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| 10:01 | Bertl | morning folks!
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| 15:25 | supragya | hi BAndiT1983
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| 15:26 | supragya | I am facing a very "different" problem with mlvfs
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| 15:26 | supragya | Here:
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| 15:26 | supragya | https://imgur.com/a/3u26TtZ
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| 15:26 | supragya | My mlv were not working, so I used the sample files given on https://www.magiclantern.fm/forum/index.php?topic=11899.0
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| 15:26 | supragya | still, not accessible
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| 15:27 | supragya | tried both ranger and thunar, no luck... any ideas?
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| 15:32 | TofuLynx | Hello
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| 15:32 | supragya | hi @ TofuLynx
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| 15:32 | TofuLynx | How are you? :)
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| 15:32 | supragya | I see too many commits in OC XD
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| 15:33 | supragya | I am good... facing a few issues with next stage of MLVFS and LUT in general
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| 15:33 | TofuLynx | Nice
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| 15:33 | TofuLynx | Hopefully it is resolved
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| 15:33 | TofuLynx | I have to benchmark OC now :)
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| 15:33 | supragya | nice
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| 15:34 | TofuLynx | and it's kinda boring xD
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| 15:34 | supragya | haha XD
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| 15:34 | supragya | I feel you.. I get bored sometimes too
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| 15:34 | TofuLynx | yeah
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| 15:34 | TofuLynx | and then I have to learn openMP yet
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| 15:35 | TofuLynx | it's strange in general
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| 15:35 | supragya | regarding eval 1, when will we find it we passed ?
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| 15:35 | TofuLynx | because it has got those kinda off "comments"
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| 15:35 | TofuLynx | I think it was day 20
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| 15:35 | supragya | openMP? no... it's good if you understand why it is the way it is
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| 15:35 | TofuLynx | Yeah, I have to understand
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| 15:36 | TofuLynx | Or probably today
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| 15:36 | TofuLynx | because they wouldnt let us continue GSoC if we failed
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| 15:37 | supragya | you wonder why openMP is that way? just read about MPI XD
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| 15:37 | TofuLynx | Not yet, I have to take a deep look into it yet
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| 15:37 | TofuLynx | Do you have experience with openMP?
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| 15:38 | supragya | had a course on it
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| 15:38 | TofuLynx | wow xD
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| 15:38 | supragya | parallel and distributive computing
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| 15:38 | supragya | openMP and CUDA are simple, I feel MPI is a bit tuff
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| 15:39 | supragya | since a lot is left to the developer to handle... many things go wrong... atleast it went for me
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| 15:42 | TofuLynx | MPI?
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| 16:00 | BAndiT1983 | hi supragya_, g3gg0 can answer it better, as he developed this stuff
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| 16:00 | rahul_ | Well... CUDA specifically targets Nvedia GPU
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| 16:00 | rahul_ | MPI is for cluster computing
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| 16:02 | rahul_ | well OPENCL is perfect if you want to heterogenously use processor and FPGA ..and MPI suits best to exploit multicore nature of multicore-processor
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| 16:03 | TofuLynx | Hey BAndiT1983 :)
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| 16:04 | BAndiT1983 | hi TofuLynx
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| 16:04 | BAndiT1983 | MPI is overkill for our cause
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| 16:05 | TofuLynx | I was implementing now a for loop to benchmark the algorithms
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| 16:05 | BAndiT1983 | arrayfire tries to be a bridge between opencl, cuda etc.
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| 16:05 | BAndiT1983 | very good, have you seen my commentsin lab chat?
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| 16:05 | TofuLynx | and the SHOODAK one is very funny when you run it 100 over the same data, as it displaces the pixels everytime
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| 16:06 | TofuLynx | Yes! I think I will resort to spreadsheets
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| 16:06 | TofuLynx | sent you an image of what happened
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| 16:07 | TofuLynx | By the way, I would like to make sure that I am running OC in release mode
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| 16:09 | BAndiT1983 | i have already thought that shoodak will randomize pixels
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| 16:09 | BAndiT1983 | but your output is rather strange, but very nice
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| 16:10 | TofuLynx | Yeah :)
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| 16:12 | BAndiT1983 | why is it jumping that much? my expecattion was random "noise" of pixels
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| 16:12 | BAndiT1983 | but just with low offset
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| 16:12 | TofuLynx | Because SHOODAK not only does random noise, but also displaces the image channels
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| 16:13 | TofuLynx | accurately, it displaces half pixel per iteration
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| 16:14 | TofuLynx | I will sent you an image explaning the displacing
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| 16:15 | TofuLynx | send*
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| 16:16 | TofuLynx | Sent. You can see it
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| 16:16 | TofuLynx | Basically, I store each white ring position into where the black arrow points
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| 16:17 | TofuLynx | so it displaces every pixel half pixel horizontally and vertically
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| 16:17 | TofuLynx | :)
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| 16:18 | BAndiT1983 | but it offsets by 100-200 pixels in your result image
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| 16:21 | TofuLynx | It actually offsets by around 50 pixels horizontally and vertically
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| 16:21 | TofuLynx | However I noticed that this effect doesnt occur on red and blue channels
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| 16:24 | TofuLynx | BAndiT1983:
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| 16:25 | TofuLynx | Can you help me making sure that I am running this in release mode?
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| 16:26 | BAndiT1983 | no proble, just do, if you are using command line -> cmake -DCMAKE_BUILD_TYPE=Release
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| 16:26 | BAndiT1983 | or qtcreator -> projects -> variables
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| 16:27 | TofuLynx | Can you check on lab chatroom?
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| 16:29 | BAndiT1983 | looks fine
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| 16:29 | TofuLynx | Ok :)
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| 16:29 | TofuLynx | On a first glance
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| 16:32 | TofuLynx | Bilinear takes around 52ms, GEDI takes around 71ms
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| 16:32 | TofuLynx | and SHOODAK takes 162ms
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| 16:32 | TofuLynx | SHOODAK is really slow
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| 16:32 | TofuLynx | but GEDI as to be significantly improved, to be used in real time video
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| 16:33 | TofuLynx | has*
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| 16:34 | BAndiT1983 | don't worry, just add benchmarks, then i can take better look, as there are some places which can be optimized
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| 16:34 | TofuLynx | hopefully we can take it to under 20ms or less, so that 30fps should be possible at least
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| 16:34 | TofuLynx | sure :)
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| 16:34 | BAndiT1983 | shoodak -> line 82 - 95
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| 16:35 | BAndiT1983 | why does it check multiple times for dis(gen)?
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| 16:35 | BAndiT1983 | it'S slowing down, and 3 if can be converted to 1
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| 16:35 | BAndiT1983 | we can discuss it also via PM, if you want
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| 16:36 | TofuLynx | it has to be random for every check, However, I could use a single dis(gen) that uses every combination
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| 16:37 | BAndiT1983 | alright, i should look after your benchmarks are available
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| 16:37 | TofuLynx | sure
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| 16:37 | BAndiT1983 | have you activated clangcodemodel in qt, so it shows you warnings and potential errors? really helpful
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| 16:37 | TofuLynx | I dont know
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| 16:38 | TofuLynx | Also, do you want me to do a separate thing, like an unit test, for benchmarking, or can I benchmark under existing code? such as processing Presenter Show() method
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| 16:39 | TofuLynx | I will be right back, going to have a meal
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| 16:40 | BAndiT1983 | enjoy your meal
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| 16:40 | BAndiT1983 | you should do it in separate unit test
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| 16:41 | BAndiT1983 | you can also use catch2 duration, if you add -d yes to OCTests in command line, for some general timing
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| 17:35 | TofuLynx | Back
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| 17:35 | TofuLynx | Ok! Will do it
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| 17:39 | BAndiT1983 | pc froze totally
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| 17:40 | BAndiT1983 | TofuLynx: will go for longer walk, so just as ususal, questions here or in lab chat
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| 17:40 | BAndiT1983 | see you
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| 17:40 | TofuLynx | See you! :)
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| 20:46 | se6astian | good night
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| 20:46 | TofuLynx | Good night!
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