RQM 4.0 can distribute automated test on machine without manual selection of machines

RQM v4.0 can now do distributed testing. While executing a Test Suite with automated test case, You no longer required to assign adapter for each step. Rather create a Testcell and select it in Test Suite execution dialog.
RQM will intelligently distribute test among all machines available within Testcell for execution in efficient manner.

Read this article for more info http://www.ibm.com/developerworks/rational/library/automate-tests-environment/index.html

Cheers