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Why should hash functions use a prime number modulus?
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@SteveJessop The number 31 is easily optimized by the CPU as a (x*32)-1 operation, in which *32 is a simple bit shift, or even better an immediate address scale factor (e.g. lea eax,eax*8; leax, eax,eax*4 on x86/x64). So *31 is a good candidate for prime number multiplication. T...
Boost Statechart vs. Meta State Machine
...dware will be able to process a few hundred events per second.
Regarding CPU load, if the number of events to process is much lower than these numbers, Boost.Statechart overhead compared to MSM will almost certainly not be noticeable. If the number is much higher, you're definitely better off with...
Use numpy array in shared memory for multiprocessing
...mopapisdn: Pool() defines the number of processes (the number of available CPU cores is used by default). M is the number of times f() function is called.
– jfs
Jul 16 '18 at 13:08
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Do on-demand Mac OS X cloud services exist, comparable to Amazon's EC2 on-demand instances? [closed]
...e pricing plans), 2: it looks like pricing is not based on clock hours but CPU hours, which is appealing, but a little awkward, 3: permanency of data and configurations (a la EBS and AMIs) isn't clear. Nonetheless their $8 daily pass doesn't sound bad.
– Iterator
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What are some uses of template template parameters?
...type float and on GPU, but connection_matrix will always be int, either on CPU (by specifying TT = Tensor) or on GPU (by specifying TT=TensorGPU).
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Elastic search, multiple indexes vs one index and types for different data sets?
...at such large numbers of shards make the job of the coordinating node very CPU and memory intensive. It is usually a better idea to organize data in such a way that there are fewer larger shards. In case you would like to bypass this limit, which is discouraged, you can update the action.search.shar...
What's the difference between an inverted index and a plain old index?
...or documents set) as fast as possible. Think about the limit of memory and cpu, other index can't finish this job.
You can read lucene document for more details. It's a open source search engine. http://lucene.apache.org/java/docs/index.html
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Most efficient way of making an if-elif-elif-else statement when the else is done the most?
...e(1000000):
the_thing = options[something]
...and note the amount of CPU time they use...
1.py: 160ms
2.py: 170ms
3.py: 110ms
4.py: 100ms
...using the user time from time(1).
Option #4 does have the additional memory overhead of adding a new item for every distinct key miss, so if you're e...
Android Game Keeps Getting Hacked [closed]
... anything that can be read can also be decompiled, it just a matter of CPU power and stubborness. Obfuscation still lets the code run so while decompiling/deobfuscating the code, the cracker can still compare the running version with the original. It might delay the cracker or stop the less exp...
How to refresh app upon shaking the device?
...er should be deactivated onPause and activated onResume to save resources (CPU, Battery).
The code assumes we are on planet Earth ;-) and initializes the acceleration to earth gravity. Otherwise you would get a strong "shake" when the application starts and "hits" the ground from free-fall. However,...