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, int executed_tasks, uint64_t used_cycles, uint64_t stall_cycles, double consumed_energy, double flops) |
void | _starpu_worker_start_state (int workerid, enum _starpu_worker_status_index index, struct timespec *start_time) |
void | _starpu_worker_stop_state (int workerid, enum _starpu_worker_status_index index, struct timespec *stop_time) |
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, |
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_start_state | ( | int | workerid, |
enum _starpu_worker_status_index | index, | ||
struct timespec * | start_time | ||
) |
Record the date when the worker entered this state. This permits to measure how much time was spent in this state. start_time is optional, if unspecified, _starpu_worker_start_state will just take the current time.
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