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acoye

144 karma · joined July 20, 2015

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acoye··on PhysX SDK 4.0, an Open-Source Physics Engine
This is a logical step to get physx used by AI researchers.
acoye··on Twitter to remove ‘like’ tool in a bid to improve the quality of debate
So if you want to interact, you have to formulate a thought in an elegant message? Most wont pass the barrier of having to think hard about something. (ie. thinking fast and slow / switching from system 1 to system 2 is _hard_)
acoye··on Building DSLs in Swift
> Android's xml files are a pleasure to work with.

I would disagree with this statement.

I hate anything XML when I have to touch it manually. I greatly prefer yaml or even json for something usable by humans.

Autolayout notation can look confusing, but I have a light background in CAD and I reason with Screw theory. IE what are the smallest number of constraint for my system to be stable …

So to me, oddly, I always found Autolayout easy. https://en.wikipedia.org/wiki/Screw_theory

acoye··on Astronauts escape malfunctioning Soyuz rocket
I do agree on the cheap and pragmatic approach, yet they could display actual telemetry over the 3d render. Speeds do not match reality in graphs. It is not a movie but Science to me here.

I'd love to hear from a SpaceX engineer if their webcasts indeed shows live telemetry (speed / altitude) or not. Also SpaceX's webcasts illustrations looks like they run in a game engine which is both cheap and highly customizable with input data.

acoye··on Astronauts escape malfunctioning Soyuz rocket
This video has the crew audio with a translator. It amazes me that the telemetry is faked (all is good and well), yet the audio is legit. https://youtu.be/c0l5QBmqQoI?t=271
acoye··on A remaster with no old code: Crash Bandicoot was rebuilt nearly from scratch
They rebuilt a game in Unreal 4. So yeah from the ps1 era almost everything had to be redone from scratch. I fail to see the problem here. Did player expected them to package the optimized lisp virtual machine they had back then in UE4?
acoye··on LLVM 7.0.0 released
Building MESA I had to change my script from "6.0" to "7" indeed.
acoye··on The iPhone SE was the best phone Apple ever made, and now it’s dead
R is the new SE. The profitability was too low on SE or was not shouting enough ´luxury´ so they retired it for a more expensive yet still value targeted new model.
acoye··on x86 finds its way into the iPhone
This comment is down-voted as other archs are vulnerable to Spectre/Meltdown not just x86. True.

Yet, as of right now Intel as not fixed in silicon all spectre/meltdown issues. Given the R&D / QA time on a specific arch, I'd bet it is still hardware flawed if they took an of the shelf in house x86 design. Atom based maybe?

So I do not feel confident for a chip that runs the broadband and moreover one that is not auditable by the end user (unlike a main CPU would be).

I would be supper interested in knowing if the reverse engineering show traces of retpolines.

acoye··on Nvidia Turing Architecture White Paper. [pdf]
As I understand the paper they caught up with AMD's GCN async compute as Turing features a hardware scheduler.

> Turing GPUs also inherit all the enhancements to the NVIDIA CUDA™ platform introduced in the Volta architecture that improve the capability, flexibility, productivity, and portability of compute applications.Features such as independent thread scheduling, hardware-accelerated Multi Process Service (MPS) with address space isolation for multiple applications, and Cooperative Groups are all part of the Turing GPU architecture.

acoye··on GPU Headaches: Notes on Installing CUDA, CuDNN and Tensorflow on Manjaro
… Which is somewhat sad, given AMD's open drivers are terrific and a pleasure to use on my machine, even for Steam games.
acoye··on GPU Headaches: Notes on Installing CUDA, CuDNN and Tensorflow on Manjaro
Do you want to know pain? Try to use OpenCL with a GCN1 GPU (AMD 7970) with TF.

You can more or less do it with SYCL / ComputeCPP, which is great, but it is not trivial either. It does require you to compile TF and may fail to operate some operations.

Full disclosure I have not retried it recently, last time was 6 month aago, and a great amount of work is done on the SYCL / ComputeCPP front.

acoye··on China Built the World’s Largest Telescope, Then Came the Tourists
At Arecibo radio telescope they do not allow something like a single microwave oven in a large radius. So for something that is intended to be even more sensible … yeah
acoye··on Deprecating the Observer Pattern (2010) [pdf]
Something I find mildly amusing; To implement a RX framework in a language like Swift, one should heavily use observing.
acoye··on No Paper Is That Good
Bitcoin's paper was that good.

Simple.

Easy to read.

Easy to replicate (a poc in python is easy)

It is a recent key innovation (the blockchain tech).

acoye··on Can France Create Its Own MIT?
Actually MIT was modelled from the French "École Polytechnique". In a same way like the white house was a copy of "Château de Rastignac".
acoye··on The Cyberpunk Sensibility (2016)
Yeah Cyberpunk 2077 has a je-ne-sais-quoi that reminds me of "Ready player one". The 80's are there.
acoye··on The Cyberpunk Sensibility (2016)
"The cyberpunk mental model [...] can be risky because it’s quite cynical and pessimistic. We expect the worst of people."

If that does model best mankind and society, maybe it is not that much cynical and pessimistic but realistic.

That said, it is only a model, a tool to better understand ourselves.

acoye··on Building the Software 2.0 Stack by Andrej Karpathy [video]
This reminds me of a relevant XKCD, https://xkcd.com/1838/

Given the shown technique to build a state of the art neural net, I wonder what QA will look like and if we will be able to reach a sufficiently low probability of failure.

5 sigma reliability will be necessary at least in some fields for humans to accept to rely on it (like autonomous driving)

acoye··on Snips AIR: an open source, private, blockchain-based alternative to Amazon Echo
Chain of trust for software update/delivery from what I understand. Nothing good ol' RSA signing could not solve if that is the case.
acoye··on Snips AIR: an open source, private, blockchain-based alternative to Amazon Echo
"[…] Download features from the OpenSkillStore, based on the blockchain"

I wonder, does it work with a contract on a public blockchain like ethereum or does it run on Snips's own blockchain?

If so is there a white / yellow paper we can dig into?

acoye··on The Ulam Spiral of Primes (2010)
Numberfile did a nice video on this phenomena. https://www.youtube.com/watch?v=iFuR97YcSLM
acoye··on Ask HN: Is no anti-virus software still best practice for mac?
Well MacOS (an Windows) have built-in ones. MacOS has XProtect between other things like app signing.

Also note that for Spectre and Meltdown 3rd party antivir had kernel patches delayed as they can become sort of an issue.

acoye··on Safe injection sites in San Francisco could be first in the US
I lived in SF for a couple years near TL and I saw people doing it on the streets.

To me this site is a good thing, harm reduction policies have shown good track record. They work.

A good exemple is the "première ligne" association in Switzerland. They have a big site in Geneva, you can see the building for the train station.

I would recommend a read of their website. http://www.premiereligne.ch/

acoye··on Intel Has a Big Problem
… Or a Threadripper.
acoye··on Why a Bitcoin future will always end up in centralization
The author takes a large enough block for Visa or Master card volume like transaction and makes an educated guess.

His argument is _true_ in the same way saying that you could only fit a calculator in a hangar using vacuum tubes is true. If Cryptocurrencies are to succeed they need their silicon transistor.

To me the transistor of crypto is sharding. I'd bet Vitalik knows that and that is why he is putting R&D into it. I do hope Ethereum (or another one) succeed.

acoye··on Why you can’t buy a high-end graphics card at Best Buy
That may not impact the mining speeds that much as most integer operations would then be done using floats.

Also mining speeds are way more bottlenecked by memory speeds than GPU speeds these days.

acoye··on WebGPU demos
I peeked at the source code of the shaders, it looks like it is metal for the web. I don't get how a closed API like metal could be the future of an open internet. Yet it can start a discussion.
acoye··on Fifty Years of Shannon Theory (1998) [pdf]
You might want to check out "Turbo code" It approaches the channel max capacity and is the basis for modern cellular internet (3G/4G).

It is also used for deep space communications, where squeezing every bit is essential.

The wikipedia article is quite well crafted. https://en.wikipedia.org/wiki/Turbo_code

For a sample CPP implementation can be found here. http://the-art-of-ecc.com/topics.html

acoye··on Reading privileged memory with a side-channel
> We are posting before an originally coordinated disclosure date of January 9, 2018 because of existing public reports and growing speculation in the press and security research community about the issue, which raises the risk of exploitation.
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