You can set a project.pool attribute to associate a resource pool with a project.
You can bind a running process to a pool in two ways:
You can use the poolbind command described in poolbind(1M) command to bind a specific process to a named resource pool.
You can use the project.pool attribute in the project database to identify the pool binding for a new login session or a task that is launched through the newtask command. See the newtask(1), projmod(1M), and project(4) man pages.