twtw

12 ms·

91.
by twtw 8y ago
That's in the article.
92.
by twtw 8y ago
These two statements seem to conflict a bit. Anybody else think so? > are flooding their home, driving up rents, installing yoga studios, polluting the local vibe with new technology, and generally making everything suck while sipping ka
93.
by twtw 8y ago
Yup. I side loaded an app yesterday onto my phone running iOS 8.4.1.
94.
by twtw 8y ago
FWIW, automatic differentiation (as used in popular machine learning frameworks) is not the same thing as the symbolic differentiation described in that section.
95.
by twtw 8y ago
I do it on iOS 8. Can't recall the Xcode version.
96.
by twtw 8y ago
Does sideload still work? I recall they enabled the ability for anybody to load apps via Xcode around iOS 7, but haven't kept up to date with latest versions. Did this stop working on newer iOS versions? I sideload stuff on my phone qu
97.
by twtw 8y ago
I'm not sure I agree with your analogy between current "autonomous" vehicles and an inefficient lightbulb. I'd say it's more like a lightbulb that flickers and burns out in 5 seconds. In which case it probably makes
98.
by twtw 8y ago
The radar in tesla vehicles is the type intended for use in adaptive cruise control. Extremely low angular resolution with a filter that ignores objects that are close to stationary. This is why Teslas keep running into stationary cars. The
99.
by twtw 8y ago
Good discussion. The arguments that because humans can do it with two eyes any approach using more than cameras is wrong frustrate me to no end. Technology and engineering isn't about imagining the minimum theoretical requirements, it&
100.
by twtw 8y ago
> and therefore the complete chip. Most semiconductor companies bin chips based on how broken they are. GPUs, for example, frequently have different skus with the same chip differentiated by how many processors are broken (and thus disab
101.
by twtw 8y ago
Why?
102.
by twtw 8y ago
On my system, I see the following: $ /usr/bin/time -f "%U\n" ./exp_volatile_a_b 0.13 $ /usr/bin/time -f "%U\n" ./exp_lapack 0.52 $ /usr/bin/time -f &quot
103.
by twtw 8y ago
Some more interesting points: - Switching to -O3 for gcc (instead of author's default -O2), the C version (exp_volatile_a_b) gets ~30% faster, bringing it down to ~50% of the python-generated llvm - it appears to still be doing the ful
104.
by twtw 8y ago
Has anyone reproduced these results? FWIW, I can't. $ cd wordsandbuttons/exp/python_to_llvm/exp_c $ make $ /usr/bin/time -f "%U\n" ./exp_volatile_a_b 0.13 $ cd wordsandbuttons&#
105.
by twtw 8y ago
I would think MIT might be a bit special, given that both EE and CS are Course 6 - some other schools have a similar setup (i.e. one EECS department), but many do not. From a cursory look, it appears there were around ~55,000 CS graduates i
106.
by twtw 8y ago
I wouldn't call this Harvard. It has ICCM/DCCM (closely-coupled memories) that appear to be strict (i.e. core cannot ld/st to ICCM), but everything is in the same (physical) address space, and the CCMs are just mapped into th
107.
by twtw 8y ago
> a bus turned upside down is perceived as a plowshare If I'm thinking of the same picture you are, it's a schoolbus on its side on a snowy road that is misidentified as a snowplow. FWIW, that picture does look a lot like a sno
108.
by twtw 8y ago
One interesting note re: 8b/10b encoding. The motivation in the article is accurate, but not the whole story (never is, in the analog world). Nowadays, 8b/10b (or more realistically 128b/130b) is critical to enable clock reco
109.
by twtw 8y ago
> We're talking about an API I don't think we are. We are talking about languages. In CUDA, compute kernels are written in a language called "CUDA C++." In OpenCL 1.2, compute kernels are written in a language called
110.
by twtw 8y ago
Your rhetoric is a bit out of date. I have no problem with AMD (their hardware is good!), but I don't think your presentation is accurate. > CUDA Implemented by AMD too, under the moniker "hip." > their RTX crap Vendor-
111.
by twtw 8y ago
Thanks for your response. I'm interested particularly in preemptible pods - I see here https://cloud.google.com/tpu/docs/pricing pricing for preemptible single units, but there is no indication that preempt
112.
by twtw 8y ago
Are there plans for preemptible TPU pods? As is, it looks like p3 16xlarge spot instance (or probably preemptible gcp 8xV100) are still by far the most cost effective option. You have to do a bit extra to tolerate preemption, but it's
113.
by twtw 8y ago
> in the end made to happen by an unlikely pair Who spent years studying birds... No, the wings of the wright flyer don't flap, but that doesn't mean it wasn't designed based on birds. One key piece (controllability) came
114.
by twtw 8y ago
> They also don't post their code so I can't check that their problems with ADAM aren't due to using L2 regularization, The article indicated they used the same implementation on all device types, so I don't think L2
115.
by twtw 8y ago
Looks like riseml has shut down and taken their comparison post down. I was hoping to compare the results.
116.
by twtw 8y ago
This is pretty similar to Peter Shirley's "Ray Tracing in a Weekend" series, which gives some more detail and discusses the ideas more, and which recently was put online as "pay what you want": https://tw
117.
by twtw 8y ago
This is still my goto diversion whenever I end up in an Apple Store - trying to get Star Wars going on as many computers as possible.
118.
by twtw 8y ago
I would add 5. All those new developers entering the web development community want to make a name for themselves, and there isn't as much opportunity for that if you are just using a framework created by someone else.
119.
by twtw 8y ago
> You gotta admit the situation is kinda similar. I disagree. 1. Everybody knows Python is a scripting language, and trying to do heavy computation without handing it off to a library is going to be slow. 2. A vector is the de facto data
120.
by twtw 8y ago
> advocating the use of __builtin functions vs standard functions It wouldn't say it "advocates" for the use of builtins. The author demonstrates a problem they had (including math.h made their compile times 2x slower in c

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