deadgrey19

9 ms·

31.
by deadgrey19 10y ago
Citations give a ranking of how often work is mentioned, but not how valuable the work is. For example " Ileal-lymphoid-nodular hyperplasia, non-specific colitis, and pervasive developmental disorder in children" , otherwise known
32.
by deadgrey19 10y ago
How is that different? Neither Scala nor OCaml rank in the top 10 programming languages according to several metrics/organisations [1-5]. Keeping in mind that programming language use is a heavily skewed distribution, OCaml and Scala h
33.
by deadgrey19 10y ago
This sounded so promising until the OCaml part. The problem is, the masses don't program in OCaml. They program in C# or Java, or C++. So this is really lock-free programming for OCaml, which is a lot less relevant.
34.
Into the Depths of C: Elaborating the De Facto Standards [pdf](cl.cam.ac.uk)
2 points by deadgrey19 10y ago|0 comments
35.
by deadgrey19 10y ago
Fair point about only taking half the ping distance. On the other issues, I disagree. They are the precisely the point of my objection. Assuming that latency is governed by the speed of light fails to take into account all of those other ef
36.
by deadgrey19 10y ago
Actually I do have servers in London and Sydney, so here goes. Speed of light is 299792458 m/s (according to google) Distance between London and Sydney is 16,983Km (according to google) So, 16,983 / 299792.458 * 1000 = 56ms. Now:
37.
by deadgrey19 10y ago
The idea that latency is currently bounded by the speed of light is what stops people from fixing the fact that it is not. This is my objection.
38.
by deadgrey19 10y ago
I don't have servers in SF and NYC to play with, but I'd guess that if you ping between them, you'd see much higher latency than that.
39.
by deadgrey19 10y ago
"Latency is not decreasing too much and is limited by the speed of light." This is not true in any realistic distributed system. Sure latency is not decreasing much, but it is several orders of magnitude higher than the speed of l
40.
Hand-picked, nature-inspired color palettes (for websites, design etc)(design-seeds.com)
1 points by deadgrey19 10y ago|0 comments
41.
by deadgrey19 10y ago
This company http://exablaze.com/ (which I do some work for) builds FPGA based NICs and switches nearly exclusively for the HFT industry. Arista discontinued the 7125FX switch (with an FPGA in it) because of limited uptake.
42.
by deadgrey19 10y ago
Bluespec is closed source and expensive to license. I can't even find a 30-day trial download on the website which most people give away for free. Probably not compatible with a hobbyist project like this one.
43.
Apple Stole My Music(blog.vellumatlant.com)
1 points by deadgrey19 10y ago|0 comments
44.
by deadgrey19 11y ago
See also: https://users.soe.ucsc.edu/~scott/papers/NCL2.pdf
45.
by deadgrey19 11y ago
"renewable" energy is a misleading term. It includes renewable (non fossil-fuel) sources such as Corn Ethanol. It is debatable whether such sources have any long-term environmental benefit[1]. Carbon neutral or zero-carbon energy
46.
by deadgrey19 11y ago
FWIW, all research funded by the Engineering and Physical Sciences Research Council (the major funding body behind STEM research in the UK) is required to be Open Access, including data collected. In the next REF (the process through which
47.
by deadgrey19 11y ago
This sounds like a fair and reasonable criticism of the the paper, it says that there are factual errors that should be addresses and it echo's comments by others here on HN (i.e. that a real solution is not sufficient, the solutions s
48.
by deadgrey19 11y ago
Which journal was this?
49.
by deadgrey19 11y ago
Perhaps you should submit this to a real journal rather than hacker news? Real experts might be the right people to refute you. May I suggest the Journal of Complexity ( http://www.journals.elsevier.com/journal-of-complexity&
50.
Why CALEA Trumps the All Writs Act (AWA) Order(cyberlaw.stanford.edu)
3 points by deadgrey19 11y ago|0 comments
51.
by deadgrey19 11y ago
RDMA/kernel bypass NICs work by mapping chunks of RAM and then automatically DMA'ing packets into those chunks. Again, it would be a pretty round about way to give the FPGA access to packets to copy data to RAM, then copy down to
52.
by deadgrey19 11y ago
The question is where are they broken out? If at all? A bunch will be used for the QPI/KPI interface, but how many will get broken out to play with in the real world? If the slides are correct, 8x will be broken out as PCIe so that&#x2
53.
by deadgrey19 11y ago
I have used/programmed their cards. It was the worst 3 months of my life. I will never willingly touch their stuff again. Buggy compiler implementing a superset of a subset of C89 with totally crazy macro extensions, and bizarre locali
54.
by deadgrey19 11y ago
Sure. This is a possibility, although it is a bit round about and there would be an interesting song and dance in the NIC driver. NICs typically are told where to DMA to using descriptor tables programmed into the NIC by the driver. To do t
55.
by deadgrey19 11y ago
Although having taken a look at those slides, it would appear that the FPGA is given it's own PCIe bus connectivity to the outside world. That could be an interesting way to interact with the outside world.
56.
by deadgrey19 11y ago
I think I may not have been clear enough. I think we can take it as a given that there will be some kind of high-speed interconnect between the CPU and the FPGA (as you say, PCIe or QPI or whatever). But this is not the I/O problem I&#
57.
by deadgrey19 11y ago
Programable logic on the die sounds like a great thing in principle, but the place where it really comes into its own is doing I/O work. Network/disk acceleration, offload, encryption. This is where hardware (which is slow and wid
58.
by deadgrey19 11y ago
I've not noticed the compile time increase to be honest. But I have noticed the type safety. A few times it has saved me from bugs that would have taken days to find if I was using void* casts. In my world (mostly high perf networking
59.
by deadgrey19 11y ago
<shameless self promotion> If you're interested in this sort of thing, take a look at https://github.com/mgrosvenor/libchaste . Work started on this before C-generics came about, so there is pretty heavy macr
60.
by deadgrey19 11y ago
<shameless self promotion> Take a look at this instead. Work started on this before C-generics came about, so there is pretty heavy macro usage, but all data structures are type safe: https://github.com/mgrosvenor&#x2F

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