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In this paper, we analyze the dependence of the topological charge densityfrom the overlap operator on the Wilson mass parameter in the overlap kernel bythe symmetric multi-probing source (SMP) method. We observe that thenon-trivial topological objects are removed as the Wilson mass is increased. Acomparison of topological charge density calculated by the SMP method usingfermionic definition with that of gluonic definition by the Wilson flow methodis shown. A matching procedure for these two methods is used. We find thatthere is a best match for topological charge density between gluonic definitionwith varied Wilson flow time and fermionic definition with different Wilsonmass. By using the matching procedure, the proper flow time of Wilson flow inthe calculation of topological charge density can be estimated. As the latticespacing $a$ decreases, the proper flow time also decreases, as expected.

The dependence of overlap topological charge density on Wilson mass parameter