ex125: nrhs 2
 SUPERLU_DIST LU:
 0-the LU numfactorization 
   0-the MatMatSolve 
   1-the MatMatSolve 
   0-the MatSolve 
   1-the MatSolve 
 1-the LU numfactorization 
   0-the MatMatSolve 
   1-the MatMatSolve 
   0-the MatSolve 
   1-the MatSolve