Today, a college told me his project testcases (using googletest) run failed with following errors:
1/6 Test #1: AddTest ....................***Exception: Illegal 1.70 sec
......
I am not familiar with his work nor an expert of googletest, but interested about this exception. After some searching, I bumped into the words from this post:
Given that the GROMACS build system enabled AVX2 SIMD on your VM which seems to not support anything above SSE2, it’s not a surprise that the first math instruction crashes the run.
Immediate solution: set -DGMX_SIMD=SSE2 when configuring.
So my buddy seemed meet the similar problem. After discussing with him, he confirmed his server is also a virtual machine and his issue is the same root cause. To satisfy my own curiosity, I download tfhe whose testcases use AVX and FMA while my machine can only support SSE. Run “make test“:
# make test
Running tests...
Test project /root/Project/tfhe/build
Start 1: unittests-nayuki-portable
1/4 Test #1: unittests-nayuki-portable ........ Passed 8.59 sec
Start 2: unittests-nayuki-avx
2/4 Test #2: unittests-nayuki-avx .............***Exception: Illegal 2.88 sec
Start 3: unittests-spqlios-avx
3/4 Test #3: unittests-spqlios-avx ............***Exception: Illegal 2.86 sec
Start 4: unittests-spqlios-fma
4/4 Test #4: unittests-spqlios-fma ............***Exception: Illegal 2.85 sec
25% tests passed, 3 tests failed out of 4
Total Test time (real) = 17.19 sec
The following tests FAILED:
2 - unittests-nayuki-avx (ILLEGAL)
3 - unittests-spqlios-avx (ILLEGAL)
4 - unittests-spqlios-fma (ILLEGAL)
Errors while running CTest
make: *** [Makefile:95: test] Error 8
We can see “Exception: Illegal” errors are reported again.