s*********D
发帖数: 201 | 1 如果看过Jimmy Kimmel脱口秀的一个介绍性节目(好象是几年前), 便知,脱口秀事前,
是有剧本的.
其中一个白女Writer, 成了他的妻子. |
|
f**********y
发帖数: 230 | 2 【 以下文字转载自 JobHunting 讨论区 】
发信人: flyingbeauty (qualcommgirl), 信区: JobHunting
标 题: 谁能推荐一个read-writer lock的C++实现？
发信站: BBS 未名空间站 (Wed Mar 5 14:16:58 2008)
请问谁能推荐一个通过基本mutex来实现的read-writer lock？
最好是C++。
wiki上面的太简单了。Google了很久也没有答案。。。 |
|
c*****t
发帖数: 1879 | 3 建议你买本
"Foundations of Multithreaded, Paralle, and Distributed Programming"
基本上这辈子不用再为这类问题发愁。基本所有的常见问题都有 C/java/pseudo
code 。抄一下就是了。
对于 reader / writer 的问题，最佳解法的 pseudo code 是
int nr = 0; // number of readers
semaphore rw = 1;
semaphore mutexR = 1;
reader ()
{
P (mutexR);
++nr;
if (nr == 1)
P (rw);
V (mutexR);
... critical section code
P (mutexR);
--nr;
if (nr == 0)
V (rw);
V (mutexR);
}
writer ()
{
P (rw);
... critical section code
V (rw);
}
如果没有 sema |
|
n***g
发帖数: 12 | 4 A world leading pharmaceutical company is currently recruiting a Regulatory
Medical Writer based in Beijing, China (JD as below). Fresh Biology Ph.D is
welcomed if you want to explore opportunities other than doing bench work.
If you are interested, CV can be sent to [email protected]
POSITION SUMMARY
As an integral part of the clinical team, medical writer in the ×× group
of China R&D center ensures the quality, compliance with internal and
external standards, and timely production of both... 阅读全帖 |
|
h********g
发帖数: 145 | 5 One of my letter writer, a Ph.D., was asking me for some bullet points he
should cover in his recommendation letter, because he thinks this letter
should be different from the academic LoR.
Could anybody here list the points you have provided to your writer?
from ECFMG site: "Your letters should give the residency program director a
clear picture of your skills and clinical ability, in addition to your
personal characteristics such as professionalism, leadership, and
interpersonal skills both in |
|
k*****n
发帖数: 7 | 6 From ECFMG: It is suggested that applicants only use LoRs containing writers
' contact information because programs may contact letter writers to ask
about the candidate.
How often does this happen? Just curious. |
|
e*****a
发帖数: 1334 | 7 No statistical data available for this. If a program is serious about the
candidate, they could call the letter writers to find out more information.
During interviews I found that many PDs/Committee members know my advisor/
letter writers and it's very natural for them to have some kind of
communications. |
|
s******r
发帖数: 4 | 8 我本来在一个药厂做clinical programmer, 我的主管，也是biostatistican背景，被调到medical writing部门当主管了。我想想其实我是生物转的统计，现在生物那块完
全没用上也挺可惜的，就问他我能不能当medical writer. 我也想听一下版上各位老大的意见，这两个职业如何。我们公司medical writer工作主要是出 clinical study report. |
|
|
w*******y
发帖数: 60932 | 10 frys has SIIG USB 2.0 memory card reader/writer for digital cameras, smart
phones and other devices using flash memory cards:
http://www.frys.com/product/6044668
for $8 - $8 Rebate:
http://images.frys.com/art/rebates_pdf/6044668.123110.pdf
= $0 Free AR either choose in store pickup to save on shipping or pay $1.
99 for shipping.
Detailed Description
* USB 2.0 Plug and Play
* Super slim design, all-in-one card reader/writer - only 8mm thick
* Two LED indicators ... 阅读全帖 |
|
w*******y
发帖数: 60932 | 11 Iogear GFR204SD SD/MicroSD/MMC Card Reader/Writer, SDXC Support $3.99 f/s
Link:
http://www.mwave.com/mwave/SKUSearch.asp?px=DS&scriteria=AA9933
Description:
Secure Digital cards are ubiquitous in consumer electronic devices and have
become the dominant means of storing several gigabytes of data in a small
form factor. This new device is extremely compact but big on compatibility
within the SD memory card family. The unit supports the very latest in
memory card format, SDXC (Secure Digital Exten... 阅读全帖 |
|
|
p********r
发帖数: 47 | 13 【 以下文字转载自 RisingChina 讨论区 】
发信人: Propagator ((家)), 信区: RisingChina
标 题: popular blog by a Tibetan writer in Beijing
发信站: BBS 未名空间站 (Wed May 7 14:46:57 2008), 站内
http://woeser.middle-way.net/ |
|
b*****d
发帖数: 61690 | 14 A "Saturday Night Live" writer has been suspended over a joke she tweeted
about President Trump's 10-year-old son, according to a report.
In a since-deleted tweet, Katie Rich wrote that Barron Trump "would be this
country's first homeschool shooter."
The backlash on social media was swift, and NBC quickly suspended Rich,
according to TVGuide.com, who has been with the program since 2013.
Rich apologized Monday afternoon. |
|
D**s
发帖数: 6361 | 15 作弊自作孽，骂trump合法，骂未成年是非法的
这条法律是作弊强烈推荐的
[在 brihand (brihand) 的大作中提到：]
:A "Saturday Night Live" writer has been suspended over a joke she
tweeted
:about President Trump's 10-year-old son, according to a report.
:In a since-deleted tweet, Katie Rich wrote that Barron Trump "would be
this country's first homeschool shooter."
:The backlash on social media was swift, and NBC quickly suspended Rich,
:according to TVGuide.com, who has been with the program since 2013.
:Rich apologized Mon... 阅读全帖 |
|
f***x
发帖数: 1524 | 16 我想出售的物品:
DYMO Label Writer Twin Turbo Label P*****[email protected]
单张面值:
可接受的价格(必须明码标价！):
邮寄方式要求:
YL
买卖双方谁承担邮寄损失(Required if not code only):
付款方式说明:
paypal
其他补充说明:
广告的有效期:
till gone
物品来源:
我的联系方式:
二手交易风险自负！请自行验证是否合法和一手卡！: |
|
v*******d
发帖数: 3525 | 17 我想要的物品:
DYMO Label Writer 450 Twin/DUO @ 85/95
>=3
twin @85
DUO @95
单张面值:
可接受的价格(必须明码标价！):
twin @85
DUO @95
物品新旧要求:
new
邮寄方式要求:
my label
买卖双方谁承担邮寄损失(Required if not code only):
default
付款方式说明:
paypal,billpay, chase quickpay
其他补充说明:
广告的有效期:
物品来源:
staples
我的联系方式:
pm
二手交易风险自负！请自行验证是否合法和一手卡！: |
|
w*****s
发帖数: 4116 | 18 二手交易风险自负！请自行验证是否合法和一手卡！:
我想卖的物品:
(7) DYMO Label Writer 450 Twin DUO @ $98
单张面值:
100
可接受价格(必须明码标价！):
$98 for one box drop off
$100 if drop one by one
物品新旧要求:
new in hand
邮寄方式要求:
YL
买卖双方谁承担邮寄损失(Required if not code only):
B/A
付款方式说明:
Bill pay/Paypal/BOA
For bill pay, if id is 730, I can only drop after bill payment received
其他补充说明:
some has plastic, some don\'t have it.
广告的有效期:
5 days; I will list them on ebay after July 20th
物品来源(Required for All Cards!):
local store
我的联系方式:
bbs
Warranty期限:
see m... 阅读全帖 |
|
s***o
发帖数: 714 | 19 我想要的物品:
1 * DYMO Label Writer 450 Twin @ 85
单张面值:
可接受的价格(必须明码标价！):
物品新旧要求:
new sealed
邮寄方式要求:
my fedex label
买卖双方谁承担邮寄损失(Required if not code only):
付款方式说明:
bill pay
其他补充说明:
please record serial number.
广告的有效期:
till get
物品来源:
我的联系方式:
PM |
|
m********e
发帖数: 3562 | 20 我想要的物品:
DYMO Label Writer 450 Twin Turbo @ 87
单张面值:
可接受的价格(必须明码标价！):
for >=3, 87
物品新旧要求:
new sealed with original upc sn
邮寄方式要求:
买卖双方谁承担邮寄损失(Required if not code only):
付款方式说明:
billpay
其他补充说明:
广告的有效期:
till got enough
物品来源:
我的联系方式:
mit
二手交易风险自负！请自行验证是否合法和一手卡！: |
|
s********d
发帖数: 2216 | 21 我想要的物品:
DYMO Label Writer 450 Twin Turbo label Printe
单张面值:
可接受的价格(必须明码标价！):
95
物品新旧要求:
new
邮寄方式要求:
My Fedex label
买卖双方谁承担邮寄损失(Required if not code only):
付款方式说明:
Bill Pay or check
or Paypal
其他补充说明:
广告的有效期:
物品来源:
我的联系方式:
bbs mail
or email to l***********[email protected]
二手交易风险自负！请自行验证是否合法和一手卡！: |
|
z*******i
发帖数: 5120 | 22 我想要的物品:
[label ready 求购]Dymo Label Writer 4XL to GA@155
单张面值:
可接受的价格(必须明码标价！):
物品新旧要求:
new， not display
邮寄方式要求:
my label
买卖双方谁承担邮寄损失(Required if not code only):
付款方式说明:
bill pay, check ,boa
其他补充说明:
广告的有效期:
物品来源:
我的联系方式: |
|
j********0
发帖数: 194 | 23 Please count me!!!
Look for some creative product review writers on AmazonWriters should have
Amazon accoun........
★ Sent from iPhone App: iReader Mitbbs Lite 7.28 |
|
f***x
发帖数: 1524 | 24 我想出售的物品:
DYMO Label Writer Twin Turbo Label P*****[email protected]
单张面值:
可接受的价格(必须明码标价！):
邮寄方式要求:
YL
买卖双方谁承担邮寄损失(Required if not code only):
付款方式说明:
paypal
其他补充说明:
广告的有效期:
till gone
物品来源:
我的联系方式:
二手交易风险自负！请自行验证是否合法和一手卡！: |
|
k*****i
发帖数: 2373 | 25 我想要的物品:
DYMO Label Writer Twin Turbo $85+ML to TX
单张面值:
可接受的价格(必须明码标价！):
物品新旧要求:
邮寄方式要求:
买卖双方谁承担邮寄损失(Required if not code only):
付款方式说明:
其他补充说明:
广告的有效期:
物品来源:
我的联系方式:
二手交易风险自负！请自行验证是否合法和一手卡！: |
|
Z*2
发帖数: 950 | 26 我想要的物品:
(label ready) DYMO Label Writer 450 Twin @ 90
单张面值:
可接受的价格(必须明码标价！):
90
物品新旧要求:
new
邮寄方式要求:
ml
买卖双方谁承担邮寄损失(Required if not code only):
付款方式说明:
BOA， paypal， billpay
其他补充说明:
广告的有效期:
till got
物品来源:
我的联系方式:
二手交易风险自负！请自行验证是否合法和一手卡！: |
|
v*******d
发帖数: 3525 | 27 我想要的物品:
DYMO Label Writer 450 Twin/DUO @ 85/95
>=3
twin @85
DUO @95
单张面值:
可接受的价格(必须明码标价！):
twin @85
DUO @95
物品新旧要求:
new
邮寄方式要求:
my label
买卖双方谁承担邮寄损失(Required if not code only):
default
付款方式说明:
paypal,billpay, chase quickpay
其他补充说明:
广告的有效期:
物品来源:
staples
我的联系方式:
pm
二手交易风险自负！请自行验证是否合法和一手卡！: |
|
b*****i
发帖数: 8239 | 28 [求购]DYMO Label Writer 450 Twin/DUO @ 85/95 |
|
s***o
发帖数: 714 | 29 我想要的物品:
1 * DYMO Label Writer 450 Twin @ 85
单张面值:
可接受的价格(必须明码标价！):
物品新旧要求:
new sealed
邮寄方式要求:
my fedex label
买卖双方谁承担邮寄损失(Required if not code only):
付款方式说明:
bill pay
其他补充说明:
please record serial number.
广告的有效期:
till get
物品来源:
我的联系方式:
PM |
|
m********e
发帖数: 3562 | 30 我想要的物品:
DYMO Label Writer 450 Twin Turbo @ 87
单张面值:
可接受的价格(必须明码标价！):
for >=3, 87
物品新旧要求:
new sealed with original upc sn
邮寄方式要求:
买卖双方谁承担邮寄损失(Required if not code only):
付款方式说明:
billpay
其他补充说明:
广告的有效期:
till got enough
物品来源:
我的联系方式:
mit
二手交易风险自负！请自行验证是否合法和一手卡！: |
|
s********d
发帖数: 2216 | 31 我想要的物品:
DYMO Label Writer 450 Twin Turbo label Printe
单张面值:
可接受的价格(必须明码标价！):
95
物品新旧要求:
new
邮寄方式要求:
My Fedex label
买卖双方谁承担邮寄损失(Required if not code only):
付款方式说明:
Bill Pay or check
or Paypal
其他补充说明:
广告的有效期:
物品来源:
我的联系方式:
bbs mail
or email to l***********[email protected]
二手交易风险自负！请自行验证是否合法和一手卡！: |
|
z*******i
发帖数: 5120 | 32 我想要的物品:
[label ready 求购]Dymo Label Writer 4XL to GA@155
单张面值:
可接受的价格(必须明码标价！):
物品新旧要求:
new， not display
邮寄方式要求:
my label
买卖双方谁承担邮寄损失(Required if not code only):
付款方式说明:
bill pay, check ,boa
其他补充说明:
广告的有效期:
物品来源:
我的联系方式: |
|
s********r
发帖数: 403 | 33 rw lock 有很多变种。
最基本的，如果不考虑 writer blocked by reader -> starvation, 感觉用一个
mutex 控制 counter 就够了。
fair 一点，用２个 mutex. |
|
c*********l
发帖数: 3438 | 34 这个writer 有bug吧. 少了continue |
|
s********r
发帖数: 403 | 35 一般 google 搜到的就是这个。
看上去稍微长了些，reader / writer lock 本质就是控制一个 atomic counter, 外
加 block 操作和 一对多的 event signal |
|
s********r
发帖数: 403 | 36 #1 You are right about the notification by condition number.
My point is that using one mutex is the easiest way to explain what a basic
reader / writer lock is, before moving to more details.
#2 In certain situations, for SMP, local spin can be better, that is how
spinlock works in kernel. |
|
s********r
发帖数: 403 | 37 [1] That one mutex method shows what the reader / writer lock in semantics,
if you watch carefully, I did not provide the interface such as r_lock()
or w_lock().
That is sufficient to explain the functionality, if they do not try to hold
the mutex again, which does not make any sense. The write() operation only
do write job, it does not hold any mutex.
[2] spinlock() functions in hardware threads environment. It is pointless to
use spinlock() is a uniprocessor environment. And it is not used to... 阅读全帖 |
|
c**1
发帖数: 71 | 38 Regarding the deadlock, let me give the detail on when it can happen
#1, thread A start reading, it successfully increased read count, then gets
preeempted
#2, thread B comes to write, it starts busy wait loop
#3, in uni processor system, when B has higher priority, A will never be
scheduled again, hence a dead lock
even in a SMP, when enough number of writers got to busy loop, deadlock can
still happen
As I explained, in user space, no one can guarantee a timely free from
lock holder, s... 阅读全帖 |
|
s********r
发帖数: 403 | 39 这个不是我的 implementation, 一看就是不对的.
不应当在完成 write_lock() 之前 atomic_inc(&write_count)，逻辑上不正确。
Anyway, reader / writer lock 不是什么 undocumented technique,过多争论没有
mystery 的技术没什么意思。
当然，如果你写一个比 stackowerflow 上面更简练的 implmentation,bug free,
非常欢迎拿出来 share。大家或许能很快派上用场。 |
|
j****l
发帖数: 85 | 40 如题，technical writer具体是做什么的？一般都是什么专业的人在做呢？跳槽和上升
的机会怎样？谢谢！ |
|
r******f
发帖数: 987 | 41 最近决心请改简历的公司帮忙改简历，然后过了节就撒网找工作。可是交完钱，match
到的writer是一个国人，从名字看出来的。有点疑问，这个公司有没有人了解，是不是
国人开的？ |
|
e****s
发帖数: 105 | 42 We are an institute offering writing service and training to individuals and
institutions. Now we need part time writers whose major is in one of these
disciplines: economics, finance/financial engineering, electrical
engineering, mechanical engineering, mathematics/statistics, physics,
chemistry, biology, psychology, communication, journalism, English
literature, law, etc. A graduate student or a college student in the senior
year will be considered for this position. Professionals with a good |
|
g******p
发帖数: 2 | 43 We are an institute offering writing service and training to individuals and
institutions. Now we need part time writers whose major is in one of these
disciplines: economics, finance/financial engineering, electrical
engineering,
mechanical engineering, mathematics/statistics, physics, chemistry, biology,
psychology, communication, journalism, English literature, law, etc. A
graduate
student or a college student in the senior year will be considered for this
position. Professionals with a good |
|
n****1
发帖数: 77 | 44 www.wofu.org w****[email protected] Writer/Editor/Ghostwriter (anywhere)
international
useful). |
|
m******n
发帖数: 5 | 45 Medjaden (www.medjaden.com) is a company that provides professional editing/
consulting services to laboratory researchers, post-graduates and clinical
doctors publishing in biomedical journals. Our mission is to help the
researchers get their valuable research work published in an internationally
recognized scientific journal in English. Our staff has extensive
experience in reviewing, writing and editing biomedical manuscripts and
biostatistical analysis. We also aim to ensure that every manus... 阅读全帖 |
|
A**M
发帖数: 331 | 46 大家好！
我们是一个新成立的华人非营利性组织，急需Graphic Designer, web content
management, English writer/translator volunteer ，希望有热心公益者和有意向者
能与我联系，站短或电邮y********[email protected]
谢谢！ |
|
l***5
发帖数: 3 | 47 Medical researchers and writers are needed for a new non-profit research
institute. Ideal candidates have medical background and are able to conduct
independent research (design clinical experience, data analysis, write
papers and publish them). Working at home and flexible working schedule.
Send your CV to [email protected]/* */ |
|
x**j
发帖数: 73 | 48 Does someone know good professional writers who can provide editing services
as I am looking for someone good to help me proofread and polish my
petition letter. I will pay for this.
If you have any info, please let me know. thanks in advance! |
|
g******p
发帖数: 2 | 49 We are an institute offering writing service and training to individuals and
institutions. Now we need part time writers whose major is in one of these
disciplines: economics, finance/financial engineering, electrical
engineering,
mechanical engineering, mathematics/statistics, physics, chemistry, biology,
psychology, communication, journalism, English literature, law, etc. A
graduate
student or a college student in the senior year will be considered for this
position. Professionals with a good |
|
l*******x
发帖数: 2683 | 50 有意者请联系我，我们在做一个nonprofit，急需一位有经验的grant writer帮忙，提
成或者少量报酬加提成的方式回报，谢谢 |
|
