seed.h File Reference

#include <cstdint>
#include <random>
#include "gromacs/utility/basedefinitions.h"

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Description

Random seed and domain utilities.

This file contains utilities to create true random seeds from the system, and logic to keep track of different random domains for random engines such as ThreeFry that can take a second seed value.

Author

Erik Lindahl erik..nosp@m.lind.nosp@m.ahl@g.nosp@m.mail.nosp@m..com

Typedefs
typedef std::random_device	gmx::RandomDevice
	Random device. More...

Enumerations
enum	gmx::RandomDomain {   gmx::RandomDomain::Other = 0x00000000, gmx::RandomDomain::MaxwellVelocities = 0x00001000, gmx::RandomDomain::TestParticleInsertion = 0x00002000, gmx::RandomDomain::UpdateCoordinates = 0x00003000,   gmx::RandomDomain::UpdateConstraints = 0x00004000, gmx::RandomDomain::Thermostat = 0x00005000, gmx::RandomDomain::Barostat = 0x00006000, gmx::RandomDomain::ReplicaExchange = 0x00007000,   gmx::RandomDomain::ExpandedEnsemble = 0x00008000, gmx::RandomDomain::AwhBiasing = 0x00009000 }
	Enumerated values for fixed part of random seed (domain) More...

Functions
uint64_t	gmx::makeRandomSeed ()
	Return 64 random bits from the random device, suitable as seed. More...