Threads on SGI machine:

AVAILABILITY:
	we have the library in the SGI machines

INFORMATION SOURCES:
	-- for thread level parallelism, go to

	 	% insight ---> SGI Developer ---> Topics in IRIX Programming
			  ---> Chapter 11 

	-- for more about parallel processing, see the SGI tutorial:
 		http://www.sgi.com/Products/hardware/power/operations/tutorial.html

	-- Man pages:
		% man pthread_cancel

DEMOS:
	/local/demos/threads

THREADS AND OPENGL:

	Date: Thu, 19 Feb 1998 15:55:30 -0500 (EST)
	From: "Adel M. Hanna" 
	To: yap@cs.nyu.edu
	Subject: Re: SGI case# 0910634 - OpenGL/pthreads (fwd)
	
	>To: Doug Sherburne 
	>Subject: Re: SGI case# 0910634 - OpenGL/pthreads
	> 
	> In IRIX 6.2 pthread applications cannot use the OpenGL library. The
	> problem is that OpenGL's model is that a graphics context only be used
	> by a single application thread at any time. The implementation
	> dependency is that the graphics context is associated with one kernel
	> entity (sproc) at a time. Pthreads break this model because the
	> underlying kernel entity can change for a given thread at any time and
	> the user has no control over the mapping. 
	> 
	> In IRIX 6.3 and later, this issue is resolved so that the libraries
	> cooperate. 
	> 
	> Since OpenGL is window system independent it is noteworthy that while
	> X/Xt are thread safe,
	> Motif is not.
	> 
	> -Doug
	>