ParaView provides an engine plugin for ADIOS that simplifies using Catalyst. In Situ Visualization with ParaView Catalyst and Fides ¶įides has also been integrated into ParaView Catalyst. On all steps, we call UpdateVis(), which simply tells ParaView to update the pipeline and save a screenshot to the directory specified by the output_path argument we passed to the script. The full explanation of the ParaView objects used is outside the scope of this guide, see the ParaView User Guide. On the first step, we call SetupVis(), which sets up our visualization pipeline and returns the render view. If the step status is NotReady, internally Fides will wait until the next step is ready. NextStepStatus if status = EndOfStream : print ( "ADIOS StepStatus is EndOfStream" ) return if step = 0 : renderView = SetupVis ( fides, varname ) UpdateVis ( renderView, output_path, int ( step )) step += 1įides.NextStepStatus will only return either EndOfStream or OK. UpdatePipelineInformation () status = fides. PrepareNextStep () # let ParaView know we need to update the pipeline info, # so we can get the status of this step fides. To run this example, you’ll need to build Fides with the CMake option -DFIDES_ENABLE_EXAMPLES=ON.ĬMake should also copy the configuration files needed to your build folder, so all files referenced in the example should be located in /path/to/fides-build/examples/gray-scott.ĭef Streaming ( fides, output_path, varname ): step = 0 renderView = None while True : status = NotReady while status = NotReady : # essentially calls BeginStep on ADIOS engine being used fides. We are including the Gray-Scott code in the Fides repo under examples/gray-scott, so you do not need to pull anything from ADIOS Examples. The Gray-Scott example is pulled from the ADIOS2 Examples repo. Use the CMake option -DPARAVIEW_USE_PYTHON. The Fides reader can be used with or without MPI.įor our examples in this guide, we will be showing how to use the Fides reader with ParaView’s Python scripting support, so you should also build with Python support. To get the Fides reader in ParaView, you’ll need to add the CMake option -DPARAVIEW_ENABLE_FIDES=ON.įides is included as a third party module, so you do not need to build your own version of Fides to use in ParaView.ĪDIOS2 is required and you may need to set the environment variable ADIOS2_DIR if CMake cannot detect the location of your ADIOS2 build.įor MPI support in ParaView, you can set the CMake option -DPARAVIEW_USE_MPI. If you’re used to building ParaView, the instructions don’t change much for building Fides.įull ParaView build instructions are outside the scope of this guide, but can be found in the ParaView repo. To enable Fides support in ParaView, you can either build from source or download the binaries for your system. Building ParaView with the Fides Reader ¶ We’ll explain here how to build ParaView with the Fides reader,Īs well as provide an example on how to use the reader in ParaView. Fides is now available as a reader in ParaView.
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