Re: Popcount optimization using AVX512
От
Nathan Bossart
Тема
Re: Popcount optimization using AVX512
Дата
Msg-id
20240318212600.GA655785@nathanxps13
Ответ на
RE: Popcount optimization using AVX512 (Amonson, Paul D)
Список
Дерево обсуждения
Popcount optimization using AVX512 "Amonson, Paul D" <paul.d.amonson@intel.com>
Re: Popcount optimization using AVX512 Matthias van de Meent <boekewurm+postgres@gmail.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
Re: Popcount optimization using AVX512 Tom Lane <tgl@sss.pgh.pa.us>
Re: Popcount optimization using AVX512 Noah Misch <noah@leadboat.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
Re: Popcount optimization using AVX512 Noah Misch <noah@leadboat.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
RE: Popcount optimization using AVX512 "Shankaran, Akash" <akash.shankaran@intel.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
RE: Popcount optimization using AVX512 "Shankaran, Akash" <akash.shankaran@intel.com>
Re: Popcount optimization using AVX512 Alvaro Herrera <alvherre@alvh.no-ip.org>
Re: Popcount optimization using AVX512 Alvaro Herrera <alvherre@alvh.no-ip.org>
Re: Popcount optimization using AVX512 Andres Freund <andres@anarazel.de>
Re: Popcount optimization using AVX512 Noah Misch <noah@leadboat.com>
Re: Popcount optimization using AVX512 Andres Freund <andres@anarazel.de>
Re: Popcount optimization using AVX512 Noah Misch <noah@leadboat.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
RE: Popcount optimization using AVX512 "Amonson, Paul D" <paul.d.amonson@intel.com>
Re: Popcount optimization using AVX512 Alvaro Herrera <alvherre@alvh.no-ip.org>
Re: Popcount optimization using AVX512 Alvaro Herrera <alvherre@alvh.no-ip.org>
RE: Popcount optimization using AVX512 "Amonson, Paul D" <paul.d.amonson@intel.com>
Re: Popcount optimization using AVX512 Andres Freund <andres@anarazel.de>
RE: Popcount optimization using AVX512 "Amonson, Paul D" <paul.d.amonson@intel.com>
Re: Popcount optimization using AVX512 Andres Freund <andres@anarazel.de>
RE: Popcount optimization using AVX512 "Amonson, Paul D" <paul.d.amonson@intel.com>
RE: Popcount optimization using AVX512 "Amonson, Paul D" <paul.d.amonson@intel.com>
RE: Popcount optimization using AVX512 "Amonson, Paul D" <paul.d.amonson@intel.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
RE: Popcount optimization using AVX512 "Amonson, Paul D" <paul.d.amonson@intel.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
RE: Popcount optimization using AVX512 "Amonson, Paul D" <paul.d.amonson@intel.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
RE: Popcount optimization using AVX512 "Amonson, Paul D" <paul.d.amonson@intel.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
RE: Popcount optimization using AVX512 "Amonson, Paul D" <paul.d.amonson@intel.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
RE: Popcount optimization using AVX512 "Amonson, Paul D" <paul.d.amonson@intel.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
RE: Popcount optimization using AVX512 "Amonson, Paul D" <paul.d.amonson@intel.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
RE: Popcount optimization using AVX512 "Amonson, Paul D" <paul.d.amonson@intel.com>
RE: Popcount optimization using AVX512 "Amonson, Paul D" <paul.d.amonson@intel.com>
Re: Popcount optimization using AVX512 David Rowley <dgrowleyml@gmail.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
RE: Popcount optimization using AVX512 "Amonson, Paul D" <paul.d.amonson@intel.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
Re: Popcount optimization using AVX512 David Rowley <dgrowleyml@gmail.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
RE: Popcount optimization using AVX512 "Amonson, Paul D" <paul.d.amonson@intel.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
Re: Popcount optimization using AVX512 David Rowley <dgrowleyml@gmail.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
Re: Popcount optimization using AVX512 David Rowley <dgrowleyml@gmail.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
RE: Popcount optimization using AVX512 "Amonson, Paul D" <paul.d.amonson@intel.com>
Re: Popcount optimization using AVX512 David Rowley <dgrowleyml@gmail.com>
RE: Popcount optimization using AVX512 "Amonson, Paul D" <paul.d.amonson@intel.com>
Re: Popcount optimization using AVX512 David Rowley <dgrowleyml@gmail.com>
RE: Popcount optimization using AVX512 "Amonson, Paul D" <paul.d.amonson@intel.com>
RE: Popcount optimization using AVX512 "Amonson, Paul D" <paul.d.amonson@intel.com>
Re: Popcount optimization using AVX512 Tom Lane <tgl@sss.pgh.pa.us>
Re: Popcount optimization using AVX512 Joe Conway <mail@joeconway.com>
RE: Popcount optimization using AVX512 "Amonson, Paul D" <paul.d.amonson@intel.com>
RE: Popcount optimization using AVX512 "Amonson, Paul D" <paul.d.amonson@intel.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
RE: Popcount optimization using AVX512 "Amonson, Paul D" <paul.d.amonson@intel.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
RE: Popcount optimization using AVX512 "Amonson, Paul D" <paul.d.amonson@intel.com>
Re: Popcount optimization using AVX512 Alvaro Herrera <alvherre@alvh.no-ip.org>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
RE: Popcount optimization using AVX512 "Amonson, Paul D" <paul.d.amonson@intel.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
RE: Popcount optimization using AVX512 "Amonson, Paul D" <paul.d.amonson@intel.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
Re: Popcount optimization using AVX512 Tom Lane <tgl@sss.pgh.pa.us>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
RE: Popcount optimization using AVX512 "Shankaran, Akash" <akash.shankaran@intel.com>
RE: Popcount optimization using AVX512 "Amonson, Paul D" <paul.d.amonson@intel.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
RE: Popcount optimization using AVX512 "Amonson, Paul D" <paul.d.amonson@intel.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
Re: Popcount optimization using AVX512 Alvaro Herrera <alvherre@alvh.no-ip.org>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
Re: Popcount optimization using AVX512 Ants Aasma <ants.aasma@cybertec.at>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
Re: Popcount optimization using AVX512 Alvaro Herrera <alvherre@alvh.no-ip.org>
Re: Popcount optimization using AVX512 Tom Lane <tgl@sss.pgh.pa.us>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
Re: Popcount optimization using AVX512 Ants Aasma <ants.aasma@cybertec.at>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
Re: Popcount optimization using AVX512 David Rowley <dgrowleyml@gmail.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
Re: Popcount optimization using AVX512 Ants Aasma <ants.aasma@cybertec.at>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
Re: Popcount optimization using AVX512 Ants Aasma <ants.aasma@cybertec.at>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
Re: Popcount optimization using AVX512 David Rowley <dgrowleyml@gmail.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
Re: Popcount optimization using AVX512 David Rowley <dgrowleyml@gmail.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
Re: Popcount optimization using AVX512 Tom Lane <tgl@sss.pgh.pa.us>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
Re: Popcount optimization using AVX512 Tom Lane <tgl@sss.pgh.pa.us>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
RE: Popcount optimization using AVX512 "Shankaran, Akash" <akash.shankaran@intel.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
Re: Popcount optimization using AVX512 Ants Aasma <ants.aasma@cybertec.at>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
RE: Popcount optimization using AVX512 "Amonson, Paul D" <paul.d.amonson@intel.com>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
Re: Popcount optimization using AVX512 Bruce Momjian <bruce@momjian.us>
Re: Popcount optimization using AVX512 Alvaro Herrera <alvherre@alvh.no-ip.org>
Re: Popcount optimization using AVX512 Nathan Bossart <nathandbossart@gmail.com>
On Mon, Mar 18, 2024 at 09:22:43PM +0000, Amonson, Paul D wrote: >> The only reason I left it out was because I couldn't convince myself that it >> wasn't dead code, given we assume that popcntq is available in >> pg_popcount64_fast() today. But I don't see any harm in adding that just in >> case. > > I am not sure how to read this. Does this mean that for popcount32_fast > and popcount64_fast I can assume that the x86(_64) instructions exists > and stop doing the runtime checks for instruction availability? I think my question boils down to "if pg_popcount_available() returns true, can I safely assume I'm on a 64-bit machine?" -- Nathan Bossart Amazon Web Services: https://aws.amazon.com
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