Declarations for global variables and associated functions. More...

#include "typedefs.h"

Classes
class	Globals
	PE-level variables which may change over time. More...

Macros
#define	PE_VALUE(x) get_globals()->x
	Macro to simplify global variable access.

Functions
void	clear_globals ()
	sets all global variables to default values More...

Globals *	get_globals ()
	returns a pointer to the local Globals object More...

Variables
LP Configuration
unsigned	g_total_lps
	total number of LPs

unsigned	g_num_chares
	total number of chares

unsigned	g_lps_per_chare
	number of LPs per chare (if constant)

LPMapper *	g_lp_mapper
	mapper for placing and locating LPs

LPFactory *	g_lp_factory
	factory for creating LPs based on global id

Event Configuration
Time	g_tw_lookahead
	event lookahead (conservative)

uint32_t	g_num_msg_types
	number of message types

uint32_t	g_event_buffer_size
	event buffer size

Scheduler Configuration
unsigned	g_tw_synchronization_protocol
	scheduler type

unsigned	g_tw_mblock
	batch size for event execution

Time	g_tw_ts_end
	end time of simulation

GVT Configuration
unsigned	g_tw_gvt_scheme
	GVT algorithm.

unsigned	g_tw_gvt_interval
	distance between GVT calls

unsigned	g_tw_gvt_trigger
	unit of the GVT interval (time or events)

unsigned	g_tw_gvt_phases
	number of phases in a phased gvt

unsigned	g_tw_gvt_bucket_size
	size of each bucket in a bucketed gvt

unsigned	g_tw_async_reduction
	use asynchronous reductions in GVTs

double	g_tw_reserve_threshold

uint32_t	g_tw_reserve_buckets

uint32_t	g_tw_adaptive_buckets

uint32_t	g_tw_clear_lag

uint32_t	g_tw_clear_buckets

LB Configuration
uint32_t	g_tw_ldb_continuous

uint32_t	g_tw_ldb_first
	first interval to call lb

unsigned	g_tw_ldb_interval
	number of intervals to wait before lb

unsigned	g_tw_max_ldb
	max number of times to call lb

unsigned	g_tw_ldb_metric
	metric used to measure LP load

unsigned	g_tw_metric_ts_abs
	use absolute time or not

unsigned	g_tw_metric_invert
	whether or not to invert metric

RNG Configuration
unsigned	g_tw_rng_default

Misc Configuration
char	g_output_dir [256]
	output directory for extra logging

unsigned	gvt_print_interval
	frequency of progress print outs

unsigned	g_tw_stat_interval
	frequency of logging stats (in GVTs)

long int	g_tw_expected_events
	expected number of committed events

Detailed Description

Declarations for global variables and associated functions.

Most declarations in this file are for "constant" global variables that are set during startup based on model/simulator configuration and don't ever change. Variables that are global per PE, but will change at a PE level are wrapped in a small class which will be instantiated once on each PE.

Function Documentation

◆ clear_globals()

void clear_globals ( )

sets all global variables to default values

Todo:: Can these just be initialized at declaration? Especially if they are all moved to more appropriate modules.

◆ get_globals()

Globals* get_globals ( )

returns a pointer to the local Globals object

Store the pointer in a static variable for faster lookup

Variable Documentation

◆ g_tw_rng_default

unsigned g_tw_rng_default

Todo:: documentation needed

Classes

Macros