter_arg
.
starpu_data_filter::get_child_ops
needs to be set to starpu_ndim_filter_to_matrix_child_ops(). A usage example is available in examples/filters/fndim_to_matrix.c
See NdimDataInterface for more details.
void starpu_ndim_filter_to_vector | ( | void * | father_interface, |
void * | child_interface, | ||
struct starpu_data_filter * | f, | ||
unsigned | id, | ||
unsigned | nparts | ||
) |
Partition a 1-dim array into nparts
vectors.
starpu_data_filter::get_child_ops
needs to be set to starpu_ndim_filter_to_vector_child_ops(). A usage example is available in examples/filters/fndim_to_vector.c
See NdimDataInterface for more details.
void starpu_ndim_filter_to_variable | ( | void * | father_interface, |
void * | child_interface, | ||
struct starpu_data_filter * | f, | ||
unsigned | id, | ||
unsigned | nparts | ||
) |
Transfer a 0-dim array to a variable.
starpu_data_filter::get_child_ops
needs to be set to starpu_ndim_filter_to_variable_child_ops(). A usage example is available in examples/filters/fndim_to_variable.c
See NdimDataInterface for more details.
void starpu_ndim_filter_pick_ndim | ( | void * | father_interface, |
void * | child_interface, | ||
struct starpu_data_filter * | f, | ||
unsigned | id, | ||
unsigned | nparts | ||
) |
Pick nparts
contiguous (n-1)dim arrays from a ndim array along the given dimension set in starpu_data_filter::filter_arg
. The starting position is set in starpu_data_filter::filter_arg_ptr
.
A usage example is available in examples/filters/fndim_pick_ndim.c
See NdimDataInterface for more details.
void starpu_ndim_filter_5d_pick_tensor | ( | void * | father_interface, |
void * | child_interface, | ||
struct starpu_data_filter * | f, | ||
unsigned | id, | ||
unsigned | nparts | ||
) |
Pick nparts
contiguous tensors from a 5-dim array along the given dimension set in starpu_data_filter::filter_arg
. The starting position is set in starpu_data_filter::filter_arg_ptr
.
starpu_data_filter::get_child_ops
needs to be set to starpu_ndim_filter_pick_tensor_child_ops(). A usage example is available in examples/filters/fndim_5d_pick_tensor.c
See NdimDataInterface for more details.
void starpu_ndim_filter_4d_pick_block | ( | void * | father_interface, |
void * | child_interface, | ||
struct starpu_data_filter * | f, | ||
unsigned | id, | ||
unsigned | nparts | ||
) |
Pick nparts
contiguous blocks from a 4-dim array along the given dimension set in starpu_data_filter::filter_arg
. The starting position is set in starpu_data_filter::filter_arg_ptr
.
starpu_data_filter::get_child_ops
needs to be set to starpu_ndim_filter_pick_block_child_ops(). A usage example is available in examples/filters/fndim_4d_pick_block.c
See NdimDataInterface for more details.
void starpu_ndim_filter_3d_pick_matrix | ( | void * | father_interface, |
void * | child_interface, | ||
struct starpu_data_filter * | f, | ||
unsigned | id, | ||
unsigned | nparts | ||
) |
Pick nparts
contiguous matrices from a 3-dim array along the given dimension set in starpu_data_filter::filter_arg
. The starting position is set in starpu_data_filter::filter_arg_ptr
.
starpu_data_filter::get_child_ops
needs to be set to starpu_ndim_filter_pick_matrix_child_ops(). A usage example is available in examples/filters/fndim_3d_pick_matrix.c
See NdimDataInterface for more details.
void starpu_ndim_filter_2d_pick_vector | ( | void * | father_interface, |
void * | child_interface, | ||
struct starpu_data_filter * | f, | ||
unsigned | id, | ||
unsigned | nparts | ||
) |
Pick nparts
contiguous vectors from a 2-dim array along the given dimension set in starpu_data_filter::filter_arg
. The starting position is set in starpu_data_filter::filter_arg_ptr
.
starpu_data_filter::get_child_ops
needs to be set to starpu_ndim_filter_pick_vector_child_ops(). A usage example is available in examples/filters/fndim_2d_pick_vector.c
See NdimDataInterface for more details.
void starpu_ndim_filter_1d_pick_variable | ( | void * | father_interface, |
void * | child_interface, | ||
struct starpu_data_filter * | f, | ||
unsigned | id, | ||
unsigned | nparts | ||
) |
Pick nparts
contiguous variables from a 1-dim array. The starting position is set in starpu_data_filter::filter_arg_ptr
.
starpu_data_filter::get_child_ops
needs to be set to starpu_ndim_filter_pick_variable_child_ops(). A usage example is available in examples/filters/fndim_1d_pick_variable.c
See NdimDataInterface for more details.
void starpu_ndim_filter_pick_variable | ( | void * | father_interface, |
void * | child_interface, | ||
struct starpu_data_filter * | f, | ||
unsigned | id, | ||
unsigned | nparts | ||
) |
Pick nparts
contiguous variables from a ndim array. The starting position is set in starpu_data_filter::filter_arg_ptr
.
starpu_data_filter::get_child_ops
needs to be set to starpu_ndim_filter_pick_variable_child_ops(). A usage example is available in examples/filters/fndim_pick_variable.c
See NdimDataInterface for more details.
struct starpu_data_interface_ops * starpu_ndim_filter_pick_tensor_child_ops | ( | struct starpu_data_filter * | f, |
unsigned | child | ||
) |
Return the child_ops of the partition obtained with starpu_ndim_filter_pick_tensor(). See NdimDataInterface for more details.
struct starpu_data_interface_ops * starpu_ndim_filter_pick_block_child_ops | ( | struct starpu_data_filter * | f, |
unsigned | child | ||
) |
Return the child_ops of the partition obtained with starpu_ndim_filter_pick_block(). See NdimDataInterface for more details.
struct starpu_data_interface_ops * starpu_ndim_filter_pick_matrix_child_ops | ( | struct starpu_data_filter * | f, |
unsigned | child | ||
) |
Return the child_ops of the partition obtained with starpu_ndim_filter_pick_matrix(). See NdimDataInterface for more details.
struct starpu_data_interface_ops * starpu_ndim_filter_pick_vector_child_ops | ( | struct starpu_data_filter * | f, |
unsigned | child | ||
) |
Return the child_ops of the partition obtained with starpu_ndim_filter_pick_vector(). See NdimDataInterface for more details.
struct starpu_data_interface_ops * starpu_ndim_filter_pick_variable_child_ops | ( | struct starpu_data_filter * | f, |
unsigned | child | ||
) |
Return the child_ops of the partition obtained with starpu_ndim_filter_pick_variable(). See NdimDataInterface for more details.
struct starpu_data_interface_ops * starpu_ndim_filter_to_tensor_child_ops | ( | struct starpu_data_filter * | f, |
unsigned | child | ||
) |
Return the child_ops of the partition obtained with starpu_ndim_filter_to_tensor(). See NdimDataInterface for more details.
struct starpu_data_interface_ops * starpu_ndim_filter_to_block_child_ops | ( | struct starpu_data_filter * | f, |
unsigned | child | ||
) |
Return the child_ops of the partition obtained with starpu_ndim_filter_to_block(). See NdimDataInterface for more details.
struct starpu_data_interface_ops * starpu_ndim_filter_to_matrix_child_ops | ( | struct starpu_data_filter * | f, |
unsigned | child | ||
) |
Return the child_ops of the partition obtained with starpu_ndim_filter_to_matrix(). See NdimDataInterface for more details.
struct starpu_data_interface_ops * starpu_ndim_filter_to_vector_child_ops | ( | struct starpu_data_filter * | f, |
unsigned | child | ||
) |
Return the child_ops of the partition obtained with starpu_ndim_filter_to_vector(). See NdimDataInterface for more details.
struct starpu_data_interface_ops * starpu_ndim_filter_to_variable_child_ops | ( | struct starpu_data_filter * | f, |
unsigned | child | ||
) |
Return the child_ops of the partition obtained with starpu_ndim_filter_to_variable(). See NdimDataInterface for more details.
void starpu_filter_nparts_compute_chunk_size_and_offset | ( | unsigned | n, |
unsigned | nparts, | ||
size_t | elemsize, | ||
unsigned | id, | ||
unsigned | blocksize, | ||
unsigned * | chunk_size, | ||
size_t * | offset | ||
) |
Given an integer n
, n
the number of parts it must be divided in, id
the part currently considered, determines the chunk_size
and the offset
, taking into account the size of the elements stored in the data structure elemsize
and blocksize
, which is most often 1. See DefiningANewDataFilter for more details.