Tips for running MPI versions
Tachyon supports the use of MPI for distributed memory rendering
of complex scenes. Most commercial supercomputers and cluster
vendors provide their own custom-tuned implementations of MPI
which perform optimally on their hardware. Homegrown clusters
typically use open source implementations of MPI.
While Tachyon will work with any comformant implementation of MPI,
some implementations perform much better than others. In the
author's experience, the OpenMPI and MVAPICH implementations
of MPI give the best performance on commodity cluster hardware.
john.stone@gmail.com