Update DESCQA web app's landing page

[yymao]

DESCQA web app's landing page currently points to the "latest full run," which is something that we no longer do, because the run time of all tests on, even a subset of catalogs, is prohibitively long.

As a result, the landing page keeps pointing to a pretty outdated run. We should update the landing page behavior so new users won't be confused.

Suggestions are welcome.

(Thanks to @katrinheitmann for raising this issue; cc @evevkovacs)

[rmandelb]

Regarding the DESCQA landing page, may I suggest that until a decision is made, there should be a warning at the top about the "last full run" and summary matrix being very outdated / not useful and that people should browse the list of all runs? (If I carefully read the fine print, it's clear that it's from February, but I'm not sure everybody will carefully read the fine print. I didn't notice it until my 2nd time going through.) This might be quick to do, even if there's no convergence yet on what to replace this with.

As for what to replace this with, I could imagine picking a limited number of catalogs that are particularly relevant, like the version of protoDC2 used for Run 1.2p/i, plus the very latest cosmoDC2, and have links to the runs with tests for those catalog versions (I realize there will be >1 link per catalog since you're not running all tests at once - but what I mean is that you could give a single link for a search output that lists all runs for that catalog). In practice, we particularly want to support people who need to check versions of the catalogs that work/papers will be based on, and giving links to find all test outputs for those catalog versions seems like a minimalist way to do that?

[evevkovacs]

Thanks for the suggestions. The search feature has some of this capability already. For example, if I search on "cosmoDC2_v1.1.4" I see: this list (https://portal.nersc.gov/project/lsst/descqa/v2/?users=&tests=&catalogs=cosmoDC2_v1.1.4&run=all), which is useful because not many tests have been run with this catalog yet. But we could tweak this to make it better.

[yymao]

Thanks for the suggestions.

The issue #161 is exactly intended to solve this issue (i.e., by tagging a few runs for general consumptions). It's on my to-do list, just not close to the top of list yet...

In the meantime, I agree updating the front page is more urgent. Let me see if I can do something simple here...

[yymao]

Closed by #163