3. Simulations¶

As scientists and engineers, we all the know the importance of simulations in solving complex real-world problems safely and accurately. Simulations make information and data conveyable for better decision-making. d3VIEW provides the ability to manage, create, track, compare and share your simulations and their data more effortlessly and efficiently. The Simulations application is divided into four main parts: Preview, HPC Job, Files and Responses. In this tutorial, we’ll review navigating the home page and these sections, so you can start managing your simulations more effectively.

What Will Be Covered

My Simulations Page
Preview and Simulation Details
Errors and Warnings
HPC Job
Simulation Files
Simulation Responses

3.1. My Simulations¶

From the d3VIEW home page, click on the Simulations button in the left side panel to go to the Simulations main page. Here, you can use the drop down or search bar to sift through all your simulations. You can also access simulations from the Dashboard Home if you have it customized to show the ‘All Simulations’ section. This simulation viewing list allows you to use specified filters to search for simulation and is particularly useful for finding simulations you do not own, like ones shared with you.

My Simulations

3.2. Simulation Details¶

Click on a simulation in the list to open the window viewer and see its contents.

Open Simulation Viewer

The first section at the top, ‘Details’ provides a real-time status of the simulation while it is running. The right side panel allows you the visualize different elements of the running job. Some useful information to examine are energy balance, minimum time-step history and time remaining for completion. Energy balance provides incite into detecting any abnormalities in the simulation and, if required, kills it before the end time. You can also click on the last section ‘Errors and Warnings’ to identify any issues with the simulation. Once the HPC has completed computing the simulation, this section will be listed as ‘Details’ instead of ‘Preview’.

Simulation Details

Simulation Processing Statuses¶

Here is a graphical representation of the processing statues a simulation runs through while solving:

Simulation Processing Statuses

3.3. HPC Job¶

In order to run a simulation on the HPC, you have to submit a job. To start a new job submission, click on ‘New Simulation’ in the upper right corner of your Simulations page and follow the instructions presented in the previous tutorial section: Job Submission. Submitting a job requires a specified configuration which can be reviewed after clicking on the respected simulation and going to the HPC Jobs tab at the top. This tab provides the job submission history such as the node the job was submitted to, the number of CPUs used, etc. The information can be useful as comparisons and guides for submitting new simulations.

HPC Job

3.4. Simulation Files¶

All the output files generated by the solver (bin-outs, d3plot, solver.log etc.) are available in the Files tab. Select files to download or share, even add a new file.

Simulation Files

Click on the name of a file to view its contents in the Data Viewer. You can edit or download the individual file through the viewer.

Simulation Files

File Watcher¶

You can watch files in Simulations using File Watcher which has options to refresh the timer and url. They following video shows an example:

Lucy Log¶

You can view lucy.log files for simulations and visualize the rate of communication between Lucy and d3VIEW.

Lucy Log

You can also change view type to log nester for lucy.log files which groups the aspects such as OUTPUT and ERROR.

Log Nester

3.5. Simulation Responses¶

Data output extracted from the simulation and its bin-outs, d3plots (nodal displacements, element_history, etc) are available in the Responses section. Top, front and left view animations are available for viewing by default. You can perform actions to selected responses from the drop-down like creating a template from the response or exporting it to PowerPoint. You can also perform actions on a single response such as viewing in full screen, exporting, sharing or duplicating it.

Simulation Responses

You can also add a new Response to your simulation by using the data extraction tool.

Extract Responses

Curve Responses link with d3VIEW’s Curve Viewing Application Newton for enhanced analysis. To learn about Newton, follow this link.

View Images¶

Use the View Images button to quickly view images in a simulation.

View Images

Filtering¶

Click on the filter icon at the top to use customized filters for sifting through your simulation responses.

Filter Responses

The datatype filter has an array of filetypes to choose from including MDF/DAT file options which have been adde as of February 16, 2022.

Filter Data Source

Comparing Responses¶

Simulation responses can be compared in Simlytiks with other simulation or physical test responses. The process is the same depending if you are comparing from the Physical Tests or Simulations page. To learn how to do this, please navigate to the Physical Tests section on Comparing Responses.

3.6. Simulation Mid-Run Extraction¶

NEW as of June 7, 2022: You can now extract stale/delete-and-extract/and extract transformations only. This avoids the need to manually remove old responses for a solving simulation.

Mid-Run Extraction

Here is an example:

Mid-Run Extraction Example

You can also use the refresh button if there are more responses to be extracted.

These options refresh data applied for partially completed simulation.

3.8. Simulation Comments¶

Under the Comments tab, add any important notes about the simulation. This is especially useful for team communication. As of March 19, 2022, you can now directly tag other d3VIEW users on your team as well as tag simulation IDs in a comment.

Simulation Comments

For additional questions about how to navigate the d3VIEW platform, please feel free to email our team at: support@d3view.com.