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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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cpuid汇编指令 - C/C++ - 清泛网 - 专注C/C++及内核技术

... cpuid cmp eax, 80000004h jb not_supported mov di, offset CPU_name mov eax, 80000002h cpuid call save_string mov eax, 80000003h cpuid ...
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Generate a heatmap in MatPlotLib using a scatter data set

...50 heatmap. If you want, say, 512x384, you can put bins=(512, 384) in the call to histogram2d. Example: share | improve this answer | follow | ...
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Check if something is (not) in a list in Python

... @nightcracker That makes no sense as A not in B is reduced to doing not B.__contains__(A) which is the same as what not A in B is reduced to which is not B.__contains__(A). – Dan D. May 2 '12 at 0:33 ...
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PHP: Convert any string to UTF-8 without knowing the original character set, or at least try

I have an application that deals with clients from all over the world, and, naturally, I want everything going into my databases to be UTF-8 encoded. ...
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Python: Checking if a 'Dictionary' is empty doesn't seem to work

...; not dct True >>> Thus, your isEmpty function is unnecessary. All you need to do is: def onMessage(self, socket, message): if not self.users: socket.send("Nobody is online, please use REGISTER command" \ " in order to register into the server") else:...
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How are booleans formatted in Strings in Python?

...False) True, False This is not specific to boolean values - %r calls the __repr__ method on the argument. %s (for str) should also work. share | improve this answer | foll...
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Where to define custom error types in Ruby and/or Rails?

... error types in a Ruby library (gem) or Ruby on Rails application? Specifically: 5 Answers ...
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Why isn't sizeof for a struct equal to the sum of sizeof of each member?

... errors. Here's an example using typical settings for an x86 processor (all used 32 and 64 bit modes): struct X { short s; /* 2 bytes */ /* 2 padding bytes */ int i; /* 4 bytes */ char c; /* 1 byte */ /* 3 padding bytes */ }; struct Y { int i; /* 4...
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ADB No Devices Found

I am attempting to install an Android app on my brand new Nexus 10 . I have a .apk file. I have downloaded the Android SDK, installed "Android SDK Tools", "Android SDK Platform-tools", and Google USB Driver. I have checked the setting on my Nexus 10 for "Unknown Sources". ...