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How do I parallelize a simple Python loop?
...ge(10)
def processInput(i):
return i * i
num_cores = multiprocessing.cpu_count()
results = Parallel(n_jobs=num_cores)(delayed(processInput)(i) for i in inputs)
print(results)
The above works beautifully on my machine (Ubuntu, package joblib was pre-installed, but can be installed via pip in...
What's the state of the art in email validation for Rails?
...step to catch typos. I would do it with a simple regex, and not waste the CPU cycles on anything too complicated:
/\A[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]+\z/
That was adapted from http://www.regular-expressions.info/email.html -- which you should read if you really want to know all the tra...
the item you requested is not available for purchase
...V.png
UPDATE
If you're using flavors to build apks targeting different CPUs and you build for arm, armv7 and x86 and you upload them all to the store, remember to use one of them to test the inapps. If you use a "universal" build which contains all the cpu libraries (basically another build than...
Where can I get a list of Ansible pre-defined variables?
...
"Pentium(R) Dual-Core CPU E5300 @ 2.60GHz"
],
"ansible_pro...
Why should the “PIMPL” idiom be used? [duplicate]
...in headers. It takes about five minutes to compile (on a decent multi-core CPU), and just parsing the headers in an otherwise empty .cpp takes about a minute. So anyone using the library has to wait a couple of minutes every time they compile their code, which makes the development quite tedious. Ho...
Check if an image is loaded (no errors) with jQuery
..., set up a "load" event handler. There shouldn't be any need to hammer the CPU by running this check multiple times.
– Michael Martin-Smucker
Apr 15 '14 at 15:03
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Why start an ArrayList with an initial capacity?
... tell ArrayList to allocate a larger storage to begin with as to not waste CPU cycles when it tries to allocate more space for the next item. Thus to allocate some space at the beginning is more effiecient.
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Best way to serialize an NSData into a hexadeximal string
...e Gallagher's answer is sufficient for a relatively small size, memory and cpu performance deteriorate for large amounts of data. I profiled this with a 2MB file on my iPhone 5. Time comparison was 0.05 vs 12 seconds. Memory footprint is negligible with this method while the other method grew the he...
Start ssh-agent on login
...nt processes is not a disadvantage, because they don't take more memory or CPU time.
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Why would you use Oracle database? [closed]
... Primary limitations af Express (XE) are 4 GB of data, 1 GB of RAM, 1 CPU.
– Gary Myers
Feb 11 '09 at 22:33
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