Question

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

score 2.8k · Answer 1 · 2025-01-02 22:59:10

2.8k

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

Published on 02 January 2025 at 22:59

score 2.3k · Answer 2 · 2025-01-01 17:15:46

2.3k

Views

Understanding FMA instructions performance

Published on 01 January 2025 at 17:15

score 361 · Answer 3 · 2025-01-03 13:18:46

361

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

Published on 03 January 2025 at 13:18

score 1k · Answer 4 · 2025-01-02 22:44:37

1k

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How to disable fma3 instructions in gcc

Published on 02 January 2025 at 22:44

score 18.5k · Answer 5 · 2025-01-02 22:41:27

18.5k

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FMA3 in GCC: how to enable

Published on 02 January 2025 at 22:41

score 103 · Answer 6 · 2025-01-02 22:50:13

103

Views

Why this AVX2 slowdown with FMA x86 MS C Compiler?

Published on 02 January 2025 at 22:50

score 187 · Answer 7 · 2025-01-02 22:45:51

187

Views

Can we replace XOR with multiply-add?

Published on 02 January 2025 at 22:45

score 1.7k · Answer 8 · 2025-01-02 22:53:52

1.7k

Views

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

Published on 02 January 2025 at 22:53

score 586 · Answer 9 · 2025-01-02 23:02:05

586

Views

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

Published on 02 January 2025 at 23:02

score 224 · Answer 10 · 2025-01-02 22:42:56

224

Views

Latency and number of FMA units

Published on 02 January 2025 at 22:42

score 3.2k · Answer 11 · 2025-01-02 22:43:06

3.2k

Views

fmad=false gives good performance

Published on 02 January 2025 at 22:43

score 3.8k · Answer 12 · 2025-01-02 23:02:04

3.8k

Views

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

Published on 02 January 2025 at 23:02

score 516 · Answer 13 · 2025-01-02 22:58:48

516

Views

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

Published on 02 January 2025 at 22:58

score 1.7k · Answer 14 · 2025-01-02 22:51:49

1.7k

Views

Intel FMA Instructions Offer Zero Performance Advantage

Published on 02 January 2025 at 22:51

score 1.2k · Answer 15 · 2025-01-02 23:01:36

1.2k

Views

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

Published on 02 January 2025 at 23:01

score 298 · Answer 16 · 2025-01-02 22:55:06

298

Views

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

Published on 02 January 2025 at 22:55

score 400 · Answer 17 · 2025-01-02 23:02:02

400

Views

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

Published on 02 January 2025 at 23:02

score 90 · Answer 18 · 2025-01-02 22:55:05

90

Views

Deleteing initialization leads to avx2 fma performance drop. Why?

Published on 02 January 2025 at 22:55

score 174 · Answer 19 · 2025-01-02 22:55:04

174

Views

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

Published on 02 January 2025 at 22:55

score 114 · Answer 20 · 2025-01-04 16:39:03

114

Views

v4fmaddps instructions for packed 32-bit integers

Published on 04 January 2025 at 16:39

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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