#include <dlfcn.h>
#include <unistd.h>
#include <mpi.h>
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include "Timer.h"

Include dependency graph for Sync_Time_MPI.h:

This graph shows which files directly or indirectly include this file:

Data Structures
struct	sync_tree_conf
	This structure describes a tree node for time synchronization. More...

Macros
#define	_GNU_SOURCE

#define	SYNC_TIME

#define	MAX_LOOP_TRY 20
	the maximum number computations tries More...

#define	SYNC_TAG 1234
	The tag for time sync communications. More...

#define	MAX_AVG 10
	the number of offset computations to perform to get an average offset More...

Functions
void	sync_mpi ()
	Entry point to be used to perform time sync of every MPI Processes. More...

void	compute_sync_tree (struct sync_tree_conf conf, void(action)(struct sync_tree_conf next_conf, void arg), void(per_child_act)(struct sync_tree_conf conf, void arg), void(post_action)(struct sync_tree_conf next_conf, void arg), void *arg)
	This function does the actual work prepared by bootstrap_sync_tree(). More...

void	bootstrap_sync_tree (void(action)(struct sync_tree_conf next_conf, void arg), void(per_child_act)(struct sync_tree_conf conf, void arg), void(post_action)(struct sync_tree_conf next_conf, void arg), void arg)
	This is a bootstrapping function for calling compute_sync_tree();. More...

void	perchild_host (struct sync_tree_conf c, void arg)
	What to be done on each node's child. More...

void	post_client (struct sync_tree_conf c, void arg)
	What to be done on the client side. More...

void	action_set_off (struct sync_tree_conf c, void poffset)
	Copies offset of c to current process timer offset (poffset) More...

void	action_val (struct sync_tree_conf c, void arg)
	For debugging only. More...

void	sync_server (int dest_rank)
	Server function for synchronizing time. More...

void	sync_client (int parent, void *poffset)
	The client function for synchronizing time (computes offset between server and client) More...

static uint64_t	abs_diff (uint64_t a, uint64_t b)
	Computes an absolute difference. More...

static uint32_t	nearest_pow (uint32_t num)
	Computes the nearest. More...

Macro Definition Documentation

#define _GNU_SOURCE

Definition at line 19 of file Sync_Time_MPI.h.

#define SYNC_TIME

Definition at line 32 of file Sync_Time_MPI.h.

Data Structures