Changed mnist map size, paths, file extensions

[joelself]

For the mnist example convert_mnist_data.cpp creates a 1 TB lmdb which fails if you don't have a terabyte to spare on your drive. I reduced it to 75 MB.

The scripts also assume that that executables will end with bin when on Windows they end with exe so I changed those too.

The location of binaries is different on Windows as well. I changed the path of the mnist examples to use the Windows path (the Release path, still won't work for Debug builds).

[ajtulloch]

-- /home/travis/build/BVLC/caffe/build/../examples/mnist/convert_mnist_data.cpp:101:  Tab found better to use spaces  [whitespace/tab] [1]
CMake Error at /home/travis/build/BVLC/caffe/cmake/lint.cmake:46 (message):
  Lint found 1 errors!
make[3]: *** [CMakeFiles/lint] Error 1
make[3]: Target `CMakeFiles/lint.dir/build' not remade because of errors.
make[2]: *** [CMakeFiles/lint.dir/all] Error 2
make[1]: *** [CMakeFiles/lint.dir/rule] Error 2

Looks fine except the lint error? Could you change tabs to spaces and update please?

[joelself]

Sorry about that. I couldn't get NuGet to work properly and the only way to get it working was to completely reinstall Windows and VS and I hadn't yet turned on visible spaces/tabs.

I also fixed the comment that said "1 TB" to say "75 MB" instead.

[ajtulloch]

Looks great. Could you squash into a single commit please?

[lukeyeager]

For the mnist example convert_mnist_data.cpp creates a 1 TB lmdb which fails if you don't have a terabyte to spare on your drive. I reduced it to 75 MB.

Can we please merge #3731 instead of this temporary fix?

[shelhamer]

#3731 does look to be a more general solution.

[joelself]

I agree #3731 is a more comprehensive solution. Feel free to close this.

[shelhamer]

Closing in favor of #3731 but thanks @joelself for raising the issue and contributing a local fix to remind us. If anyone can do a quick check of #3731 for their own IO that'd help.