Identify what's causing segmentation fault in Yambo

There may be different reasons why the Yambo code generates segmentation faults in a run.
To help Yambo developers understand where the problem lies and help you, please follow the steps below, see if they solve your problem and then report the result in the forum.

Rule out possible causes of the segmentation fault:

1. GPU
   Are you running Yambo with GPU support? In this case try to recompile without --enable-cuda flag. If this solve the problem report your bug in the section Yambo on GPU machines otherwise to the next step.
2. OPEN-MP
   Try to compile and run without open-mp support, no --enable-open-mp flag in compilation and OMP_NUM_THREADS="1".
3. Internal Lapack/Blas
   Try to compile with internal Lapack/Blas libraries --enable-int-linalg in the configure.
4. Internal FFT
   Try to compile with internal FFT libraries --enable-internal-fftsg in the configure