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How does BLAS get such extreme performance?
...e optimization. This boost significantly exceeds the second boost from parallelism and other hardware optimizations.
By the way, most (or even all) of the high performance BLAS implementations are NOT implemented in Fortran. ATLAS is implemented in C. GotoBLAS/OpenBLAS is implemented in C and i...
What does Python's eval() do?
...less until you find a need for it. It is used on sites like codepad.org to allow you to execute scripts in a test environment. eval() can also be used to execute highly-dynamic code, but you should make yourself fully aware of the security and performance risks before using it.
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“媒”出路？如今“媒体+行业”创业机会多得是 - 资讯 - 清泛网 - 专注C/C+...
...收益变现而产生回报，彻底颠覆了传统意义上对媒体功能定位和价值实现模式的认知。
“媒体+行业”的基本方法论
第一阶段：
选择一个拥有较大市场规模和受众用户的传统行业细分领域，建立针对甲方、乙方以及第三方等...
What is the difference between user and kernel modes in operating systems?
... CPU instruction and
reference any memory address. Kernel
mode is generally reserved for the
lowest-level, most trusted functions
of the operating system. Crashes in
kernel mode are catastrophic; they
will halt the entire PC.
User Mode
In User mode, the executing code has no abili...
How to run functions in parallel?
...find an answer to my question. I am trying to run multiple functions in parallel in Python.
6 Answers
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Benchmarking (python vs. c++ using BLAS) and (numpy)
...e python for my program, what could I do to increase the performance when calling BLAS or LAPACK routines?
Make sure that numpy uses optimized version of BLAS/LAPACK libraries on your system.
share
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Programmatically get the cache line size?
All platforms welcome, please specify the platform for your answer.
8 Answers
8
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[工程源码实例] C++ ADO 读写Excel源码及注意点 - C/C++ - 清泛网 - 专注C/C++及内核技术
...貌似找不到驱动，有解决的烦请评论告知下，谢谢。
3、定位单元格可以用整数索引，也可以用字符串列名（第一行的文字）。
4、SELECT * FROM [中文Sheet名$] 中文Sheet名后要加"$"。
5、单元格为空的话，v.vt 值为 VT_NULL。|1454|1455C...
lua和c/c++互相调用实例分析 - C/C++ - 清泛网 - 专注C/C++及内核技术
..."栈"上，然后获取数据，栈中的每个数据通过索引值进行定位，索引值为正时表示相对于栈底的偏移索引，索引值为负时表示相对于栈顶的偏移索引，索引值以1或-1为起始值，因此栈顶索引值永远为-1 ,栈底索引值永远为1 。 "栈"...
CPU指令集avx程序无法运行，运行崩溃 - C/C++ - 清泛网 - 专注C/C++及内核技术
CPU指令集avx程序无法运行，运行崩溃cpu_avx_run原因就是CPU不支持相应的指令集导致的。Linux上使用 lscpu 命令查看CPU指令集，看是否支持。比如_mm256_cmpeq_epi64 这个函数需要avx2指令集，但是CPU不支持，就导致程序崩溃起不来。原因...