https://hal.archives-ouvertes.fr/hal-02443512
Tip revision: 31be198773f103324593d26369f135fbde5b97f8 authored by Software Heritage on 20 January 2020, 08:58:55 UTC
hal: Deposit 359 in collection hal
hal: Deposit 359 in collection hal
Tip revision: 31be198
starpu_sched_ctx_hypervisor.h
/* StarPU --- Runtime system for heterogeneous multicore architectures.
*
* Copyright (C) 2010,2012,2013,2015 Inria
* Copyright (C) 2013,2017,2019 CNRS
*
* 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.
*/
#ifndef __STARPU_SCHED_CTX_HYPERVISOR_H__
#define __STARPU_SCHED_CTX_HYPERVISOR_H__
#ifdef __cplusplus
extern "C"
{
#endif
/**
@ingroup API_Scheduling_Contexts
@{
*/
/**
@name Scheduling Context Link with Hypervisor
@{
*/
/**
Performance counters used by the starpu to indicate the hypervisor
how the application and the resources are executing.
*/
struct starpu_sched_ctx_performance_counters
{
/**
Inform the hypervisor for how long a worker has been idle
in the specified context
*/
void (*notify_idle_cycle)(unsigned sched_ctx_id, int worker, double idle_time);
/**
Inform the hypervisor that a task executing a specified
number of instructions has been poped from the worker
*/
void (*notify_poped_task)(unsigned sched_ctx_id, int worker);
/**
Notify the hypervisor that a task has been scheduled on
the queue of the worker corresponding to the specified
context
*/
void (*notify_pushed_task)(unsigned sched_ctx_id, int worker);
/**
Notify the hypervisor that a task has just been executed
*/
void (*notify_post_exec_task)(struct starpu_task *task, size_t data_size, uint32_t footprint, int hypervisor_tag, double flops);
/**
Notify the hypervisor that a task has just been submitted
*/
void (*notify_submitted_job)(struct starpu_task *task, uint32_t footprint, size_t data_size);
void (*notify_empty_ctx)(unsigned sched_ctx_id, struct starpu_task *task);
/**
Notify the hypervisor that the context was deleted
*/
void (*notify_delete_context)(unsigned sched_ctx);
};
/**
Indicate to starpu the pointer to the performance counter
*/
void starpu_sched_ctx_set_perf_counters(unsigned sched_ctx_id, void *perf_counters);
/**
Callback that lets the scheduling policy tell the hypervisor that a
task was pushed on a worker
*/
void starpu_sched_ctx_call_pushed_task_cb(int workerid, unsigned sched_ctx_id);
/**
Allow the hypervisor to let starpu know it's initialised
*/
void starpu_sched_ctx_notify_hypervisor_exists(void);
/**
Ask starpu if it is informed if the hypervisor is initialised
*/
unsigned starpu_sched_ctx_check_if_hypervisor_exists(void);
void starpu_sched_ctx_update_start_resizing_sample(unsigned sched_ctx_id, double start_sample);
/** @} */
/** @} */
#ifdef __cplusplus
}
#endif
#endif /* __STARPU_SCHED_CTX_HYPERVISOR_H__ */