1 USING: accessors alien alien.c-types alien.complex alien.data
2 ascii byte-arrays combinators.short-circuit functors kernel math
3 math.blas.ffi math.order parser prettyprint.custom sequences
5 FROM: alien.c-types => float ;
6 SPECIALIZED-ARRAY: float
7 SPECIALIZED-ARRAY: double
8 SPECIALIZED-ARRAY: complex-float
9 SPECIALIZED-ARRAY: complex-double
12 TUPLE: blas-vector-base underlying length inc ;
14 INSTANCE: blas-vector-base virtual-sequence
16 GENERIC: element-type ( v -- type )
18 GENERIC: n*V+V! ( alpha x y -- y=alpha*x+y )
19 GENERIC: n*V! ( alpha x -- x=alpha*x )
20 GENERIC: V. ( x y -- x.y )
21 GENERIC: V.conj ( x y -- xconj.y )
22 GENERIC: Vnorm ( x -- norm )
23 GENERIC: Vasum ( x -- sum )
24 GENERIC: Vswap ( x y -- x=y y=x )
25 GENERIC: Viamax ( x -- max-i )
29 GENERIC: (blas-vector-like) ( data length inc exemplar -- vector )
31 GENERIC: (blas-direct-array) ( blas-vector -- direct-array )
33 : shorter-length ( v1 v2 -- length )
34 [ length>> ] bi@ min ; inline
35 : data-and-inc ( v -- data inc )
36 [ ] [ inc>> ] bi ; inline
37 : datas-and-incs ( v1 v2 -- v1-data v1-inc v2-data v2-inc )
38 [ data-and-inc ] bi@ ; inline
41 ( v element-size -- length v-data v-inc v-dest-data v-dest-inc
42 copy-data copy-length copy-inc )
43 v [ length>> ] [ data-and-inc ] bi
44 v length>> element-size * <byte-array>
49 ( v1 v2 -- length v1-data v1-inc v2-data v2-inc
51 [ shorter-length ] [ datas-and-incs ] [ ] 2tri ;
54 ( n v1 v2 -- length n v1-data v1-inc v2-data v2-inc
62 ( n v -- length n v-data v-inc
69 : (prepare-dot) ( v1 v2 -- length v1-data v1-inc v2-data v2-inc )
70 [ shorter-length ] [ datas-and-incs ] 2bi ;
72 : (prepare-nrm2) ( v -- length data inc )
73 [ length>> ] [ data-and-inc ] bi ;
77 : n*V+V ( alpha x y -- alpha*x+y ) clone n*V+V! ; inline
78 : n*V ( alpha x -- alpha*x ) clone n*V! ; inline
81 1.0 x y n*V+V ; inline
83 -1.0 y x n*V+V ; inline
86 -1.0 swap n*V ; inline
88 : V*n ( x alpha -- x*alpha )
90 : V/n ( x alpha -- x/alpha )
91 recip swap n*V ; inline
94 [ Viamax ] keep nth ; inline
96 :: Vsub ( v start length -- sub )
97 v inc>> start * v element-type heap-size *
98 v underlying>> <displaced-alien>
99 length v inc>> v (blas-vector-like) ;
101 : <zero-vector> ( exemplar -- zero )
102 [ element-type heap-size <byte-array> ]
104 [ (blas-vector-like) ] tri ;
106 : <empty-vector> ( length exemplar -- vector )
107 [ element-type heap-size * <byte-array> ]
111 M: blas-vector-base equal?
117 M: blas-vector-base length
119 M: blas-vector-base virtual-exemplar
120 (blas-direct-array) ;
121 M: blas-vector-base virtual@
122 [ inc>> * ] [ nip (blas-direct-array) ] 2bi ;
124 : float>arg ( f -- f ) ; inline
125 : double>arg ( f -- f ) ; inline
126 : arg>float ( f -- f ) ; inline
127 : arg>double ( f -- f ) ; inline
131 <FUNCTOR: (define-blas-vector) ( TYPE T -- )
133 <DIRECT-ARRAY> IS <direct-${TYPE}-array>
138 VECTOR DEFINES-CLASS ${TYPE}-blas-vector
139 <VECTOR> DEFINES <${TYPE}-blas-vector>
140 >VECTOR DEFINES >${TYPE}-blas-vector
144 XVECTOR{ DEFINES ${t}vector{
151 TUPLE: VECTOR < blas-vector-base ;
152 : <VECTOR> ( underlying length inc -- vector ) VECTOR boa ; inline
154 : >VECTOR ( seq -- v )
155 [ TYPE >c-array underlying>> ] [ length ] bi 1 <VECTOR> ;
158 TYPE heap-size (prepare-copy)
159 [ XCOPY ] 3dip <VECTOR> ;
161 M: VECTOR element-type
164 (prepare-swap) [ XSWAP ] 2dip ;
166 (prepare-nrm2) IXAMAX 1 - ;
168 M: VECTOR (blas-vector-like)
171 M: VECTOR (blas-direct-array)
173 [ [ length>> ] [ inc>> ] bi * ] bi
177 (prepare-axpy) [ XAXPY ] dip ;
179 (prepare-scal) [ XSCAL ] dip ;
181 SYNTAX: XVECTOR{ \ } [ >VECTOR ] parse-literal ;
183 M: VECTOR pprint-delims
184 drop \ XVECTOR{ \ } ;
189 <FUNCTOR: (define-real-blas-vector) ( TYPE T -- )
191 VECTOR IS ${TYPE}-blas-vector
203 (prepare-nrm2) XNRM2 ;
205 (prepare-nrm2) XASUM ;
210 <FUNCTOR: (define-complex-blas-vector) ( TYPE C S -- )
212 VECTOR IS ${TYPE}-blas-vector
215 XXNRM2 IS ${S}${C}NRM2
216 XXASUM IS ${S}${C}ASUM
221 (prepare-dot) XDOTU ;
223 (prepare-dot) XDOTC ;
225 (prepare-nrm2) XXNRM2 ;
227 (prepare-nrm2) XXASUM ;
232 : define-real-blas-vector ( TYPE T -- )
233 [ (define-blas-vector) ]
234 [ (define-real-blas-vector) ] 2bi ;
235 : define-complex-blas-vector ( TYPE C S -- )
236 [ drop (define-blas-vector) ]
237 [ (define-complex-blas-vector) ] 3bi ;
239 float "S" define-real-blas-vector
240 double "D" define-real-blas-vector
241 complex-float "C" "S" define-complex-blas-vector
242 complex-double "Z" "D" define-complex-blas-vector
246 M: blas-vector-base >pprint-sequence ;
247 M: blas-vector-base pprint* pprint-object ;