In Src/Utils/Site_dox/ you can find different files containing all the information that was given by Site and Wiki. Simply make doc, and open Build/Doc/html/index.html with a browser to see it. I will update the online doc after your advices. The Contributor section of FContact.dox is empty, because I didn't have the names neither the adresse of the contributors

MpiBuffer works fine, a test file using MPI and Rotation kernel has been created in Tests/Utils, FBufferWriter/Reader is no longer used in testFmmAlgorithmProc

FMpiBuffer reader and writer are ok. There are only used by FFmmAlgorithmThreadProc :: M2M for the test. Changes will be spread out everywhere.

getInteractionneigbors and getNeighbors are now method of FTreeCoordinate. No version with periodic yet