assess Raptor Talos for testing
We have a Raptor Systems Talos II that we plan to use primarily for correctness testing and CI. As a first step we will check builds of 2019 using the relevant compilers (latest and default GNU on IBM Power9 platforms, i.e. gcc 6 and 8).
Secondly, we will assess how well does the performance of this CPU/system represent that of an IBM Power9 before doing further performance testing / compiler flag checks (lower prio).
#3 Updated by Szilárd Páll about 1 year ago
- File make-check-gcc6.log make-check-gcc6.log added
- File make-check-gcc7.log make-check-gcc7.log added
- File make-check-gcc8.log make-check-gcc8.log added
Some funny compiler warnings aside -- which I'm not sure are worth working around unless we encounter them in our CI -- compilation and unit/regression tests are all fine with the default Power9 flags.
Attached are the build output logs.
However, looking at the differences between the Power8 and Power9 support to track down #2747 I noticed that on Power8 we use
-mpower8-fusion, but on Power9 this flag was dropped. Adding it back seems to allow reproducing possibly both #2746 and #2747.