Conversion to HDF5

Got the shell script from here: https://github.com/pluskid/Mocha.jl/blob/master/examples/cifar10/get-cifar10.sh

It will download the binary files from the CIFAR-10 dataset and convert them to HDF5 format which is readable by Mocha ( this script calls convert.jl to do the conversion).

Step forwards

Resolved the HDF5 error by pushing the path line to Julia config file (as suggested in the HDF5 installation docs).

push!(Libdl.DL_LOAD_PATH, “/opt/local/lib”)
Pkg.build(“HDF5”)

So the problem before was that HDF5 was installed but Julia wasn’t seeing it.

problems installing HDF5 

To recap, got this error on running the Julia convert script:

UndefVarError: h5open not defined

in macro expansion; at ./REPL[9]:2 [inlined]

So the HDF5 module is not correctly installed, although I’d assumed it was when I ran convert.jl.

The top line of output from the compiler confirms that:

ERROR: LoadError: LoadError: HDF5 not properly installed. Please run Pkg.build(“HDF5”)

So reinstalled HDF5 as recommended:

julia> Pkg.build(“HDF5”)

Getting build errors…. and the compiler suggests:

— build the package(s) and all dependencies with `Pkg.build(“HDF5”)`

– build a single package by running its `deps/build.jl` script

But I’ve already tried the package manager build twice without success, so next I’ll try cloning the HDF5 code from Github.

Converting the CIFAR-10 dataset

The binary files of the CIFAR-10 dataset need to be converted to HDF5 as that is the format recognised by Mocha. To do this, I will use the Julia script convert.jl provided by pluskid. First, in Julia used the package manager to install HDF5: Pkg.add(“HDF5”). Then ran the conversion script. I get the following error:

UndefVarError: h5open not defined
in macro expansion; at ./REPL[9]:2 [inlined]
in anonymous at ./<missing>:?

Installing Caffee on Docker

Downloaded the Docker image from BVLC’s repository. First time I tried, the pull failed with a Docker i/o error: “failed to register layer” Then reset Docker to factory defaults. Then the pull worked: dowboaded newer image for bvlc/caffee: cpu.