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tensors: cleanup using, and make a few float math operations faster.

flac
John Benediktsson 2020-01-30 13:39:27 -08:00 committed by Steve Ayerhart
parent c196f9f022
commit 085436a156
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1 changed files with 13 additions and 14 deletions
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extra/tensors/tensors.factor
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@ -1,11 +1,9 @@
! Copyright (C) 2019 HMC Clinic.
! See http://factorcode.org/license.txt for BSD license.
USING: accessors alien.c-types alien.data arrays
concurrency.combinators grouping kernel locals math.functions
math.ranges math.statistics math multi-methods quotations sequences
sequences.extras sequences.private specialized-arrays
tensors.tensor-slice typed ;
USING: accessors alien.data arrays grouping kernel locals math
math.functions math.ranges multi-methods sequences
sequences.extras sequences.private specialized-arrays typed ;
QUALIFIED-WITH: alien.c-types c
SPECIALIZED-ARRAY: c:float
@ -113,20 +111,20 @@ METHOD: t- { number tensor } [ >float ] dip [ - ] with t-uop ;
! Multiply a tensor with either another tensor or a scalar
multi-methods:GENERIC: t* ( x y -- tensor )
METHOD: t* { tensor tensor } [ * ] t-bop ;
METHOD: t* { tensor number } [ * ] curry t-uop ;
METHOD: t* { tensor number } >float [ * ] curry t-uop ;
METHOD: t* { number tensor } [ >float ] dip [ * ] with t-uop ;
! Divide two tensors or a tensor and a scalar
multi-methods:GENERIC: t/ ( x y -- tensor )
METHOD: t/ { tensor tensor } [ / ] t-bop ;
METHOD: t/ { tensor number } [ / ] curry t-uop ;
METHOD: t/ { number tensor } [ / ] with t-uop ;
METHOD: t/ { tensor number } >float [ / ] curry t-uop ;
METHOD: t/ { number tensor } [ >float ] dip [ / ] with t-uop ;
! Divide two tensors or a tensor and a scalar
multi-methods:GENERIC: t% ( x y -- tensor )
METHOD: t% { tensor tensor } [ mod ] t-bop ;
METHOD: t% { tensor number } [ mod ] curry t-uop ;
METHOD: t% { number tensor } [ mod ] with t-uop ;
METHOD: t% { tensor number } >float [ mod ] curry t-uop ;
METHOD: t% { number tensor } [ >float ] dip [ mod ] with t-uop ;
<PRIVATE
@ -152,9 +150,9 @@ METHOD: t% { number tensor } [ mod ] with t-uop ;
! Perform matrix multiplication muliplying an
! mxn matrix with a nxp matrix
TYPED:: 2d-matmul ( vec1: float-array start1: fixnum
vec2: float-array start2: fixnum
res: float-array start3: fixnum
m: fixnum n: fixnum p: fixnum -- )
vec2: float-array start2: fixnum
res: float-array start3: fixnum
m: fixnum n: fixnum p: fixnum -- )
! For each element in the range, we want to compute the dot product of the
! corresponding row and column
m [ :> i
@ -212,7 +210,8 @@ TYPED:: matmul ( tensor1: tensor tensor2: tensor -- tensor3: tensor )
: ind-mults ( shape -- seq )
<reversed> 1 swap [ swap [ * ] keep ] map nip ;
! helper for transpose: given shape, flat index, & mults for the shape, gives nd index
! helper for transpose: given shape, flat index, & mults for
! the shape, gives nd index
: transpose-index ( i shape -- seq )
<reversed> [ /mod ] map reverse nip ;
PRIVATE>