@TechReport{	  it:2003-026,
  author	= {Henrik L{\"o}f and Zoran Radovic and Erik Hagersten},
  title		= {{THROOM} --- Running {POSIX} Multithreaded Binaries on a
		  Cluster},
  institution	= {Department of Information Technology, Uppsala University},
  department	= {Division of Computer Systems},
  year		= {2003},
  number	= {2003-026},
  month		= apr,
  abstract	= {Most software distributed shared memory systems (SW-DSMs)
		  lack industry standard interfaces that limit their
		  applicability to a small set of shared-memory applications.
		  In order to gain general acceptance, SW-DSMs should support
		  the same look-and-feel of shared memory as hardware DSMs.
		  This paper presents a runtime system concept that enables
		  unmodified POSIX P1003.1c (Pthreads) compliant binaries to
		  run transparently on clustered hardware. The key idea is to
		  extend the single process model of multi-threading to a
		  multi-process model where threads are distributed to
		  processes executing in remote nodes. The distributed
		  threads execute in a global shared address space made
		  coherent by a fine-grain SW-DSM layer. We also present
		  THROOM, a proof-of-concept implementation that runs
		  unmodified Pthread binaries on a virtual cluster modeled as
		  standard UNIX processes. THROOM runs on top of the DSZOOM
		  fine-grain SW-DSM system with limited OS support.}
}