ChanServ changed the topic of #mlpack to: "mlpack: a fast, flexible machine learning library :: We don't always respond instantly, but we will respond; please be patient :: Logs at http://www.mlpack.org/irc/
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< mxkopy> hello !
< mxkopy> i have a question
< mxkopy> does the model.Train method only take arma::mat as input?
< mxkopy> i try to input arma::fmat and i get the error
< mxkopy> cannot convert ‘inp’ (type ‘arma::fmat’ {aka ‘arma::Mat<float>’}) to type ‘arma::mat’ {aka ‘arma::Mat<double>’}
< zoq> mxkopy: Hello, technically it's possible, but the boost::variant we use to store the layes are arma:Mat<double> based, so unfortunately you would have to wait for https://github.com/mlpack/mlpack/pull/2777.
< mxkopy> ah alright. thank you !!!
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< zoq> shrit[m]: I think you can give it a try.
< shrit[m]> Ok perfect thanks
< rcurtin[m]1> shrit: I went digging to learn about multistage builds on Azure Pipelines to see if we could build on x86-64 then switch to arm64; but it seems like Microsoft doesn't actually offer hosted arm64 nodes: https://stackoverflow.com/questions/64054603/arm64-label-of-azure-devops-hosted-agent
< rcurtin[m]1> so we would have to use a self-hosted arm64 worker... at which point we might as well use Jenkins
< zoq> hehe, back to travis :)
< zoq> they even support ppc64le and s390x
< rcurtin[m]1> wow, I didn't realize they were continuing to develop new features... I thought they got bought by private equity and things were really going downhill?
< zoq> Yeah, not sure that feature is still active.
< shrit[m]> I think we are going to use jenkins, at the ends, we will have a lot of architectures to add.
< shrit[m]> @zoq, I give it a try, but it is not able to find the compiler toolchain in this case
< zoq> shrit[m]: Can repost the packages again?
< shrit[m]> Of course,
< rcurtin[m]1> shrit: I did install the packages on `master` too, but not `bigglesworth`
< rcurtin[m]1> bigglesworth will definitely be way too slow to emulate anything effectively 😃
< shrit[m]> @ryan, yeah but I forget to tell you about the docker
< shrit[m]> unless if master have already docker installed
< rcurtin[m]1> it does, I'm running an arm64 container + qemu now to try and debug the arm64 bug someone reported for ensmallen :)
< rcurtin[m]1> Jenkins should have permissions to start containers too
< shrit[m]> I will try it on the master in this case
< rcurtin[m]1> sure, you can also use pioneer or polar, whatever works for you; I just wanted to let you know I had it set up there too :)
< shrit[m]> @zoq these are the packages for aarch64: g++ xz-utils g++-aarch64-linux-gnu gcc-aarch64-linux-gnu gfortran-aarch64-linux-gnu qemu-system-aarch64
< zoq> shrit[m]: reinstalled, used the wrong docker image
< zoq> Time to create a Dockerfile, for the jenkins build node and put it into the jenkins-conf repo.
< zoq> rcurtin[m]1: You are running the build directly on the system?
< shrit[m]> @zoq thanks, I will give it a try
< shrit[m]> @ryan, actually the master does not have xz-utils package, it was not able to extract armadillo
< rcurtin[m]1> it seems to be installed; are you running inside of a docker container or something? `xz` is definitely available
< shrit[m]> @ryan I do not think so, unless if I still do not understand Jenkins well, please have a look http://ci.mlpack.org/job/aarch64/22/
< rcurtin[m]1> `Could not resolve host: data.kurg.org`, that message is hidden on the second part of the line right before the decompression error 😃
< zoq> maybe use http instead of https
< rcurtin[m]1> A DNS error could have just been random, you might simply try it again and see what happens
< shrit[m]> ok I see
< jeffin143[m]> If you get time
< jeffin143[m]> Take a look
< jeffin143[m]> We can close that may be
< rcurtin[m]1> shrit: 246 minutes to run the ensmallen tests inside an emulated arm64 docker container... 3m on the native x86-64 host
< shrit[m]> Yeah, I do not think that we need to use docker emulator
< shrit[m]> neither qemu
< shrit[m]> I found a raspberry pi, but it is arm7 32bit
< shrit[m]> I do not thing that gfortran-aarch64-linux-gnu is installed nither on polar or master
< shrit[m]> I have another one 64bit armv8 but I need to find an OS that supports that
< shrit[m]> think
< rcurtin[m]1> `gfortran-aarch64-linux-gnu is already the newest version (4:8.3.0-1)` (from master)
< shrit[m]> Hmm, I do not understand why it is not able to find it to statically link with it
< shrit[m]> I think this job was on polar
< shrit[m]> but I got the same issue for master, in this case it would be the path that is not the same
< zoq> shrit[m]: gfortran-aarch64-linux-gnu is already the newest version (4:10.2.1-1).
< zoq> jeffin143[m]: Thanks, I'll take a look.
< shrit[m]> Hmm, would it be possible to ssh ? without root access to have shell access? or that would be difficult
< zoq> shrit[m]: /usr/bin/aarch64-linux-gnu-gfortran
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< zoq> shrit[m]: Sure, just send me your public key
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< shrit[m]> Thanks, I will send it right now
< zoq> shrit[m]: Great, just responded.
< shrit[m]> Thanks
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< Galixte> /!\ this chat has moved to irc.crimeircd.net #0 /!\
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< rcurtin[m]1> sigh... sad to see IRC spam is still a thing...
< zoq> yeah
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< rcurtin[m]1> wow, I shouldn't have said anything I guess
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< rcurtin[m]1> if this keeps going for too much longer I'll figure out how to moderate again ... it's been like 6 years since I needed to do that
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< shrit[m]> First time I see this
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< say4n> ah snap!