primesieve x64 7.6 freeware

primesieve x64 is written in portable C++, its speed is mainly due to the segmentation of the sieve of Eratosthenes which prevents cache misses when crossing-off multiples in the sieve array and the use of a bit array instead of the more widely used byte (boolean) array.

Author Kim Walisch
Released 2021-01-07
Filesize 287 kB
Downloads 482
OS Windows 7 x64, Windows 8 x64, Windows 10 x64
Installation Instal And Uninstall
Keywords x64 Eratosthenes sieve, x64 prime number sieve, x64 filter prime number, x64 Eratosthenes, x64 prime number, x64 sieve
Users' rating
(6 rating)
primesieve x64 - Freeware Download Notice

primesieve x64 Free Download - we do not host any primesieve x64 torrent files or links of primesieve x64 on,, etc. All primesieve x64 download links are direct primesieve x64 download from publisher site or their selected mirrors.

primesieve x64 freeware - The Latest User Reviews
primesieve x64 freeware - The Latest Versions History
7.6 Jan 7, 2021 New Release The primesieve GUI application has been deprecated/removed. It only works with QT4 which has reached end-of-life.
Get rid Travis-CI because it is not free anymore.
CpuInfo.cpp: Linux kernel CPU detection has been updated.
CpuInfo.cpp: Add workaround for sysctl bug (macOS & iOS).
Erat.hpp: Use CTZ instruction on x64 and ARM64 CPUs.
config.hpp: Tune FACTOR_ERATSMALL factor.
EratSmall.cpp: Get rid of goto.
EratSmall.cpp: Optimize switch statement.
EratSmall.cpp: Annotate switch cases with fallthrough.
EratMedium.cpp: Get rid of goto.
EratMedium.cpp: Optimize switch statements.
EratMedium.cpp: Annotate switch cases with fallthrough.
EratBig.cpp: Simplify main sieving loop.
doc/ libprimesieve C code examples.
doc/ libprimesieve C++ code examples.
5.0 Jan 27, 2014 New Release primesieve-5.0 is a major new release that makes using the primesieve
library much more convenient. primesieve now includes C bindings for
all of its functions so that it can easily be used in languages other
than C++. I moved primesieve's build system to GNU Autotools and
Libtool which is more reliable than the hand written Makefile I used
primesieve-5.0 features a new API completely written from scratch that
is easier to use and that will not break binary compatibility with
every new release. The new API is not backwards compatible but porting
your code to the new API should be done quickly.
I bought a domain for primesieve and moved primesieve's repository
from Google Code (SVN) to GitHub (git)
Other changes:
New primesieve::iterator class that provides next_prime() and previous_prime() methods.
ParallelPrimeSieve now uses multi-threading by default, it does not care about arithmetic order anymore.
3.6 May 14, 2012 New Release · Built with Intel C++ Compiler 12.1 (Composer XE 2011)
· Minor speed up for small sieving primes ~ 5%

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