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Dear vasp users :
I want to a constrained local moment calculation using vasp ,
the manual give the example about constraining the direction of spin moment , but how to fix the value of spin moment of each atom ,so the calculation converges to a given spin moment ? I think noncollinear magnetism calculation can do this , but I am not sure. Can anyone give me a definite answer , or tell me how to do this kind of calculation?

in the current version of vasp, the magnitudes of the local moments cannot be fixed. The total moment of the cell can be fixed by setting NUPDOWN (but that's not what you need, isn't it?)