huang zuxing blog @ home the quieter you become, the more you are able to hear.

11Feb/17Off

速度

出现想法?OK,下一秒立刻去做!

出现问题?OK,下一秒立刻解决!

出现更优方案?OK,下一秒立刻敲代码进行产品迭代!

对,就是下一秒,甚至连下下一秒、下下下一秒都是晚的。

决定人生高度的从来不是做事的完美程度,而是做事的速度。

Filed under: life Comments Off
3Jan/17Off

“听我的”, 服务的转变

N年前一个朋友在我家人面前描述他的工作内容,在总结时说“我是权威,我说了算”。当时我淡淡一笑而过。(心里在问,你的客户,你的学生,同意你的东西吗?)

去年2016在法国,到了一家全是盲人服务员的米其林三星餐馆吃晚饭,我们没有菜谱选择,餐厅没有灯光,全黑。坐下来,手摸到餐具;食物上来就吃,你看不见你将要吃到什么,只有到了嘴里,慢慢品尝,才知食材是什么,或者也有部分你吃不出它是什么。

如同那些私人私家菜馆,你去吃饭前,你不知厨师准备了什么,直到上菜后。大多数客人用好奇心去吃,满意而归。

也如同苹果手机,开始它不会问你需要什么功能,你买来用就行。(那么多人喜欢它)

同样现在罗振宇的节目逻辑思维,跨年演讲,如同文化的私房菜,听之前,你不需要知道他要讲什么,来听就行,包管你能得到或品尝到一些不同的文化信息,然后可能还想听下一场。

这些模式,要成功,就需要服务的提供者的诚信,努力,辛勤劳作。

此文就是记录描述一下,“听我的” 这种服务。(用这种服务时,我们求知探索, 但我们也不要放弃自己的判断。)

1Jan/17Off

老罗2016跨年演讲

没有看完全部,陆陆续续听了一些,一会看跨年演唱,一会听他的演讲,摘录了些小节:

  1. 份额不重要, 时间才重要
  2. 提高生活品质,就是要定期扔东西
  3.  二八法则
  4. 注重细节
  5. 人工智能,和大数据
  6. 什么工作不会给淘汰:领导和创造

深有同感,建议再听一遍。

改变我们生活的东西,比如自动驾驶车在新加坡((图片摘自网上):

huangzx.net

huangzx.net

C9KRRNHO0AI20009

huangzx.net

 

 

 

2016年的最后一天:

IMG_20161231_225132 IMG_20161231_211122

 

28Dec/16Off

回顾2016足迹

3月欧洲

huangzx.net

huangzx.net

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4月澳门

huangzx.net

huangzx.net

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6月北京

beijing

huangzx.net

 

 

9月上海乌镇

wuzhen

huangzx.net

 

 

 

12月广州

guangzhou

huangzx.net

 

guangzhou1

huangzx.net

 

17Oct/16Off

Our cluster daily job throughput

After merged a few pools into a single cluster, daily job number throughput, average is around 150K.

image

Filed under: eda, IT Comments Off
17Oct/16Off

disable ssh/scp , configure freenx login only

Friend asked how to disable users ssh or scp to the machine which has freenx installed .   only allow users nxclient login.

1. enable access.so in /etc/pam.d/system-auth

access.so

 

 

 

 

 

2. configure /etc/security/access.conf ( please read this file,  follow the format)

below is a simple one, only allow user mike nxclient login; and allow user jackie ssh from 192.168.10.0/24

+ : root : ALL
+: jackie:192.168.10.0/24
+:mike:localhost
+:mike:localhost.localdomain
+ : nx : ALL
- : ALL : ALL

 

Filed under: IT Comments Off
16Aug/16Off

7

IMAG3069

放学了

IMAG3161

小牛

6Jun/16Off

free_slot

In case EDA people search those key words,  I might help to answer the questions.

Since 2006, we use below concepts:

free_slot = total compute node cpu number in cluster

calibre_slot = calibre remote cpu number

tflex_slot =  brion tflex remote leaf cpu number

$oreng file , A signal in calibre host runfile

lsf_linux, tapeout_tflex , our scripts to submit mentor graphic calibre jobs and tflex jobs.

with this kind of concept, we can make sure EDA applications which use master and slave compute concept have enough cpu/licenses to run jobs.

20May/16Off

520

高山仰止,景行行止.
虽不能至,然心向往之.

duanduan1 duanduan2 duanduan3 duanduan4 fish fish1
friend me mygirls tongtong1

26Apr/16Off

vsftpd and filezilla

After upgrade filezilla client version to 3.1.0 above,  user face error message:

received tls alert from the server handshake failed (40)

found filezilla refuses to support cipher rc4.

in vsftpd.conf add below:

ssl_ciphers=HIGH

restart vsftpd, issue solved.

 

 

6Mar/16Off

images

2012_with_daughter FB_IMG_1457140170884 IMAG5557 IMAG5640 IMAG5665 mmexport1457184425947_2

10Feb/16Off

猴年到来

IMAG4275 IMAG4856-COLLAGE IMAG4857 IMAG5154 IMAG5196 IMG-20160130-WA0031 IMG-20160209-WA0011

31Dec/15Off

2015 pic

IMAG1519 IMAG1520 IMAG1521 IMAG1523 IMAG1524 IMAG1525 IMAG1526 IMAG1968 IMAG1969 IMAG1970 IMAG1971 IMAG1972 IMAG1973 IMAG2752 IMAG2753 IMAG2754 IMAG2755 IMAG3564

31Dec/15Off

2015 ending

2015 流水账:

4月,基本在医院陪孩子她娘。

5月和6月,陪我闺女们,4月基本没和她们在一起,全靠她们Yaya了。

7月,小latio跑了17万公里。也去了江湖论剑的地方:)

8月,订了大众途安柴油版。

9月,提车:)

IMAG1094

 

 

 

 

 

 

 

 

 

10月,11月,完成华为集群。

IMAG2569

 

 

 

 

 

IMAG2730

 

 

 

 

 

12月,楚楚和幼儿园说再见。全家回村陪我爹娘。

 

对朋友说:

世界那么大,我们那么近。

同学们在微信聚会,在橙地聚会,在农家乐聚会,互相打气,欢乐的一年。

 对同事们说:

坚持做对公司有利的事,愉快工作和生活。

对孩子她娘说:

多休息,多陪闺女们。你是最勇敢的娘。

 

2015最喜欢的电视节目:成语大会

2015最喜欢的电影是:Peanuts Movie “Charlie Brown And Snoopy” ; 因为和我闺女们看的。

2015最喜欢的食物是:新疆柳枝羊肉串。

2015倒数看: 江苏卫视。

 

 

 

Tagged as: , Comments Off
9Nov/15Off

eda-cost-savers, doc from teraproc

Original doc on http://www.teraproc.com/teraproc-blog/eda-cost-savers/

Ten ways to reduce the cost of your EDA infrastructure

3Nov/15Off

扎克伯格:无论做什么,使命是最重要的

copy from: http://mp.weixin.qq.com/s?__biz=MjM5NzMwNzM0Mg==&mid=400221775&idx=1&sn=1ec38c30754f3eb9f596492f84df53a4&scene=2&srcid=1028awiTfBHQNiOFLGLU7ECR&from=timeline&isappinstalled=0#rd

清华是个非常好的大学;这里的学生们正在创造很多重要和创新的东西;你们是未来科技、商业、政府和其他行业的领导者。

今天我想讨论改变世界的话题。很多人会说你怎么创立企业,或怎么解决问题。但是,今天我想要讨论一个不一样的问题。不是“怎么去创立”,而是“为什么创立”。这就是使命的本质。

15Aug/15Off

ChuChu 6 year old birthday

Loading Images
wpif2_loading
IMAG0593
IMAG0600
IMAG0608
IMAG0612
IMAG0629
IMAG0636
IMAG0664
14Aug/15Off

clean those 10+ years cables, improve air flow.

IMAG0460

8Aug/15Off

35

20140923044913583

18Jun/15Off

debug standalone samba server 3.6.9 on redhat 6.4 with ldap auth

in smb.conf, set log level to 7 , restart samba service.

use client to map share folders,  check the log,  found below related errors:

5Jun/15Off

十年

一个好人,辛辛苦苦做了接近十年,离开我们; 他是一个做得了事,吃得了亏,负得了责的人才。

他做了那么多,我是珍惜和欣赏他的人,可有人不啊。

马云说的还是经典:做得不开心或钱少,就是辞职的理由。

wpid-img-20150605-wa0017.jpg

26May/15Off

iPad images 2014

Filed under: life Comments Off
26May/15Off

head [wp-flowplus]

Loading Images
wpif2_loading
containment
Head_1416031377649.7
IMAG6961
IMAG6962 (1)

IMAG6961 IMAG6962 (1) Head_1416031377649.7 containment

Filed under: life Comments Off
24May/15Off

Dear chuchu

Loading Images
wpif2_loading
wpid-img-20150516-wa0004.jpg
wpid-img-20150320-wa0009.jpg
wpid-imag6851.jpg
wpid-cloud-content-7103f005-1378050258468.jpg.jpeg
wpid-img-20150120-wa0012.jpg
24May/15Off

往事随风

Loading Images
wpif2_loading
wpid-mmexport1421799812055.jpg
wpid-mmexport1421799804316.jpg
wpid-mmexport1426386111245.jpg
wpid-mmexport1426383728806.jpg
wpid-mmexport1426384871645.jpg
23May/15Off

Dear tongtong

image

23May/15Off

back online

My Acer 720 PC had serviced us 4 years and failed to power-on on earlier of 2015( power supply failed).

Booked new machine and busy for a few months, today got time to set it up .

 

Filed under: life Comments Off
31Dec/14Off

20141231

在看台北的跨年演唱会。

记录一下今年的流水帐:

出行篇:

  • 4月回家过清明;
  • 6月回家吃荔枝;
  • 9月魔都上海;
  • 12月带老的,小的回家;
  • 12月带老大访锦官城;

家人篇:

  • 老大P1,也开始练习钢琴;
  • 老二不怕老师了,聪明伶俐;
  • 老三冬天也不盖被子,欺负姐姐是常事;
  • 和老婆结婚十年,老婆还是很cute;

工作篇:

  • 完成两个大的机群;
  • 完成RDHx系统;
  • 继续减少PUE;

2015展望篇:

  • 多看书
  • 多锻炼身体
  • 多陪女儿老婆
  • 有机会就回家陪爹娘
Filed under: life Comments Off
1Dec/14Off

This is the final how it looks like

rack_cable

23Nov/14Off

HP Apollo 6000 (2014)

After deployed HP Apollo 6000, like to high light below limitation as HP sale team  didn't mention those before :

1.  Putting 4 or 5 switches in the middle of rack is not a good idea,  hot air come out from the middle of rack and suck into top level chassis, hot spot creates ;  recommend to put switch on top of rack: [ updated this on 12/Dec/2014, at the end after read HP doc by ourselves, we found HP network team sent us the wrong fan model, which push hot air to front cold aisle although we have set fan direction " power to port" , after replaced the fan with correct model, no more such issue.]

17186-019a-Door-off-lo-res_apollo6000 IMAG3180_apollo_heatp

2.  APM reports node power wrongly, in the max load,  it reports every compute node uses 170w+ ; total 140 nodes  x 170w  = 23.8kw , but the actual is,  total whole rack , 140 nodes  use power 13kw only .

Apollo_APM_power_report1 Apollo_APM_total_power_report

 

3.  Power shelf limitation:  for PSU,  it is  N+N;  but if the AC to DC board is failed, all chassis which use this power shelf  will be power off,  each power shelf could connect 6 chassis, the impact is huge  .

001zu03_apollo_power

 

4.  Each Chassis has 5  fan modules, each  module has 2 fans; if one of module is down, whole chassis will be down.  if one of 10 fans is down,  to replace the fan module, engineer must put in new module within 60 seconds after remove the faulty fan module.  if not , the whole chassis might be down.