src/mpi/parallelempi.cpp:1380: error: DEAD_STORE The value written to &rA (type MatriceCreuse*) is never used. Showing all 1 steps of the trace src/mpi/parallelempi.cpp:1380:13: Write of unused value 1378. *rm=R(); // set the matrix to Zero .. 1379. r->A.master(rm); 1380. rA=r->A; ^ 1381. 1382. }