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ifort -L/opt/intel/compilers_and_libraries_2018.0.128/linux/mkl/lib/intel64 -WB -i8 -ftz -static-intel -fp-speculation=safe -xCORE-AVX2 -qopenmp -auto -O3 -c test013720.f
catastrophic error: **Internal compiler error: segmentation violation signal raised** Please report this error along with the circumstances in which it occurred in a Software Problem Report. Note: File and line given may not be explicit cause of this error.
compilation aborted for test013720.f (code 1)
make[1]: *** [test013720.o] Error 1
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If you change the -O3 to -O2, then below there is another error that never was.
