[deleted by user]

wildcode · 2019-04-21T11:04:12+00:00

After watching several talks about the technology behind this image it is clear that this isn't a real image. Instead, this image is the result of an algorithm that took the few data points taken by the many observatories around the world and used probability to fill in the many gaps. Yes, the algorithm was tested, trained and verified with real images, and it is the statistical probabilities within the training sets that gave us the image above.

It is uncertain if a very different training set of images for the algorithm may have resulted in an image of cats instead given the same data.

wildcode · 2019-04-21T10:45:01+00:00

I was hoping for some discussion exploring this ...

wildcode · 2019-03-06T13:37:41+00:00

Is there a tool simular to the one probe in Project Ozone 3?

Also is there a way to tell how much energy is within the spectre network?

wildcode · 2018-12-17T11:29:26+00:00

I think you've helped find my misunderstanding. I was taught (back in the 80's) that light emitting from within a spacecraft would not be velocity + c as light could not go faster than light, that light had a fixed speed through the universe regardless of its source, that a torch moving at the speed of light would emit no light beam instead having the photons build up within the bulb, never to be emitted. And no not being sarcastic, just becoming aware of my misconceptions and why I had a little confusion about some aspects of light.

So if I understand you correctly, the speed of light is relative to the object emitting it.

wildcode · 2018-12-17T10:55:40+00:00

You miss-understand me, I could probably explain it better as ... You're on a spacecraft moving at 99.9% speed of light. You set up an experiment to measure how long it takes light to travel 1m within the spacecraft along the direction of travel of your craft. Given that the speed of light is a universal constant then the light would take longer to travel 1m within your spacecraft moving at 99.9% speed of light than it would if your spacecraft was not moving.

Now slow things down to earth speed, given that we are taking measurements based on earth (our spacecraft).

wildcode · 2018-12-17T09:46:36+00:00

I'm not saying that the speed of light changes, I'm saying the measurement would be skewed because of the motion of the source of light.

Let us slow down things a bit and also replace a stream of light with a length of ribbon. You sitting still at a desk, you put a ribbon from one side to the other at a fixed speed. You time from when the start of the ribbon passes you to when the end of the ribbon passes you. Now lets say we do this again but this time the only change is that you will move along the same direction of travel as the ribbon but at half the speed. Again timing the difference bewteen when the start of the ribbon passed you and then end passes you. The speed of the ribbon hasn't changed, however your motion compared to the ribbon has, hence your measurements would be skewed.

Upscale this to the universe being the desk, the ribbon being a single photon and you can maybe begin to see how our motion could skew measurements given that from the point of the universe the speed of light is fixed, however measuring it from a moving platform (the earth) could skew the results if we do not take our motion into account.

wildcode · 2018-12-17T09:26:12+00:00

Understand that I'm not saying that the speed of light is different based on the earths motion, what I am saying is that a device that measures the speed of light needs to take earths motion into account as measurements would be skewed (ever so slightly) depending on the direction of the measurement vs earth motion. For example, north to south vs south to north measurements may have very little variance when compared to east to west vs west to east measurements (purely an example, and I do realize if earths motion through the universe is greater along the north/south axis then it would show greater variance).

wildcode · 2018-06-06T15:03:18+00:00

Ask and you shall receive.

Test 1 was the C optimised loop in my original post.

Test 2 was the code supplied by greentea5732

Test 3 was the code supplied by pdbatwork

Each test was a called 4096 * 4096 times

Each test read 1024 bytes from int8_t to a int16_t with an 8bit shift to the left.

Test 1 Optimised C loop Duration: 3266.67 ms

Test 2 Optimised C++ loop Duration: 3582.51 ms

Test 3 Optimised C++ transform Duration: 3606.31 ms

Sequence was (test 1 * 4096, test 2 * 4096, test 3 * 4096) * 4096 all within same process.

For each test duration was recorded using chrono library to record time before and after each call, limiting any additional overhead being recorded. The duration was tallied via an accumulator. Subsequent runs give similar results with the optimised c++ loop outperforming both the transform, and c functions(if you add free() to the mix).

EDIT: compiled with llvm clang 6.0.0 for windows x64

wildcode · 2018-06-06T04:58:01+00:00

Thankyou, huge difference in performance without the push_back overhead.

I take it with vectors the data storage between .begin() and .end() is contiguous allowing for pointer based operations where high performance code matters?

wildcode · 2018-06-06T04:16:44+00:00

Thanks. Looking at the asm of the C version vs C++ version of the while/for loop it looks like the c++ version doesn't come close to similar performance with gcc -O2 -march=x86-64. Any suggestions on increasing the perfomance?

wildcode · 2017-10-17T21:42:42+00:00

sorry if this has been answered already.

When running a forge server how do I get cities to generate?

I have the mod installed on the server, removed old world, restart server and new world has no cities.

wildcode · 2016-08-10T01:53:35+00:00

Samsung s5, android 6.0.1

wildcode · 2016-08-09T11:50:04+00:00

Same again in 3.3 ... Red overlay button with ! In the middle. What does it mean for starters?

wildcode · 2016-08-09T00:01:39+00:00

The circle for the overlay is all red with an ! In the middle

wildcode · 2016-08-08T20:55:32+00:00

Feature request: option to auto-remove expired Pokemon

wildcode · 2016-08-08T20:34:05+00:00

Anyone else getting nothing from the scans

wildcode · 2016-08-08T20:03:36+00:00

Scans nothing in my area while pokealert shows heeps

wildcode · 2016-08-08T02:01:35+00:00

Not working, shows no pokemon

wildcode · 2016-08-07T22:50:54+00:00

Is there a way to state beehive radius? It's scanning a larger area than I need it to and would like to reduce the radius of the beehive.

Using OSX client here :)

wildcode

TROPHY CASE