DFT related softwares: VASP,ab initio,DFTB,ELK,WIEN2K

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The discussion focuses on various density functional theory (DFT) software options, including VASP, ab initio, DFTB, ELK, and WIEN2K. Participants share insights on the advantages and disadvantages of each software. VASP is noted for its user-friendly interface and extensive capabilities, while ab initio is recognized for its accuracy in quantum mechanical calculations. DFTB is appreciated for its speed in large-scale simulations but may sacrifice some accuracy. ELK is highlighted for its open-source nature and flexibility, whereas WIEN2K is favored for its detailed electronic structure calculations but can be complex to use. Overall, the conversation emphasizes the importance of selecting the right software based on specific research needs and computational resources.
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There are many DFT(density functional theory) related softwares,for example,VASP,ab initio,DFTB,ELK,WIEN2K,and so on. Which one do you use?
What are the advantages and disadvantages of these first principle softwares in your opinion?
 
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I'd be interested in seeing the answer to this question as well :)
 

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