Molecular modelers often encounter a common challenge: limited computational resources on personal machines, especially when tackling large and complex molecular systems. Running GROMACS stages like equilibration or production molecular dynamics locally can be a significant bottleneck. This is where the GROMACS Wizard in SAMSON becomes invaluable — offering cloud-based computing to seamlessly overcome local hardware constraints.
The Convenience of Cloud Computing for GROMACS
With SAMSON’s GROMACS Wizard, you can take advantage of cloud hardware for computation-heavy steps such as NVT Equilibration, NPT Equilibration, and Production Molecular Dynamics Simulations. This ensures that you’re not constrained by your local machine’s capabilities, enabling you to focus on the science rather than worrying about computational limitations.
Setting Up Your Cloud Job
Once your input structures and simulation parameters are ready, you’ll need to select a cloud machine suitable for your project. The process begins with the “Equilibrate in the cloud” or “Simulate in the cloud” button in SAMSON. The machine-selection dialog will guide you through:
- Choosing a machine type
- Selecting the storage size
- Reviewing the estimated costs
Scroll through the available machines to select one that balances performance and cost. For testing purposes, simple tasks can be executed on a 4 vCPU machine without a GPU, which is affordable yet efficient for small-scale jobs.
Efficient Monitoring and Management
Once your job is submitted, SAMSON’s Job manager comes into play. It allows you to:
- View job progress at a glance
- Track the current cost
- Pause or cancel jobs
During initialization, job files are prepared and uploaded automatically to cloud storage. Ensure the “Running” checkbox in the Job manager is selected to observe real-time updates.
Once started, you can use the Events tab to view estimated completion times and any messages related to the job’s progress.
Downloading and Importing Results
After completion, you’ll receive an email notification. Results can be downloaded through the Job files window in the Job manager. From here, you can:
- Download individual files
- Download all files
- Directly import results into SAMSON
Here’s an example of downloading all the files:
Once downloaded, the results can be efficiently imported into the GROMACS Wizard using the Import Results button, streamlining subsequent analysis workflows.
Why Use SAMSON for Cloud Jobs?
SAMSON provides a unified platform where you can upload, monitor, and download jobs with intuitive tools designed for molecular modelers. Its seamless cloud integration is especially valuable for simulations that exceed the computational capacity of local systems.
Ready to discover more details or dive into the step-by-step toolsets? Explore the official documentation here to learn more about using the GROMACS Wizard for cloud jobs.
SAMSON and all SAMSON Extensions are free for non-commercial use. You can download SAMSON at https://www.samson-connect.net.