Linux [extra Quality]: Gaussian 16

Before running Gaussian 16 on Linux, make sure your system meets the minimum requirements:

R=0.96 A=104.5

Comprehensive Guide to Installing and Running Gaussian 16 on Linux gaussian 16 linux

| Component | Recommended Specification | Notes | | :--- | :--- | :--- | | | ~2-3 GB (executables) + 200 GB+ (scratch) | The program files require 2-3 GB. For large jobs, especially post-SCF calculations like MP2 or CCSD, temporary scratch space of up to 200 GB or more is essential. | | Memory (RAM) | 256 GB or higher | While the default memory allocation in Gaussian is 800 MB, computational nodes for production runs often feature 256 GB or more to handle large systems. | | Swap Space | 1-2 GB | This is in addition to physical RAM. | | CPU | Modern x86_64 with AVX2 support | For optimal performance, CPUs that support the AVX2 instruction set (e.g., Intel Haswell or newer) are highly recommended. |

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Do not use network-attached storage (NAS) like NFS for scratch space, as network latency will drastically degrade calculation speeds. 2. Installation and Environment Setup

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Computational chemistry runs can take days or weeks. Fine-tuning your setup prevents wasted clock cycles. 1. Match Directives to Hardware

This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. | | Swap Space | 1-2 GB |

The g16root variable points to the parent directory of the Gaussian folder, and GAUSS_SCRDIR specifies the scratch space.