int SURF_CPU_LEVEL; //Surf cpu level
int SURF_HOST_LEVEL; //Surf host level
int SIMIX_STORAGE_LEVEL; //Simix storage level
-int MSG_HOST_LEVEL; //Msg host level
int MSG_STORAGE_LEVEL; //Msg storage level
int MSG_FILE_LEVEL; //Msg file level
int SD_HOST_LEVEL; //Simdag host level