GROMACS modification: Yes/No
Here post your question
i am doing pca analysis of dna alone in which i get the error diagonalising segmentation fault core dumped by using the command-gmx trjconv -s md_0_300.gro -f md_0_300.xtc -o md_pca.pdb -e 1000
gmx covar -s md_0_300.gro -f md_0_300.xtc
By selecting the entire system, you’re building a massive matrix that is likely exhausting the memory available on your computer. There is also no reason to include water or ions in the analysis.