function init_manager(manager::ExperimentManager)
    Mongoc.delete_many(manager.instances, Mongoc.BSON())
    Mongoc.delete_many(manager.decompositions, Mongoc.BSON())
    load_instance_by_paths(manager, "./data/case9.m", "./data/case9_sdp_ctr.txt", "./data/case9_sdp_mat.txt", "./data/case9.csv")
    load_instance_by_paths(manager, "./data/case9mod.m", "./data/case9mod_sdp_ctr.txt", "./data/case9mod_sdp_mat.txt", "./data/case9mod.csv")
    #load_instance_by_paths(manager, "./data/case1354pegase.m", "./data/case1354pegase_sdp_ctr.txt", "./data/case1354pegase_sdp_mat.txt", "./data/case1354pegase.csv")
end
