"ParaView is an open-source, multi-platform application designed to visualize data sets of varying sizes from small to very large."

See ParaView Users Guide – Public Wiki

One of the main purposes of ParaView is to allow users to visualize large data sets thatreside on HPC clusters without first collecting and downloading the data to a single machine. The local workstation, which is good at visualization, may not have the memory or computing power for rending jobs that benefit from MPI on a cluster. The solution is a client server model

See Client-Server chapter of Users Guide