/usr/bin/cpustat
/usr/bin/glreadtest
/usr/bin/glxspheres64
/usr/bin/glxspheres
/usr/bin/nettest
/usr/bin/tcbench
/usr/bin/vglclient
/usr/bin/vglconfig
/usr/bin/vglconnect
/usr/bin/vglgenkey
/usr/bin/vgllogin
/usr/bin/vglrun
/usr/bin/vglserver_config
You may install this package on CentOS with
yum
install VirtualGL