Question

Can I use the AVX FMA units to do bit-exact 52 bit integer multiplications?

score 2.7k · Answer 1 · 2016-12-30 22:54:56

2.7k

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Can I use the AVX FMA units to do bit-exact 52 bit integer multiplications?

Published on 30 December 2016 at 22:54

score 2.2k · Answer 2 · 2017-01-07 23:53:26

2.2k

Views

Understanding FMA instructions performance

Published on 07 January 2017 at 23:53

score 329 · Answer 3 · 2017-09-02 07:11:59

329

Views

What is the instruction number per cycle in fma with minus?

Published on 02 September 2017 at 07:11

score 966 · Answer 4 · 2020-10-05 11:12:52

966

Views

How to disable fma3 instructions in gcc

Published on 05 October 2020 at 11:12

score 18.5k · Answer 5 · 2014-01-08 16:37:00

18.5k

Views

FMA3 in GCC: how to enable

Published on 08 January 2014 at 16:37

score 82 · Answer 6 · 2023-10-29 13:27:55

82

Views

Why this AVX2 slowdown with FMA x86 MS C Compiler?

Published on 29 October 2023 at 13:27

score 157 · Answer 7 · 2023-11-26 17:32:32

157

Views

Can we replace XOR with multiply-add?

Published on 26 November 2023 at 17:32

score 1.7k · Answer 8 · 2011-10-20 20:01:15

1.7k

Views

Does VS2010 SP1 support only part of the AVX instruction set?

Published on 20 October 2011 at 20:01

score 550 · Answer 9 · 2020-12-19 13:50:43

550

Views

GCC inclusion of AVX512's "Fused Multiply Add" instructions when compiling for Cascade-Lake processors

Published on 19 December 2020 at 13:50

score 188 · Answer 10 · 2022-04-11 13:44:15

188

Views

Latency and number of FMA units

Published on 11 April 2022 at 13:44

score 3.1k · Answer 11 · 2012-08-17 19:03:00

3.1k

Views

fmad=false gives good performance

Published on 17 August 2012 at 19:03

score 3.8k · Answer 12 · 2014-01-10 17:43:23

3.8k

Views

Will gfortran or ifort compilers wisely use SIMD instructions when summing the product of two arrays?

Published on 10 January 2014 at 17:43

score 510 · Answer 13 · 2016-02-16 17:32:46

510

Views

What do I need to do so GCC 4.9 recognizes the opportunity to use AVX FMA?

Published on 16 February 2016 at 17:32

score 1.7k · Answer 14 · 2016-02-25 19:51:28

1.7k

Views

Intel FMA Instructions Offer Zero Performance Advantage

Published on 25 February 2016 at 19:51

score 1.2k · Answer 15 · 2022-03-26 10:17:15

1.2k

Views

Fastest way to multiply and sum/add two arrays (dot product) - unaligned surprisingly faster than FMA

Published on 26 March 2022 at 10:17

score 291 · Answer 16 · 2021-02-04 22:53:08

291

Views

How to find magic multipliers for divisions by constant on a GPU?

Published on 04 February 2021 at 22:53

score 393 · Answer 17 · 2017-12-10 13:43:02

393

Views

Why is this code using VMULPD to write registers that will be overwritten by VFMADD? Isn't that useless?

Published on 10 December 2017 at 13:43

score 85 · Answer 18 · 2022-05-30 11:17:12

85

Views

Deleteing initialization leads to avx2 fma performance drop. Why?

Published on 30 May 2022 at 11:17

score 168 · Answer 19 · 2022-11-13 18:53:59

168

Views

GCC 12 (minGW 64): how to enable fused multiply add code generation

Published on 13 November 2022 at 18:53

score 108 · Answer 20 · 2022-11-28 03:42:19

108

Views

v4fmaddps instructions for packed 32-bit integers

Published on 28 November 2022 at 03:42

List Question

Can I use the AVX FMA units to do bit-exact 52 bit integer multiplications?

Understanding FMA instructions performance

What is the instruction number per cycle in fma with minus?

How to disable fma3 instructions in gcc

FMA3 in GCC: how to enable

Why this AVX2 slowdown with FMA x86 MS C Compiler?

Can we replace XOR with multiply-add?

Does VS2010 SP1 support only part of the AVX instruction set?

GCC inclusion of AVX512's "Fused Multiply Add" instructions when compiling for Cascade-Lake processors

Latency and number of FMA units

fmad=false gives good performance

Will gfortran or ifort compilers wisely use SIMD instructions when summing the product of two arrays?

What do I need to do so GCC 4.9 recognizes the opportunity to use AVX FMA?

Intel FMA Instructions Offer Zero Performance Advantage

Fastest way to multiply and sum/add two arrays (dot product) - unaligned surprisingly faster than FMA

How to find magic multipliers for divisions by constant on a GPU?

Why is this code using VMULPD to write registers that will be overwritten by VFMADD? Isn't that useless?

Deleteing initialization leads to avx2 fma performance drop. Why?

GCC 12 (minGW 64): how to enable fused multiply add code generation

v4fmaddps instructions for packed 32-bit integers

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