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Why is there huge performance hit in 2048x2048 versus 2047x2047 array multiplication?
... your cache. L is always power of 2.
The six comes from fact that 2^6 == 64 bytes is standard size of cache line.
Now what does this mean? Well it means that if I have address X and address Y and
(X >> 6) - (Y >> 6) is divisible by L (i.e. some large power of 2), they will be stored i...
Check if two linked lists merge. If so, where?
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edited Oct 20 '09 at 14:41
answered Oct 20 '09 at 12:47
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How to get relative path from absolute path
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edited Jun 7 '19 at 10:54
Ramon Smits
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answered ...
How to read a file line-by-line into a list?
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SilentGhostSilentGhost
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Installing a local module using npm?
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edited Jul 31 '17 at 14:06
Slava Fomin II
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Find nearest value in numpy array
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array = np.random.random(10)
print(array)
# [ 0.21069679 0.61290182 0.63425412 0.84635244 0.91599191 0.00213826
# 0.17104965 0.56874386 0.57319379 0.28719469]
value = 0.5
print(find_nearest(array, value))
# 0.568743859261
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How to change indentation mode in Atom?
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Jon Koops
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answered Mar 24 '14 at 14:14
blomblom
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How to exit from Python without traceback?
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edited Jun 30 '12 at 19:48
martineau
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ans...