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pit math.matrices and math.matrices.simd against each other in calculating matrix exponentials

db4
Joe Groff 2009-09-30 12:58:32 -05:00
parent 3c51312987
commit a2771aa166
3 changed files with 56 additions and 1 deletions
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24
extra/benchmark/matrix-exponential-scalar/matrix-exponential-scalar.factor Normal file
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@ -0,0 +1,24 @@
USING: locals math math.combinatorics math.matrices
prettyprint sequences typed ;
IN: benchmark.matrix-exponential-scalar
:: e^m ( m iterations -- e^m )
{
{ 0.0 0.0 0.0 0.0 }
{ 0.0 0.0 0.0 0.0 }
{ 0.0 0.0 0.0 0.0 }
{ 0.0 0.0 0.0 0.0 }
}
iterations iota [| i |
m i m^n i factorial >float m/n m+
] each ;
:: matrix-e ( -- )
f :> result!
4 identity-matrix :> i4
10000 [
i4 20 e^m result!
] times
result . ;
MAIN: matrix-e

18
extra/benchmark/matrix-exponential-simd/matrix-exponential-simd.factor Normal file
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USING: locals math math.combinatorics math.matrices.simd
prettyprint sequences typed ;
IN: benchmark.matrix-exponential-simd
TYPED:: e^m4 ( m: matrix4 iterations: fixnum -- e^m: matrix4 )
zero-matrix4
iterations iota [| i |
m i m4^n i factorial >float m4/n m4+
] each ;
:: matrix-e ( -- )
f :> result!
10000 [
identity-matrix4 20 e^m4 result!
] times
result . ;
MAIN: matrix-e

15
extra/math/matrices/simd/simd.factor
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@ -1,6 +1,6 @@
! (c)Joe Groff bsd license
USING: accessors classes.struct generalizations kernel locals
math math.functions math.matrices.simd math.vectors
math math.combinatorics math.functions math.matrices.simd math.vectors
math.vectors.simd sequences sequences.private specialized-arrays
typed ;
QUALIFIED-WITH: alien.c-types c
@ -105,6 +105,19 @@ CONSTANT: identity-matrix4
}
}
CONSTANT: zero-matrix4
S{ matrix4 f
float-4-array{
float-4{ 0.0 0.0 0.0 0.0 }
float-4{ 0.0 0.0 0.0 0.0 }
float-4{ 0.0 0.0 0.0 0.0 }
float-4{ 0.0 0.0 0.0 0.0 }
}
}
TYPED:: m4^n ( m: matrix4 n: fixnum -- m^n: matrix4 )
identity-matrix4 n [ m m4. ] times ;
TYPED:: scale-matrix4 ( factors: float-4 -- matrix: matrix4 )
matrix4 (struct) :> c