Gaussian 16 Linux Link

# Extract to /opt or /home tar -xjvf G16_AVX2.tbz -C /opt/ chmod -R 750 /opt/g16 The critical part: Environment Variables echo 'export g16root=/opt' >> ~/.bashrc echo 'export GAUSS_SCRDIR=/scratch/$USER' >> ~/.bashrc echo 'source /opt/g16/bsd/g16.profile' >> ~/.bashrc

Yes, the learning curve for bash is steeper than clicking a .exe . But once you learn to chain jobs with ; , run background processes with & , and monitor htop , you will never go back. Gaussian 16 Linux

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This usually means your shell limits are too low. Linux has a hard limit on "Max user processes." # Extract to /opt or /home tar -xjvf G16_AVX2

cd /opt/g16 ln -sf g16_avx2 g16 Linux handles I/O differently than Windows. Gaussian’s algorithm relies heavily on reading/writing to disk. If you use a standard SATA SSD, your expensive CPU will spend 80% of its time waiting. Linux has a hard limit on "Max user processes

If you see avx2 , use that binary. Rename the link:

%Chk=opt_freq.chk %Mem=32GB %NProcShared=16 %R2C=2 #p opt freq b3lyp/6-31g(d) int=ultrafine Title