y**b
发帖数: 10166 | 1 请问一般用什么通用的方法和工具？
有几个问题请教：
（1）PAPI_MEM_SCY(Cycles Stalled Waiting for Memory Access,好处是可以嵌在代
码里面，尤其适合并行计算)似乎不支持sandybridge/ivybridge/haswell几种处理器，
是不是意味着基于PAPI的TAU,PerfSuite,HPCToolkit也没法做这种测试？
（2）用perf进行了测试，结果如下
perf stat -p 48382 sleep 10
Performance counter stats for process id '48382':
4821.604141 task-clock (msec) # 0.963 CPUs utilized
[100.00%]
1,218 context-switches # 0.253 K/sec
[100.00%]
0 ... 阅读全帖 |
|
y**b
发帖数: 10166 | 2 perf不错，好像不能测试mpi程序。请看这个例子：
perf stat -p 48382 sleep 10
Performance counter stats for process id '48382':
4821.604141 task-clock (msec) # 0.963 CPUs utilized
[100.00%]
1,218 context-switches # 0.253 K/sec
[100.00%]
0 cpu-migrations # 0.000 K/sec
[100.00%]
0 page-faults # 0.000 K/sec
17,312,623,873 cycles ... 阅读全帖 |
|
t****o
发帖数: 856 | 3 我在维州北部，靠近DC。车是2006年的Grand Caravan，跑了6万多英里。
上星期带全家开车去外州旅行了八天，全程开了一千七百多英里，大部分是洲际高速，
发动机运转顺畅，一点异常也没有。
周二晚上回到家，周三LD在Local上开的时候，踩刹车的时候会发生Enging Stall，同
时机油压力警告灯点亮。 据LD讲，一般是在远远看到红灯，连续轻轻点刹，车快停稳
的时候发生Engine Stall。 停机后LD把钥匙拔出来，隔几秒后再重新启动发动机，则
一切恢复正常。不是每次踩都会停机，但一天也有五六次，不定什么时候发生。
昨天去了附近的修车铺，但是查不出来什么原因。 机油很干净，油位也在上限位置。
（5月中旬刚换的机油）。 据修车铺老板的猜测，也许是什么地方的传感器Cable接触
不良，导致CPU收到错误信号，因而发出停机指令。
今天去了Dealer检查。 花了一百多刀的检查费，结果也没查出什么，说是没有任何
ErrorCode，检测车载CPU也工作正常。 传感器连线接头拔下检查未发现异常。无法再
现故障。
然而Dealer说，发动机进气口积碳较为严重，需要做Inductio... 阅读全帖 |
|
d**z
发帖数: 3577 | 4 【 以下文字转载自 Stock 讨论区 】
发信人: dmjz (东门虎西门豹), 信区: Stock
标 题: The Year the Hedge-Fund Model Stalled on Main Street
发信站: BBS 未名空间站 (Wed Dec 30 21:38:33 2015, 美东)
The Year the Hedge-Fund Model Stalled on Main Street
By Sarah Krouse
Dec. 30, 2015 6:59 p.m. ET
Enthusiasm is fading for what had become one of the hottest products in
asset management
It is getting a lot harder to sell hedge-fund-style investing to the masses.
More “liquid alternative” mutual funds closed in 2015 than in any year on
record,... 阅读全帖 |
|
o*******g
发帖数: 553 | 5 2002 Lincoln Continental. It is fine with normal driving speed (highway and
local). However the engine will stall occasionally (misfire) at low speed (~
5 miles/hr) for example at parking lot (ready for parking). It happens 3
times in two weeks. When it stalls, I try to start the car. I immediately
started the car two times after it stalls, but failed. However, it succeed
to start after rest about 1 mins. Then I turn off the car, and restart the
car, it normally succeed. By the way, The car can |
|
d**z
发帖数: 3577 | 6 【 以下文字转载自 Stock 讨论区 】
发信人: dmjz (东门虎西门豹), 信区: Stock
标 题: The Year the Hedge-Fund Model Stalled on Main Street
发信站: BBS 未名空间站 (Wed Dec 30 21:38:33 2015, 美东)
The Year the Hedge-Fund Model Stalled on Main Street
By Sarah Krouse
Dec. 30, 2015 6:59 p.m. ET
Enthusiasm is fading for what had become one of the hottest products in
asset management
It is getting a lot harder to sell hedge-fund-style investing to the masses.
More “liquid alternative” mutual funds closed in 2015 than in any year on
record,... 阅读全帖 |
|
q*******3
发帖数: 17 | 7 大家帮忙看看周围有没有需要租房的朋友，我一好友，人在国内，有个brand new的新
房出租，情况如下：single house，2700尺，地点stallings Fair Heaven，距离大亚
洲、Matthews Costco都很近（3 mile），10分的stallings elementary school就在小
区旁边（0.4 mile)，小区很新、很nice，有游泳池等设施。地址是：1839 yellow
daisy dr stallings NC 28104（图片可以上zillow rent上看，房子9月11日才close）
，租金1600元/月（低于评估租金100元）。因朋友人在国内，想找一位（一家）稳定居
住的租客，当然中国人最佳。
联系方式：[email protected]
/* */ |
|
|
a***r
发帖数: 146 | 9 Philadelphia Fed's Factory Index Stalled in August
By Joe Richter
Aug. 16 (Bloomberg) -- Manufacturing in the Philadelphia region stalled
August, as orders and sales cooled.
The Federal Reserve Bank of Philadelphia's general economic index dropped to
zero in August, the dividing line between expansion and contraction, from 9
.2 in July, the bank said today. The gauge averaged 5.8 percent this year
before today's report.
The figures run counter to Fed reports yesterday showing gains in New York
m |
|
c*******7
发帖数: 2506 | 10 老房子，一个卫生间装的是shower stall,不是现在这种one piece的，就是墙上贴瓷砖
，脚下是个类似水磨石做的base。最近发现墙里面的部分漏水，请人看了说因为太老了
，需要打开墙更换里面的部分。因为是townhouse，隔墙就是邻居家了，没法从后面
drywall干活，只能破坏瓷砖，换完后重贴瓷砖。这是背景。
我们现在考虑因为是老房子，瓷砖很难找到跟以前一样的，那就不能只换拆掉的几块瓷
砖，得全部换掉。这种情况下，出于经济考虑，是不是装个one piece的shower stall
更便宜？
查了一下，HD之类的店里这种都是几种固定的尺寸，最接近的是48寸宽的，因为我家的
那个空间宽度是50-52之间。不知道这种情况能不能装？如果装的话，找什么人最合适
？handyman？还是remodeling 公司？还是让HD找他们的subcontractor？
谢谢。 |
|
d**z
发帖数: 3577 | 11 The Year the Hedge-Fund Model Stalled on Main Street
By Sarah Krouse
Dec. 30, 2015 6:59 p.m. ET
Enthusiasm is fading for what had become one of the hottest products in
asset management
It is getting a lot harder to sell hedge-fund-style investing to the masses.
More “liquid alternative” mutual funds closed in 2015 than in any year on
record, according to research firm Morningstar Inc., as inflows dwindled and
performance weakened.
The results show that enthusiasm is fading for what had emerged i... 阅读全帖 |
|
x***q
发帖数: 4953 | 12 【 以下文字转载自 Automobile 讨论区 】
发信人: xxcyq (刘惜君 爱情花园), 信区: Automobile
标 题: Toyota Warns of Engine Stalling in 1.2M Corollas zz
发信站: BBS 未名空间站 (Thu Mar 18 12:54:58 2010, 美东)
http://www.firstcoastnews.com/money/onyourside/recalls/news-article.aspx?storyid=153447&catid=39
WASHINGTON -- Just when Toyota thought it was getting hold of its recall
nightmare, it is now trying to figure out how to fix computer flaws in up to
1.2 million Toyota Corolla and Matrix models that can cause engines to
stall, the De |
|
g***s
发帖数: 733 | 13 有搞发动机的专家们给翻译一下
surge和rotating stall or stall中文叫什么？
多谢了。 |
|
c**i
发帖数: 6973 | 14 Keith B Richburg, Mistrust stalls U.S.-China space cooperation
http://www.washingtonpost.com/wp-dyn/content
/article/2011/01/21/AR2011012104480.html
("The Obama administration * * * views space as ripe territory for
cooperation with China. * * * The Chinese leadership has shown scant
interest in opening up the most sensitive details of its program, much of
which is controlled by the People's Liberation Army (PLA)") |
|
s*******p
发帖数: 1291 | 15 “The history here with China promises is not very good. And we know that,”
Kudlow said. “However, I will say this: President Xi has never been this
involved.”
哈哈哈，
Kudlow said: “They cannot slow walk this, stall this, meander this. Their
word: ‘immediately.’” |
|
|
g********d
发帖数: 4174 | 17 Posted on Advocate.com December 08, 2010
Story Updated : December 09, 2010 06:00:00 AM
Reid Stalls DADT Vote After Collins Talks
By Michelle Garcia and Kerry Eleveld
Sen. Susan Collins On Wednesday evening, Senate majority leader Harry Reid
postponed a full vote in the Senate on the bill that includes language to
repeal the military's ban on openly gay and lesbian troops. The roll call
vote is now scheduled to take place around 12:00 p.m. Thursday, shortly
after votes on the DREAM Act and the 9/... 阅读全帖 |
|
g********d
发帖数: 4174 | 18 Posted on Advocate.com January 14, 2011
A Last-Ditch Effort to Stall DADT Repeal
By Advocate.com Editors
Rep. Duncan Hunter plans to introduce a bill next week that would require
all four military service chiefs to sign off on "don't ask, don't tell"
repeal before gay service members could serve openly.
The Hill reports that the California Republican may bring up the legislation
as early as Tuesday. Under terms of repeal passed by Congress and signed
into law last month, approval is required by ... 阅读全帖 |
|
|
o*******g
发帖数: 553 | 20 One more information, the engine revolving speed is low 500 to 700RPM before
the engine stalls.
and
(~
successfully
the
speed. |
|
o*******g
发帖数: 553 | 21 dma,
My case is a little different from yours.
I have no problem in starting the car even in cold weather. Even the engine
accidentally stalls (when the car has already been warm), it can easily
start again after 1 min. Then everything appears fine. |
|
x***q
发帖数: 4953 | 22 http://www.firstcoastnews.com/money/onyourside/recalls/news-article.aspx?storyid=153447&catid=39
WASHINGTON -- Just when Toyota thought it was getting hold of its recall
nightmare, it is now trying to figure out how to fix computer flaws in up to
1.2 million Toyota Corolla and Matrix models that can cause engines to
stall, the Detroit Free Press is reporting.
But Toyota has told federal auto safety regulators it doesn't think the
problem "an unreasonable risk" to safety. Drive On guesses that's |
|
m*******a
发帖数: 371 | 23 只要轻踩离合器就不会stall？
如果踩离合器踩到底，但是减速过程不downshift,是不是对车有严重损害？ |
|
s*****c
发帖数: 122 | 24 红绿灯前有时会无声无息的stall, 需要挂P档重新打火。会是什么问题？ |
|
h*****g
发帖数: 357 | 25 好象是叫Engine stalls. 上个星期刚换了Engine oil 和transmission fluid.
加速感觉迟滞.轻微抖动, 但是没有service engine light on.
问问大家有可能是什么问题? 请指教.
我想了几个可能的地方, fuel filter (over due), mass air flow sensor (need to
be cleaned), coil plugs. |
|
m****o
发帖数: 837 | 26 去Bed Bath & Beyond看看吧，shower section里好多shower stall里用的架子，有
挂在shower head上的，也有安装在墙角的三层的shelves, 都很好。别忘了２０％ off
coupon. |
|
a*****0
发帖数: 3319 | 27 今天打电话给一师傅说到浴室装修. 他说stall shower地上用马赛克有个问题，就是
时间久了grout处易发霉，而shower pan没这问题。
我本来都看好2x2的马赛克了，现在犹豫了。
多谢大家。 |
|
a*****0
发帖数: 3319 | 28 bathroom要装frameless shower door, 今天glass shop的老美来测量, 说我shower
stall的curb（台阶） 是水平的，没有做成向内倾斜的角度，做frameless door, 如果
下面不加个金属条，水容易从curb往外漏。
另外我发现放shampoo的槽（我买的模子）中间那一片也没做成倾斜，而是水平的。
bathroom remodel已经做好，师傅也去别的地方干活了（他住得离我很近）。这种情况
要紧吗？是不是返工很麻烦（哪怕另外给师傅钱）？
请大家帮我出出主意，如果返工麻烦，我就只能叫glass shop的老美把frameless
shower door装上了。然后move on to下面的事了。
多谢大家。 |
|
a*****0
发帖数: 3319 | 29 多谢。不想改成有框的，frameless shower door能使这个小小的shower stall显得大
些。而且这个bathroom材料都是买得比较贵的，tile买的是porcelanosa的，$9.95/sq
ft,curb的边条一根就$50.所以也不想降低shower door档次。
如果哪怕给钱返工都非常麻烦，我就让glass shop的老美order glass door了。您觉得
我提的这两个装修不足之处要紧吗？谢谢。 |
|
a*****0
发帖数: 3319 | 30 多谢。glass shop人说可以在swinging door下面的curb上贴个金属条，但fixed door
下面不贴。门下面都有挡水胶条，但如果在curb上的水太多，可能挡水胶条不够。
我自己网上研究了，发现的确curb需要做倾斜。不知大家请师傅做shower stall时师傅
是否也会忽略了这点。 |
|
u***e
发帖数: 611 | 31 Quote home insurance 时填表格要填number of stalls 是什么东东？大家都是哪家的
保险公司？一年800多的premium正常吗？多谢！ |
|
w*****m
发帖数: 20421 | 32 当然是砸了重做，不建议用one piece的shower stall，这个都是弄在地下室或者
临时用一用，当然你图便宜可以考虑，省钱就找HANDYMAN吧，找有经验的，TILE其实
不好弄的，搞得赖了巴基的一堆一堆的。 |
|
i*****d
发帖数: 178 | 33 http://www.bloomberg.com/apps/news?pid=20601087&sid=aHb.TmEACU5A&refer=home
By John Hughes and Lorraine Woellert
Dec. 9 (Bloomberg) -- Congressional approval of a $15 billion U.S. automaker
bailout is stalled over disputes including whether the companies should be
required to drop lawsuits challenging environmental rules.
The lawsuits are “one of the issues we’re talking about,” House Financial
Services Chairman Barney Frank told reporters. The disagreements don’t
appear to be “of a sufficient n |
|
d*******r
发帖数: 3875 | 34 Tuesday, April 5, 2011
Dow Stalls Out at 12,400 Yet Again
Bottom line, Dow cash has trouble breathing above 12,400. I continue to be
short here, looking for a correction own to 12,100 to take some profits, and
then again at 11,800 on a flush lower. Time will tell.
In the grains, I am wary of being long going into Friday's Supply and Demand.
After corn has had a $1.00 rally after last Thurdays's USDA planting number,
the market looks over done. Corn stocks lost 200 Million bushels, but the
market... 阅读全帖 |
|
l*******o
发帖数: 2795 | 35 The Washington Post (10/3, Harrison) reports, "The once steady rise in
immigrant entrepreneurship has stalled in the United States, threatening to
further slow an already sluggish economic recovery. Over the past six years,
the proportion of new companies founded by foreign-born individuals has
slipped to 24.3 percent from 25.3 percent, according to a" report by the
Kauffman Foundation. "This updated previous studies showing a boom in
immigrant entrepreneurship over previous decades."
Bl... 阅读全帖 |
|
|
c*******n
发帖数: 679 | 37 【 以下文字转载自 Automobile 讨论区 】
发信人: colvinrun (colvinrun), 信区: Automobile
标 题: [求教] engine stalled and dashboard lights were on when car slowed down
发信站: BBS 未名空间站 (Tue Oct 16 11:20:15 2012, 美东)
今晨上班途中，车子红灯前减速过程中，所有dashboard灯都亮（除了engine light）
，引擎停转；车钥匙重新打火，一切正常。有没有哪位碰到类似情况？估计是什么问题
？两年前发生过一次。
谢谢！ |
|
b******n
发帖数: 352 | 38 目前的情况是，快近地面时，加back pressure，本想让飞机减速stall着地，但实际是
，飞机或者升起来，或者触地后升起来。后面会过段时间飞机着地，有时候是三个轮子
一起着地。
教练对这个不满意，不让单飞。感觉加back pressure的时候，是不是有其他注意事项
？比如不要过急，注意调整，到某个阶段彻底back pressure.
大家都有什么心得呢？ |
|
g*******e
发帖数: 96 | 39 If the plane goes up when you pull back, it means you were applying too much
back pressure.
If the plane bounce up after contacting the runway, you were having
excessive airspeed, which means you didn't pull back early enough.
You need to constantly adjust the back pressure during the entire flaring
process. Look outside to judge where the runway is, and look inside to
maintain airspeed. When you enter ground effect, gradually pull back to slow
down the sink rate, but you don't need to aim for a... 阅读全帖 |
|
l****z
发帖数: 29846 | 40 Aight... let me see if I can pull this off and tie those title subjects
together.
I've made the assertion numerous times and continue to think it true that
too often too many on The Left are all about emasculating men. Some of
those assertions I've chronicled in my Plainly Not So Manly category where
you'll find this particular post recording happenings in Sweden last year:
The GLBT influence in Sweden is strong, very strong... oops, those words
would also be seen to be problematic:
... 阅读全帖 |
|
y**b
发帖数: 10166 | 41 请问一般用什么通用的方法和工具？
另外，PAPI_MEM_SCY(Cycles Stalled Waiting for Memory Access)似乎不支持
sandybridge/ivybridge/haswell几种处理器，是不是意味着基于PAPI的TAU,PerfSuite
,HPCToolkit也没法做这种测试？ |
|
y**b
发帖数: 10166 | 42 我用intel pcm测试了一下单机工作站上的程序，
1 core 串行，L3HIT ratio 100%，
12 core并行，L3HIT ratio 97%，
这算高吗？
但也不知道pcm怎么测试cpu stall cycles。 |
|
S*A
发帖数: 7142 | 43 这两种升力都有，正常飞行状态下是阻力的向上分力为主。
仰视角过大的的 Stall（失速） 现象是和涡流有关系的。
在 Stall 的状态下升力分量急剧减少，几乎就是完全是
前进的阻力。
这个 Stall 安全速度是和 Stall 的仰角紧密关连的。
高于这个速度，可以增加仰角获得升力。
低于这个速度，增加仰角会 stall, 不增仰角升力又不够。
在这个现象里，涡流扮演了重要角色。
怀特兄弟可能没有正规的流体力学理论。但是他们设计的
螺旋桨是完全按照流体力学原理做出来最优的现代完美螺
旋桨非常一致了。螺旋桨之所以要拧那个弯，就是要获得最
大升力但是又不进入 stall。所以怀特兄弟通过摸索绝对是
玩得转 Stall 这些流体力学的东西的。 |
|
S**T
发帖数: 14 | 44 http://sinbestfood.tripod.com/foodieschoice/
不知道是不是很老了，我刚看到的。
美食包打听 Episode 1 - 12
Episode 1
District 1: Chinatown (from Upper Cross street to Maxwell Road Food Centre &
Chinatown Complex)
The Top 3 most voted stalls for Ep 1 in Chinatown are:
1st stall : Lam Chee Guan 203, New Bridge Rd
2nd stall : Heng Heng Fan Shu, 31, Maxwell Rd Food Centre
3rd stall : China street Wu Xiang Kuan Chang, 64, Maxwell Rd Food Centre
3rd stall : Dong Xing Egg Tart, 285, South Bridge Rd
The above stalls are rank |
|
a***a
发帖数: 40617 | 45 http://www.angelfire.com/ca2/LowcarbingDream/MiniFAQ.html
Lowcarb/Atkins MiniFAQ
Frequently Addressed Issues for Lowcarbers.
Many folks lose great on Induction and then stall. This is normal and to
be expected since your body is adjusting to your new weight. The stall will
pass and weight loss will resume, usually (but not always) within 2-3 weeks
.
Citric acid, a common ingredient in diet soda and other diet products, can
stall weight loss for 40-50% of lowcarbers. If you are sensitive to this
... 阅读全帖 |
|
l**n
发帖数: 2405 | 46 今天我的Accord在90K major maintenance后好了两三个星期，又出现engine stall的
情况。以前都是在刚刚打着火倒车的时候stall，今天在正常行驶，红绿灯拐弯的时候
stall了。
刚才上网查了查"honda accord 2005 stall"，发现2007年就已经有stall recall了,
打算明天去dealer看看是不是这个毛病。
http://www.motortrend.com/cars/2005/honda/accord/recalls/index.html
Recall ID # 05V132000 - ELECTRICAL SYSTEM:FUSES AND CIRCUIT BREAKERS -
Hide Details
Recall Date:
APR 05, 2005
Model Affected:
2005 HONDA ACCORD
Summary:
ON CERTAIN PASSENGER VEHICLES, A LOOSE TERMINAL IN THE MAIN FUSE BOX MAY
CAUSE THE FUEL PUM |
|
v****4
发帖数: 25 | 47 第一次买房做的inspection结果出来了，发现一个浴室下面的foundation木头由于漏水
而长霉且损坏，请问各位前辈修要多少钱：
3B - FINDING - Fungus damage to wood members beneath stall shower. Standard
water test indicates that the base of the stall shower is leaking. Base of
stall shower leaks when standard water test is applied.
RECOMMENDATION - Break out and remove the entire existing stall shower.
Remove and replace fungus damaged framing members. Install a new shower pan
and re-tile with standard grade ceramic tile. If, upon removal, we find that... 阅读全帖 |
|
发帖数: 1 | 48 安-24 所有事故：
1960s
1962
29 July 1962
A MAP Kiev MSZ An-24 (CCCP-46708) overran the runway at Sheremetyevo
Airport following an aborted takeoff.[1]
1965
20 March 1965
An Aeroflot An-24 (CCCP-46764) landed short of the runway at Khanty-
Mansiysk Airport, struck a snow drift and broke up, killing 43 of 47 on
board.[2]
1966
2 February 1966
A United Arab Airlines An-24 (SU-AOB) crashed at Luxor, Egypt during a
test flight.[3]
18 March 1966
United Arab Airlines Flight 749 crashed while a... 阅读全帖 |
|
W***n
发帖数: 11530 | 49 Architectural Differences: Rolls Royce engines differ with its American
counterparts GE and P&W in engine compressor architecture. Rolls Royce
design consists of three spool compressor— HP (High Pressure), IP (
Intermediate Pressure) and LP (Low Pressure) compressor—whereas American
engines have twin-spool compressors—HP & LP. Three spool compressors also
mean three concentric turbine shafts all running at different speeds.
Compressors are basically split into two or three spools to prevent
comp... 阅读全帖 |
|
f******o
发帖数: 2469 | 50 US, China trade meeting ends with sharp response to Trump
PUBLISHED TUE, JUL 30 2019 10:21 PM EDTUPDATED 2 HOURS AGO
Reuters
GP: mnuchin and lighthizer n shanghai trade talks 190731
Chinese Vice Premier Liu He (R) with United States Trade Representative
Robert Lighthizer (2nd L) and Treasury Secretary Steve Mnuchin (L) before
the start of talks at the Xijiao Conference Center in Shanghai on July 31,
2019.
Ng Han Guan | AFP | Getty Images
Talks between U.S. and Chinese trade officials seeking wa... 阅读全帖 |
|
