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< zoq>
Yeah, I think you could also run tests on the pendigits dataset, just wanted to point out running benchmarks against the thyroid dataset is probably not the best idea.
< zoq>
If you could provide some insights, great :)
< wiking>
zoq, ok so yesterday a student of ours realised
< wiking>
that if he is testing with your framework our LDA
< wiking>
that uses Eigen
< wiking>
that uses OpenMP
< wiking>
there's a problem.... i.e. the process hangs
< wiking>
because you do a fork in the python script
< wiking>
and posix fork causes some troubles with openmp
< wiking>
coz it has some state info :)
< zoq>
hm, okay, but it should timeout after 9000 seconds and continue with the next method. So is the already a fix in place? I guess, I could set OMP_NUM_THREADS=1 for LDA as a workaround?
< wiking>
zoq, basically "<micmn> all shogun's methods should be run in a different process"
< wiking>
zoq, do you guys have the resource for this to be ported?
< wiking>
zoq, our you need help from us?
< zoq>
wiking: I can probably do this in the next days, but any help is much appreciated :)
< wiking>
zoq, mmm i can ask a student of ours to help but only next week
< wiking>
anyhow let's see how we proceed and then next week we'll try
< wiking>
i reckon you better kill this one
< wiking>
as it's gonna mainly timeout
< wiking>
due to this bug
< zoq>
wiking: okay sounds good, thanks for the information. Also maybe micmn can just open a PR for the LDA method, I'd like to give him credit for the fix, and if anyone has time we point out to micmn's fix.
< zoq>
sumedhghais: I guess you tested with Release=ON which is the default setting for the master branch, can you test with DEBUG=ON?
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< rcurtin>
sgupta: I am not sure what happened, but everything in /home/jenkins/src/armadillo is now owned by root and not world readable
< rcurtin>
this type of thing happens when you're not careful about docker permissions
< rcurtin>
and in this case it causes every matrix build to break
< sgupta>
rcurtin: I once just copied the tar balls and did nothing else on that.
< rcurtin>
I am certain that no system process caused this to happen, please be careful in the future
< rcurtin>
if you mount something inside of a container, then operate on that mount, the permissions may be modified in bad ways if one doesn't take precautions
< sgupta>
I'll double check things from now onwards if something went wrong because of this. Sorry for the trouble.
< rcurtin>
sure, it's not a huge problem, not too hard to fix (I am fixing it now)
< rcurtin>
but the key to remember is that when you operate inside of a Docker container, if you are root and you are modifying or copying files, then root will own the new files
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< sgupta>
rcurtin: just to make sure this never happens again, I'm copying files from /home/sgupta i.e. my user, so how the permissions of Jenkins user files got changed.
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< sgupta>
Is it because of registry mapping and we tried to pull the image on dealgood?
< rcurtin>
sgupta: I don't know exactly what caused it, and I doubt that it has to do with the registry
< rcurtin>
I suspect that /home/jenkins/src/armadillo/ was mounted in a docker container and then some command that changed all the ownership and permissions was run
< sgupta>
rcurtin: okay. I'll enquire steps before doing something anything related to this.
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< zoq>
Looking at: L_BFGS if I do 'Log::Debug << function.Evaluate(iterate);' with DEBUG=OFF it's going to be evaluated anyway. Thinking about an elegant way to abstract that away.
< zoq>
sumedhghaisas_: Did you see my message?
< sumedhghaisas_>
zoq: Hey Marcus... sorry I didn't get any. can you please copy-paste them again?
< sumedhghaisas_>
on IRC? can't find it on the IRC log...
< zoq>
sumedhghais: I guess you tested with Release=ON which is the default setting for the master branch, can you test with DEBUG=ON? You can always check the logs: http://www.mlpack.org/irc/
< sumedhghaisas_>
ahh okay. I will test that...
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< sumedhghaisas_>
zoq: Hy marcus...
< sumedhghaisas_>
I got the error...
< sumedhghaisas_>
although I am not sure its in my code or not yet
< sumedhghaisas_>
so for me the as_scalar function failing
< sumedhghaisas_>
I checked and found out that you have used data::binarize for conerting the softmax output... it should be max right?
< sumedhghaisas_>
I found 1 part where all the outputs are less than 0.5
< sumedhghaisas_>
I am still not getting tht out of bounds error
< zoq>
sumedhghais: It should be max right, binarize is more restrict if I expect as output [1 0] using binarize on [0.6 0.6] I get [1 1] which is false using max I get [1 0] which is true.
< zoq>
sumedhghais: About the bounds error, I can look into it later, if you haven't figured it out; just looked over the code, but couldn't see anything obvious.
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< sumedhghaisas_>
zoq: I also noticed that we are using Sigmoid as the last layer and MeanSquaredError as the output layer
< sumedhghaisas_>
I am confused about this architecture a bit
< sumedhghaisas_>
its framed as a classification task right?
< zoq>
sumedhghais. Yeah, it's just a simple classification task, you could use another architecture or output layer, I think I used the same architecture as Alex Graves for his experiments.
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< wyatt>
does anyone know of example code i could look at that implements ann?
< wyatt>
If anyone could help i need to build a neural network to approximate a function like z=sin(x)+sin(y) and I have had a lot of trouble trying to understand the documentation
< rcurtin>
wyatt: your best bet for now will be to look in src/mlpack/tests/feedforward_network_test.cpp and other related test files
< wyatt>
thanks ill check that out
< wyatt>
if anyone else has any recommendations I would greatly appreciate it
< zoq>
sumedhghais: Any progress? Looks like the GRUDistractedSequenceRecallTest also fails because of a matrix multiplication failure.
< sgupta>
rcurtin: resolved that issue with the boost library
< sgupta>
Will update the pr soon
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< wyatt>
i am not able to install mlpack. it keeps breaking when it comes time to [ 24%] Linking CXX shared library ../../lib/libmlpack.dylib
< wyatt>
any ideas?
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< zoq>
wyatt: Maybe you can post the complete error on pastebin or something like that?
< wyatt>
it seems to only happen when im trying to use current gnu gcc-7 and g++-7 which are the compilers i want to use. it finished running make when i used clang
< zoq>
'No such file or directory' I guess if you specify the full path it will work. Also I tested it with clang. Did you rebuild mlpack with g++? and did you specify the gcc/g++ e.g. export CC=gcc && export CXX=g++
< zoq>
yeah, macOS uses usr/local/include
< zoq>
Do you think we should adjust the text?
< zoq>
I think you could also do: cmake -DCMAKE_CXX_COMPILER=/path/to/g++ ..
< wyatt>
i did not rebuild with that. I will do that in a bit i need to catch a bus but will when i get home and ill probably try again tomorrow
< zoq>
okay, sounds good
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< zoq>
kris1: Do you mind if I integrate the images from the latest blog post?
< kris1>
Yes sure no problem
< zoq>
kris1: Okay, great :)
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< zoq>
kris1: Okay, let me know if I messed something up.
< zoq>
kris1: Btw. nice update :)
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< kris1>
Thanks. But mikhail and we are still not sure if the present implementation is correct meaning that the results should have been better
< kris1>
also today i was checking the test on classification accuracy fom sklearn we get very poor perfomance
< zoq>
compared with sklearn?
< kris1>
That is why i am checking each step again just to find the mistake