16.2.3 CE Functions

The Cosmic Environment  (CE) provides control for concurrent computation through a ``cube dæmon.'' This resource manager allows multiple real and emulated concurrent computers to be space-shared [Seitz:88a]. The following functions are provided, and we emulate these on systems that provide analogous host functionality (this emulation can be done efficiently on the nCUBE/2, almost trivially on the Gamma, and not at all on the Delta and CM-5):

• getmc gets multicomputer resource by type and size for space-sharing (also called getcube);
• freemc frees multicomputer resource currently in use (also called freecube);
• spawn spawns one or more node processes to a previously allocated multicomputer partition;
• ckill kills one or more extant processes on a previously allocated multicomputer partition.

• CE Programs