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feat: add c implementation of math/base/special/minmaxf
1 parent a53d505 commit b76cb64

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17 files changed

+1200
-34
lines changed

17 files changed

+1200
-34
lines changed

‎lib/node_modules/@stdlib/math/base/special/minmaxf/benchmark/benchmark.js

Lines changed: 14 additions & 13 deletions
Original file line numberDiff line numberDiff line change
@@ -21,10 +21,11 @@
2121
// MODULES //
2222

2323
var bench = require( '@stdlib/bench' );
24-
var randu = require( '@stdlib/random/base/randu' );
24+
var randu = require( '@stdlib/random/base/randn' );
25+
var isFloat32Array = require( '@stdlib/assert/is-float32array' );
2526
var isArray = require( '@stdlib/assert/is-array' );
26-
var min = require( '@stdlib/math/base/special/min' );
27-
var max = require( '@stdlib/math/base/special/max' );
27+
var minf = require( '@stdlib/math/base/special/minf' );
28+
var maxf = require( '@stdlib/math/base/special/maxf' );
2829
var float32Array = require( '@stdlib/array/float32' );
2930
var pkg = require( './../package.json' ).name;
3031
var minmaxf = require( './../lib' );
@@ -48,33 +49,31 @@ bench( pkg, function benchmark( b ) {
4849
}
4950
}
5051
b.toc();
51-
if ( !isArray( z ) ) {
52+
if ( !isFloat32Array( z ) ) {
5253
b.fail( 'should return an array' );
5354
}
5455
b.pass( 'benchmark finished' );
5556
b.end();
5657
});
5758

5859
bench( pkg+':assign', function benchmark( b ) {
59-
var out;
6060
var x;
6161
var y;
6262
var z;
6363
var i;
6464

65-
out = float32Array( 2 );
66-
65+
z = new float32Array( 2 );
6766
b.tic();
6867
for ( i = 0; i < b.iterations; i++ ) {
6968
x = ( randu()*1000.0 ) - 500.0;
7069
y = ( randu()*1000.0 ) - 500.0;
71-
z = minmaxf.assign( x, y, out, 1, 0 );
70+
z = minmaxf.assign( x, y, z, 1, 0 );
7271
if ( z.length !== 2 ) {
7372
b.fail( 'should have expected length' );
7473
}
7574
}
7675
b.toc();
77-
if ( !isArray( z ) ) {
76+
if ( !isFloat32Array( z ) ) {
7877
b.fail( 'should return an array' );
7978
}
8079
b.pass( 'benchmark finished' );
@@ -87,11 +86,13 @@ bench( pkg+'::min,max', function benchmark( b ) {
8786
var z;
8887
var i;
8988

89+
z = [];
90+
9091
b.tic();
9192
for ( i = 0; i < b.iterations; i++ ) {
9293
x = ( randu()*1000.0 ) - 500.0;
9394
y = ( randu()*1000.0 ) - 500.0;
94-
z = [ min( x, y ), max( x, y ) ];
95+
z = [ minf( x, y ), maxf( x, y ) ];
9596
if ( z.length !== 2 ) {
9697
b.fail( 'should have expected length' );
9798
}
@@ -110,14 +111,14 @@ bench( pkg+'::min,max,memory_reuse', function benchmark( b ) {
110111
var z;
111112
var i;
112113

113-
z = [ 0.0, 0.0 ];
114+
z = [];
114115

115116
b.tic();
116117
for ( i = 0; i < b.iterations; i++ ) {
117118
x = ( randu()*1000.0 ) - 500.0;
118119
y = ( randu()*1000.0 ) - 500.0;
119-
z[ 0 ] = min( x, y );
120-
z[ 1 ] = max( x, y );
120+
z[ 0 ] = minf( x, y );
121+
z[ 1 ] = maxf( x, y );
121122
if ( z.length !== 2 ) {
122123
b.fail( 'should have expected length' );
123124
}

‎lib/node_modules/@stdlib/math/base/special/minmaxf/benchmark/c/native/Makefile

Lines changed: 146 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,146 @@
1+
#/
2+
# @license Apache-2.0
3+
#
4+
# Copyright (c) 2024 The Stdlib Authors.
5+
#
6+
# Licensed under the Apache License, Version 2.0 (the "License");
7+
# you may not use this file except in compliance with the License.
8+
# You may obtain a copy of the License at
9+
#
10+
# http://www.apache.org/licenses/LICENSE-2.0
11+
#
12+
# Unless required by applicable law or agreed to in writing, software
13+
# distributed under the License is distributed on an "AS IS" BASIS,
14+
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15+
# See the License for the specific language governing permissions and
16+
# limitations under the License.
17+
#/
18+
19+
# VARIABLES #
20+
21+
ifndef VERBOSE
22+
QUIET := @
23+
else
24+
QUIET :=
25+
endif
26+
27+
# Determine the OS ([1][1], [2][2]).
28+
#
29+
# [1]: https://en.wikipedia.org/wiki/Uname#Examples
30+
# [2]: http://stackoverflow.com/a/27776822/2225624
31+
OS ?= $(shell uname)
32+
ifneq (, $(findstring MINGW,$(OS)))
33+
OS := WINNT
34+
else
35+
ifneq (, $(findstring MSYS,$(OS)))
36+
OS := WINNT
37+
else
38+
ifneq (, $(findstring CYGWIN,$(OS)))
39+
OS := WINNT
40+
else
41+
ifneq (, $(findstring Windows_NT,$(OS)))
42+
OS := WINNT
43+
endif
44+
endif
45+
endif
46+
endif
47+
48+
# Define the program used for compiling C source files:
49+
ifdef C_COMPILER
50+
CC := $(C_COMPILER)
51+
else
52+
CC := gcc
53+
endif
54+
55+
# Define the command-line options when compiling C files:
56+
CFLAGS ?= \
57+
-std=c99 \
58+
-O3 \
59+
-Wall \
60+
-pedantic
61+
62+
# Determine whether to generate position independent code ([1][1], [2][2]).
63+
#
64+
# [1]: https://gcc.gnu.org/onlinedocs/gcc/Code-Gen-Options.html#Code-Gen-Options
65+
# [2]: http://stackoverflow.com/questions/5311515/gcc-fpic-option
66+
ifeq ($(OS), WINNT)
67+
fPIC ?=
68+
else
69+
fPIC ?= -fPIC
70+
endif
71+
72+
# List of includes (e.g., `-I /foo/bar -I /beep/boop/include`):
73+
INCLUDE ?=
74+
75+
# List of source files:
76+
SOURCE_FILES ?=
77+
78+
# List of libraries (e.g., `-lopenblas -lpthread`):
79+
LIBRARIES ?=
80+
81+
# List of library paths (e.g., `-L /foo/bar -L /beep/boop`):
82+
LIBPATH ?=
83+
84+
# List of C targets:
85+
c_targets := benchmark.out
86+
87+
88+
# RULES #
89+
90+
#/
91+
# Compiles source files.
92+
#
93+
# @param {string} [C_COMPILER] - C compiler (e.g., `gcc`)
94+
# @param {string} [CFLAGS] - C compiler options
95+
# @param {(string|void)} [fPIC] - compiler flag determining whether to generate position independent code (e.g., `-fPIC`)
96+
# @param {string} [INCLUDE] - list of includes (e.g., `-I /foo/bar -I /beep/boop/include`)
97+
# @param {string} [SOURCE_FILES] - list of source files
98+
# @param {string} [LIBPATH] - list of library paths (e.g., `-L /foo/bar -L /beep/boop`)
99+
# @param {string} [LIBRARIES] - list of libraries (e.g., `-lopenblas -lpthread`)
100+
#
101+
# @example
102+
# make
103+
#
104+
# @example
105+
# make all
106+
#/
107+
all: $(c_targets)
108+
109+
.PHONY: all
110+
111+
#/
112+
# Compiles C source files.
113+
#
114+
# @private
115+
# @param {string} CC - C compiler (e.g., `gcc`)
116+
# @param {string} CFLAGS - C compiler options
117+
# @param {(string|void)} fPIC - compiler flag determining whether to generate position independent code (e.g., `-fPIC`)
118+
# @param {string} INCLUDE - list of includes (e.g., `-I /foo/bar`)
119+
# @param {string} SOURCE_FILES - list of source files
120+
# @param {string} LIBPATH - list of library paths (e.g., `-L /foo/bar`)
121+
# @param {string} LIBRARIES - list of libraries (e.g., `-lopenblas`)
122+
#/
123+
$(c_targets): %.out: %.c
124+
$(QUIET) $(CC) $(CFLAGS) $(fPIC) $(INCLUDE) -o $@ $(SOURCE_FILES) $< $(LIBPATH) -lm $(LIBRARIES)
125+
126+
#/
127+
# Runs compiled benchmarks.
128+
#
129+
# @example
130+
# make run
131+
#/
132+
run: $(c_targets)
133+
$(QUIET) ./$<
134+
135+
.PHONY: run
136+
137+
#/
138+
# Removes generated files.
139+
#
140+
# @example
141+
# make clean
142+
#/
143+
clean:
144+
$(QUIET) -rm -f *.o *.out
145+
146+
.PHONY: clean

‎lib/node_modules/@stdlib/math/base/special/minmaxf/benchmark/c/native/benchmark.c

Lines changed: 138 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,138 @@
1+
/**
2+
* @license Apache-2.0
3+
*
4+
* Copyright (c) 2024 The Stdlib Authors.
5+
*
6+
* Licensed under the Apache License, Version 2.0 (the "License");
7+
* you may not use this file except in compliance with the License.
8+
* You may obtain a copy of the License at
9+
*
10+
* http://www.apache.org/licenses/LICENSE-2.0
11+
*
12+
* Unless required by applicable law or agreed to in writing, software
13+
* distributed under the License is distributed on an "AS IS" BASIS,
14+
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15+
* See the License for the specific language governing permissions and
16+
* limitations under the License.
17+
*/
18+
19+
#include "stdlib/math/base/special/minmaxf.h"
20+
#include <stdlib.h>
21+
#include <stdio.h>
22+
#include <math.h>
23+
#include <time.h>
24+
#include <sys/time.h>
25+
26+
#define NAME "minmaxf"
27+
#define ITERATIONS 1000000
28+
#define REPEATS 3
29+
30+
/**
31+
* Prints the TAP version.
32+
*/
33+
static void print_version( void ) {
34+
printf( "TAP version 13\n" );
35+
}
36+
37+
/**
38+
* Prints the TAP summary.
39+
*
40+
* @param total total number of tests
41+
* @param passing total number of passing tests
42+
*/
43+
static void print_summary( int total, int passing ) {
44+
printf( "#\n" );
45+
printf( "1..%d\n", total ); // TAP plan
46+
printf( "# total %d\n", total );
47+
printf( "# pass %d\n", passing );
48+
printf( "#\n" );
49+
printf( "# ok\n" );
50+
}
51+
52+
/**
53+
* Prints benchmarks results.
54+
*
55+
* @param elapsed elapsed time in seconds
56+
*/
57+
static void print_results( double elapsed ) {
58+
double rate = (double)ITERATIONS / elapsed;
59+
printf( " ---\n" );
60+
printf( " iterations: %d\n", ITERATIONS );
61+
printf( " elapsed: %0.9f\n", elapsed );
62+
printf( " rate: %0.9f\n", rate );
63+
printf( " ...\n" );
64+
}
65+
66+
/**
67+
* Returns a clock time.
68+
*
69+
* @return clock time
70+
*/
71+
static double tic( void ) {
72+
struct timeval now;
73+
gettimeofday( &now, NULL );
74+
return (double)now.tv_sec + (double)now.tv_usec/1.0e6;
75+
}
76+
77+
/**
78+
* Generates a random number on the interval [0,1).
79+
*
80+
* @return random number
81+
*/
82+
static double rand_double( void ) {
83+
int r = rand();
84+
return (double)r / ( (double)RAND_MAX + 1.0 );
85+
}
86+
87+
/**
88+
* Runs a benchmark.
89+
*
90+
* @return elapsed time in seconds
91+
*/
92+
static double benchmark( void ) {
93+
double elapsed;
94+
float x1[ 100 ];
95+
float x2[ 100 ];
96+
float out[ 2 ];
97+
double t;
98+
int i;
99+
100+
for ( i = 0; i < 100; i++ ) {
101+
x1[ i ] = ( rand_double()*1000.0 ) - 500.0;
102+
x2[ i ] = ( rand_double()*1000.0 ) - 500.0;
103+
}
104+
105+
t = tic();
106+
for ( i = 0; i < ITERATIONS; i++ ) {
107+
stdlib_base_minmaxf( x1[ i % 100 ], x2[ i % 100 ], out );
108+
if ( out[ 0 ] != out[ 0 ] || out[ 1 ] != out[ 1 ] ) {
109+
printf( "should not return NaN\n" );
110+
break;
111+
}
112+
}
113+
elapsed = tic() - t;
114+
if ( out[ 0 ] != out[ 0 ] || out[ 1 ] != out[ 1 ] ) {
115+
printf( "should not return NaN\n" );
116+
}
117+
return elapsed;
118+
}
119+
120+
/**
121+
* Main execution sequence.
122+
*/
123+
int main( void ) {
124+
double elapsed;
125+
int i;
126+
127+
// Use the current time to seed the random number generator:
128+
srand( time( NULL ) );
129+
130+
print_version();
131+
for ( i = 0; i < REPEATS; i++ ) {
132+
printf( "# c::native::%s\n", NAME );
133+
elapsed = benchmark();
134+
print_results( elapsed );
135+
printf( "ok %d benchmark finished\n", i+1 );
136+
}
137+
print_summary( REPEATS, REPEATS );
138+
}

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