BOINC provides a feature called homogeneous redundancy for such applications. You can enable it for a project by including the line
<homogeneous_redundancy/>
in the config.xml file.

Alternatively, you can enable it selectively for a single application by setting the homogeneous_redundancy field in its database record.

When this feature is enabled, the BOINC scheduler will send results for a given workunit only to hosts with the same operation system name and CPU vendor (i.e., the os_name and p_vendor fields of the host description). For example: if a result has been sent to a host of type (Windows XP, Intel), then other results of that workunit will only be sent to hosts of type (Windows XP, Intel).

If homogeneous redundancy is enabled, it may be possible to use strict equality to compare redundant results. "; page_tail(); ?>