Newsgroups: comp.parallel.pvm
Path: ukc!uknet!pipex!howland.reston.ans.net!gatech!concert!unccsun.uncc.edu!jlrobins
From: jlrobins@unccsun.uncc.edu (James Lee Robinson)
Subject: A few questions...
Message-ID: <CMF5qA.Exq@unccsun.uncc.edu>
Sender: jlrobins@uncc.edu (James Robinson)
Organization: University of NC at Charlotte
Date: Wed, 9 Mar 1994 22:42:09 GMT
Lines: 41

I've just installed PVM for public use here at U.N.C.C. I had to do a fair bit
of systems programming, because we were unable to use rsh -- it has been
disabled on campus, along with rexec, rlogin, and telnet (whoever is sitting
at the workstation gets _full_ use of its power -- well, until now :). So,
I had to write a suite of programs to replace the rsh functionality which 
included special security measures to gard agains misuse. For example, 
each machine available for PVM use only allows certain users to use the
PVM "resource", PVM will work only at administrated times to avoid impact
with general workstation users, etc. A sparc IPC is not a lot to share, eh?

Anyway, It seems that either I screwed something up, or it never worked to
begin with in pPVM 3.2.6 grabbed from Netlib:

	1)Machine speeds specified in the hosts file. Everything except for the
		master stays at 1000. I'd like the IPC to be as fast as our
		sparc 10, but thats not allowed by alws of physics.

	2)Default path to search for executables. I'm not sure if one is 
		supported, but I know that things aren't working right
		now. The *ep line in the hosts file works, but the users
		want things to work without specifying a hosts file. They
		like doing things manually. Point me in the right direction!

	3)The man pages say that once you have the virtual machine started,
		you can start the console from any of those machines. This
		just seems to hang. Can you do this on your "normal" 
		configs? If so, let me know. If not, then tell me that I
		didn't do my job correctly.

Lastly, I'd like to thank the PVM authors for the RSH_COMMAND (I think thats
what it was) #define. That certainly made my job a lot easier.

Also, if you have some spare time, check out the comments in the code. Some
are pretty entertaining. startup.c: "spawn more pvmd's. It's good for you"

 
-- 
// James Robinson ::: University of North Carolina at Charlotte      \\
// jlrobins@uncc.edu: Senior, BS Computer Science, Math Minor (Fun!) \\
// FreeBSD/XFree86 :: The best things in life are Free!              \\
Frank Zappa : "There's a big difference in bending down and kneeling over." 

