Boinc, An HPC high performance computing project organised by Berkeley ..

https://boinc.n-helix.com

Funded by grants; The boinc project accomplishes many goals; In the fields of science,
Projects run all year round, Tasks lasting from around 15 minutes to a few days..
Such work accomplishes the aim of advancing medicine, Astronomy & physics..
Chemistry & Industrial design or maths.

With vast potential sources of volunteers (For example universities & NGO)
Computation potential could be vast:

https://cern.n-helix.com/lhcathome/cpu_list.php for example cern 464.74 TeraFLOPS

http://www.wcgsig.com/

In truth many members try very hard for boinc research projects..
Events such as Boinc THOR FR do indeed draw professional servers into play!
Amazon cloud, Microsoft cloud & google..

Projects like Cern & WCG do indeed have mainframes at the service for many great projects,
Participating universities compete for resources on the world grid..

IBM & other corporations achieve much.

Examples :

https://wcg.n-helix.com

https://lhcathome.cern.ch/lhcathome/home.php

https://einsteinathome.org/

https://csgrid.org/csg/#

https://gpugrid.n-helix.com/science.php

Explanations & research

http://science.n-helix.com/2017/04/boinc.html

https://science.n-helix.com/2018/09/hpc-pack-install-guide.html

QE