pheon

5 ms·

1.
by pheon 2y ago
luajit buffer serialization is amazing fast and also surprisingly very space efficient. this should really be at the top of the thread.
2.
by pheon 4y ago
long time, bravo Mike! is there a youtube of all the VU coding comps submissions while it was running. think it was 2 or 3 years the comp ran for?
3.
by pheon 4y ago
we are actually doing that now at https://fmad.io for SDR instead of raw oscilloscope ADC. SDR is about an order of magnitude less data e.g. 6GS/sec instead of 60GS/sec and Matlab as the backend instead of Python.. as
4.
by pheon 6y ago
Indeed awsome hardware to code for. It was amusing when the Sony guys joked people are writing their VU assembler in Excel. To make it easier to mentally keep track of the instructions in each pipe.
5.
by pheon 7y ago
The architecture and design of PS1/2/3 were driven from Tokyo, where as PS4/5/+ are driven from the US. It happened because the internal corporate structure changed significantly, leading the design to be heavily influen
6.
by pheon 8y ago
God dam wtf! Catch up with you offline :)
7.
by pheon 8y ago
Is there any throughput performance numbers published?
8.
by pheon 8y ago
Not possible, write bandwidth of tape is not very high. My guess is they have a cabinet / 42U worth of HDD arrays, by the numbers they need ~ 176Gbps write bandwidth which is totally possible even in half a cabinet. 400TB worth of SSDs
9.
by pheon 8y ago
Yup, there are exceptional engineering talent in these mega corps, rare but it does exist. Usually the talent gets filtered by Division X progression. Eventually the best end up in Division 1, which is good but it takes a long time for this
10.
by pheon 8y ago
In corporate Japan, its even numbered too. Software Division 1, 2, 3, 4, 5 Platoon, Company, Battalion 1, 2, 3, 4, 5 etc. Of course the goal is to get into Division 1, as its the most prestigious.
11.
by pheon 8y ago
Peanuts. Japans labor market structure is based on the army/military mode of operation. Imagine your skilled with a riffle because.. you like to shoot stuff out on the farm. Sign up for the army and you will be shipped to bootcamp wher
12.
by pheon 8y ago
Am seriously pissed at this. MS has been slowly acquiring all the tools used for my business, its like surround and siege warfare. Skype, Linkedin, now GitHub.. The time horizons on these kinds of acquisitions are 5 years out. In that time
13.
by pheon 8y ago
According to the recent update of the Japanese Telecommunications act, its illegal to record the packet payloads without a court order. However recording the headers, e.g. TCP headers if fair game. So its perfectly legal for ISPs and agenci
14.
by pheon 9y ago
Yup or your design is just large. Due to the non-deterministic nature of the compiler guiding it at a high level makes it less likely to choose resources in weird locations. e.g. I roughly map out block ram assignments for some of the top l
15.
by pheon 10y ago
Verilog its like going from 2D -> 4D And thats for real complex projects, not making LED`s blnik.
16.
by pheon 10y ago
ah your siding on the lisp machine vs todays hardware arch. I think if the lisp hardware architecture has significant advantages we`ll see that emerging in "soft cpu`s" on fpga`s. Particularly as the Xeon/FPGA gear gathers st
17.
by pheon 10y ago
Precisely. Also the instruction sets have been designed for compilers vs minimizing gate counts. Making it easier for compilers to schedule optimally - alot less weird and bizzare shit they have to deal with.
18.
by pheon 10y ago
As for 2) totally agree, GPU and FPGA programming has become "the new assembly language". It use to be you could drop from C/C++ to assembler and gain massive performance boosts. These days with C intrinsics there`s no need f
19.
by pheon 11y ago
Its interesting reading all the comments here, and think most of it misses the OP`s point. That software development as a JOB means working coherently with other people / teams. The result: you need to be complicit to work effectivel
20.
by pheon 12y ago
As someone who also a "foreigner" who also owns and runs a company here in Japan, much of the article was thats so entertaining... now... but was so not funny at the time. Unfortunately the vast majority of foreigners here are 20
21.
by pheon 13y ago
didnt RTFM thus missed an important detail. Put another way, hes so smart but losing money in the market thus the market is "wrong" and someone is cheating.
22.
by pheon 14y ago
modify the luajit frontend. Added continue and != and some other weirder syntactic sugar, was only a half dozzen lines of code.
23.
by pheon 14y ago
i think your analysis is slightly flawed - you have no anchor / point of reference. maybe a better question would be, for ever hour worked, how many ticks are issued. aka normalizing against the number of patrol men/women active for a day o
24.
by pheon 14y ago
being a good data scientist is about having enough intuition about the dataset to ask the right question aka form the hypothesis. working out the question is what makes it a hard(and creative) process, and then you can apply your ML toolb
25.
by pheon 14y ago
any position that requires phd level math/physics/chemistry etc is extremely rare even in the west. job descriptions like to say phd level blah blah blah but rarely do they actually require such a theoretical background.
26.
by pheon 14y ago
My experience is the best coders ive met who get shit done, dont have CS degrees. If they do have a degree then its either in real engineering(building hardware) or pure math/physics.
27.
by pheon 14y ago
It shows how corrupt the Japanese government here is. Not only did they sign RIAA into law with little fan-fare.. they made it a criminal offense by default. If you asked the RIAA exactly what they dream of, this is it.
28.
by pheon 14y ago
Because Korean is hungry, just like China. Japan thinks nothing will change, everything continue smoothly, nothing bad will happen. ... and yes I live and work here(Tokyo) for many years.
29.
by pheon 14y ago
5 years Tokyo here. That is one of the most concise posts on the topic ive yet read, well done. I see the problem as the time scales of events. If reactors blew up once ever 3-5 years everyone would be watching and monitoring, lobbying, tra
30.
by pheon 14y ago
its the secret handshake that only CS grads know. If you cant` recite the CS pledge then you must be lame..

More ›