You can configure the names of output files, though applications append the client number to their stats and latency files. So for example, a horizontal scaling test with two consumer threads produces two statistics files: ConsStats1.csv and ConsStats2.csv.
Default output filenames (and the associated parameters you use to generate the files) are as follows:
Table 6: Performance Suite Applications and Associated Configuration Files
PARAMETER
DEFAULT
DESCRIPTION
-latencyFile
(none)
Specifies the filename of the latency file produced.