Misc¶
starter.param¶
random.param¶
Configure the pseudorandom number generator (PRNG).
Allows to select method and global seeds in order to vary the initial state of the parallel PRNG.
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namespace
picongpu
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namespace
random
Typedefs
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using
Generator
= pmacc::random::methods::XorMin<> Random number generation methods.
It is not allowed to change the method and restart an already existing checkpoint.
pmacc::random::methods::XorMin
pmacc::random::methods::MRG32k3aMin
pmacc::random::methods::AlpakaRand
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using
SeedGenerator
= seed::Value<42> random number start seed
Generator to create a seed for the random number generator. Depending of the generator the seed is reproducible or or changed with each program execution.
seed::Value< 42 >
seed::FromTime
seed::FromEnvironment
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using
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namespace
physicalConstants.param¶
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namespace
picongpu
Variables
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constexpr float_64
PI
= 3.141592653589793238462643383279502884197169399
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constexpr float_64
UNIT_SPEED
= SI::SPEED_OF_LIGHT_SI Unit of speed.
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constexpr float_X
SPEED_OF_LIGHT
= float_X(SI::SPEED_OF_LIGHT_SI / UNIT_SPEED)
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constexpr float_64
UNITCONV_keV_to_Joule
= 1.60217646e-16
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constexpr float_64
UNITCONV_Joule_to_keV
= (1.0 / UNITCONV_keV_to_Joule)
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constexpr float_64
UNITCONV_AU_to_eV
= 27.21139
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constexpr float_64
UNITCONV_eV_to_AU
= (1.0 / UNITCONV_AU_to_eV)
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namespace
SI
Variables
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constexpr float_64
SPEED_OF_LIGHT_SI
= 2.99792458e8 unit: m / s
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constexpr float_64
MUE0_SI
= PI * 4.e-7 unit: N / A^2
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constexpr float_64
EPS0_SI
= 1.0 / MUE0_SI / SPEED_OF_LIGHT_SI / SPEED_OF_LIGHT_SI unit: C / (V m)
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constexpr float_64
Z0_SI
= MUE0_SI * SPEED_OF_LIGHT_SI impedance of free space unit: ohm
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constexpr float_64
HBAR_SI
= 1.054571800e-34 reduced Planck constant unit: J * s
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constexpr float_64
ELECTRON_MASS_SI
= 9.109382e-31 unit: kg
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constexpr float_64
ELECTRON_CHARGE_SI
= -1.602176e-19 unit: C
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constexpr float_64
ATOMIC_UNIT_ENERGY
= 4.36e-18
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constexpr float_64
ATOMIC_UNIT_EFIELD
= 5.14e11
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constexpr float_64
ATOMIC_UNIT_TIME
= 2.4189e-17
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constexpr float_64
N_AVOGADRO
= 6.02214076e23 Avogadro number unit: mol^-1.
Y. Azuma et al. Improved measurement results for the Avogadro constant using a 28-Si-enriched crystal, Metrologie 52, 2015, 360-375 doi:10.1088/0026-1394/52/2/360
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constexpr float_64
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constexpr float_64