Bumped Ubuntu version to 18.04 for ci_gpu

[d-smirnov]

Bumped Ubuntu version to 18.04 for ci_gpu

[d-smirnov]

Bumped ci_gpu image Ubuntu version to 18.04 (for debug purposes as was unable to run tvm built on my 18.04 inside the 16.04 container) @areusch, @leandron

[leandron]

I think it is a good move to update it to 18.04, mostly because 16.04 is now EOL (https://ubuntu.com/about/release-cycle).

For the sake of this PR, can you clarify what is the error you see?

Also cc @tqchen

[d-smirnov]

@leandron I needed to re-run failed unit test inside ci_gpu docker environment, using my local tvm build and had a linkage error against libc.

[areusch]

cc @jroesch i think we should move all containers at once rather than just ci_gpu, though.

[leandron]

cc @jroesch i think we should move all containers at once rather than just ci_gpu, though.

So I guess what you're suggesting is to update all the existing 16.04 images to 18.04? Do you think we should do this on this PR? I think we can do that, and I think it is a good move as 16.04 is now EOL, just would like to have a decision on what needs to be done.

cc @jroesch @areusch

[areusch]

cc @jroesch i think we should move all containers at once rather than just ci_gpu, though.

So I guess what you're suggesting is to update all the existing 16.04 images to 18.04? Do you think we should do this on this PR? I think we can do that, and I think it is a good move as 16.04 is now EOL, just would like to have a decision on what needs to be done.

cc @jroesch @areusch

Jared thinks we should just do it on this PR and perform the update, but let's see what we are currently blocked on. Created a GH tracking issue #7995.

[areusch]

hi guys, sorry for the delay here. we (@tkonolige and i) are going to attempt to update to 18.04 as part of #7995. we'll patch this PR and rev all the dockerfiles to 18.04, then see if we can build and get tests passing without the GPU driver issue. will send further updates to the GH issue. if our tests pass, we can merge either this PR or another like it which bumps all Dockerfiles, and then flip the CI images in Jenkinsfile

[areusch]

okay sorry I was talking past myself. as @tkonolige pointed out, all other container are on 18.04 already. merging to get this into #7995 .