As of V 1.77 BoincTasks includes an app_config.xml editor, that should work with BOINC 7.10.2.
More info here
https://boinc.berkeley.edu/wiki/Client_configurationTo use select the Project Tab -> select a project -> Menu Extra Edit config file (app_config.xml)
The test entry:
<app_config>
<app>
<name>setiathome_v8</name>
<max_concurrent>1</max_concurrent>
<gpu_versions>
<gpu_usage>.5</gpu_usage>
<cpu_usage>.4</cpu_usage>
</gpu_versions>
<fraction_done_exact>0</fraction_done_exact>
<report_results_immediately>0</report_results_immediately>
</app>
<app_version>
<app_name>setiathome_v8</app_name>
<plan_class></plan_class>
<cmdline>--nthreads 7</cmdline>
<avg_ncpus>0.000000</avg_ncpus>
<ngpus>4.000000</ngpus>
</app_version>
<project_max_concurrent>0</project_max_concurrent>
<report_results_immediately>0</report_results_immediately>
</app_config>
**NOTE:
The BOINC client changes:
<gpu_versions>
<gpu_usage>.5</gpu_usage>
<cpu_usage>.4</cpu_usage>
</gpu_versions>
into:
<gpu_gpu_usage>0.500000</gpu_gpu_usage>
<gpu_cpu_usage>0.400000</gpu_cpu_usage>
Both are valid.