Gaussian 16 | Linux

Create a test input file named water.gjf using a text editor:

: It integrates seamlessly with workload managers like SLURM , allowing researchers to distribute intensive jobs across multiple nodes.

If you are running on a local Linux server via SSH, you can keep your Gaussian job running even after disconnecting by using nohup : gaussian 16 linux

Gaussian 16 generates massive temporary files during calculations (integral storage, transformations).

In this setup, Gaussian launches 8 shared-memory threads on each of the three network nodes ( node1 , node2 , and node3 ), coordinating the workloads over high-speed interconnects like InfiniBand. 4. Performance Tuning and Optimization Tips Create a test input file named water

In some Slurm environments, you can automate this by capturing the allocated core list and passing it to the g16 command:

You should see the Gaussian banner and no fatal errors. set this to a slow network drive or

GAUSS_SCRDIR : Specifies where Gaussian writes its massive temporary scratch files ( .rwf , .int , .chk ). set this to a slow network drive or a standard mechanical HDD; use a local fast SSD. Apply the changes immediately: source ~/.bashrc Use code with caution. 4. Managing Memory and CPU Allocation

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%mem=4GB %nprocshared=4 #chk=water.chk # B3LYP/6-31G(d) Opt Water Molecule Optimization 0 1 O 0.000000 0.000000 0.117790 H 0.000000 0.755453 -0.471161 H 0.000000 -0.755453 -0.471161 Use code with caution.