Hiroshi Watanabe kaityo256

🤖

I, Robot

Researcher, programmer

kaityo256 / sstest.cc

Created November 6, 2015 06:19

benchmark for std::stringstream

	//----------------------------------------------------------------------
	#include <iostream>
	#include <string>
	#include <sstream>
	#include <vector>
	#include <random>
	#include <sys/time.h>
	//----------------------------------------------------------------------
	std::uniform_int_distribution<> rand9(0, 9);
	const int TRIAL = 500000;

kaityo256 / sstest2.cc

Created November 6, 2015 08:58

benchmark for std::stringstream

kaityo256 / diag.rb

Created November 10, 2015 07:34

clangの警告オプション一覧表示スクリプト ref: http://qiita.com/kaityo256/items/a2ea1474973cd938c50c

kaityo256 / modelname.cc

Created March 24, 2016 09:54

puts modelname of cpu with cpuid

	//------------------------------------------------------------------------
	#include <stdio.h>
	#include <stdint.h>
	#include <string.h>
	#include <stdarg.h>
	//------------------------------------------------------------------------
	void
	cpuid(uint32_t v, uint32_t &a, uint32_t &b, uint32_t &c, uint32_t &d){
	uint32_t eax, ebx, ecx, edx;
	asm("nop" :: "a" (v));

kaityo256 / file0.txt

Created April 25, 2016 09:45

HTMLの孤島発見スクリプト ref: http://qiita.com/kaityo256/items/320e31f1200f73706cea

	$ cd public_html
	$ ruby linkchecker.rb
	/path/to/public_html/foo.html is isolated.
	/path/to/public_html/bar.html is isolated.

kaityo256 / show_mnist.py

Created October 11, 2016 10:21

MNISTのデータを可視化するサンプル

	import chainer
	import argparse

	parser = argparse.ArgumentParser()
	parser.add_argument('--number', '-n', type=int, default=0, help='')
	args = parser.parse_args()
	n = args.number
	train, test = chainer.datasets.get_mnist()
	s = 28
	print test[n][1]

kaityo256 / export.py

Created October 17, 2016 10:10

Chainerで学習したモデルをC++で読み込む ref: http://qiita.com/kaityo256/items/f1e2c8e38cbf8ffd8c09

	from __future__ import print_function
	import struct
	import numpy as np
	import chainer
	import chainer.functions as F
	import chainer.links as L
	from chainer import training
	from chainer.training import extensions

	# Network definition

kaityo256 / test.cpp

Last active October 18, 2016 01:18

LJの力計算を組み込み関数で書いて馬鹿SIMD化 ref: http://qiita.com/kaityo256/items/bf10fdb0f90809e3d2bf

	//------------------------------------------------------------------------
	#include <immintrin.h>
	#include <stdio.h>
	//------------------------------------------------------------------------
	enum {X, Y, Z};
	const int N = 20000;
	const double dt = 0.01;
	double __attribute__((aligned(32))) q[N][4] = {};
	double __attribute__((aligned(32))) p[N][4] = {};
	double __attribute__((aligned(32))) c24[4] = {24 * dt, 24 * dt, 24 * dt, 24 * dt};

kaityo256 / pack.cpp

Last active June 6, 2019 09:54

pack data using AVX-512

	/*
	# Copyright H. Watanabe 2017
	# Distributed under the Boost Software License, Version 1.0.
	# (See accompanying file LICENSE_1_0.txt or copy at
	# http://www.boost.org/LICENSE_1_0.txt)
	*/
	//------------------------------------------------------------------------
	#include <x86intrin.h>
	#include <immintrin.h>
	#include <iostream>

kaityo256 / test.cpp

Created February 27, 2017 03:21

Sample code using vpternlogd (AVX-512)

	/*
	# Copyright H. Watanabe 2017
	# Distributed under the Boost Software License, Version 1.0.
	# (See accompanying file LICENSE_1_0.txt or copy at
	# http://www.boost.org/LICENSE_1_0.txt)
	*/
	//------------------------------------------------------------------------
	#include <immintrin.h>
	#include <iostream>
	#include <stdio.h>