u4.50.01 Keyword SOLVEUR# 1. But 2. Syntax 3. Operands 3.1. Operand METHODE 3.2. Parameters common to several solvers 3.3. METHODE =” MULT_FRONT “ 3.4. METHODE =” LDLT “ 3.5. METHODE =” MUMPS “ 3.6. METHODE =” GCPC “ 3.7. METHODE =” PETSC “