how can we delete the cache files while we using aggregator transformaation?

 After the session executes DTM removes the cache memory and deletes
            cachefiles
            Incase of persistant cache and incremtal aggregation cache files are
            saved.
            Generally cache files are created in Informatica sever no default
            memory is allocated for this once memory exceeded than these (index
            cache) files You can see this in cache directory.