HN user
Thanks for pointing out your article about the 76477. Fascinating stuff.
As for my second paragraph about "digital-analog", this reference on VCO-based quantizers [1] is not the one I remember but I think is related. Not that I really understand the intricacies, but it's a way of doing analog at low-voltages and finer geometries.
[1] http://ewh.ieee.org/r5/central_texas/cas_ssc/meetings/2012/1...
Does anyone have a good reference on how analog is done on logic processes, specifically the bits that have to interface off the chip, like gpio, lvds, and serdes. I'd much appreciate it.
There's something I once encountered, but can't find the reference to, that suggested a kind of "digital-analog" process whereby voltage levels were replaced by timing measurement (?) due to the limits of feature size in analog design. I'm not in the field so forgive my ignorance.
This following a fantastic book, with good exercises, and most importantly it includes applications:
Real Analysis and Applications by Davidson and Donsig
Why would you link directly to this?
Anyway, anybody who's anybody knows that "Théorie des espèces et combinatoire des structures arborescentes" is what you should be reading, since the later English version isn't as good.
Is there a story here?
Congratulations. I hope Samsung nurtures the technical excellence at Joyent.
Please, please continue to develop your public cloud offerings. Having options other that the myopic, me-too, feature-matching, monoculture that is AWS/GCE/Azure is incredibly important.
That said, for my use profile, you guys need to work on your price competitiveness. Hopefully Samsung will inject the necessary cash for economies-of-scale.
Bitcoin is simply going through a discontinuity brought on by a fixed blocksize. Personally, I feel uncertainty is the real issue. The "community" should either accept this, or opt for a potentially unlimited ceiling (limited by physics and network size and topology).
If you choose to remain with the fixed blocksize, then you're betting the system will reach another equilibrium (which may be total collapse). This equilibrium will revolve a natural evolution in the pricing of transactions.
Either way, at some other point in the future another source of discontinuity will be the circulation limit. Again, which may or may not kill the system.
Bitcoin is simply evolving, as it necessarily needs to.
It's definitely interesting to watch as an outsider.
Here is a math-focused submission from way back [0] where I made some suggestions that I stand by.
There is a sort of analogue to this: parents praising their children as beautiful/pretty or brave/strong. Both vacuously reduce the childs ability to reflect genuinely on their strengths and their source of self-worth. Beauty (or the appreciation of) becomes solely reduced to the physical (and external), and courage reduced to dare-devilism/ego-centrism instead of the appreciation of fear and acting to overcome it.
Okay, so how does the "free market" address a growing underclass that can't afford to live outside poverty? How does the "free market" address social issues caused as a result of this poverty? Inconveniently, for the "free market", these people will not go quietly, and when things get really bad, violence will become an issue. So the "free market" incarcerates them, hoping they don't reproduce, unless they accept their slavery. Then afterwards, everyone is happy, living in paradise.
Sure if it's about the client then sure but as soon as SpiderOak open sources their software they start competing on price because anyone can write a backend to use another storage provider.
How do you know what is running corresponds to the provided source?
For people interested in other SDR options, I believe these guys were YC funded: Per Vices, http://www.pervices.com/
Their hardware is significantly meatier, supporting frequencies from 100kHz to 4GHz with a bandwith of 250MHz. The HackRF only has a bandwith of 20MHz, and bottoms out at 30MHz.
I haven't heard much from them, or discussion about them, but they are out there.
Doctors do have "skin in the game".
They face rigorous scrutiny for their medical actions.
SSL is as save as the CA list used by the browser is. It really doesn't matter which CA you actually choose then.
Which is why a _comprehensive_ history of when, how, and why CA root certs were added to various browsers, and the politicking behind it, would be quite illuminating.
Recall it was only around 2000 when the US relaxed export restrictions somewhat on cryptographic software. [1] So given that sensitive fact, the policy, and architecture of systems such as browser security should be questioned, especially because a select few are making essentially free money selling green address bars.
[1] http://en.wikipedia.org/wiki/Key_size#Symmetric_algorithm_ke...
You are absolutely right that I didn't have to reveal my "prejudice" here.
For that I apologize.
However, you are mistaken that I don't have to trust StartSSL, or any CA at all. In requesting a certificate, I am siginalling that I require a method by which an unknown party can reasonably verify that they are indeed dealing with me. If I am already well known, and a target of attack, it doesn't matter which CA I deal with, every one is potential source of vulnerability. However, if I am not broadly known, and seeking out deals on certificates, and not investing in an EV certificate (why just get a padlock, get the snazzy green bar!), what exactly is the purpose of me investing in a certificate? Well, you're paying for your customers to have faith that whatever faith they have in you is not misplaced, or more precisely no bad guys will get their credit card number which they are sending to you, along with their personal details.
This whole idea behind SSL, https, and ultimately DNS is a broken. And yes, my response was naive enough to be read naively. For that I'm sorry. But this particular post is probably not the place to discuss these shortcomings...
Despite all the hubbub about spying by the NSA and Huawei, an Israeli company would be the absolute last* one that I would trust with my company's security.
Alas, SSL, along with the DNS system, is just a massive internet racket.
(*) Of course I exaggerate, but only slightly.
Wow! I've spent a hour or so looking at the Manta docs and I think Joyent has found the sweet spot as far as abstraction is concerned. Kudos to the Joyent team!
The api [1] is so simple it's absurd. Looking at the design I just keep on asking myself, "but how will it perform?" And the answer is, I don't know. But what I do know is that because of the simplicity of the design, if this compute model catches on, it'll be the start of a new computing paradigm—probably the first genuine attempt at something we can agree is cloud.
The essence of the model is that "caching", in whatever form, is abstracted away. It is up to the architects of the system to ensure that the system performs well on a wide variety of compute scenarios. Let me explain. Usually, in a model like App Engine, you worry about how you'll represent your data in the Datastore, how you'll shard, how you'll use Memcache, and what type of batch jobs you'll run to reduce the amount of dynamic computation that is done on a request. On Manta, you just store your data to their object store and process it as needed. You let the system figure out data locality, what to cache, on which node to perform the compute, etc.
As I said, I have no idea how, or if, this will perform, but as far as abstraction level goes, it's perfect. This is where pricing becomes an issue. At 40µ$/GB/s it works out to 14.4¢/GB/hr with no mention or guarantee of the performance of the system. If the compute is slow, or the node is overloaded for tasks, what can a customer do? What if the compute is not limited by cpu but access to the underlying object store. Sure they say the compute is done at the edge, but what if they stick 4TB of data on a node that's the compute equivalent of an Intel Atom? So many questions about performance!
All that said, congratulations to the Joyent team. The HN response so far has been muted, but I think time will reveal Manta to be an important step towards true cloud computing.
Hopefully, Manta will mature enough to get a chance to kiss a girl.
We already had such a thing, in essence, except there were no takers. [1] Implemented by a bright HNer. [2]
The source link is [1], earlier sale negotiations [2].
I hope Amazon manages to aggressively commercialize this technology.
Ever since seeing development prototypes in videos I've been smitten. [3]
[1] http://www.the-digital-reader.com/2013/05/13/confirmed-amazo...
Out of curiosity, how did you encounter this paper ciderpunx? The authors aren't familiar to me from logic/computing, but perhaps they're combinatorialists.
If I find time I'll look at the paper in more detail as it's a question that I pondered but never bothered to answer myself when I studied the λ calculus.
What exactly is jcfrei's birthright? Or yours, or mine for that matter?
I'm going to get out my raclette and chillout for a bit...
I'm actually thinking Adapteva has a lot of future in present areas of growth.
1) On the mobile side, you can have Epiphany, their compute fabric, as a unit directly on the mobile SoC. You can do codec offload, like WebP, WebM, SILK/Opus. You can do basic computer vision for augmented reality applications, or image recognition. Or perhaps physics, integrate gyro output, position the device in absolute three space. I dunno, the point is the compute is open, there for exploitation. It's not like OpenCL where I have to beg the drivers to be available, correct, or performant. Nor is it like Qualcomm's Hexagon, where who knows if I can use it, and I sure as hell won't without signing an NDA.
2) As far as cloud and heterogenous compute goes, again I see an embedded Epiphany being useful. Everybody whines about various things, like for example missing double-precision. Firstly, it's not like the architecture can't be extended in future. But more importantly they miss little details. Each node in Epiphany can branch and do integer. You can see it doing wire-speed protobuff de/coding and other parallel data shuffling of long-living data, that could be compressed, or interleaved somehow.
I'm more of a low-power, cloud kind of guy. So that's what I'll be playing with the most when I get my hands on the kit. That and maybe some parallel graph rewriting. Who knows, the sky's the limit.
I'm really disappointed about how shallow the discussions about Adapteva are, and have been, on HN.
To remind everyone, the H = hacker. This device is a godsend, as far as I'm concerned. For the first time ever I get fully documented access to compute array on chip. No the architecture wasn't designed for anything specific, like graphics, but that means I don't get bogged down in details I don't care about, like some obscure memory hierarchy.
The chip is plain, simple, low-power, and begging for people to have an imagination again. Stop asking what existing things you can do with it, ask what future things having something like this on a SoC would enable.
Also, you should really be thinking about the chip at the instruction level, writing toy DSL to asm compilers. Thinking along the lines of, oh yeah I'll use OpenCL so I can be hardware agnostic, is never going to allow you to see what can be possible with it. If you read the docs you'll see what a simple and regular design it is, perfect for writing your own simple tooling.
It's been a long time, but I feel like a kid again. Like when I first discovered assembly on my 8086. Finally a simple device I can tinker with, play, and wring performance out of.
Hallelujah! :)
You could at least have upvoted it, like I did. :)
Well, you should read it. :)
Anand does make a comparison to the mobile space, I presume alluding to the disruption that was the iPhone. I don't think it's a valid point of comparison. First, you have Job's shrewdly negotiating Verizon and AT&T off each other (helped by technical differences of their then choice in radio technology), and second the fact that he'd earlier, consensus being, screwed the music industry over with iTunes pricing negotiations.
This, I feel, makes TV and film executives, and corresponding cable and sattelite providers extremely weary of ending up not in control of their fates.
We'll see what happens, but Intel is clasping at straws for a strategy. Really strange to see them so fragile.
Though I don't know you personally, professionally, or otherwise, congratulations, I guess.
Well, I'm not speaking to cultural norms or "repression". I should have been clearer. If you, the abstract you, wants monogamy, you ought to seek it out and negotiate the situations that arise. Monogamy itself is a perfectly valid "need and desire" of certain people. There is nothing inherently problematic about it in and of itself.
Perhaps it's a little silly to expect your every need and desire worthy of fulfillment.
Feynmann's great mirror story [1]. Try and solve the puzzle before watching the whole clip.