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ARCHCODE(3PVM)			 PVM Version 3.4		  ARCHCODE(3PVM)

NAME
     pvm_archcode  - Returns the data representation code for a PVM architecture
     name.

SYNOPSIS
     C	  int cod = pvm_archcode( char *arch )

     Fortran   call pvmfarchcode( arch, cod )

PARAMETERS
     arch    Character string containing the architecture name.

     cod     Integer returning architecture code.

DESCRIPTION
     The routine pvm_archcode returns an integer  given  an  architecture  name.
     The  code returned identifies machines with compatible binary data formats.
     For example, SUN4 and RS6K have the same code, while ALPHA has a  different
     one  (because  a  few  datatypes have different sizes).  This lets you know
     when you can get away with using PvmDataRaw instead of  PvmDataDefault  en-
     coding to pass messages between tasks on two machines.

     Naturally,  you  shouldn't  assume  the values returned by pvm_archcode are
     etched in stone; the numbers have no intrinsic meaning except that  if  two
     different arch names map to the same value then they're compatible.

     This  routine is actually obsolete in the sense that the architecture codes
     returned are already available in the  hi_dsig  field  of	the  pvmhostinfo
     structure	returned  by  pvm_config(),  as shown in the below example.  The
     routine is maintained for backwards compatibility only.

EXAMPLES
     C:
	  struct pvmhostinfo *hip;
	  int i;

	  pvm_config((int *)0, (int *)0, &hip);
	  i = pvm_archcode(hip[0].hi_arch);

	  /* or you could just do:  i = hip[0].hi_dsig;  */

     Fortran:
	  CALL PVMFARCHCODE( 'RS6K', k )

ERRORS
     On success, pvm_archcode returns a positive integer data signature.

     The following error conditions can be returned as well:

     PvmBadParam
	    giving an invalid architecture name.

     PvmNotFound
	    there is no host with the given architecture  name	in  the  current
	    virtual machine configuration.

     PvmSysErr
	    pvmd not responding.

SEE ALSO
     pvm_config(3PVM),	pvm_initsend(3PVM),  pvm_notify(3PVM),	pvm_tasks(3PVM),
     pvm_tidtohost(3PVM)

				 15 March, 1994 		  ARCHCODE(3PVM)

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