arch(1) [sunos man page]

arch(1) 							   User Commands							   arch(1)

NAME

       arch - display the architecture of the current host

SYNOPSIS

       arch [-k | archname]

DESCRIPTION

       The  arch utility displays the application architecture of the current host system. Due to extensive historical use of this command without
       any options, all SunOS 5.x SPARC based systems will return "sun4" as their application architecture. Use of this  command  is  discouraged.
       See NOTES section below.

       Systems	can  be  broadly classified by their architectures, which define what executables will run on which machines. A distinction can be
       made between kernel architecture and application architecture (or, commonly, just "architecture"). Machines that run different kernels  due
       to underlying hardware differences may be able to run the same application programs.

OPTIONS

       -k	Displays the kernel architecture, such as sun4u.  This defines which specific SunOS kernel will run on the machine, and has impli-
		cations only for programs that depend on the kernel explicitly (for example, ps(1)).

OPERANDS

       The following operand is supported:

       archname        Use archname to determine whether the application binaries for this application architecture can run on	the  current  host
		       system. The  archname must be a valid application architecture, such as	sun4, i86pc, and so forth.

		       If  application	binaries  for  archname can run on the current host system, TRUE (0) is returned. Otherwise,  FALSE (1) is
		       returned.

EXIT STATUS

       The following exit values are returned:

       0	Successful completion.

       >0	An error occurred.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       mach(1), ps(1), uname(1), attributes(5)

NOTES

       This command is provided for compatibility with previous releases and its use is discouraged. Instead, the uname  command  is  recommended.
       See  uname(1) for usage information.

SunOS 5.10							    21 Oct 2002 							   arch(1)

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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 encoding 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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arch(1) [sunos man page]

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