I have an error: Illegal instruction (core dumped). What should I do?
I meet this error when using GROMACS, a package for my research. I don't think this is a GROMACS's error but an error of C because GROMACS is written from C++ (I know this after have been googling around). That's why I put this question in here. I know nothing about C. Is it impossible to solve?
This is my conversation to GROMACS team. In short:
fftw3 by ./configure --enable-float,
cmake .. -DCMAKE_PREFIX_PATH=/usr/local,
source /usr/local/gromacs/bin/GMXRC(you may need to add this line into your
~/.bashrcfile so that it will auto activate anytime you open a new shell)
If you use an old machine, I think you should use old version. Hope this help :)