| | 1 | |
| | 2 | == VisIt == |
| | 3 | https://wci.llnl.gov/simulation/computer-codes/visit/ Visit Home Page] |
| | 4 | |
| | 5 | VisIt is an Open Source, interactive, scalable, visualization, animation and analysis tool. From Unix, Windows or Mac workstations, users can interactively visualize and analyze data ranging in scale from small (<10^1^ core) desktop-sized projects to large (>10^5^) leadership-class computing facility simulation campaigns. Users can quickly generate visualizations, animate them through time, manipulate them with a variety of operators and mathematical expressions, and save the resulting images and animations for presentations. VisIt contains a rich set of visualization features to enable users to view a wide variety of data including scalar and vector fields defined on two- and three-dimensional (2D and 3D) structured, adaptive and unstructured meshes. Owing to its customizable plugin design, VisIt is capable of visualizing data from over 120 different scientific data formats (see this [http://www.visitusers.org/index.php?title=Detailed_list_of_file_formats_VisIt_supports partial list]). |
| | 6 | |
| | 7 | == Introduction == |
| | 8 | === Installation === |
| | 9 | * You can download executables from [https://wci.llnl.gov/simulation/computer-codes/visit/downloads here]. |
| | 10 | * You can download the source code and compile it. They provides a script that automatically builds VisIt with all dependent libraries. |
| | 11 | |
| | 12 | |
| | 13 | === Execution Models === |
| | 14 | ==== Stand alone ==== |
| | 15 | * Basically, you install VisIt on your desktop (laptop) computer in front of you. And visualize data stored in the file system in your computer. |
| | 16 | * If you ran simulations on the CCS cluster, you have to download the results data to the local computer with 'scp' or 'rsync' command. |
| | 17 | [[Image(StandAloneVisIt.png)]] |
| | 18 | |
| | 19 | ==== Server - Client System ==== |
| | 20 | * VisIt is able to visualize data stored in remote computers over the network. |
| | 21 | * You don't have to download the data into the local computer in order to visualize it. |
| | 22 | * For example: |
| | 23 | * Suppose you ran simulations on the CCS cluster and stored results in the scratch file system. |
| | 24 | * Run VisIt on the local computer and choose the remote file system when you open a data file. |
| | 25 | * VisIt program automatically runs on the remote computer and reads the data file. |
| | 26 | * You can work with VisIt as usual on the local computer. |
| | 27 | |
| | 28 | [[Image(ServerClientVisIt.png)]] |
| | 29 | |
| | 30 | * You must have same major version of VisIt on both local and remote computers. |
| | 31 | * Run "VisIt" on local machine and go to "Options" -> "Host profiles…" add "cypress2.tulane.edu" like below: |
| | 32 | [[Image(Visit host set.png)]] |
| | 33 | |
| | 34 | * Note that "/share/apps/visit/2.9.2" is where VisIt is installed on cypress. This may be changed in the future. |
| | 35 | * The version is 2.9.2 so you have to use visit 2.9.*. |
| | 36 | * After setup, do not forget to save : Go to "Options" -> "Save Settings". |
| | 37 | * One setup and saved, you don't have do this again. |
| | 38 | * To read data on cypress, "Open" and choose a Host, there must be "cypress2.tulane.edu" on the list. |
| | 39 | * You may be asked typing password every time you read data. |
