CVXPY
Minimize
  Sum(m(array([ True, False]), slice(None, None, None)), None, False)
Subject To
Bounds
 0.0 <= m
End
----------------------------------------
AFTER COMPILATION
Minimize
  C0 + C2
Subject To
 R0: - C0 <= 0
 R1: - C1 <= 0
 R2: - C2 <= 0
 R3: - C3 <= 0
Bounds
 C0 free
 C1 free
 C2 free
 C3 free
End
----------------------------------------
GUROBI
Minimize
  m[0,0] + m[0,1] + 0 m[1,0] + 0 m[1,1]
Subject To
Bounds
End