Pscf::Prdc::Cpu::Reduce Namespace Reference

Functions that perform array reductions on the Cpu. More...

Functions
double	max (Array< double > const &in)
	Get maximum of array elements .
double	maxAbs (Array< double > const &in)
	Get maximum absolute magnitude of array elements .
double	min (Array< double > const &in)
	Get minimum of array elements .
double	minAbs (Array< double > const &in)
	Get minimum absolute magnitude of array elements .
double	sum (Array< double > const &in)
	Compute sum of array elements .
double	innerProduct (Array< double > const &a, Array< double > const &b)
	Compute inner product of two real arrays .

Detailed Description

Functions that perform array reductions on the Cpu.

A reduction is any operation that involves reducing all of the elements of an array or set of arrays to a single scalar.
Examples include taking the sum or finding the maximum of all array elements, or taking an inner product of two arrays.

Function Documentation

max()

double Pscf::Prdc::Cpu::Reduce::max

(

Array< double > const &

in

)

Get maximum of array elements .

Parameters

in	input array

Definition at line 20 of file Reduce.cpp.

References Util::Array< Data >::capacity(), max(), and UTIL_CHECK.

Referenced by max(), and maxAbs().

maxAbs()

double Pscf::Prdc::Cpu::Reduce::maxAbs

(

Array< double > const &

in

)

Get maximum absolute magnitude of array elements .

Parameters

in	input array

Definition at line 34 of file Reduce.cpp.

References Util::Array< Data >::capacity(), max(), and UTIL_CHECK.

min()

double Pscf::Prdc::Cpu::Reduce::min

(

Array< double > const &

in

)

Get minimum of array elements .

Parameters

in	input array

Definition at line 50 of file Reduce.cpp.

References Util::Array< Data >::capacity(), min(), and UTIL_CHECK.

Referenced by min(), and minAbs().

minAbs()

double Pscf::Prdc::Cpu::Reduce::minAbs

(

Array< double > const &

in

)

Get minimum absolute magnitude of array elements .

Parameters

in	input array

Definition at line 64 of file Reduce.cpp.

References Util::Array< Data >::capacity(), min(), and UTIL_CHECK.

sum()

double Pscf::Prdc::Cpu::Reduce::sum

(

Array< double > const &

in

)

Compute sum of array elements .

Parameters

in	input array

Definition at line 80 of file Reduce.cpp.

References Util::Array< Data >::capacity(), sum(), and UTIL_CHECK.

Referenced by Pscf::Rpg::Solvent< D >::compute(), Pscf::Rpg::Simulator< D >::computeHamiltonian(), Pscf::Rpg::Propagator< D >::computeQ(), Pscf::Rpg::Block< D >::computeStressBead(), Pscf::Rpg::Block< D >::computeStressThread(), innerProduct(), Pscf::Rpg::ForceBiasMove< D >::move(), Pscf::Rpg::Mask< D >::rGridAverage(), and sum().

innerProduct()

double Pscf::Prdc::Cpu::Reduce::innerProduct	(	Array< double > const &	a,
		Array< double > const &	b )

Compute inner product of two real arrays .

Parameters

a	first input array
b	second input array

Definition at line 94 of file Reduce.cpp.

References Util::Array< Data >::capacity(), sum(), and UTIL_CHECK.

Referenced by Pscf::Rpg::Simulator< D >::computeHamiltonian(), Pscf::Rpg::Propagator< D >::computeQ(), Pscf::Rpg::EinsteinCrystalPerturbation< D >::hamiltonian(), Pscf::Rpg::FilmFieldGenExt< D >::stress(), and Pscf::Rpg::FilmFieldGenMask< D >::stress().