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Benchmarking (python vs. c++ using BLAS) and (numpy)

...ies. Since performance is an issue I did some benchmarking and would like know, if the approach I took is legitimate. 4 Ans...
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Why does multiprocessing use only a single core after I import numpy?

....getpid()) With this line pasted in after the module imports, my example now runs on all cores: My experience so far has been that this doesn't seem to have any negative effect on numpy's performance, although this is probably machine- and task-specific . Update: There are also two ways to di...
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What is the difference between gmake and make?

... Apparently, GNU make is practically universal now, so there should almost never be a difference. share | improve this answer | follow ...
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GroupBy pandas DataFrame and select most common value

I have a data frame with three string columns. I know that the only one value in the 3rd column is valid for every combination of the first two. To clean the data I have to group by data frame by first two columns and select most common value of the third column for each combination. ...
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Rails extending ActiveRecord::Base

...y-patching. Some people, when confronted with a problem, think “I know, I'll use monkey patching.” Now they have two problems. Monkey patching is easy and quick. But, the time and effort saved is always extracted back sometime in the future; with compound interest. These days I limi...
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When to use ' (or quote) in Lisp?

...et (+ 3 2), + is then invoked on 3 and 2 yielding 5. Our original form is now (* 5 3) yielding 15. Explain quote Already! Alright. As seen above, all arguments to a function are evaluated, so if you would like to pass the symbol a and not its value, you don't want to evaluate it. Lisp symbols ca...
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How to join multiple lines of file names into one with custom delimiter?

... i just upvoted it, this is and now it has the same votes as the selected answer. THIS IS THE ANSWER. no trailing delimeter – thebugfinder Sep 14 '15 at 13:23 ...
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Covariance and contravariance real world example

...e donkey gobbling code last week and i was so glad that we have covariance now. :-) – Eric Lippert Apr 18 '10 at 15:26 ...
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Redeploy alternatives to JRebel [closed]

...ux. Starting with Java 11 the project moved to a new GitHub repository and now also provides binaries for OS X. DCEVM is packaged for Debian and Ubuntu, it's conveniently integrated with OpenJDK and can be invoked with java -dcevm. The name of the package depends on the version of the default JDK: ...
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The resulting API analysis is too large when upload app to mac store

...unrelated to the API analysis document created by App Loader. You should know that even with the scanning, there are still ways to get around the prohibition on using private/undocumented APIs. :) share | ...