Nvidia fixes a weird GPU driver bug that tanked CPU performance

Nvidia’s GPU driver was recently found to have a bug that was spiking processor usage after quitting out of a game, but the good news is this problem has been fixed in a freshly released hotfix.

Neowin reports that the affected GeForce driver version, 531.18, now has a hotfix (531.26), and it cures two issues including the gremlin that was eating CPU resources.

This was an odd bug which saw an Nvidia Container process hang around after you’d stopped playing a game and exited. Going into Task Manager, gamers were seeing CPU resources being eaten up to the tune of 10% or even 15%, causing some slowdown to the host gaming PC.

If you didn’t open Task Manager and notice this process, then manually close it, your machine could run rather sluggishly and you’d have no idea why.

Still, the cure has arrived now, and if you were holding off updating to version 531.18 due to the presence of this bug, you can now go ahead.


Analysis: Notebook crashing blues also fixed

This fix has been deployed quickly, which is good to see. Nvidia chose the route of a hotfix because that can be pushed out immediately to those with GeForce graphics cards, rather than having to wait for a cure bundled with the next version of Team Green’s graphics driver.

The hotfix also comes packing a resolution for a second problem. Namely a random crash (stop error) happening with some laptops that have GeForce GTX 10 Series, or MX 250 / MX 350 mobile GPUs.

Both of these are quite nasty little glitches, so it’s good to see them stamped out by Nvidia in a swift manner. Indeed, because there was apparently some noticeable slowdown evident with the persisting Nvidia Container bug, slightly more paranoid types may even have wondered if something had happened malware-wise, as sudden system slowdown or lack of responsiveness can be a symptom of infection – so they may have worried unduly.

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Little-known Japanese CPU threatens to make Nvidia, Intel and AMD obsolete in HPC market

Sandia National Laboratories has announced it will be the first Department of Energy labs in the US to deploy the Fujitsu A64FX, the only ARM-based processor designed from ground up for HPC projects and supercomputers.

Fujitsu is known primarily for its business laptops, tablets and desktops, but is a behemoth in its own right when it comes to processors, having been in the business for well over half a century.

Launched in 2019, the CPU has 48 cores, a theoretical peak performance of 3.38 TFLOPS, runs at 2.2GHz and has 32GB HBM2 memory on the die itself.

What makes it ideal for the HPC market is that it provides far higher bandwidth performance between memory and the CPU – up to 1TBps. Moving data to and from the CPU is the biggest obstacle by far to what researchers refer to as exascale computing.

What makes the A64FX even more exciting is that Fujitsu wants the technology to trickle down to hyperscalers and major cloud computing giants so that the masses can benefit too.

Given it is based on ARM architecture, it can (and has) run Linux distributions out of the box and even Microsoft Windows.

It is considered a general purpose CPU, but surpasses even GPUs from Nvidia and AMD on the all-important metric of performance per watt. Indeed, a 768-CPU prototype sits on top of the Green500 list – the leaderboard for supercomputers that deliver the most power per watt.

The A64FX was designed expressly to power the successor of Japan’s main supercomputer, the K, which was decommissioned back in August 2019. 

Its replacement – the Fugaku – is expected to be 100 times faster when it launches later this year, will run on a Linux distribution called McKernel and will reach a staggering 400 petaflops. The aim is for it to be the first supercomputer to hit one exaflop when fully deployed with half a million processors buzzing.

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