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Libdivide Alternatives
Similar projects and alternatives to libdivide
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rust-decimal
Decimal number implementation written in pure Rust suitable for financial and fixed-precision calculations.
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fastmod
A C/C++ header file for fast 32-bit division remainders (and divisibility tests) on 64-bit hardware. (by lemire)
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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a better libdivide alternative or higher similarity.
libdivide reviews and mentions
Posts with mentions or reviews of libdivide.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2022-05-18.
- Why is division so much more complex than other arithmetic operations?
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How to implement decimal types in a language's VM?
There are many optimisations to be done here. Perhaps most importantly, modulo can be implemented performantly using techniques such as those used by libdivide. You may use machine integers to represent such variables when their bound is such that an intermediate value would never overflow; and static analysis may identify opportunities to perform many calculations in sequence before reducing (but when operating on wide or extended-precision integers, this may hurt more than it helps).
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fastdiv: a crate for fast division by a runtime constant
How does this compare to libdivide (other than the language)? https://libdivide.com/
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Dividing faster than the DIV instruction
There is also libdivide https://github.com/ridiculousfish/libdivide
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Why do people always say that modulo is bad and process-intensive? Should I use something else if I want the remainder of a number?
I think you're referring to libdivide
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Benchmarking division and libdivide on Apple M1 and Intel AVX512
From a quick glance at your code, I notice that parts like these could definitely be optimized better. The NEON code looks better written, probably helped by the fact that it's often easier to code good NEON whilst AVX can require you to be "too clever" at times. Regardless, most of the instructions issued aren't multiplies, hence my doubt that multiply throughput is the issue.
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Ideal divisors: when a division compiles down to just a multiplication
See also https://libdivide.com/ , when you need to repeatedly divide by a constant that isn't known until runtime.
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Bit-shifting or other tricks for general x/y possible?
Yes, you can generate specialized division algorithms for specific divisors. Here is an example of a library implementing (or, generating) such algorithms.
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A note from our sponsor - SaaSHub
www.saashub.com | 3 May 2024
Stats
Basic libdivide repo stats
8
1,042
4.8
about 1 month ago
ridiculousfish/libdivide is an open source project licensed under GNU General Public License v3.0 or later which is an OSI approved license.
The primary programming language of libdivide is C++.
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