Table of Contents

Mojo struct

Solver

@memory_only
struct Solver

Aliases

  • LOWER_BOUND = 0
  • UPPER_BOUND = 1
  • FREE = 2

Fields

  • active_size (Int)
  • y (UnsafePointer[Int8, MutExternalOrigin])
  • G (UnsafePointer[Float64, MutExternalOrigin])
  • alpha_status (UnsafePointer[Int8, MutExternalOrigin])
  • alpha (UnsafePointer[Float64, MutExternalOrigin])
  • QD (UnsafePointer[Float64, MutExternalOrigin])
  • eps (Float64)
  • Cp (Float64)
  • Cn (Float64)
  • p (UnsafePointer[Float64, MutExternalOrigin])
  • active_set (UnsafePointer[Scalar[DType.int], MutExternalOrigin])
  • G_bar (UnsafePointer[Float64, MutExternalOrigin])
  • l (Int)
  • unshrink (Bool)

Implemented traits

AnyType, ImplicitlyDestructible

Methods

__init__

def __init__(out self)

Args:

  • self (Self)

Returns:

Self

get_C

def get_C(self, i: Int) -> Float64

Args:

  • self (Self)
  • i (Int)

Returns:

Float64

update_alpha_status

def update_alpha_status(self, i: Int)

Args:

  • self (Self)
  • i (Int)

is_upper_bound

def is_upper_bound(self, i: Int) -> Bool

Args:

  • self (Self)
  • i (Int)

Returns:

Bool

is_lower_bound

def is_lower_bound(self, i: Int) -> Bool

Args:

  • self (Self)
  • i (Int)

Returns:

Bool

is_free

def is_free(self, i: Int) -> Bool

Args:

  • self (Self)
  • i (Int)

Returns:

Bool

swap_index

def swap_index[QM: QMatrix](self, mut Q: QM, i: Int, j: Int)

Parameters:

  • QM (QMatrix)

Args:

  • self (Self)
  • Q (QM)
  • i (Int)
  • j (Int)

reconstruct_gradient

def reconstruct_gradient[QM: QMatrix](self, mut Q: QM)

Parameters:

  • QM (QMatrix)

Args:

  • self (Self)
  • Q (QM)

Solve

def Solve[QM: QMatrix](mut self, l: Int, mut Q: QM, p_: UnsafePointer[Float64, MutExternalOrigin], y_: UnsafePointer[Int8, MutExternalOrigin], alpha_: UnsafePointer[Float64, MutExternalOrigin], Cp: Float64, Cn: Float64, eps: Float64, mut si: SolutionInfo, shrinking: Int)

Parameters:

  • QM (QMatrix)

Args:

  • self (Self)
  • l (Int)
  • Q (QM)
  • p_ (UnsafePointer)
  • y_ (UnsafePointer)
  • alpha_ (UnsafePointer)
  • Cp (Float64)
  • Cn (Float64)
  • eps (Float64)
  • si (SolutionInfo)
  • shrinking (Int)

select_working_set

def select_working_set[QM: QMatrix](self, mut Q: QM, mut out_i: Int, mut out_j: Int) -> Int

Parameters:

  • QM (QMatrix)

Args:

  • self (Self)
  • Q (QM)
  • out_i (Int)
  • out_j (Int)

Returns:

Int

be_shrunk

def be_shrunk(self, i: Int, Gmax1: Float64, Gmax2: Float64) -> Bool

Args:

  • self (Self)
  • i (Int)
  • Gmax1 (Float64)
  • Gmax2 (Float64)

Returns:

Bool

do_shrinking

def do_shrinking[QM: QMatrix](mut self, mut Q: QM)

Parameters:

  • QM (QMatrix)

Args:

  • self (Self)
  • Q (QM)

calculate_rho

def calculate_rho(self) -> Float64

Args:

  • self (Self)

Returns:

Float64

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