Hi,

I rely on PETSc to deal with real and complex sparse matrices of dimension 1e4 
* 1e4 or above. I want to use real version when only real matrices are 
involved, to achieve better performance, and use complex version only when 
complex matrices get involved. But in the manual it says different versions can 
not be used at the same time. Can this restriction be circumvented? If not, 
where does the restriction come from?

All the best,
C.-Y. GAO

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