OrthogonalizeColumn Weighted sometimes fails on Intel #671
Description
Example:
Device configuration: omp,cpu
Memory configuration: host-std
libCEED backend: /cpu/self/xsmm/blocked
Filters: "OrthogonalizeColumn Weighted - Real 1" [Serial]
Randomness seeded to: 2068165894
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
palace-unit-tests is a Catch2 v3.8.1 host application.
Run with -? for options
-------------------------------------------------------------------------------
OrthogonalizeColumn Weighted - Real 1
-------------------------------------------------------------------------------
/home/runner/work/palace/palace/test/unit/test-orthog.cpp:276
...............................................................................
/home/runner/work/palace/palace/test/unit/test-orthog.cpp:321: FAILED:
CHECK_THAT( w[0], WithinRel(-w[1]) )
with expansion:
-0.00052872439846385 and -0.00052872439846396 are within 2.22045e-12% of each
other
-------------------------------------------------------------------------------
OrthogonalizeColumn Weighted - Real 1
-------------------------------------------------------------------------------
/home/runner/work/palace/palace/test/unit/test-orthog.cpp:276
...............................................................................
/home/runner/work/palace/palace/test/unit/test-orthog.cpp:321: FAILED:
CHECK_THAT( w[0], WithinRel(-w[1]) )
with expansion:
-0.00052872439846385 and -0.00052872439846396 are within 2.22045e-12% of each
other
===============================================================================
test cases: 1 | 1 failed
assertions: 9 | 7 passed | 2 failed
https://github.com/awslabs/palace/actions/runs/22965864977/job/66669136571?pr=668
This is intermittent. Probably related to floating point precision.