The Cell Messaging Layer is a communication library for clusters of Cell Broadband Engine processors. It implements a subset of the popular MPI message-passing API on the Cell's SPE processors, with one MPI rank per SPE across any number of Cells and the ability for any SPE to communicate directly with any other SPE, even across a network. The Cell Messaging Layer thereby makes programming clusters of Cell processors similar to programming clusters of conventional CPUs. License: GNU General Public License v2 Changes: This release fixes two critical bugs that would sometimes cause code running across multiple Cell blades to hang. The Cell Messaging Layer now seems to run reliably on clusters of Cell processors.

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