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从异构软件开发者的角度看异构计算 - 操作系统(内核) - 清泛网 - 专注C/C++...
...此我们应该先对异构的计算平台有一定理解，然后在了解如何在异构平台上执行计算。那到底什么是异构平台呢？首先我们知道现在有很多可以用于计算的单元，诸如CPU，GPU，MIC，DSP，FPGA等等，如果在同一个计算机系统中加入...
Limit results in jQuery UI Autocomplete
...m a mysql query, it is more efficient to limit directly the mysql result:
select [...] from [...] order by [...] limit 0,10
where 10 is the max numbers of rows you want
Can't install Ruby under Lion with RVM – GCC issues
...e two lines:
http://stackoverflow.com/questions/8000145/ruby-rvm-llvm-and-mysql
bash-3.2$ rvm get head
bash-3.2$ CC=/usr/bin/gcc-4.2 rvm install 1.9.3 --enable-shared
Before that I had tried every stackoverflow article on Ruby and Lion so doing these may have done some setup that helped the abov...
How to document a method with parameter(s)?
...nts which is a compact, machine-readable syntax:
from typing import Dict, Union
def foo(i: int, d: Dict[str, Union[str, int]]) -> int:
"""
Explanation: this function takes two arguments: `i` and `d`.
`i` is annotated simply as `int`. `d` is a dictionary with `str` keys
and value...
Tactics for using PHP in a high-load site
...l you measure and compare your changes.
For example, for many years, the MySQL query cache was the solution to all of our performance problems. If your site was slow, MySQL experts suggested turning the query cache on. It turns out that if you have a high write load, the cache is actually cripplin...
Where does Android emulator store SQLite database?
...data > your-package-name > databases > your-database-file.
Then select the file, click on the disket icon in the right corner of the screen to download the .db file. If you want to upload a database file to the emulator you can click on the phone icon(beside disket icon) and choose the fi...
搭建高可用mongodb集群（二）—— 副本集 - 大数据 & AI - 清泛网 - 专注C/...
...切换连接？目前需要手工切换。
主节点的读写压力过大如何解决？
从节点每个上面的数据都是对数据库全量拷贝，从节点压力会不会过大？
数据压力大到机器支撑不了的时候能否做到自动扩展？
这篇文章看完这些问题就...
How to switch databases in psql?
...
You can select the database when connecting with psql. This is handy when using it from a script:
sudo -u postgres psql -c "CREATE SCHEMA test AUTHORIZATION test;" test
...
C Macro definition to determine big endian or little endian machine?
... = 0x02030001ul /* Honeywell 316 (aka ENDIAN_BIG_WORD) */
};
static const union { unsigned char bytes[4]; uint32_t value; } o32_host_order =
{ { 0, 1, 2, 3 } };
#define O32_HOST_ORDER (o32_host_order.value)
#endif
You would check for little endian systems via
O32_HOST_ORDER == O32_LITTLE_E...
django.core.exceptions.ImproperlyConfigured: Error loading MySQLdb module: No module named MySQLdb
The problem Im facing while trying to connect to database for mysql. I have also given the database settings that i have used.
...