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Sergey
qcplab@gmail.com

I have idea to recover a higher order correlation energy from MP4 single point energy run based on MP2 optimized geometry, however I failed to run my job because of memory limits. My job is 800 functions cc-pVTZ for stacked adenine system.

Can you give me idea how MP4 job memory demands relate to MP2 (RHF, ENERGY, METHOD=1) demands, for single poin energy runs? So far I have for MP2 ~ 48MW and over 390 MW for MP4. Is that really normal or did I miss some input cards?


Thank you!