Seg fault with GFortran 9

[pjstanle]

Hello!

I'm trying to get OpenFAST running. I have cloned, installed, and tested with the following code from the documentation:

However, I get the following failures when performing the regression tests:

When I run a verbose test, I find that the issue (I think) is a segmentation fault regarding a .log file.

I have checked, and the .log file exists at the indicated path, but it is blank (not sure if this is a problem). I tried updated my gcc compiler, and have experienced the same issue. Are there any thoughts on how to solve this problem?

Thanks in advance for any solutions

[rafmudaf]

What is your system information?

System Information (please complete the following information):

• OS: [e.g. Ubuntu 14.04 or macOS 10.12]
• Compiler: [e.g. GFortran 4.4]
• Compiler settings: [e.g. CMake flags or other settings]

[pjstanle]

OS: macOS 10.11.6
Compiler: GNU Fortran (Homebrew GCC 9.2.0_1) 9.2.0
Compiler settings: -DBUILD_TESTING=ON

[rafmudaf]

@pjstanle this is indeed a bug! However, its only a problem with the highest level of compiler optimization (-O3) on the GNU Fortran compiler versions 8+. I've made a fix and pushed it to my fork: the fix. After more testing, I'll issue a pull request to bring this to the dev branch.

In the meantime, you could take my changes and incorporate them into your repository or compiler with a lower optimization level. To do that, use CMake:

cmake .. -DCMAKE_BUILD_TYPE=RELWITHDEBINFO
make install

[rafmudaf]

This CMake build type uses -O2 optimization rather than -O3.

[rafmudaf]

@pjstanle the fix for this has been merged into the dev branch. Comment again here if you still run into problems.