- add a second thread to separate OTF file operations and trace operations : not as much parallelism as in Paje as file operations are more efficient for OTF (as for Paje parsing, flag MT_PARSING)

- multithreaded loading of serialized files : moves loading from the main thread to multiple threads, as for serialization.

- beginning of the work with MPI : work can now be distributed and several intervals loaded from several machines and displayed there. 

How to use: the flag USE_MPI must be set, links  -lboost_mpi -lmpi -lmpi_cxx must be added in src.pro

mpicc and mpic++ have to be used instead of gcc and g++. This can be set manually in src/makefile, but will be reseted by the global makefile. Another solution is to add

unix{
QMAKESPEC = mpicc
QMAKE_CXX = mpic++
}

to the src.pro file.

To launch on a single machine :
mpirun -np nprocess vite path/to/file.vite2/configure

on several machines with separated screens and a machinefile to list them :
- allow ssh authentification without password (by key)
- allow display on each distant machine with "xhost +"
- have a split folder in a folder accessible with the same path for each machine (nfs or local)
- have vite in the path for each machine
- use mpirun -np nprocess -hostfile machinefile -mca orte_rsh_agent "ssh -X" -xDISPLAY=:0.0 vite -tInterval path/to/file.vite

This will split the given interval in nprocess parts and send them for display to the various nodes described, displaying on their local display