RecurDyn Linux solver has an ability to co-simulate with particle solvers using SPI. To run co-simulation with particle solver, the Environment Variable for SPI must be set. Then RecurDyn Linux solver can find the SO library file for a particle solver.
Requirements for a particle solver to co-simulate with RecurDyn in Linux
To run the particle solver in RecurDyn, two settings are needed.
•Setting SPI Coupling SO Library File: The SPI coupling SO library file acts as a communication channel between RecurDyn and the particle solver. RecurDyn loads the SO file when a co-simulation starts.
•Setting Environment Variable for SPI: The environment variable for SPI tells RecurDyn solver the location of the particle solver coupling SO library file.
Environment Variable for SPI
•Key: SPI_PATH_[Name]
•where [Name] is the same as the value of the <Name></Name> element in XML configuration file.
•Value: <Coupling SO library file path>
•The path of the coupling SO library file, including the complete file name.
•The path must be absolute.
•For example:
•Name element in XML configuration file: <Name>ParticleSolver</Name>
•Command Line: export SPI_PATH_ParticleSolver=/opt/ParticleTest/ParticleSolverLibrary.so
To run a RecurDyn SPI model in Linux
1. A model must first be created in the RecurDyn GUI in Windows. Please refer to the RecurDyn Manual for SPI for a general overview of co-simulation between RecurDyn and particle solvers.
2. In order to generate the RecurDyn solver data input file, the co-simulation with the particle solver must be started in the Windows version of RecurDyn.
3. The user must copy the RecurDyn solver and particle solver data input file to the Linux system.
4. The user adds the environment variable for SPI on the Linux additionally.
5. Then the RecurDyn Linux solver can execute the simulation using the data file as input.