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       CONSTANTS - constants for LAM Fortran programming

       The following table describes the values appropriate to various constants used in LAM.  It
       also describes the meaning of the constants and lists the cpp(1) header files in which the
       constants  can  be  found.   To	use these files, the Fortran source files will need to be
       passed through cpp(1) before they are given to the Fortran compiler.  Some compiler  driv-
       ers will run cpp(1) if the source file suffix is .F.

       In  lieu  of  cpp(1),  the  constants can be copied to parameter statements in the Fortran
       source files.


       Network Constants:

       LOCAL	   -2147483647	local node			       NET.h
       MAXNMSGLEN  8192 	maximum length of one message packet   NET.h
       NHDSIZE	   8		maximum size in words of ndata	       NET.h
       NOTNODEID   -2147483648	error occurred in IGNDID(2)	       NET.h
       NOTNODETYPE -2147483648	error occurred in IGRTP(2)	       NET.h

       Node Types:

       NTCAST	   2		multicast definition		       NET.h
       NTWASTE	   4		not fully used/wasted		       NET.h
       NTDISK	   8		node with attached disk 	       NET.h
       NTTUBE	   16		node with attached video unit	       NET.h
       NTJONES	   32		node is a neighbour		       NET.h
       NTBOOT	   64		neighbour node to boot		       NET.h
       NTALL	   127		matches any type		       NET.h

       Message Flags:

       NOBUF	   16		turn off buffering		       NET.h
       NREEL	   1024 	multireel			       NET.h
       DRAWDATA    65536	ndata representation will not be       NET.h
       DINT4DATA   131072	ndata holds 8 32-bit integer	       NET.h
       DFLT4DATA   262144	ndata holds 8 single precision reals   NET.h
       DFLT8DATA   524288	ndata holds 4 double precision reals   NET.h
       DRAWMSG	   1048576	nmsg representation will not be        NET.h
       DINT4MSG    2097152	nmsg holds integers		       NET.h
       DFLT4MSG    4194304	nmsg holds single precision reals      NET.h
       DFLT8MSG    8388608	nmsg holds double precision reals      NET.h

       Reserved Cast Identifiers:

       HOST2ALL    -2147483646	multicast from origin to all nodes     NET.h
       HOST2COMP   -2147483642	multicast from origin to compute nodes NET.h

       File Flags:

       O_RDONLY    0		open for reading only		       FREQ.h
       O_WRONLY    1		open for writing only		       FREQ.h
       O_RDWR	   2		open for reading and writing	       FREQ.h
       O_APPEND    8		append on each write		       FREQ.h
       O_CREAT	   512		create file if it does not exist       FREQ.h
       O_TRUNC	   1024 	truncate length to 0		       FREQ.h
       O_EXCL	   2048 	error if create and file exists        FREQ.h
       O_SYNC	   8192 	update file data and file status       FREQ.h
				before writing
       O_LOCK	   65536	lock file descriptor active	       FREQ.h
       O_REUSE	   131072	reuse existing file descriptor	       FREQ.h
       O_1WAY	   4194304	do not acknowledge writes	       FREQ.h

       Process Runtime Flags:

       RTF_WAIT    16		child sends a message to	       NET.h
				    parent when it exits
       RTF_TRACE   256		enable process tracing		       NET.h

LAM 6.5.8				  November, 2002			     CONSTANTS(5)
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