CPU fun

Is Improving Software Performance Now Bad?

NVidia® stock-holders seem to think so.

Mar 18 • 

Jim Cownie

2

2

September 2024

NVidia® "Grace" 72 Core Processor Cache Micro-Benchmarks

The gory details of a recent ARM® architecture machine

Sep 17, 2024 • 

Jim Cownie

6

February 2024

Fun with Serial and Parallel Sum Reductions

What is the "right" answer?

Feb 22, 2024 • 

Jim Cownie

3

October 2023

Is Mixing OpenMP® Runtimes Safe?

Note that Betteridge's law applies!

Oct 31, 2023 • 

Jim Cownie

1

March 2023

Enemies and Opponents

A completely non-technical article about organisational psychology based on a joke.

Mar 7, 2023 • 

Jim Cownie

2

December 2022

Presenting Parallel Performance (2)

When presenting scaling, what should be on the X-axis?

Dec 15, 2022 • 

Jim Cownie

Presenting Parallel Performance (1)

Part 1: Do you really want "speedup"?

Dec 15, 2022 • 

Jim Cownie

3

1

September 2022

Is Fortran "a dead language"?

Some C++ folk seem to think so, but they're wrong!

Sep 22, 2022 • 

Jim Cownie

11

10

July 2022

Elemental Encodings

An off-topic result of covid induced feverish thinking!

Jul 29, 2022 • 

Jim Cownie

1

1

May 2022

Where's the Race Condition?

But the code works on AArch64, how can it fail on X86_64?!

May 27, 2022 • 

Jim Cownie

2

2

March 2022

To sched_yield() Or Not To sched_yield()?

Is Linux' sched_yield() useful while polling, or merely "sound and fury signifying nothing"?

Mar 31, 2022 • 

Jim Cownie

2

1

February 2022

Macro Magic

Using a FOREACH macro and a few other amusements

Feb 11, 2022 • 

Jim Cownie