StarPU Internal Handbook
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#include <starpu.h>
#include <starpu_profiling.h>
#include <starpu_util.h>
#include <common/config.h>
Go to the source code of this file.
Functions | |
struct starpu_profiling_task_info * | _starpu_allocate_profiling_info_if_needed (struct starpu_task *task) |
void | _starpu_worker_update_profiling_info_executing (int workerid, struct timespec *executing_time, int executed_tasks, uint64_t used_cycles, uint64_t stall_cycles, double consumed_energy, double flops) |
void | _starpu_worker_restart_sleeping (int workerid) |
void | _starpu_worker_stop_sleeping (int workerid) |
void | _starpu_worker_register_executing_start_date (int workerid, struct timespec *executing_start) |
void | _starpu_worker_register_executing_end (int workerid) |
void | _starpu_initialize_busid_matrix (void) |
int | _starpu_register_bus (int src_node, int dst_node) |
void | _starpu_bus_update_profiling_info (int src_node, int dst_node, size_t size) |
void | _starpu_profiling_set_task_push_start_time (struct starpu_task *task) |
void | _starpu_profiling_set_task_push_end_time (struct starpu_task *task) |
void | _starpu_profiling_init (void) |
void | _starpu_profiling_start (void) |
void | _starpu_profiling_terminate (void) |
struct starpu_profiling_task_info* _starpu_allocate_profiling_info_if_needed | ( | struct starpu_task * | task | ) |
Create a task profiling info structure (with the proper time stamps) in case profiling is enabled.
void _starpu_worker_update_profiling_info_executing | ( | int | workerid, |
struct timespec * | executing_time, | ||
int | executed_tasks, | ||
uint64_t | used_cycles, | ||
uint64_t | stall_cycles, | ||
double | consumed_energy, | ||
double | flops | ||
) |
Update the per-worker profiling info after a task (or more) was executed. This tells StarPU how much time was spent doing computation.
void _starpu_worker_restart_sleeping | ( | int | workerid | ) |
Record the date when the worker started to sleep. This permits to measure how much time was spent sleeping.
void _starpu_worker_stop_sleeping | ( | int | workerid | ) |
Record the date when the worker stopped sleeping. This permits to measure how much time was spent sleeping.
void _starpu_worker_register_executing_start_date | ( | int | workerid, |
struct timespec * | executing_start | ||
) |
Record the date when the worker started to execute a piece of code. This permits to measure how much time was really spent doing computation at the end of the codelet.
void _starpu_worker_register_executing_end | ( | int | workerid | ) |
Record that the worker is not executing any more.
void _starpu_initialize_busid_matrix | ( | void | ) |
When StarPU is initialized, a matrix describing all the bus between memory nodes is created: it indicates whether there is a physical link between two memory nodes or not. This matrix should contain the identifier of the bus between two nodes or -1 in case there is no link.
int _starpu_register_bus | ( | int | src_node, |
int | dst_node | ||
) |
Tell StarPU that there exists a link between the two memory nodes. This function returns the identifier associated to the bus which can be used to retrieve profiling information about the bus activity later on.
void _starpu_bus_update_profiling_info | ( | int | src_node, |
int | dst_node, | ||
size_t | size | ||
) |
Tell StarPU that "size" bytes were transferred between the two specified memory nodes.
void _starpu_profiling_init | ( | void | ) |
This function needs to be called before other starpu_profile_* functions
void _starpu_profiling_start | ( | void | ) |
This function starts profiling if the STARPU_PROFILING environment variable was set