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Robadob

938 karma · joined March 22, 2013

Research software engineer at University of Sheffield (UK). Spend most my time developing FLAMEGPU2, a CUDA based framework for large-scale complex simulations.
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Robadob··on Manufacturer 'make worthless' users devices after some stolen from a warehouse
Is this really that different from blocking stolen mobile phones from connecting to mobile networks via their IMEI number?

The database behind that is apparently shared internationally between mobile networks, and most people would find a phone unable to connect to anything but WiFi useless.

Robadob··on Apple’s HomePod Isn’t a Hot Seller
The article includes market share and revenue share for Sonos One, which HomePod is higher in both.
Robadob··on Google Provides Free Nvidia K80 GPUs for Anyone to Train Deep Learning Models
It's previous gen hardware, so presumably the only cost to google is energy usage and similar. They probably use the newer p100 and v100 cards internally which are significantly faster for deep learning.
Robadob··on What sugar does to your brain
The article regularly conflates high sugar, with weight gain (aka calorific surplus). So it's hard to draw any useful conclusions from it.
Robadob··on Refresh Is Sacred
I had this bug on Google Drive a few months ago, as I recall the solution was to unlink-relink my account.
Robadob··on Uber to Lose Private Hire Licence in London
Expensive relative to other European capitals though (the unions control over TFL in part to blame for that though).
Robadob··on Oculus Research to Present Focal Surface Display Discovery at SIGGRAPH
Rather than nausea, I think I've noticed inability to focus on items away from the centre of vision (haven't used VR equipment in about 6 months, might be remembering things wrong), that's what this sounds more like it will address.
Robadob··on Volta: Advanced Data Center GPU
As I recall, Volta (3d memory) has been delayed multiple times due to supply and this is only a very limited release of their highest end hardware for deep learning all pegged for Q3/Q4 release. A field where they haven't really any competition.

Can't imagine we will be seeing any Volta GeForce cards released till next year.

Robadob··on Politically motivated climate data deletions
They don't actually make clear where the information has been deleted from. But to me it sounds alot like the big fuss at the inauguration when Obama's Whitehouse website was archived and replaced with Trump's.

The stated 'The US National Strategy for the Arctic' and 'Implementation Plan for the Strategy', both sound like Obama policy which would have subsequently have been archived.

Blaming Trump for this is facile at best.

http://edition.cnn.com/2017/01/20/politics/obama-white-house...

Robadob··on Software Engineering Internship Amazon Interview Experience
They sometimes use a similar locked down browser (respondus) for in class assessments at my university. Never used it myself, so not sure how similarly fine grained any tracking is.
Robadob··on Our closest worm kin regrow body parts, raising hopes of regeneration in humans
I believe the hairs within the ear also don't regenerate (leading to deafness when damaged through loud noises).
Robadob··on The team behind Cookies is joining Klarna
Their initial launch was to be confined to Germany (as far as I got told by a friend who works at the company), likely reduced the companies visibility.
Robadob··on Google – My Activity
Appears you can actually search your youtube watch history here, I've always been annoyed that you can't inside the actual youtube website when I'm trying to find things I watched a few months earlier.
Robadob··on Why I’m never buying HTC again
There's alot of mixed opinions about HTC customer support on the vive subreddit currently, with people trying to get various HTC vive faults resolved. The secret seems to be that you keep contacting until you get a competent support rep.

I've seen a few people suggest the US support is worse than the EU support, but I've not personally had to deal with HTC support so can't really give any personal anecdotes.

Robadob··on Hello world in every programming language
Java 9 will have 'interactive shell' functionality, 1:40 of the video (on the linked page) they show hello world.

https://blogs.oracle.com/java/entry/jshell_and_relp_in_java

Robadob··on Twitter to Stop Counting Photos and Links in 140-Character Limit
Hasn't twitter been replacing long URLs with their own short URLs for a while now? So this change probably won't make a difference, assuming users will still have to hover the link to see the tooltip of the full URL.
Robadob··on Nvidia GPU-powered autonomous car teaches itself to see and steer
Sadly I don't think the video in this article contains the shorter one from this years GTC keynote of the car driving through a few bushes whilst it was still in the early stages of learning.
Robadob··on Google Calendar for Android: Find a time for my meeting
The ability for event colours to actually be labels (that can be filtered for visibility) would be appreciated, currently you have to setup multiple calendars to achieve this, and that's not too useful if people are trying to track when you're free/busy.
Robadob··on Intel wants USB-C to replace the headphone jack
Presumably this also means it won't fix the issues of noise mentioned in the parent comment.
Robadob··on Lionsgate is making its films available on Steam
>The answer is that the cost of electricity is greater than running this game, even if it's run in the background.

There's a 3rd party application that most serious card idlers use, it uses negligible processing power, just pings the SteamWorks API to say you're playing the game. So if you have steam open in the background, I doubt this adds more visible cost than having a pinned tab in chrome.

http://www.steamidlemaster.com/

Robadob··on The Nvidia DGX-1 Deep Learning Supercomputer in a Box
Have they published a copy of the video of the autonomous car trained with unsupervised learning from the keynote anywhere?

I'd love to show it to my father.

Robadob··on The Nvidia DGX-1 Deep Learning Supercomputer in a Box
I haven't seen any recent benchmarks, but ones from 2011 all seemed to show CUDA and OpenCL on open footing in terms of performance when optimised properly.[1][2] CUDA simply had better library support, and a more well defined and uniform architecture to target. Whereas OpenCL is likely to require more programming to fill in the gaps for library support, and different optimisations depending on the architecture you wish to target. I'm guessing since then, the CUDA compiler may have improved somewhat in terms of optimisation based on some micro-benchmarking research I was looking the at the other day.

There's also Intel's MIC to consider now to, although that has a vastly different architecture to GPU. Again performance was similar between MIC and GPU in 2013[3], each performing better where their architecture was more suited, GPUs were capable of providing double the bandwidth for random access data.

In terms of AMD vs NVIDIA, I've not looked into it, I doubt AMD has anything to really compete with NVIDIAs current GPU accelerated compute lines. However again there was always that distinction (re bitcoin?) that AMD cards have better integer arithmetic and NVIDIA better float arithmetic.

Disclaimer: I use CUDA in my research, never tried OpenCL.

[1] http://arxiv.org/abs/1005.2581

[2] http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=604719...

[3] http://arxiv.org/abs/1311.0378

Robadob··on Why metadata is bad – 3 minute video your Mom will understand
Longer video (25 minutes) of a talk from BlackHat 2013, about how metadata was used to expose an illegal(?) 2003 CIA operation carried out in Italy. It's by a non-tech journalist, so it's also largely non-technical and provides a very interesting overview of what metadata can expose.

https://www.youtube.com/watch?v=BwGsr3SzCZc

Robadob··on Google 'mic drop' Gmail joke for April Fools' day backfires
The actual bug was apparently a little more nuanced than 'for some people'. If you tried the mic drop button in an empty email, it would fail to send. If you then used that same email draft and sent it regularly, the effect would still apply.

https://twitter.com/cabel/status/715769273545785344

Robadob··on Google Posts
Isn't this much the same as the apparent rumours of twitter suppressing conservative voices and hashtags? I've not looked into it in enough detail to decide whether its simply a conspiracy, but many popular internet services could be used to push political agendas.
Robadob··on TP-Link begins router firmware lockdown due to FCC proposed regulation
That stubborn minority chapter is really quite interesting, shame the book isn't available yet. Think I'll look into some of the authors prior books when I next run out.
Robadob··on Judge tosses proposed class action accusing Google of CAPTCHA fraud
Surely the spare word allows the dictionary of potential CAPTCHA words to add a new word for every CAPTCHA solved (sure they probably run them past many users for validation purposes). This effectively allows the CAPTCHA service's dictionary to scale/evolve continuously, preventing an anti-CAPTCHA service from 'learning' the whole dictionary.

I thought this was the entire point of re-captcha, so regardless of the 'time necessary to complete' element, their case doesn't seem very well thought out.

Robadob··on ‘Making a Murderer’ Left Out Crucial Facts, Prosecutor Says
I just finished watching this series last night, shortly after I noticed this (potential spoiler) had appeared on twitter. It certainly adds credence to their documentary if it is infact honest.

https://twitter.com/TODAYshow/status/684373410038718464

(In the video attached to the tweet, one of the creators of the documentary claims they have since been contacted by one of the jurors from Steven Avery's trial, who stated they felt he was innocent however voted guilty as they feared for their personal safety.)

Robadob··on Rowhammer.js: Root privileges for web apps?
Interestingly, in response to the first question they state that allegedly some brands of ECC memory are also vulnerable (by also hammering the checksum rows).
Robadob··on Walmart Pay
Tesco in the UK have Scan-as-you-Shop, which sounds similar to your Scan-and-Go, the prime difference would be that you are given a dedicated device for doing the scanning rather than requiring you phone.

I've used this regularly for the past few months and had no real issues with it.

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