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globals.h File Reference

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Detailed Description

Public headers for globals.c.

Header

/u/nn/cvsroot/lissom/src/globals.h,v 1.63 2002/07/17 02:22:08 yschoe Exp

Definition in file globals.h.

#include "cmdparam.h"

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Compounds
struct	setfnobj2_fixed_arch_param_setfn2
struct	setfnobj2_read_only_param_setfn2
Defines
#define	NPES   1
	Assume single-processor architecture if unknown.
#define	PARENTPE   0
	Declare which PE is the master (the oldest PE) and alternate master (the youngest PE).
#define	YOUNGESTPE   (NPEs-1)
#define	AMPARENTPE   (MyPE==PARENTPE)
#define	AMYOUNGESTPE   (MyPE==YOUNGESTPE)
#define	PEISME(pe)   ((pe)==MyPE)
#define	DEATH_FLAG   1.0E-10
	Marker for dead connection, usually stored as a negative value to distinguish it from live weights.
Functions
cmdstat	fixed_arch_param_setfn2 (const string &name, Typeless &param, const Typeless &newvalue)
cmdstat	read_only_param_setfn2 (const string &name, Typeless &param, const Typeless &newvalue)
void	globals_init_hook (void)
void	kernel_init_hook (void)
	Parameters used by kernel.c only; placed here to speed up compilation of kernel.c.
Variables
int	iteration
int	presentation
int	MyPE
	Unique number for this processor.
int	network_initialized
	Whether init_network has been called yet.
int	NPEs
	Number of processors total.
string	filebase

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Define Documentation

#define DEATH_FLAG   1.0E-10

Marker for dead connection, usually stored as a negative value to distinguish it from live weights. The value must be small (i.e. much less than 1.0, the total sum of weights), so that read-only routines can simply process values without first checking if they are dead. (This hack is an optimization that saves a little time when computing responses, but probably not enough time to be worth all the confusion it causes.) All code that ever modifies a weight must respect dead weights, i.e. not modify any weight whose current value is equal to or less than this value. Definition at line 42 of file globals.h. Referenced by LissomMap::clear_weights(), LissomMap::get_weights(), LissomMap::modify_weights(), LissomMap::prune(), LissomMap::prune_circular_aff_weights(), and LissomMap::prune_circular_lat_weights().

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