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MPICH vs OpenMPI
...
Purpose
First, it is important to recognize how MPICH and Open-MPI are different, i.e. that they are designed to meet different needs. MPICH is supposed to be high-quality reference implementation of the latest MPI standard and...
Flask-SQLalchemy update a row's information
...t()
pprint(bob.data) # {}
# Modifying data is ignored.
bob.data['foo'] = 123
db.session.commit()
bob = User.query.filter_by(name='Bob').first()
pprint(bob.data) # {}
# Replacing data is respected.
bob.data = {'bar': 321}
db.session.commit()
bob = User.query.filter_by(name='Bob').first()
pprint(b...
How to handle initializing and rendering subviews in Backbone.js?
...ers:</div>
<div id="phone_numbers">
<div>#1: 123-456-7890</div>
<div>#2: 456-789-0123</div>
</div>
</div>
Hopefully it's pretty obvious how the HTML matches up with the diagram.
The ParentView holds 2 child views, InfoView a...
廉价共享存储解决方案1-drbd+ha+nfs - 更多技术 - 清泛网 - 专注C/C++及内核技术
...的了解和阅读。
如Lustre、
HDFS
MogileFS
FastDFS
OpenAFS
MooseFS
pNFS
GoogleFS
TFS（taobao）。
仔细阅读下来，发现上述系统不是不成熟，就是太大了，以至于根本就没有合适的环境去部署。寻寻觅觅中一个叫drbd的软件进入了视线
...
What are the undocumented features and limitations of the Windows FINDSTR command?
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How do I change the background color of a plot made with ggplot2
...
123
To change the panel's background color, use the following code:
myplot + theme(panel.backgrou...
Android: install .apk programmatically [duplicate]
... outputFile.delete();
}
FileOutputStream fos = new FileOutputStream(outputFile);
InputStream is = c.getInputStream();
byte[] buffer = new byte[1024];
int len1 = 0;
while ((len1 = is.read(buffer)) != -1) {
...
Differences between Intent and PendingIntent
...argetActivity.class);
i.putExtra("Key1", "ABC");
i.putExtra("Key2", "123");
// Starts TargetActivity
startActivity(i);
IMPLICIT INTENTS
// Implicit Intent by specifying a URI
Intent i = new Intent(Intent.ACTION_VIEW,
Uri.parse("http://www.example.com"));
// Starts Implicit Activ...
Find MongoDB records where array field is not empty
...d only happen if pictures is a sub-doc, not an array. e.g. pictures: {'2': 123}
– JohnnyHK
Aug 24 '15 at 19:46
5
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Why em instead of px?
...tter choice than the other (or both wouldn't have been given their own purpose in the spec). It may even be worth noting that StackOverflow makes extensive use of px units. It is not the poor choice Spoike was told it was.
Definition of units
px is an absolute unit of measurement (like in, pt, ...