为什么要用显卡挖虚拟货币?看完你就懂了 Why use a video card to dig virtual currency You’ll understand after reading it



为什么要用显卡挖虚拟货币?看完你就懂了

  近几个月来,包括比特币在内的各种虚拟货币大行其道,尤其是这个比特币更是如此,其单价甚至超过了10000元人民币,价格可以说跟乘着火箭差不多。导致的结果就是AMD的显卡被矿工们抢光,市场上的400系与500系显卡也基本被一扫而光。那么虚拟货币究竟是啥,为什么要用显卡尤其是AMD的显卡进行计算呢?
IT之家在这里做一个微小的科普,让大家以后看到比特币等虚拟货币的新闻不会再感到困惑。

啥是比特币(虚拟货币)?

要回答上述的提问,我们首先要知道什么是比特币?比特币(BitCoin)的概念最初由中本聪在2009年提出,根据中本聪的思路设计发布的开源软件以及建构其上的P2P网络。比特币是一种P2P形式的数字货币。点对点的传输意味着一个去中心化的支付系统。

从比特币的本质说起,比特币的本质其实就是一堆复杂算法所生成的特解。特解是指方程组所能得到无限个(其实比特币是有限个)解中的一组。而每一个特解都能解开方程并且是唯一的。

为什么要用显卡挖矿?

相比较于CPU的复杂运算,显卡使用的GPU进行的是通用计算。因此可以堆叠成百上千个流处理器,每一个流处理器就像是小小的CPU,虽然其运行复杂程序的能力远远没有CPU来的给力,但是架不住流处理器多,因此实际性能尤其是单精度浮点性能要比CPU强的多。

▲显卡的架构图,密密麻麻的就是流处理器

挖包括比特币之内的动作大家可以认为是利用显卡在做不断地通用计算,并且这个计算复杂度比较低而且相当重复,显卡使用的流处理器正好适合这样的算法。就像是不断地解方程组,显卡是2000位中学生,而CPU则是8名数学博士。虽然数学博士的数学知识远远超过中学生,但是像解虚拟货币这样的中等方程组的速度8名数学博士肯定不如2000名中学生来的快。

▲比特币挖矿机

因此大家一开始就使用显卡来挖掘虚拟货币。之后有人研究出特定的算法,让显卡的流处理器针对的虚拟货币特解进行大幅强化,这就是矿机的由来。

为什么AMD的显卡被矿工抢购?

和Nvidia的显卡相比,AMD的显卡在通用性能上具有比较大的优势,或者通俗来讲就是说流处理器多。普通消费者一般使用显卡主要是玩游戏,而玩游戏则需要显卡进行图形输出,其运算复杂度远超比特币这样的算数学解。因此实际游戏性能,相同定位的N卡和A卡是差不多的。

但是我们之前说到过,A卡由于流处理器多,因此对于获得虚拟货币这样的通用计算来讲十分地适合,获得特定解的速度也比N卡高的多,因此众多矿工如今大量抢购A卡来进行虚拟货币的运算以谋求利润。

当然随着Nvidia推出了Pascal架构的显卡,目前N卡在挖掘虚拟货币上的能力已经不像之前那样和A卡相差巨大。于是在目前A卡普遍缺货的情况下那些中端N卡也就成为矿工们退而求其次的选择。

矿卡有啥坏处?

最后说说为什么大家在淘二手卡的时候不能选择矿卡。由于矿工们挖矿比特币最重要的就是谋求利润。因此他们使用的显卡每时每刻都在运行和计算,其强度远甚于日常的游戏应用。或者说运行这样的计算一天,相当于我们普通人运行显卡一个月。

并且挖掘虚拟货币的场所基本都是多显卡聚集的地方,成千上万的显卡在一个房间内不断地运算,其发热量也是相当巨大的,而矿工们也不可能像普通消费者一样选择散热条件良好的机箱让热量能够顺利放出,这样子显卡还在高温条件下进行7*24小时的运算,更是加深了其老化程度。

如此所作所为导致的结果便是用来挖矿的显卡过早地损耗,如果购买的这些显卡,结果便是运行不稳定,重启等事情会不断发生。

而且目前厂商对于矿卡也是严格要求,比如说严禁二手买卖以及缩短保质期,如果用户购买了这些矿卡显卡,日后维修也将是一个不小的挑战。

希望通过这么一篇小小的文章来让大家明白为什么如今的AMD显卡如此紧俏,以后看新闻的时候能够有所了解。

Why use a video card to dig virtual currency? You’ll understand after reading it

 

In recent months, including a variety of virtual currency bitcoin, bitcoin is popular, especially the more so, the price even more than 10000 yuan, the price can be said to take a similar rocket. The result is that the AMD cards are miners robbed, 400 line and 500 line cards on the market are basically disappeared.

So what is the virtual currency? Why use the graphics card, especially the AMD graphics card to calculate? IT’s home here to do a small popular science, so that we will see later bitcoin and other virtual currency news will no longer be confused.

What is bitcoin (virtual currency)?

To answer these questions, we first need to know what bitcoin is The concept of bitcoin (BitCoin) was originally proposed by Zhong Cong in 2009. According to the idea of China, we design and publish open source software and build P2P network on it. Bitcoin is a digital currency in the form of P2P. Peer to peer transmission means a centralized payment system.

From the essence of bitcoin, the essence of bitcoin is actually a special solution generated by a complex algorithm. A special solution is a set of solutions that can be obtained by an infinite set of equations (in fact, a finite number of bitcoins). And every particular solution can solve the equation and is unique.

Why use graphics mining?

Compared to the complex operations of CPU, the GPU used by graphics cards is general-purpose computing. It can be stacked hundreds of processors, each stream processor is like small CPU, although its ability to run complex applications far from CPU to awesome, but JiaBuZhu stream processor, so the actual performance especially the single precision floating point performance is much better than CPU.

– chart graphics, the stream processor is dense

Including digging bitcoin within the action we can think is the use of graphics in constantly general calculation, and the computational complexity is relatively low and quite repetitive, stream processor is suitable for the use of graphics algorithm. It’s like solving equations, video cards are 2000 middle school students, and CPU is 8 math doctor. Although Dr math’s knowledge of mathematics is far superior to that of middle school students, the speed of the medium equations, such as the solution of virtual money, is certainly not as fast as that of 2000 middle school students in 8.

"Bitcoin mining machine

So people started using video cards to mine virtual currencies. Later, someone developed a specific algorithm, so that the graphics processor’s virtual currency for the special solution to substantially strengthen, and this is the origin of the mine.

Why was AMD’s video card being snapped up by miners?

Compared with Nvidia graphics cards, AMD graphics cards have a wide range of advantages in general performance, or, in general terms, more streaming processors. Ordinary consumers generally use graphics cards, mainly to play games, while playing games require graphics cards for graphics output, and its computing complexity is far more than the mathematical calculation of bitcoin. As a result, the actual game performance is about the same as the N card and the A card.

But we said before, because the A card processor, so to get virtual currency calculation so that in terms of very suitable, get the solution specific than N card number, so many miners now a large number of A cards for panic buying virtual currency operations to seek profits.

Of course, with the introduction of Pascal Nvidia graphics card, N card in the virtual currency on the current ability is not as before, and A card is a huge difference. Thus, in the current A card is generally out of stock, the middle end of the N card has become the miners retreated for second choice.

What’s the disadvantage of mine card?

Finally, why can’t you choose the mine card when you use the second-hand card?. The miners mining bitcoin is the most important thing is to seek profits. As a result, their graphics cards are running and computing at all times, far more powerful than their everyday game applications. Or to run such a computing day, equivalent to the average person running video cards for one month.

Mining and virtual currency are the basic premises of the multi card gathering place, tens of thousands of cards operation constantly in a room, the heat is quite large, but the miners is not like ordinary consumers as select chassis good cooling conditions that the heat can be released, 7*24 hours of operation like this the card is still under the condition of high temperature, also deepen the degree of aging.

So the doings is the result of loss to dig card prematurely, if buy these cards, the result is unstable, restart things will continue to happen.

And the current manufacturers for mine cards are also strict requirements, such as prohibited the sale of second-hand and shorten the shelf life, if the user purchased the mine card card, after the repair will be a challenge.

I hope that through such a small article to make you understand why today’s AMD card so tight, and later to see the news when you can understand.

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【少林寺无遮大会】少林寺无遮大会临近 记者探访“中华镖王”一睹绝技

  “中华镖王”杨正清出镖瞬间

  刚入行的福建小伙拔掉师兄们的飞镖十分困难

  多种飞镖

  据介绍,杨正清用铁钉打爆啤酒瓶的项目打破了世界吉尼斯纪录。

  杨正清的弟子正在备战无遮大会

  

  铁砂掌、二指禅、掌上飞刀、石锁竞技,传说中的少林绝技即将现身!7月29日至8月4日,嵩山少林寺将举办首届无遮大会,邀全球各路高手前来比武、论禅。届时,上述四项少林寺的看家功夫将逐一向世人显露真容。无遮大会临近之际,武林高手如何备战?继上周探访“铁掌大侠”之后,昨日大河报记者前往安徽宿州,一睹“中华镖王”的绝技。

  位于宿州的千镖堂内,客厅一面墙上挂满了各种国际、国内比赛的奖状以及多项吉尼斯世界纪录的证书。多年来,杨正清战绩辉煌,被称为“中华镖王”,他的弟子遍布天下。

  练功房内,各种飞刀、飞针等兵器、暗器一字排开。墙面上,大小形状不等的木头桩靶上,刀孔密如蜂窝。此时,杨正清正带领弟子们在练功房训练,持镖者在7米开外对准靶子不断飞射,动作连贯流畅,练的就是快和准。

  出身武术世家的杨正清17岁来到少林寺拜师学艺,他将学到的少林功夫与自家祖传的暗器功夫相结合,不断揣摩与改进,武功日益提高。离开少林寺后,杨正清继续四处拜访名师。除了传统飞镖暗器外,他还把筷子、钉子、螺丝刀、电焊条等日常生活用具当作武器练习使用。

  现场,杨正清向记者展示绝技。他手持一把飞刀,从7米、9米和11米三个距离投射,刀刀命中巴掌大的靶子。杨正清掷出的飞刀并不是平直命中目标,而是以旋转的姿态飞行。“保证飞刀击中靶子的瞬间刀头正好向前,对飞镖的控制极为重要,这需要多年的苦练。”杨正清说。

  随后,他还用飞钉穿透10米开外的大铁皮桶、用普通的木筷射穿铁盆……

  此次无遮大会,杨正清要担任裁判委员会委员,他从弟子中挑选了十几人报名参赛。

  【危险动作,请勿模仿!】

 

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【萨摩耶吃穷交警队】萨摩耶吃穷交警队不拿自己当外人

 

青岛交警上月捡到一只走丢的狗子,看它“乖乖的很让人心疼”,就带回了大队,等待主人来接。可一个月了,主人仍未出现,狗子吃光了蜀黍的饼干和排骨,每天吃饱睡、睡饱吃,简直是故意蹭吃蹭喝的!蜀黍们被吃穷了,现在全城寻主人!

 

狗狗走丢了,主人到处“求助”的新闻,想必大家都听说过。但是青岛这只萨摩耶,自己走丢了一个月,愣是没找到主人。

小萨摩刚被交警蜀黍带回来的时候,还是一脸乖巧听话,等待主人来接,交警蜀黍说,你现在咋就成这样了呢?主人把你遗忘到脑后了吧?

 

这只萨摩耶吃光了交警蜀黍们的排骨和饼干,喝光了交警的矿泉水。每天就是吃饱睡!睡饱吃!在大伙儿午睡的时候,用舌头舔醒了带他归队的警察蜀黍,让蜀黍带他下楼尿尿散步……完全不拿自己当外人。

感觉蜀黍们被它的饭量吓怕了!转眼间过去一个月了,狗子的主人依然没有出现,它现在被一名协警姐姐领回了家,不然整个交警队都要被它吃穷了……

萨摩耶的主人,交警蜀黍们都好忙哒!请你看到这条新闻速速现身!

其他养狗的市民,出门一定给你的宠物拴好绳子!不是每条走丢的狗,都能碰到好心的交警蜀黍。

 

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儿童网游暗藏“色魔”父母亲又如何看待?Children’s online maniac hidden parents and how to treat



儿童网游暗藏“色魔”父母亲又如何看待?

  未成年孩子缺乏自控力及分辨能力,很容易受到不正确的价值观引导。作为家长,要有意识地尽早对孩子普及两性方面的教育,男女生分别由父亲和母亲来进行正确的引导,“通俗点说就是,你不去说自然会有其他人说,而且方向不一定正确”。

【儿童网游暗藏“色魔”】近期,发生一件令人毛骨悚然的事情。据悉有人在东莞一小学学生微信群兜售淫秽视频心理专家称家长应尽早介入未成年人两性教育。12月19日晚,东莞市寮步镇的杨先生无意中发现,他10岁的儿子在微信上花20元买了10部小电影。而小电影内容竟然是淫秽视频。令他更为惊讶的是,孩子所在班级的其他微信群里,也有人以2元一部的价格向学生售卖黄色小电影。

  【儿童网游暗藏“色魔”】杨先生警惕心起,因为还有人用他的QQ向“小女孩”发了一条“可以了”的消息。杨先生猜想,正读三年级的儿子手机里也有他的QQ,或是儿子登录过他的QQ。于是,杨先生不动声色地拿起了儿子的手机,翻看儿子的QQ聊天记录才发现,“小女孩”竟给儿子发了10部黄色小电影,每部大小约100~300兆。“这两天我看到小孩老是盯着手机看,忘记了QQ密码还突然让我告诉他,并要求我往他微信转20元。我以为他发红包给同学,没想到是买这个。”杨先生说,儿子还以买玩具为由找舅舅要了300元,“幸好被我及时发现,不然真怕这些视频会影响到他一生。”

  【儿童网游暗藏“色魔”】在一款名为“小花仙”的儿童社交网络游戏中,有人以支付充值卡券的形式,引诱女童裸聊,甚至线下约见实施猥亵。“小花仙”是上海淘米网络科技有限公司于2010年推出的一款基于儿童虚拟社区的网络游戏,按照前的宣传,这款游戏主要面向6到14岁的女孩。游戏通过完成种花等任务或充值米卡等卡券,来给角色换装。除此之外,玩家还可以在游戏中与其他玩家互动、添加好友。而据爆料玩家反映,这种行为从2012年就已经在游戏平台上出现,6年来一直存在。

【儿童网游暗藏“色魔”】望此事件可以得到某些部门制止,父母亲能够尽到孩子第一任老师应该的责任和义务。

Children’s online "maniac" hidden parents and how to treat?

 

Young children lack self-control and resolution, and are easily guided by incorrect values. As a parent, should consciously as soon as possible for children of both sexes popularization education, male and female students respectively by father and mother to guide, "which is to say, you don’t say there will be other people say, but not necessarily the right direction".

[hidden] online child rapist recently, something happened with hair standing on end. It is reported that some people in Dongguan, a primary school students WeChat group peddling pornographic video, psychological experts said parents should intervene as soon as possible minor gender education. On the evening of December 19th, Mr. Yang, from Liaobu Town, Dongguan, discovered that his 10 year old son had spent 20 yuan on 10 small movies on WeChat. The content of the small movie turned out to be obscene. To his surprise, some other WeChat groups in the children’s class also sold small yellow movies to students at the price of $2.

[hidden] online child rapist Yang vigilance, because there are people with his QQ to the "little girl" was issued a "OK" message. Mr. Yang guessed that he was reading his son in grade three, and that his QQ was on his cell phone, or that his son had logged into his QQ. So, Mr. Yang quietly picked up his son’s cell phone, looked through his son’s QQ chat record, only to find that "little girl" gave his son sent 10 small yellow film, each size of about 100~300 trillion. "These two days, I saw the child always staring at the phone, forgot the QQ password, also suddenly let me tell him, and asked me to his WeChat to 20 yuan.". I thought he sent red envelopes to his classmates, but I didn’t expect to buy them." Mr. Yang said, the son also buy toys for uncle to 300 yuan, "fortunately, I found in time, otherwise, really afraid of these video will affect his life."."

[hidden] online child rapist in a "Flower Fairy" children games on social networks, people have to pay for prepaid card vouchers, to lure girls naked chat, and even the line with the implementation of indecency. "Little Fairy" is a network game based on children’s virtual community launched by Shanghai rice washing Network Technology Co., Ltd. in 2010. According to the previous publicity, this game is mainly for girls between 6 and 14 years old. The game changes the role by completing tasks such as gardening and recharging Mika and other coupons. In addition, the player can also interact with other players in the game and add friends. According to the news, players reflect, this behavior from 2012 has appeared on the game platform, 6 years has been there.

[hidden] online child rapist hope this event can get some departments to stop, parents can do to children first teachers should be the responsibility and obligation.

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中央军委举行晋升上将军衔仪式_[中央军委举行晋升]

 

晋衔仪式在庄严的国歌声中开始。中央军委副主席范长龙宣读了中央军委主席习近平签署的晋升上将军衔命令。中央军委副主席许其亮主持晋衔仪式。

 

 

这次晋升上将军衔的军官是:中部战区司令员韩卫国、陆军政治委员刘雷、空军政治委员于忠福、火箭军政治委员王家胜、战略支援部队司令员高津。

晋升上将军衔的5位军官军容严整、精神抖擞来到主席台前。习近平向他们颁发命令状,并同他们亲切握手,表示祝贺。佩戴了上将军衔肩章的5位军官向习近平敬礼,向参加仪式的全体同志敬礼,全场响起热烈的掌声。

晋衔仪式在嘹亮的军歌声中结束。随后,习近平等领导同志同晋升上将军衔的军官合影。

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