Problem (precision) with the SHC tests

[giovannipizzi]

The new SHC tests (introduced in #264 by @qiaojunfeng) are failing on some compilers, see:

http://130.186.13.169:8010/#/builders/15/builds/20/steps/5/logs/stdio

http://130.186.13.169:8010/#/builders/12/builds/26/steps/5/logs/stdio

http://130.186.13.169:8010/#/builders/18/builds/22/steps/6/logs/stdio

Is this expected (and increasing the threshold in the tests is ok) or does it hint at a bug?

[qiaojunfeng]

It seems that all the errors are less than 1e-2 relative to the benchmark values. I don't have much experience in these precision issues of compilers, but from a physical point of view, these results are acceptable.

[giovannipizzi]

Fixed in #273

[giovannipizzi]

I'm actually reopening this - there are still two tests failing:

• http://130.186.13.169:8010/#/builders/18/builds/26
• http://130.186.13.169:8010/#/builders/7/builds/27